/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0875_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0875_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 daf798858940169b7d9821c83e6cf92e1bd7ea4e --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ......................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0875_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 daf798858940169b7d9821c83e6cf92e1bd7ea4e --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:29:26,886 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:29:26,888 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:29:26,906 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:29:26,908 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:29:26,910 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:29:26,912 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:29:26,915 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:29:26,919 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:29:26,922 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:29:26,925 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:29:26,926 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:29:26,927 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:29:26,930 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:29:26,937 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:29:26,939 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:29:26,943 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:29:26,947 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:29:26,952 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:29:26,955 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:29:26,958 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:29:26,961 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:29:26,969 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:29:26,969 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:29:26,969 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:29:26,970 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:29:26,971 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:29:26,975 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:29:26,977 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:29:26,980 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:29:26,980 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:29:26,981 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:29:26,981 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:29:26,982 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:29:26,983 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:29:26,984 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:29:26,984 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:29:27,015 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:29:27,015 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:29:27,016 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:29:27,017 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:29:27,022 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:29:27,022 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:29:27,022 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:29:27,023 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:29:27,023 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:29:27,023 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:29:27,023 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:29:27,023 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:29:27,024 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:29:27,024 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:29:27,024 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:29:27,024 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:29:27,024 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:29:27,026 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:29:27,026 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:29:27,026 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:29:27,026 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:29:27,027 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:29:27,027 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:29:27,027 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:29:27,027 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:29:27,027 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:29:27,028 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:29:27,028 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:29:27,028 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:29:27,028 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 -> daf798858940169b7d9821c83e6cf92e1bd7ea4e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:29:27,109 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:29:27,125 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:29:27,130 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:29:27,132 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:29:27,132 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:29:27,133 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0875_true-unreach-call.c [2018-09-21 18:29:27,485 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bb9536af/1938b40c17a24ea2949a51497841126f/FLAG36e5a1633 [2018-09-21 18:29:27,722 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:29:27,726 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0875_true-unreach-call.c [2018-09-21 18:29:27,747 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bb9536af/1938b40c17a24ea2949a51497841126f/FLAG36e5a1633 [2018-09-21 18:29:27,766 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bb9536af/1938b40c17a24ea2949a51497841126f [2018-09-21 18:29:27,769 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:29:27,773 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:29:27,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:29:27,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:29:27,783 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:29:27,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:29:27" (1/1) ... [2018-09-21 18:29:27,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ccc03c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:29:27, skipping insertion in model container [2018-09-21 18:29:27,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:29:27" (1/1) ... [2018-09-21 18:29:27,801 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:29:28,163 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:882) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:968) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.lambda$38(StandardFunctionHandler.java:261) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:160) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1549) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:316) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:513) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1928) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:242) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1748) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:278) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:281) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1725) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:278) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:281) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:339) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1573) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:204) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3980) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2445) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:183) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.preRun(MainDispatcher.java:348) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.Dispatcher.run(Dispatcher.java:220) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.doTranslation(CACSL2BoogieTranslatorObserver.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:152) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-09-21 18:29:28,176 INFO L168 Benchmark]: Toolchain (without parser) took 406.37 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:29:28,180 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:29:28,182 INFO L168 Benchmark]: CACSL2BoogieTranslator took 400.92 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:29:28,185 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 400.92 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:882) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:29:30,471 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:29:30,473 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:29:30,485 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:29:30,486 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:29:30,487 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:29:30,488 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:29:30,490 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:29:30,492 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:29:30,493 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:29:30,494 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:29:30,494 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:29:30,495 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:29:30,497 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:29:30,498 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:29:30,499 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:29:30,500 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:29:30,502 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:29:30,504 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:29:30,505 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:29:30,507 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:29:30,508 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:29:30,511 