java -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/TreeAutomizer.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/TreeAutomizer/TreeAutomizerHopcroftMinimization.epf -i /storage/chc-comp/vmt-chc-benchmarks/conc/fib_bench_safe_v3.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-55b8104 [2018-06-18 19:11:10,669 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-18 19:11:10,671 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-18 19:11:10,682 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-18 19:11:10,682 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-18 19:11:10,683 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-18 19:11:10,685 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-18 19:11:10,687 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-18 19:11:10,688 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-18 19:11:10,689 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-18 19:11:10,690 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-18 19:11:10,690 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-18 19:11:10,691 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-18 19:11:10,692 INFO L177 SettingsManager]: ChcToBoogie provides no preferences, ignoring... [2018-06-18 19:11:10,693 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-18 19:11:10,694 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-18 19:11:10,695 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-18 19:11:10,697 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-18 19:11:10,698 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-18 19:11:10,699 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-18 19:11:10,701 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-18 19:11:10,703 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-18 19:11:10,703 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-18 19:11:10,704 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-18 19:11:10,704 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-18 19:11:10,705 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-18 19:11:10,706 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-18 19:11:10,707 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-18 19:11:10,708 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-18 19:11:10,708 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-18 19:11:10,709 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-18 19:11:10,710 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-18 19:11:10,710 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-18 19:11:10,711 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-18 19:11:10,712 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-18 19:11:10,712 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/TreeAutomizer/TreeAutomizerHopcroftMinimization.epf [2018-06-18 19:11:10,720 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-18 19:11:10,720 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-18 19:11:10,722 INFO L131 SettingsManager]: Preferences of TreeAutomizer differ from their defaults: [2018-06-18 19:11:10,722 INFO L133 SettingsManager]: * Type of minimization to use=HOPCROFT [2018-06-18 19:11:10,723 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-06-18 19:11:10,724 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-18 19:11:10,724 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-18 19:11:10,764 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-06-18 19:11:10,786 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-18 19:11:10,792 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-06-18 19:11:10,794 INFO L271 PluginConnector]: Initializing SmtParser... [2018-06-18 19:11:10,794 INFO L276 PluginConnector]: SmtParser initialized [2018-06-18 19:11:10,795 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/conc/fib_bench_safe_v3.smt2 [2018-06-18 19:11:10,797 INFO L200 SmtParser]: Parsing .smt2 file as a set of Horn Clauses [2018-06-18 19:11:10,932 INFO L224 SmtParser]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/conc/fib_bench_safe_v3.smt2 unknown [2018-06-18 19:11:11,124 INFO L238 SmtParser]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/conc/fib_bench_safe_v3.smt2 [2018-06-18 19:11:11,132 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-06-18 19:11:11,142 INFO L131 ToolchainWalker]: Walking toolchain with 1 elements. [2018-06-18 19:11:11,143 INFO L113 PluginConnector]: ------------------------TreeAutomizer---------------------------- [2018-06-18 19:11:11,143 INFO L271 PluginConnector]: Initializing TreeAutomizer... [2018-06-18 19:11:11,147 INFO L276 PluginConnector]: TreeAutomizer initialized [2018-06-18 19:11:11,149 INFO L185 PluginConnector]: Executing the observer TreeAutomizerObserver from plugin TreeAutomizer for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 07:11:11" (1/1) ... [2018-06-18 19:11:11,235 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 19:11:11,499 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 19:11:11,828 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 19:11:12,450 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 19:11:13,311 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 19:11:14,679 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 19:11:14,983 WARN L168 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 48 [2018-06-18 19:11:15,291 WARN L168 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 57 [2018-06-18 19:11:15,504 WARN L168 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 39 [2018-06-18 19:11:15,699 WARN L168 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 33 [2018-06-18 19:11:17,511 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 19:11:17,980 WARN L168 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 55 [2018-06-18 19:11:18,394 WARN L168 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 49 [2018-06-18 19:11:18,633 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-06-18 19:11:18,984 WARN L168 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 55 [2018-06-18 19:11:19,449 WARN L168 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 41 [2018-06-18 19:11:19,760 WARN L168 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 39 [2018-06-18 19:11:22,711 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 19:11:23,322 WARN L168 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 61 [2018-06-18 19:11:23,683 WARN L168 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 65 [2018-06-18 19:11:24,105 WARN L168 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 62 [2018-06-18 19:11:24,487 WARN L168 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 72 [2018-06-18 19:11:24,696 WARN L168 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 45 [2018-06-18 19:11:28,183 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 19:11:29,337 WARN L168 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 6 [2018-06-18 19:11:33,661 WARN L168 SmtUtils]: Spent 4.16 s on a formula simplification. DAG size of input: 261 DAG size of output: 115 [2018-06-18 19:11:38,095 WARN L168 SmtUtils]: Spent 4.14 s on a formula simplification. DAG size of input: 344 DAG size of output: 80 [2018-06-18 19:11:39,082 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-06-18 19:11:39,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-06-18 19:11:39,990 WARN L168 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 348 DAG size of output: 83 [2018-06-18 19:11:40,372 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-06-18 19:11:40,379 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-06-18 19:11:41,020 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-06-18 19:11:41,243 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-06-18 19:11:41,781 WARN L168 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 398 DAG size of output: 79 [2018-06-18 19:11:42,462 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-06-18 19:11:43,380 WARN L168 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 351 DAG size of output: 81 [2018-06-18 19:11:44,794 WARN L168 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 300 DAG size of output: 59 [2018-06-18 19:11:49,253 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 19:11:50,863 WARN L168 SmtUtils]: Spent 825.00 ms on a formula simplification. DAG size of input: 400 DAG size of output: 63 [2018-06-18 19:11:51,423 WARN L168 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 78 [2018-06-18 19:11:52,932 WARN L168 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 420 DAG size of output: 104 [2018-06-18 19:11:53,135 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-06-18 19:11:53,856 WARN L168 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 393 DAG size of output: 99 [2018-06-18 19:11:54,308 WARN L168 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 90 [2018-06-18 19:11:54,792 WARN L168 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 77 [2018-06-18 19:11:55,102 WARN L168 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 53 [2018-06-18 19:12:02,192 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. Received shutdown request... [2018-06-18 19:12:02,933 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Timeout exceeded at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$IntegerInterpolator.interpolate(Interpolator.java:1426) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$MixedLAInterpolator.convert(Interpolator.java:1282) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:125) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:121) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:73) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:239) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.mixedPivotLA(Interpolator.java:1472) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.combine(Interpolator.java:357) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.access$2(Interpolator.java:326) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$CombineInterpolants.walk(Interpolator.java:153) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:220) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:918) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.graph.TreeAutomizerCEGAR.retrieveInterpolantsMap(TreeAutomizerCEGAR.java:402) at de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.graph.TreeAutomizerCEGAR.iterate(TreeAutomizerCEGAR.java:201) at de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.TreeAutomizerObserver.process(TreeAutomizerObserver.java:97) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) 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$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-06-18 19:12:02,944 INFO L168 Benchmark]: Toolchain (without parser) took 51811.28 ms. Allocated memory was 303.0 MB in the beginning and 1.2 GB in the end (delta: 946.3 MB). Free memory was 262.5 MB in the beginning and 1.1 GB in the end (delta: -806.8 MB). Peak memory consumption was 986.0 MB. Max. memory is 3.6 GB. [2018-06-18 19:12:02,945 INFO L168 Benchmark]: SmtParser took 0.18 ms. Allocated memory is still 303.0 MB. Free memory is still 270.4 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-18 19:12:02,948 INFO L168 Benchmark]: TreeAutomizer took 51800.34 ms. Allocated memory was 303.0 MB in the beginning and 1.2 GB in the end (delta: 946.3 MB). Free memory was 261.5 MB in the beginning and 1.1 GB in the end (delta: -807.8 MB). Peak memory consumption was 985.0 MB. Max. memory is 3.6 GB. [2018-06-18 19:12:02,951 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.18 ms. Allocated memory is still 303.0 MB. Free memory is still 270.4 MB. There was no memory consumed. Max. memory is 3.6 GB. * TreeAutomizer took 51800.34 ms. Allocated memory was 303.0 MB in the beginning and 1.2 GB in the end (delta: 946.3 MB). Free memory was 261.5 MB in the beginning and 1.1 GB in the end (delta: -807.8 MB). Peak memory consumption was 985.0 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer: - ExceptionOrErrorResult: SMTLIBException: Timeout exceeded de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer: SMTLIBException: Timeout exceeded: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$IntegerInterpolator.interpolate(Interpolator.java:1426) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/fib_bench_safe_v3.smt2_TreeAutomizerHopcroftMinimization.epf_TreeAutomizer.xml/Csv-Benchmark-0-2018-06-18_19-12-02-965.csv Completed graceful shutdown