./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/aaron3-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/aaron3-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ea9406930e45e60de12baf697b969fb5af8dbe89b8e2edfb7dfc533c91e7fcaa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:13:22,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:13:22,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:13:22,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:13:22,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:13:22,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:13:22,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:13:22,428 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:13:22,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:13:22,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:13:22,434 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:13:22,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:13:22,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:13:22,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:13:22,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:13:22,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:13:22,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:13:22,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:13:22,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:13:22,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:13:22,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:13:22,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:13:22,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:13:22,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:13:22,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:13:22,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:13:22,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:13:22,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:13:22,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:13:22,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:13:22,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:13:22,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:13:22,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:13:22,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:13:22,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:13:22,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:13:22,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:13:22,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:13:22,488 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:13:22,490 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:13:22,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:13:22,495 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-21 19:13:22,558 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:13:22,558 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:13:22,559 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:13:22,560 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:13:22,562 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:13:22,562 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:13:22,563 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:13:22,563 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:13:22,563 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:13:22,563 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:13:22,565 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:13:22,565 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:13:22,565 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:13:22,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:13:22,566 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:13:22,566 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:13:22,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:13:22,567 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:13:22,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:13:22,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:13:22,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:13:22,568 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:13:22,568 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:13:22,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:13:22,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:13:22,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:13:22,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:13:22,569 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:13:22,570 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:13:22,571 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:13:22,572 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea9406930e45e60de12baf697b969fb5af8dbe89b8e2edfb7dfc533c91e7fcaa [2021-10-21 19:13:22,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:13:23,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:13:23,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:13:23,030 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:13:23,031 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:13:23,032 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-crafted/aaron3-1.c [2021-10-21 19:13:23,118 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/data/2b20b75a5/36e003eb7cea48ca996287a8b3b1126f/FLAGcfca299e2 [2021-10-21 19:13:23,788 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:13:23,788 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/sv-benchmarks/c/termination-crafted/aaron3-1.c [2021-10-21 19:13:23,801 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/data/2b20b75a5/36e003eb7cea48ca996287a8b3b1126f/FLAGcfca299e2 [2021-10-21 19:13:24,163 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/data/2b20b75a5/36e003eb7cea48ca996287a8b3b1126f [2021-10-21 19:13:24,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:13:24,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:13:24,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:13:24,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:13:24,178 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:13:24,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:13:24" (1/1) ... [2021-10-21 19:13:24,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23f3aff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:13:24, skipping insertion in model container [2021-10-21 19:13:24,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:13:24" (1/1) ... [2021-10-21 19:13:24,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:13:24,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:13:24,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:13:24,419 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:13:24,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:13:24,447 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:13:24,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:13:24 WrapperNode [2021-10-21 19:13:24,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:13:24,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:13:24,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:13:24,450 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:13:24,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:13:24" (1/1) ... [2021-10-21 19:13:24,465 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:13:24" (1/1) ... [2021-10-21 19:13:24,486 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:13:24,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:13:24,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:13:24,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:13:24,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:13:24" (1/1) ... [2021-10-21 19:13:24,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:13:24" (1/1) ... [2021-10-21 19:13:24,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:13:24" (1/1) ... [2021-10-21 19:13:24,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:13:24" (1/1) ... [2021-10-21 19:13:24,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:13:24" (1/1) ... [2021-10-21 19:13:24,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:13:24" (1/1) ... [2021-10-21 19:13:24,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:13:24" (1/1) ... [2021-10-21 19:13:24,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:13:24,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:13:24,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:13:24,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:13:24,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:13:24" (1/1) ... [2021-10-21 19:13:24,521 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:24,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:24,552 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:24,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:13:24,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:13:24,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:13:24,884 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:13:24,885 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-21 19:13:24,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:13:24 BoogieIcfgContainer [2021-10-21 19:13:24,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:13:24,902 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:13:24,902 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:13:24,906 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:13:24,907 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:13:24,907 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:13:24" (1/3) ... [2021-10-21 19:13:24,909 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4fc2f822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:13:24, skipping insertion in model container [2021-10-21 19:13:24,909 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:13:24,910 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:13:24" (2/3) ... [2021-10-21 19:13:24,910 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4fc2f822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:13:24, skipping insertion in model container [2021-10-21 19:13:24,910 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:13:24,910 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:13:24" (3/3) ... [2021-10-21 19:13:24,912 INFO L389 chiAutomizerObserver]: Analyzing ICFG aaron3-1.c [2021-10-21 19:13:25,021 