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:29:30,511 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:29:30,511 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:29:30,512 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:29:30,514 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:29:30,514 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:29:30,515 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:29:30,516 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:29:30,517 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:29:30,517 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:29:30,518 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:29:30,518 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:29:30,519 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:29:30,520 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:29:30,520 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:29:30,538 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:29:30,539 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:29:30,540 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:29:30,540 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:29:30,541 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:29:30,541 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:29:30,541 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:29:30,541 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:29:30,542 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:29:30,542 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:29:30,542 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:29:30,542 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:29:30,542 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:29:30,542 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:29:30,543 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:29:30,543 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:29:30,543 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:29:30,543 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:29:30,543 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:29:30,544 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:29:30,544 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:29:30,544 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:29:30,544 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:29:30,544 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:29:30,545 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:29:30,545 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:29:30,546 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:29:30,546 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:29:30,546 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:29:30,547 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:29:30,547 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:29:30,547 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 -> daf798858940169b7d9821c83e6cf92e1bd7ea4e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:29:30,627 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:29:30,645 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:29:30,649 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:29:30,651 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:29:30,652 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:29:30,653 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0875_true-unreach-call.c [2018-09-21 18:29:30,989 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20af2acc2/31358ff6223f492d960e13aa84a94c82/FLAG5c99d114b [2018-09-21 18:29:31,247 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:29:31,248 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0875_true-unreach-call.c [2018-09-21 18:29:31,268 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20af2acc2/31358ff6223f492d960e13aa84a94c82/FLAG5c99d114b [2018-09-21 18:29:31,283 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20af2acc2/31358ff6223f492d960e13aa84a94c82 [2018-09-21 18:29:31,287 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:29:31,290 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:29:31,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:29:31,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:29:31,301 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:29:31,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:29:31" (1/1) ... [2018-09-21 18:29:31,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53a0a11e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:29:31, skipping insertion in model container [2018-09-21 18:29:31,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:29:31" (1/1) ... [2018-09-21 18:29:31,318 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:29:31,833 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:29:31,862 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:29:32,021 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:29:32,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:29:32 WrapperNode [2018-09-21 18:29:32,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:29:32,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:29:32,082 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:29:32,082 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:29:32,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:29:32" (1/1) ... [2018-09-21 18:29:32,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:29:32" (1/1) ... [2018-09-21 18:29:32,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:29:32" (1/1) ... [2018-09-21 18:29:32,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:29:32" (1/1) ... [2018-09-21 18:29:32,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:29:32" (1/1) ... [2018-09-21 18:29:32,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:29:32" (1/1) ... [2018-09-21 18:29:32,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:29:32" (1/1) ... [2018-09-21 18:29:32,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:29:32,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:29:32,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:29:32,360 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:29:32,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:29:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:29:32,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:29:32,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:29:32,428 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_float [2018-09-21 18:29:32,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-09-21 18:29:32,429 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2018-09-21 18:29:32,429 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2018-09-21 18:29:32,429 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-21 18:29:32,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_powf [2018-09-21 18:29:32,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-21 18:29:32,430 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:29:32,431 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:29:32,431 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:29:32,431 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_float [2018-09-21 18:29:32,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:29:32,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:29:32,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:29:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:29:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:29:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:29:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-09-21 18:29:32,434 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2018-09-21 18:29:32,434 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2018-09-21 18:29:32,435 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-21 18:29:32,435 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_powf [2018-09-21 18:29:32,435 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-21 18:29:32,435 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:29:32,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:29:32,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:29:32,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:29:32,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:29:32,883 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:32,930 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:33,044 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:33,079 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:33,354 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:33,397 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:33,515 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:33,562 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:38,447 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:38,475 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:38,712 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:38,718 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:40,942 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:40,951 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:43,187 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:43,193 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:45,314 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:45,350 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:47,604 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:47,611 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:48,128 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:48,138 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:49,392 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:49,407 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:52,518 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:52,536 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:54,846 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:54,853 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:57,143 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:57,151 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:57,723 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:57,763 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:57,944 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:57,950 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:59,128 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:59,136 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:59,178 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:59,200 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:59,311 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:59,327 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:59,924 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:59,929 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:29:59,973 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:29:59,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:29:59 BoogieIcfgContainer [2018-09-21 18:29:59,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:29:59,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:29:59,976 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:29:59,981 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:29:59,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:29:31" (1/3) ... [2018-09-21 18:29:59,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e487589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:29:59, skipping insertion in model container [2018-09-21 18:29:59,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:29:32" (2/3) ... [2018-09-21 18:29:59,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e487589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:29:59, skipping insertion in model container [2018-09-21 18:29:59,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:29:59" (3/3) ... [2018-09-21 18:29:59,988 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0875_true-unreach-call.c [2018-09-21 18:29:59,999 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:30:00,008 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:30:00,048 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:30:00,049 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:30:00,049 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:30:00,050 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:30:00,050 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:30:00,050 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:30:00,050 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:30:00,050 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:30:00,051 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:30:00,084 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states. [2018-09-21 18:30:00,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-21 18:30:00,098 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:30:00,099 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] [2018-09-21 18:30:00,102 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:30:00,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1231572039, now seen corresponding path program 1 times [2018-09-21 18:30:00,114 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:30:00,114 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-21 18:30:00,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:30:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:30:00,308 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:30:00,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:30:00,331 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:30:00,349 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:30:00,349 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:30:00,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:30:00,372 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:30:00,372 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:30:00,376 INFO L87 Difference]: Start difference. First operand 503 states. Second operand 2 states. [2018-09-21 18:30:00,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:30:00,443 INFO L93 Difference]: Finished difference Result 503 states and 568 transitions. [2018-09-21 18:30:00,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:30:00,446 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 26 [2018-09-21 18:30:00,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:30:00,487 INFO L225 Difference]: With dead ends: 503 [2018-09-21 18:30:00,487 INFO L226 Difference]: Without dead ends: 498 [2018-09-21 18:30:00,489 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:30:00,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2018-09-21 18:30:00,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 498. [2018-09-21 18:30:00,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 498 states. [2018-09-21 18:30:00,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 562 transitions. [2018-09-21 18:30:00,578 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 562 transitions. Word has length 26 [2018-09-21 18:30:00,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:30:00,579 INFO L480 AbstractCegarLoop]: Abstraction has 498 states and 562 transitions. [2018-09-21 18:30:00,579 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:30:00,579 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 562 transitions. [2018-09-21 18:30:00,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-09-21 18:30:00,583 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:30:00,583 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] [2018-09-21 18:30:00,583 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:30:00,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1662723441, now seen corresponding path program 1 times [2018-09-21 18:30:00,585 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:30:00,585 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-21 18:30:00,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:30:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:30:00,767 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:30:00,869 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:30:00,888 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:30:00,888 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:30:00,902 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:00,917 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:00,917 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:30:00,972 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:30:00,984 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:30:00,985 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:30:01,010 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:01,029 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:01,030 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:30:01,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:30:01,206 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:30:01,222 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:30:01,222 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:30:01,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:30:01,226 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:30:01,227 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:30:01,227 INFO L87 Difference]: Start difference. First operand 498 states and 562 transitions. Second operand 9 states. [2018-09-21 18:30:01,981 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-21 18:30:09,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:30:09,265 INFO L93 Difference]: Finished difference Result 502 states and 565 transitions. [2018-09-21 18:30:09,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:30:09,267 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2018-09-21 18:30:09,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:30:09,274 INFO L225 Difference]: With dead ends: 502 [2018-09-21 18:30:09,275 INFO L226 Difference]: Without dead ends: 500 [2018-09-21 18:30:09,277 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:30:09,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2018-09-21 18:30:09,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 498. [2018-09-21 18:30:09,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 498 states. [2018-09-21 18:30:09,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 561 transitions. [2018-09-21 18:30:09,312 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 561 transitions. Word has length 62 [2018-09-21 18:30:09,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:30:09,315 INFO L480 AbstractCegarLoop]: Abstraction has 498 states and 561 transitions. [2018-09-21 18:30:09,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:30:09,315 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 561 transitions. [2018-09-21 18:30:09,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-09-21 18:30:09,318 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:30:09,318 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] [2018-09-21 18:30:09,318 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:30:09,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1109700949, now seen corresponding path program 1 times [2018-09-21 18:30:09,320 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:30:09,320 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-21 18:30:09,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:30:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:30:09,495 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:30:09,564 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:30:09,568 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:30:09,568 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:30:09,574 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:09,590 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:09,591 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:30:09,628 