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:13:25,038 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:13:25,038 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:13:25,039 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:13:25,039 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:13:25,039 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:13:25,039 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:13:25,039 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:13:25,073 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:13:25,096 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:13:25,096 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:13:25,096 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:13:25,103 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-21 19:13:25,104 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:13:25,104 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:13:25,104 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:13:25,107 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:13:25,107 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:13:25,108 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:13:25,108 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-21 19:13:25,108 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:13:25,116 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 4#L22true assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 9#L23true assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 12#L24true assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 8#L25true assume !!(main_~y~0 <= 1073741823); 13#L27-2true [2021-10-21 19:13:25,117 INFO L793 eck$LassoCheckResult]: Loop: 13#L27-2true assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 6#L27true assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := 1 + main_~y~0; 13#L27-2true [2021-10-21 19:13:25,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:25,124 INFO L82 PathProgramCache]: Analyzing trace with hash 29742506, now seen corresponding path program 1 times [2021-10-21 19:13:25,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:25,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986613635] [2021-10-21 19:13:25,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:25,137 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:25,310 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:13:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:25,365 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:13:25,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:25,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1931, now seen corresponding path program 1 times [2021-10-21 19:13:25,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:25,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846111419] [2021-10-21 19:13:25,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:25,372 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:25,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:25,398 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:13:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:25,420 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:13:25,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:25,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221836, now seen corresponding path program 1 times [2021-10-21 19:13:25,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:25,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298381071] [2021-10-21 19:13:25,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:25,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:25,450 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:13:25,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:25,474 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:13:25,567 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:13:25,568 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:13:25,568 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:13:25,568 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:13:25,568 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:13:25,569 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:25,569 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:13:25,569 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:13:25,569 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration1_Loop [2021-10-21 19:13:25,569 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:13:25,570 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:13:25,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:25,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:25,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:25,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:25,747 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:13:25,748 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:13:25,760 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:25,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:25,766 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:25,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:13:25,791 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:13:25,791 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:13:25,836 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:13:25,837 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:13:25,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:25,880 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:25,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:25,883 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:25,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:13:25,892 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:13:25,893 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:13:25,917 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:13:25,917 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:13:25,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:25,946 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:25,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:25,948 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:25,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:13:25,950 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:13:25,951 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:13:26,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:26,026 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:26,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:26,027 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:26,039 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:13:26,040 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:13:26,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:13:26,333 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:13:26,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-21 19:13:26,339 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:13:26,340 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:13:26,340 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:13:26,340 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:13:26,340 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:13:26,340 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:26,341 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:13:26,341 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:13:26,341 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration1_Loop [2021-10-21 19:13:26,341 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:13:26,341 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:13:26,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:26,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:26,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:26,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:26,443 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:13:26,449 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:13:26,451 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:26,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:26,452 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:26,464 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:13:26,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:26,476 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:26,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:26,476 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:26,483 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:26,483 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:26,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 19:13:26,507 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:26,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:26,550 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:26,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:26,552 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:26,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 19:13:26,558 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:13:26,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:26,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:26,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:26,570 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:26,575 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:26,575 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:26,588 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:26,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:26,635 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:26,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:26,637 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:26,648 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:13:26,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:26,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:26,660 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:26,660 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:26,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:26,664 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:13:26,664 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:26,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 19:13:26,674 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:13:26,695 