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:30:09,632 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:30:09,633 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:30:09,637 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:09,640 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:09,641 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:30:09,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:30:09,868 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:30:09,887 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:30:09,888 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-21 18:30:09,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-21 18:30:09,889 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-21 18:30:09,889 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:30:09,889 INFO L87 Difference]: Start difference. First operand 498 states and 561 transitions. Second operand 10 states. [2018-09-21 18:30:19,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:30:19,856 INFO L93 Difference]: Finished difference Result 504 states and 566 transitions. [2018-09-21 18:30:19,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:30:19,857 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 64 [2018-09-21 18:30:19,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:30:19,861 INFO L225 Difference]: With dead ends: 504 [2018-09-21 18:30:19,861 INFO L226 Difference]: Without dead ends: 502 [2018-09-21 18:30:19,862 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2018-09-21 18:30:19,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2018-09-21 18:30:19,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 498. [2018-09-21 18:30:19,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 498 states. [2018-09-21 18:30:19,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 560 transitions. [2018-09-21 18:30:19,878 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 560 transitions. Word has length 64 [2018-09-21 18:30:19,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:30:19,879 INFO L480 AbstractCegarLoop]: Abstraction has 498 states and 560 transitions. [2018-09-21 18:30:19,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-21 18:30:19,879 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 560 transitions. [2018-09-21 18:30:19,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-09-21 18:30:19,881 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:30:19,882 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] [2018-09-21 18:30:19,882 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:30:19,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1997204630, now seen corresponding path program 1 times [2018-09-21 18:30:19,884 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:30:19,885 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 [2018-09-21 18:30:19,892 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:30:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:30:20,055 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:30:20,218 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:30:20,230 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:30:20,230 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:30:20,257 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:20,329 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:20,329 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:30:20,381 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:30:20,384 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:30:20,384 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:30:20,388 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:20,391 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:20,391 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:30:20,433 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-09-21 18:30:20,438 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-09-21 18:30:20,438 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:30:20,444 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:20,455 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:30:20,455 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2018-09-21 18:30:20,495 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2018-09-21 18:30:20,499 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-09-21 18:30:20,499 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:30:20,504 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:20,524 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:30:20,524 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:40, output treesize:25 [2018-09-21 18:30:20,930 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:30:20,940 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:30:20,941 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:30:20,953 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:20,980 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:20,981 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:25 [2018-09-21 18:30:21,079 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:30:21,085 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:30:21,086 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:30:21,094 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:21,105 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:21,106 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:13 [2018-09-21 18:30:21,304 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:30:21,308 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:30:21,308 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:30:21,314 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:21,339 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:21,340 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:31 [2018-09-21 18:30:21,460 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:30:21,465 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:30:21,465 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:30:21,469 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:21,480 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:30:21,481 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:19 [2018-09-21 18:30:22,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:30:22,102 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:30:22,120 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:30:22,120 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2018-09-21 18:30:22,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-09-21 18:30:22,121 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-09-21 18:30:22,121 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=419, Unknown=0, NotChecked=0, Total=462 [2018-09-21 18:30:22,121 INFO L87 Difference]: Start difference. First operand 498 states and 560 transitions. Second operand 22 states. [2018-09-21 18:30:27,007 WARN L178 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-09-21 18:31:06,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:31:06,527 INFO L93 Difference]: Finished difference Result 608 states and 681 transitions. [2018-09-21 18:31:06,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-09-21 18:31:06,530 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 64 [2018-09-21 18:31:06,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:31:06,534 INFO L225 Difference]: With dead ends: 608 [2018-09-21 18:31:06,534 INFO L226 Difference]: Without dead ends: 605 [2018-09-21 18:31:06,536 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=199, Invalid=1781, Unknown=0, NotChecked=0, Total=1980 [2018-09-21 18:31:06,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2018-09-21 18:31:06,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 497. [2018-09-21 18:31:06,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2018-09-21 18:31:06,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 558 transitions. [2018-09-21 18:31:06,552 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 558 transitions. Word has length 64 [2018-09-21 18:31:06,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:31:06,552 INFO L480 AbstractCegarLoop]: Abstraction has 497 states and 558 transitions. [2018-09-21 18:31:06,552 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-09-21 18:31:06,554 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 558 transitions. [2018-09-21 18:31:06,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-09-21 18:31:06,556 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:31:06,556 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] [2018-09-21 18:31:06,557 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:31:06,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1732927797, now seen corresponding path program 1 times [2018-09-21 18:31:06,559 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:31:06,559 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-21 18:31:06,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:31:06,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:31:06,734 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:31:06,768 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:31:06,773 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:31:06,773 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:31:06,777 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:06,789 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:06,789 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:31:06,824 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:31:06,827 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:31:06,828 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:31:06,830 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:06,833 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:06,833 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:31:06,872 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-09-21 18:31:06,876 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-09-21 18:31:06,877 