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 19:13:26,696 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 19:13:26,698 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:26,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:26,700 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:26,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 19:13:26,706 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:13:26,707 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:13:26,707 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:13:26,707 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~x~0 - 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2021-10-21 19:13:26,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:26,758 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:13:26,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:26,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:26,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:13:26,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:13:26,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:26,862 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:13:26,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:13:26,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:26,907 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:13:26,908 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:13:26,962 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 42 transitions. Complement of second has 8 states. [2021-10-21 19:13:26,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 19:13:26,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:13:26,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2021-10-21 19:13:26,967 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-21 19:13:26,969 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:13:26,969 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-21 19:13:26,969 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:13:26,969 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-21 19:13:26,970 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:13:26,971 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 42 transitions. [2021-10-21 19:13:26,975 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:13:26,979 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 12 states and 15 transitions. [2021-10-21 19:13:26,980 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-10-21 19:13:26,980 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-21 19:13:26,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2021-10-21 19:13:26,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:13:26,981 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-10-21 19:13:26,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2021-10-21 19:13:27,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-21 19:13:27,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:13:27,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2021-10-21 19:13:27,010 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-10-21 19:13:27,010 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-10-21 19:13:27,010 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:13:27,010 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2021-10-21 19:13:27,011 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:13:27,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:13:27,011 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:13:27,012 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:27,012 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:13:27,012 INFO L791 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 92#L22 assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 93#L23 assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 101#L24 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 99#L25 assume !!(main_~y~0 <= 1073741823); 100#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 95#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 96#L31 [2021-10-21 19:13:27,012 INFO L793 eck$LassoCheckResult]: Loop: 96#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 102#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 103#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 96#L31 [2021-10-21 19:13:27,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:27,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221843, now seen corresponding path program 1 times [2021-10-21 19:13:27,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:27,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525534920] [2021-10-21 19:13:27,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:27,014 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:27,025 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:13:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:27,035 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:13:27,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:27,036 INFO L82 PathProgramCache]: Analyzing trace with hash 67272, now seen corresponding path program 1 times [2021-10-21 19:13:27,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:27,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577858605] [2021-10-21 19:13:27,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:27,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:27,043 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:13:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:27,050 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:13:27,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:27,050 INFO L82 PathProgramCache]: Analyzing trace with hash -312117156, now seen corresponding path program 1 times [2021-10-21 19:13:27,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:27,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701824317] [2021-10-21 19:13:27,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:27,051 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:27,065 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:13:27,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:27,085 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:13:27,161 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:13:27,161 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:13:27,161 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:13:27,161 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:13:27,162 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:13:27,162 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:27,162 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:13:27,162 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:13:27,162 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration2_Loop [2021-10-21 19:13:27,162 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:13:27,162 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:13:27,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:27,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:27,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:27,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:27,275 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:13:27,275 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:13:27,275 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:27,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:27,276 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:27,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 19:13:27,283 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:13:27,283 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:13:27,300 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:13:27,300 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:13:27,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:27,326 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:27,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:27,327 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:27,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 19:13:27,331 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:13:27,332 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:13:27,347 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:13:27,347 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=4} Honda state: {ULTIMATE.start_main_#t~nondet4=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:13:27,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:27,369 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:27,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:27,370 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:27,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 19:13:27,399 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:13:27,399 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:13:27,416 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:13:27,416 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:13:27,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-10-21 19:13:27,441 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:27,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:27,442 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:27,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 19:13:27,443 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:13:27,444 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:13:27,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:27,494 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:27,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:27,495 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:27,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:27,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 19:13:27,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:13:27,540 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:13:27,613 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:13:27,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:27,620 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:13:27,620 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:13:27,620 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:13:27,620 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:13:27,621 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:13:27,621 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:27,621 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:13:27,621 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:13:27,621 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration2_Loop [2021-10-21 19:13:27,621 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:13:27,621 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:13:27,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:27,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:27,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:27,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:27,759 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:13:27,759 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:13:27,759 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:27,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:27,763 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:27,773 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:13:27,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:27,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:27,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:27,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:27,788 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:27,791 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:27,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 19:13:27,806 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:27,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:27,847 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:27,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:27,851 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:27,855 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:13:27,866 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:27,866 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:27,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:27,867 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-21 19:13:27,867 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:27,869 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:13:27,869 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:27,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 19:13:27,886 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:27,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:27,926 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:27,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:27,927 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:27,935 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:13:27,956 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:27,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:27,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:27,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:27,961 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:27,961 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:27,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 19:13:27,978 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:28,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:28,029 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:28,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:28,031 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:28,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-21 19:13:28,041 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:13:28,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:28,056 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:28,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:28,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:28,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:28,070 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:13:28,071 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:28,080 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:28,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:28,123 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-21 19:13:28,123 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:28,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:28,124 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:28,133 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:13:28,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:28,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:28,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:28,144 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:13:28,150 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-21 19:13:28,150 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-21 19:13:28,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-21 19:13:28,166 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:28,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:28,210 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:28,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:28,214 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:28,226 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:13:28,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-21 19:13:28,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:28,237 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:28,237 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:28,237 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-21 19:13:28,238 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:13:28,239 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:28,240 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:28,257 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:28,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:28,296 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:28,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:28,297 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:28,303 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:13:28,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:28,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:28,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:28,314 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:13:28,318 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-21 19:13:28,318 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-21 19:13:28,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-21 19:13:28,336 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:28,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:28,382 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:28,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:28,383 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:28,386 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:13:28,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:28,410 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:28,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:28,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:28,411 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:13:28,415 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 19:13:28,415 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:28,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-21 19:13:28,427 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:13:28,450 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-10-21 19:13:28,450 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-21 19:13:28,451 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:28,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:28,467 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:28,475 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:13:28,475 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:13:28,475 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:13:28,476 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 2*ULTIMATE.start_main_~z~0 f1 = 2*ULTIMATE.start_main_~tx~0 + 2*ULTIMATE.start_main_~z~0 + 2147483647 Supporting invariants [] [2021-10-21 19:13:28,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-21 19:13:28,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:28,517 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:13:28,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:28,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:13:28,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:13:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:28,603 WARN L261 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 19:13:28,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:13:28,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:28,939 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-21 19:13:28,939 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:13:29,100 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 22 transitions. Complement of second has 6 states. [2021-10-21 19:13:29,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 19:13:29,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:13:29,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2021-10-21 19:13:29,102 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-21 19:13:29,103 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:13:29,103 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 10 letters. Loop has 3 letters. [2021-10-21 19:13:29,103 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:13:29,103 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 7 letters. Loop has 6 letters. [2021-10-21 19:13:29,103 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:13:29,104 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 22 transitions. [2021-10-21 19:13:29,105 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:13:29,106 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 22 transitions. [2021-10-21 19:13:29,107 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-21 19:13:29,107 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-10-21 19:13:29,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2021-10-21 19:13:29,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:13:29,108 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2021-10-21 19:13:29,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2021-10-21 19:13:29,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2021-10-21 19:13:29,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:13:29,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2021-10-21 19:13:29,116 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-10-21 19:13:29,116 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-10-21 19:13:29,116 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:13:29,116 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2021-10-21 19:13:29,119 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:13:29,120 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:13:29,120 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:13:29,121 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:13:29,122 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:13:29,122 INFO L791 eck$LassoCheckResult]: Stem: 181#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 179#L22 assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 180#L23 assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 188#L24 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 186#L25 assume !!