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:31:06,881 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:06,893 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:31:06,893 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2018-09-21 18:31:06,932 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2018-09-21 18:31:06,951 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-09-21 18:31:06,952 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:31:06,977 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:07,003 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:31:07,004 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:40, output treesize:25 [2018-09-21 18:31:07,494 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:31:07,514 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:31:07,515 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:31:07,541 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:07,551 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:07,551 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:31:07,870 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:31:07,875 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:31:07,875 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:31:07,881 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:07,884 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:07,884 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:31:08,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:31:08,335 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:31:08,347 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:31:08,347 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2018-09-21 18:31:08,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-09-21 18:31:08,348 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-09-21 18:31:08,348 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2018-09-21 18:31:08,350 INFO L87 Difference]: Start difference. First operand 497 states and 558 transitions. Second operand 19 states. [2018-09-21 18:31:11,743 WARN L178 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-21 18:31:26,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:31:26,378 INFO L93 Difference]: Finished difference Result 645 states and 740 transitions. [2018-09-21 18:31:26,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-21 18:31:26,380 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 66 [2018-09-21 18:31:26,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:31:26,384 INFO L225 Difference]: With dead ends: 645 [2018-09-21 18:31:26,385 INFO L226 Difference]: Without dead ends: 642 [2018-09-21 18:31:26,386 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=158, Invalid=1248, Unknown=0, NotChecked=0, Total=1406 [2018-09-21 18:31:26,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2018-09-21 18:31:26,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 509. [2018-09-21 18:31:26,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 509 states. [2018-09-21 18:31:26,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 579 transitions. [2018-09-21 18:31:26,405 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 579 transitions. Word has length 66 [2018-09-21 18:31:26,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:31:26,405 INFO L480 AbstractCegarLoop]: Abstraction has 509 states and 579 transitions. [2018-09-21 18:31:26,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-09-21 18:31:26,406 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 579 transitions. [2018-09-21 18:31:26,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-09-21 18:31:26,408 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:31:26,409 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] [2018-09-21 18:31:26,409 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:31:26,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1370181292, now seen corresponding path program 1 times [2018-09-21 18:31:26,410 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:31:26,410 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-21 18:31:26,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:31:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:31:26,601 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:31:26,657 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:31:26,674 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:31:26,675 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:31:26,690 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:26,701 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:26,701 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:31:26,725 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:31:26,729 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:31:26,729 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:31:26,733 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:26,737 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:26,737 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:31:26,802 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-09-21 18:31:26,811 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-09-21 18:31:26,812 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:31:26,816 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:26,829 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:31:26,829 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2018-09-21 18:31:26,868 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2018-09-21 18:31:26,874 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-09-21 18:31:26,874 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:31:26,879 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:26,888 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:31:26,889 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:40, output treesize:25 [2018-09-21 18:31:27,257 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:31:27,261 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:31:27,262 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:31:27,267 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:27,276 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:27,276 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:31:27,373 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:31:27,387 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:31:27,388 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:31:27,391 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:27,395 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:27,395 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:31:27,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:31:27,863 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:31:27,875 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:31:27,875 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-21 18:31:27,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-21 18:31:27,876 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-21 18:31:27,876 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2018-09-21 18:31:27,877 INFO L87 Difference]: Start difference. First operand 509 states and 579 transitions. Second operand 18 states. [2018-09-21 18:31:41,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:31:41,866 INFO L93 Difference]: Finished difference Result 620 states and 701 transitions. [2018-09-21 18:31:41,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-09-21 18:31:41,869 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 67 [2018-09-21 18:31:41,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:31:41,873 INFO L225 Difference]: With dead ends: 620 [2018-09-21 18:31:41,873 INFO L226 Difference]: Without dead ends: 617 [2018-09-21 18:31:41,874 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=145, Invalid=1115, Unknown=0, NotChecked=0, Total=1260 [2018-09-21 18:31:41,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2018-09-21 18:31:41,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 497. [2018-09-21 18:31:41,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2018-09-21 18:31:41,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 556 transitions. [2018-09-21 18:31:41,889 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 556 transitions. Word has length 67 [2018-09-21 18:31:41,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:31:41,889 INFO L480 AbstractCegarLoop]: Abstraction has 497 states and 556 transitions. [2018-09-21 18:31:41,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-21 18:31:41,889 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 556 transitions. [2018-09-21 18:31:41,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-09-21 18:31:41,892 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:31:41,892 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] [2018-09-21 18:31:41,892 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:31:41,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1551413492, now seen corresponding path program 1 times [2018-09-21 18:31:41,893 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:31:41,893 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 [2018-09-21 18:31:41,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:31:42,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:31:42,333 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:31:42,367 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:31:42,371 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:31:42,371 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:31:42,378 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:42,389 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:42,389 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:31:42,409 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:31:42,412 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:31:42,413 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:31:42,417 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:42,421 