(main_~y~0 <= 1073741823); 187#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 192#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 189#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 183#L27-2 [2021-10-21 19:13:29,122 INFO L793 eck$LassoCheckResult]: Loop: 183#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 182#L27 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := 1 + main_~y~0; 183#L27-2 [2021-10-21 19:13:29,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:29,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1295763161, now seen corresponding path program 2 times [2021-10-21 19:13:29,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:29,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432142010] [2021-10-21 19:13:29,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:29,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:29,166 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:13:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:29,198 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:13:29,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:29,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:29,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1931, now seen corresponding path program 2 times [2021-10-21 19:13:29,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:29,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809130976] [2021-10-21 19:13:29,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:29,204 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:29,209 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:13:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:29,213 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:13:29,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:29,213 INFO L82 PathProgramCache]: Analyzing trace with hash -312117149, now seen corresponding path program 1 times [2021-10-21 19:13:29,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:29,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150556649] [2021-10-21 19:13:29,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:29,214 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:29,234 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:13:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:29,257 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:13:29,289 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:13:29,290 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:13:29,290 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:13:29,290 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:13:29,290 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:13:29,290 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:29,290 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:13:29,290 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:13:29,290 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration3_Loop [2021-10-21 19:13:29,291 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:13:29,291 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:13:29,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:29,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:29,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:29,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:29,384 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:13:29,384 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:13:29,384 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:29,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:29,385 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:29,392 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:13:29,392 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:13:29,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-21 19:13:29,427 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:13:29,427 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:13:29,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:29,471 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:29,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:29,472 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:29,476 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:13:29,476 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:13:29,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-21 19:13:29,497 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:13:29,497 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:13:29,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:29,541 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:29,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:29,542 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:29,546 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:13:29,546 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:13:29,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-21 19:13:29,578 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:13:29,579 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:13:29,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:29,619 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:29,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:29,620 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:29,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-21 19:13:29,623 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:13:29,624 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:13:29,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-10-21 19:13:29,675 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:29,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:29,677 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:29,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-21 19:13:29,680 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:13:29,680 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:13:29,944 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:13:29,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:29,948 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:13:29,948 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:13:29,948 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:13:29,948 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:13:29,948 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:13:29,948 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:29,948 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:13:29,948 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:13:29,948 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration3_Loop [2021-10-21 19:13:29,948 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:13:29,948 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:13:29,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:29,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:29,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:29,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:30,028 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:13:30,028 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:13:30,029 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:30,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:30,030 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:30,039 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:13:30,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-21 19:13:30,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:30,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:30,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:30,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:30,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:30,049 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:13:30,049 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:30,054 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:30,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:30,077 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:30,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:30,099 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:30,101 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:13:30,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:30,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:30,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:30,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:30,115 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:13:30,115 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:13:30,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-21 19:13:30,138 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:13:30,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:30,178 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:30,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:30,179 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:30,181 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:13:30,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:30,193 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:30,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:30,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:30,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:30,195 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:13:30,195 