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:42,421 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:31:42,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:31:42,539 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:31:42,553 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:31:42,553 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:31:42,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:31:42,554 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:31:42,554 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:31:42,554 INFO L87 Difference]: Start difference. First operand 497 states and 556 transitions. Second operand 9 states. [2018-09-21 18:31:48,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:31:48,750 INFO L93 Difference]: Finished difference Result 502 states and 560 transitions. [2018-09-21 18:31:48,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:31:48,752 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2018-09-21 18:31:48,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:31:48,755 INFO L225 Difference]: With dead ends: 502 [2018-09-21 18:31:48,755 INFO L226 Difference]: Without dead ends: 444 [2018-09-21 18:31:48,755 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:31:48,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2018-09-21 18:31:48,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 442. [2018-09-21 18:31:48,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2018-09-21 18:31:48,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 477 transitions. [2018-09-21 18:31:48,765 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 477 transitions. Word has length 67 [2018-09-21 18:31:48,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:31:48,765 INFO L480 AbstractCegarLoop]: Abstraction has 442 states and 477 transitions. [2018-09-21 18:31:48,765 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:31:48,767 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 477 transitions. [2018-09-21 18:31:48,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-09-21 18:31:48,768 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:31:48,769 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] [2018-09-21 18:31:48,769 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:31:48,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1207892103, now seen corresponding path program 1 times [2018-09-21 18:31:48,771 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:31:48,771 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-09-21 18:31:48,783 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:31:48,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:31:48,943 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:31:48,970 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:31:48,977 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:31:48,977 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:31:48,981 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:48,991 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:48,991 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:31:49,012 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:31:49,015 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:31:49,016 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:31:49,022 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:49,026 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:31:49,026 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:31:49,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:31:49,109 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:31:49,121 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:31:49,121 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 18:31:49,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 18:31:49,122 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 18:31:49,122 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:31:49,122 INFO L87 Difference]: Start difference. First operand 442 states and 477 transitions. Second operand 8 states. [2018-09-21 18:31:52,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:31:52,636 INFO L93 Difference]: Finished difference Result 618 states and 658 transitions. [2018-09-21 18:31:52,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-21 18:31:52,639 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 69 [2018-09-21 18:31:52,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:31:52,642 INFO L225 Difference]: With dead ends: 618 [2018-09-21 18:31:52,643 INFO L226 Difference]: Without dead ends: 614 [2018-09-21 18:31:52,643 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:31:52,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2018-09-21 18:31:52,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 442. [2018-09-21 18:31:52,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2018-09-21 18:31:52,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 475 transitions. [2018-09-21 18:31:52,656 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 475 transitions. Word has length 69 [2018-09-21 18:31:52,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:31:52,656 INFO L480 AbstractCegarLoop]: Abstraction has 442 states and 475 transitions. [2018-09-21 18:31:52,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 18:31:52,656 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 475 transitions. [2018-09-21 18:31:52,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-09-21 18:31:52,659 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:31:52,659 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] [2018-09-21 18:31:52,659 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:31:52,659 INFO L82 PathProgramCache]: Analyzing trace with hash -2017238729, now seen corresponding path program 1 times [2018-09-21 18:31:52,660 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:31:52,660 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-09-21 18:31:52,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:31:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:31:52,852 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:31:52,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:31:52,947 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:31:52,959 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:31:52,959 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-21 18:31:52,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-21 18:31:52,960 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-21 18:31:52,960 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-21 18:31:52,960 INFO L87 Difference]: Start difference. First operand 442 states and 475 transitions. Second operand 7 states. [2018-09-21 18:32:02,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:32:02,292 INFO L93 Difference]: Finished difference Result 448 states and 481 transitions. [2018-09-21 18:32:02,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-21 18:32:02,294 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2018-09-21 18:32:02,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:32:02,297 INFO L225 Difference]: With dead ends: 448 [2018-09-21 18:32:02,297 INFO L226 Difference]: Without dead ends: 448 [2018-09-21 18:32:02,297 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:32:02,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2018-09-21 18:32:02,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 446. [2018-09-21 18:32:02,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2018-09-21 18:32:02,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 479 transitions. [2018-09-21 18:32:02,308 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 479 transitions. Word has length 69 [2018-09-21 18:32:02,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:32:02,309 INFO L480 AbstractCegarLoop]: Abstraction has 446 states and 479 transitions. [2018-09-21 18:32:02,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-21 18:32:02,309 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 479 transitions. [2018-09-21 18:32:02,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-09-21 18:32:02,312 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:32:02,312 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] [2018-09-21 18:32:02,312 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:32:02,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1080017025, now seen corresponding path program 1 times [2018-09-21 18:32:02,313 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:32:02,313 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2018-09-21 18:32:02,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:32:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:32:02,491 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:32:02,517 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:32:02,522 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:32:02,522 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:32:02,527 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:02,541 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:02,542 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:32:02,562 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:32:02,579 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:32:02,580 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:32:02,594 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:02,596 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:02,596 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:32:02,632 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 13 treesize of output 10 [2018-09-21 18:32:02,637 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-09-21 18:32:02,637 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:32:02,642 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:02,653 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:32:02,654 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2018-09-21 18:32:02,708 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2018-09-21 