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:30,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-21 19:13:30,214 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:13:30,218 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 19:13:30,218 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 19:13:30,218 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:30,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:30,219 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:30,221 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:13:30,222 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:13:30,222 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:13:30,222 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2021-10-21 19:13:30,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-21 19:13:30,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-21 19:13:30,246 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:13:30,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:30,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:30,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:13:30,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:13:30,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:30,320 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:13:30,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:13:30,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:30,346 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:13:30,347 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:13:30,372 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 29 transitions. Complement of second has 5 states. [2021-10-21 19:13:30,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:13:30,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:13:30,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-10-21 19:13:30,374 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2021-10-21 19:13:30,374 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:13:30,375 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2021-10-21 19:13:30,375 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:13:30,375 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 4 letters. [2021-10-21 19:13:30,376 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:13:30,376 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 29 transitions. [2021-10-21 19:13:30,381 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:13:30,382 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 18 states and 23 transitions. [2021-10-21 19:13:30,383 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-21 19:13:30,383 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-21 19:13:30,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2021-10-21 19:13:30,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:13:30,383 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-10-21 19:13:30,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2021-10-21 19:13:30,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-21 19:13:30,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:13:30,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2021-10-21 19:13:30,393 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-10-21 19:13:30,394 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-10-21 19:13:30,394 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 19:13:30,394 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2021-10-21 19:13:30,398 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:13:30,398 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:13:30,399 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:13:30,399 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2021-10-21 19:13:30,400 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:13:30,400 INFO L791 eck$LassoCheckResult]: Stem: 269#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 267#L22 assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 268#L23 assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 276#L24 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 274#L25 assume !!(main_~y~0 <= 1073741823); 275#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 280#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 277#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 273#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 283#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 278#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 271#L27-2 [2021-10-21 19:13:30,400 INFO L793 eck$LassoCheckResult]: Loop: 271#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 270#L27 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := 1 + main_~y~0; 271#L27-2 [2021-10-21 19:13:30,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:30,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1085697206, now seen corresponding path program 3 times [2021-10-21 19:13:30,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:30,401 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990716266] [2021-10-21 19:13:30,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:30,402 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:30,429 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:13:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:30,456 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:13:30,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:30,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1931, now seen corresponding path program 3 times [2021-10-21 19:13:30,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:30,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910224955] [2021-10-21 19:13:30,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:30,460 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:30,465 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:13:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:30,474 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:13:30,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:30,475 INFO L82 PathProgramCache]: Analyzing trace with hash 322038932, now seen corresponding path program 2 times [2021-10-21 19:13:30,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:13:30,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384045298] [2021-10-21 19:13:30,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:13:30,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:13:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:30,502 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:13:30,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:13:30,524 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:13:30,554 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:13:30,554 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:13:30,555 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:13:30,555 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:13:30,555 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:13:30,555 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:30,555 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:13:30,555 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:13:30,555 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration4_Loop [2021-10-21 19:13:30,556 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:13:30,556 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:13:30,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:30,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:30,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:30,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:30,632 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:13:30,633 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:13:30,633 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:30,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:30,635 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:30,643 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:13:30,643 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:13:30,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-21 19:13:30,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:30,714 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:30,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:30,716 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:30,720 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:13:30,720 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:13:30,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-21 19:13:30,990 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:13:30,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:30,994 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:13:30,994 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:13:30,994 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:13:30,994 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:13:30,994 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:13:30,994 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:30,995 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:13:30,995 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:13:30,995 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration4_Loop [2021-10-21 19:13:30,995 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:13:30,995 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:13:30,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:31,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:31,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:31,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:13:31,083 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:13:31,084 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:13:31,084 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:31,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:31,087 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:31,095 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:13:31,106 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:13:31,106 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:13:31,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:13:31,106 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:13:31,106 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:13:31,108 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:13:31,108 