18:32:02,725 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-09-21 18:32:02,725 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:32:02,737 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:02,747 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:32:02,747 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:40, output treesize:25 [2018-09-21 18:32:03,077 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:32:03,081 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:32:03,082 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:32:03,087 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:03,098 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:03,098 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:32:03,171 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:32:03,174 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:32:03,175 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:32:03,178 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:03,181 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:03,181 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:32:03,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:32:03,778 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:32:03,790 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:32:03,790 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-09-21 18:32:03,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-09-21 18:32:03,791 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-09-21 18:32:03,791 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=341, Unknown=0, NotChecked=0, Total=380 [2018-09-21 18:32:03,791 INFO L87 Difference]: Start difference. First operand 446 states and 479 transitions. Second operand 20 states. [2018-09-21 18:32:07,658 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2018-09-21 18:32:15,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:32:15,594 INFO L93 Difference]: Finished difference Result 804 states and 867 transitions. [2018-09-21 18:32:15,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-09-21 18:32:15,595 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 69 [2018-09-21 18:32:15,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:32:15,597 INFO L225 Difference]: With dead ends: 804 [2018-09-21 18:32:15,598 INFO L226 Difference]: Without dead ends: 577 [2018-09-21 18:32:15,599 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=180, Invalid=1460, Unknown=0, NotChecked=0, Total=1640 [2018-09-21 18:32:15,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2018-09-21 18:32:15,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 459. [2018-09-21 18:32:15,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2018-09-21 18:32:15,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 496 transitions. [2018-09-21 18:32:15,613 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 496 transitions. Word has length 69 [2018-09-21 18:32:15,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:32:15,613 INFO L480 AbstractCegarLoop]: Abstraction has 459 states and 496 transitions. [2018-09-21 18:32:15,613 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-09-21 18:32:15,614 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 496 transitions. [2018-09-21 18:32:15,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-09-21 18:32:15,614 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:32:15,616 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] [2018-09-21 18:32:15,617 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:32:15,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1523430744, now seen corresponding path program 1 times [2018-09-21 18:32:15,618 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:32:15,619 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2018-09-21 18:32:15,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:32:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:32:15,791 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:32:15,808 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:32:15,811 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:32:15,812 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:32:15,817 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:15,829 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:15,830 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:32:15,846 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:32:15,850 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:32:15,850 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:32:15,860 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:15,863 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:15,864 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:32:15,902 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-09-21 18:32:15,906 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-09-21 18:32:15,907 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:32:15,911 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:15,923 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:32:15,924 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2018-09-21 18:32:15,967 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2018-09-21 18:32:15,999 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-09-21 18:32:16,000 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:32:16,004 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:16,015 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:32:16,015 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:40, output treesize:25 [2018-09-21 18:32:16,441 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:32:16,445 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:32:16,446 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:32:16,450 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:16,461 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:16,461 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:32:16,531 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:32:16,534 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:32:16,534 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:32:16,537 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:16,539 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:16,540 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:32:17,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:32:17,004 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:32:17,021 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:32:17,021 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2018-09-21 18:32:17,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-09-21 18:32:17,022 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-09-21 18:32:17,022 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2018-09-21 18:32:17,023 INFO L87 Difference]: Start difference. First operand 459 states and 496 transitions. Second operand 19 states. [2018-09-21 18:32:26,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:32:26,661 INFO L93 Difference]: Finished difference Result 779 states and 840 transitions. [2018-09-21 18:32:26,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-21 18:32:26,663 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 70 [2018-09-21 18:32:26,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:32:26,665 INFO L225 Difference]: With dead ends: 779 [2018-09-21 18:32:26,665 INFO L226 Difference]: Without dead ends: 552 [2018-09-21 18:32:26,666 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=165, Invalid=1317, Unknown=0, NotChecked=0, Total=1482 [2018-09-21 18:32:26,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2018-09-21 18:32:26,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 434. [2018-09-21 18:32:26,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-09-21 18:32:26,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 465 transitions. [2018-09-21 18:32:26,687 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 465 transitions. Word has length 70 [2018-09-21 18:32:26,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:32:26,688 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 465 transitions. [2018-09-21 18:32:26,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-09-21 18:32:26,688 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 465 transitions. [2018-09-21 18:32:26,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-09-21 18:32:26,690 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:32:26,690 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:32:26,691 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:32:26,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1904526599, now seen corresponding path program 1 times [2018-09-21 18:32:26,693 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:32:26,693 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2018-09-21 18:32:26,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:32:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:32:26,874 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:32:26,988 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:32:26,992 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:32:26,992 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:32:26,996 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:27,007 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:27,007 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:32:27,037 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:32:27,071 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:32:27,072 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:32:27,098 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:27,122 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:27,122 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:32:27,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:32:27,400 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:32:27,412 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:32:27,413 