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:13:31,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-21 19:13:31,118 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:13:31,131 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 19:13:31,131 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 19:13:31,132 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:13:31,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:13:31,134 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:13:31,137 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:13:31,137 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:13:31,137 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:13:31,137 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2021-10-21 19:13:31,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-21 19:13:31,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-10-21 19:13:31,162 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:13:31,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:31,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:13:31,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:13:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:31,245 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:13:31,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:13:31,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:31,267 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:13:31,268 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:13:31,286 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 25 transitions. Complement of second has 5 states. [2021-10-21 19:13:31,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:13:31,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:13:31,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-10-21 19:13:31,287 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 2 letters. [2021-10-21 19:13:31,287 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:13:31,287 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 19:13:31,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:31,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:31,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:13:31,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:13:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:31,376 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:13:31,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:13:31,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:31,396 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:13:31,396 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:13:31,408 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 25 transitions. Complement of second has 5 states. [2021-10-21 19:13:31,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:13:31,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:13:31,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-10-21 19:13:31,409 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 2 letters. [2021-10-21 19:13:31,409 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:13:31,409 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 19:13:31,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:13:31,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:31,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:13:31,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:13:31,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:31,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-21 19:13:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:13:31,559 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:13:31,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:13:31,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:13:31,580 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:13:31,580 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:13:31,594 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 23 states and 29 transitions. Complement of second has 4 states. [2021-10-21 19:13:31,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:13:31,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:13:31,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2021-10-21 19:13:31,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 11 letters. Loop has 2 letters. [2021-10-21 19:13:31,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:13:31,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 13 letters. Loop has 2 letters. [2021-10-21 19:13:31,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:13:31,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 11 letters. Loop has 4 letters. [2021-10-21 19:13:31,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:13:31,598 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 29 transitions. [2021-10-21 19:13:31,599 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:13:31,599 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2021-10-21 19:13:31,599 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 19:13:31,599 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 19:13:31,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 19:13:31,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:13:31,599 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:13:31,599 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:13:31,599 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:13:31,600 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-21 19:13:31,600 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:13:31,600 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:13:31,600 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 19:13:31,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:13:31 BoogieIcfgContainer [2021-10-21 19:13:31,607 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:13:31,608 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:13:31,608 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:13:31,608 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:13:31,608 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:13:24" (3/4) ... [2021-10-21 19:13:31,612 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:13:31,612 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:13:31,613 INFO L168 Benchmark]: Toolchain (without parser) took 7444.25 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 70.3 MB in the beginning and 94.9 MB in the end (delta: -24.6 MB). Peak memory consumption was 1.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:13:31,614 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 100.7 MB. Free memory is still 55.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:13:31,614 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.17 ms. Allocated memory is still 100.7 MB. Free memory was 70.0 MB in the beginning and 77.5 MB in the end (delta: -7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:13:31,615 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.20 ms. Allocated memory is still 100.7 MB. Free memory was 77.5 MB in the beginning and 76.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:13:31,615 INFO L168 Benchmark]: Boogie Preprocessor took 22.51 ms. Allocated memory is still 100.7 MB. Free memory was 76.3 MB in the beginning and 75.4 MB in the end (delta: 954.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:13:31,616 INFO L168 Benchmark]: RCFGBuilder took 390.01 ms. Allocated memory is still 100.7 MB. Free memory was 75.4 MB in the beginning and 66.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:13:31,617 INFO L168 Benchmark]: BuchiAutomizer took 6705.42 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 66.6 MB in the beginning and 95.1 MB in the end (delta: -28.4 MB). Peak memory consumption was 189.0 kB. Max. memory is 16.1 GB. [2021-10-21 19:13:31,617 INFO L168 Benchmark]: Witness Printer took 4.26 ms. Allocated memory is still 127.9 MB. Free memory was 95.1 MB in the beginning and 94.9 MB in the end (delta: 191.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:13:31,620 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 100.7 MB. Free memory is still 55.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 276.17 ms. Allocated memory is still 100.7 MB. Free memory was 70.0 MB in the beginning and 77.5 MB in the end (delta: -7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.20 ms. Allocated memory is still 100.7 MB. Free memory was 77.5 MB in the beginning and 76.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.51 ms. Allocated memory is still 100.7 MB. Free memory was 76.3 MB in the beginning and 75.4 MB in the end (delta: 954.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 390.01 ms. Allocated memory is still 100.7 MB. Free memory was 75.4 MB in the beginning and 66.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 6705.42 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 66.6 MB in the beginning and 95.1 MB in the end (delta: -28.4 MB). Peak memory consumption was 189.0 kB. Max. memory is 16.1 GB. * Witness Printer took 4.26 ms. Allocated memory is still 127.9 MB. Free memory was 95.1 MB in the beginning and 94.9 MB in the end (delta: 191.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * y + 2 * x + 1 and consists of 5 locations. One deterministic module has 2-nested ranking function (if 2 * z > 0 then 1 else 0), (if 2 * z > 0 then 2 * z else 2147483647 + 2 * tx + 2 * z) and consists of 4 locations. One deterministic module has affine ranking function -2 * y + 2 * x + 1 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * y + 2 * x + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.6s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 5.0s. Construction of modules took 0.0s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 29.7ms AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 60 SDtfs, 61 SDslu, 8 SDs, 0 SdLazy, 41 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 84.8ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax159 hnf100 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq142 hnf94 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 42ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 19:13:31,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55732931-36eb-4a23-aafd-a13a18da8fde/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...