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-21 18:32:27,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-21 18:32:27,413 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-21 18:32:27,414 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:32:27,414 INFO L87 Difference]: Start difference. First operand 434 states and 465 transitions. Second operand 14 states. [2018-09-21 18:32:38,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:32:38,616 INFO L93 Difference]: Finished difference Result 439 states and 470 transitions. [2018-09-21 18:32:38,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-21 18:32:38,618 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 85 [2018-09-21 18:32:38,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:32:38,621 INFO L225 Difference]: With dead ends: 439 [2018-09-21 18:32:38,621 INFO L226 Difference]: Without dead ends: 428 [2018-09-21 18:32:38,622 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2018-09-21 18:32:38,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2018-09-21 18:32:38,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 425. [2018-09-21 18:32:38,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2018-09-21 18:32:38,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 455 transitions. [2018-09-21 18:32:38,634 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 455 transitions. Word has length 85 [2018-09-21 18:32:38,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:32:38,634 INFO L480 AbstractCegarLoop]: Abstraction has 425 states and 455 transitions. [2018-09-21 18:32:38,634 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-21 18:32:38,634 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 455 transitions. [2018-09-21 18:32:38,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-09-21 18:32:38,638 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:32:38,639 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:32:38,639 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:32:38,639 INFO L82 PathProgramCache]: Analyzing trace with hash 254123617, now seen corresponding path program 1 times [2018-09-21 18:32:38,640 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:32:38,640 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2018-09-21 18:32:38,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:32:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:32:39,733 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:32:39,781 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:32:39,794 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:32:39,795 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:32:39,807 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:39,821 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:39,822 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:32:39,839 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:32:39,847 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:32:39,848 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:32:39,850 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:39,853 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:32:39,853 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:32:40,132 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-09-21 18:32:40,132 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:32:40,166 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:32:40,166 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:32:40,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:32:40,167 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:32:40,167 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:32:40,170 INFO L87 Difference]: Start difference. First operand 425 states and 455 transitions. Second operand 9 states. [2018-09-21 18:32:40,651 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-09-21 18:32:44,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:32:44,085 INFO L93 Difference]: Finished difference Result 405 states and 434 transitions. [2018-09-21 18:32:44,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:32:44,087 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 156 [2018-09-21 18:32:44,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:32:44,087 INFO L225 Difference]: With dead ends: 405 [2018-09-21 18:32:44,088 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:32:44,088 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:32:44,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:32:44,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:32:44,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:32:44,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:32:44,089 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 156 [2018-09-21 18:32:44,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:32:44,089 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:32:44,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:32:44,089 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:32:44,090 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:32:44,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:32:44 BoogieIcfgContainer [2018-09-21 18:32:44,095 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:32:44,096 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:32:44,096 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:32:44,096 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:32:44,097 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:29:59" (3/4) ... [2018-09-21 18:32:44,100 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:32:44,108 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:32:44,108 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-09-21 18:32:44,108 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure copysign_float [2018-09-21 18:32:44,108 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_powf [2018-09-21 18:32:44,109 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure scalbn_float [2018-09-21 18:32:44,109 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:32:44,109 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fmod_float [2018-09-21 18:32:44,109 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-09-21 18:32:44,109 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-09-21 18:32:44,129 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 109 nodes and edges [2018-09-21 18:32:44,131 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2018-09-21 18:32:44,133 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-09-21 18:32:44,135 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:32:44,283 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:32:44,284 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:32:44,284 INFO L168 Benchmark]: Toolchain (without parser) took 192997.29 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 259.0 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -185.7 MB). Peak memory consumption was 73.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:32:44,285 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. [2018-09-21 18:32:44,287 INFO L168 Benchmark]: CACSL2BoogieTranslator took 789.75 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 918.6 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:32:44,287 INFO L168 Benchmark]: Boogie Preprocessor took 277.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 918.6 MB in the beginning and 1.1 GB in the end (delta: -216.5 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:32:44,287 INFO L168 Benchmark]: RCFGBuilder took 27614.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 996.7 MB in the end (delta: 138.4 MB). Peak memory consumption was 138.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:32:44,289 INFO L168 Benchmark]: TraceAbstraction took 164120.08 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 108.0 MB). Free memory was 996.7 MB in the beginning and 1.2 GB in the end (delta: -166.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:32:44,289 INFO L168 Benchmark]: Witness Printer took 187.83 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:32:44,292 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 789.75 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 918.6 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 277.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 918.6 MB in the beginning and 1.1 GB in the end (delta: -216.5 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 27614.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 996.7 MB in the end (delta: 138.4 MB). Peak memory consumption was 138.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 164120.08 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 108.0 MB). Free memory was 996.7 MB in the beginning and 1.2 GB in the end (delta: -166.7 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 187.83 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 615]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 574 locations, 1 error locations. SAFE Result, 164.0s OverallTime, 13 OverallIterations, 2 TraceHistogramMax, 150.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7529 SDtfs, 8717 SDslu, 71325 SDs, 0 SdLazy, 8371 SolverSat, 187 SolverUnsat, 24 SolverUnknown, 0 SolverNotchecked, 128.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1070 GetRequests, 781 SyntacticMatches, 0 SemanticMatches, 289 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1168 ImplicationChecksByTransitivity, 19.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=509occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 782 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 934 NumberOfCodeBlocks, 934 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 921 ConstructedInterpolants, 189 QuantifiedInterpolants, 657083 SizeOfPredicates, 154 NumberOfNonLiveVariables, 3206 ConjunctsInSsa, 180 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 24/24 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...