./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/aaron3-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD --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-b2eff8b [2021-10-28 23:19:27,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:19:27,474 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:19:27,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:19:27,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:19:27,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:19:27,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:19:27,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:19:27,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:19:27,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:19:27,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:19:27,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:19:27,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:19:27,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:19:27,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:19:27,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:19:27,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:19:27,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:19:27,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:19:27,592 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:19:27,594 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:19:27,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:19:27,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:19:27,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:19:27,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:19:27,619 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:19:27,619 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:19:27,622 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:19:27,623 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:19:27,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:19:27,625 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:19:27,627 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:19:27,629 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:19:27,631 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:19:27,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:19:27,634 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:19:27,635 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:19:27,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:19:27,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:19:27,637 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:19:27,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:19:27,639 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 23:19:27,704 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:19:27,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:19:27,705 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:19:27,705 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:19:27,706 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:19:27,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:19:27,707 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:19:27,707 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:19:27,707 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:19:27,708 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:19:27,708 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:19:27,708 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:19:27,708 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:19:27,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:19:27,709 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:19:27,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:19:27,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:19:27,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:19:27,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:19:27,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:19:27,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:19:27,711 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:19:27,711 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:19:27,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:19:27,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:19:27,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:19:27,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:19:27,712 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:19:27,713 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:19:27,714 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:19:27,714 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_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea9406930e45e60de12baf697b969fb5af8dbe89b8e2edfb7dfc533c91e7fcaa [2021-10-28 23:19:28,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:19:28,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:19:28,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:19:28,182 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:19:28,183 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:19:28,185 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/termination-crafted/aaron3-1.c [2021-10-28 23:19:28,278 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/data/5bf6b70a9/e1436602bc824b5a9bfefc6608334230/FLAG1ee85bb21 [2021-10-28 23:19:28,861 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:19:28,862 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/sv-benchmarks/c/termination-crafted/aaron3-1.c [2021-10-28 23:19:28,876 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/data/5bf6b70a9/e1436602bc824b5a9bfefc6608334230/FLAG1ee85bb21 [2021-10-28 23:19:29,190 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/data/5bf6b70a9/e1436602bc824b5a9bfefc6608334230 [2021-10-28 23:19:29,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:19:29,195 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:19:29,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:19:29,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:19:29,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:19:29,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:19:29" (1/1) ... [2021-10-28 23:19:29,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e2eda3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:19:29, skipping insertion in model container [2021-10-28 23:19:29,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:19:29" (1/1) ... [2021-10-28 23:19:29,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:19:29,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:19:29,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:19:29,410 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:19:29,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:19:29,460 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:19:29,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:19:29 WrapperNode [2021-10-28 23:19:29,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:19:29,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:19:29,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:19:29,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:19:29,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:19:29" (1/1) ... [2021-10-28 23:19:29,492 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:19:29" (1/1) ... [2021-10-28 23:19:29,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:19:29,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:19:29,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:19:29,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:19:29,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:19:29" (1/1) ... [2021-10-28 23:19:29,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:19:29" (1/1) ... [2021-10-28 23:19:29,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:19:29" (1/1) ... [2021-10-28 23:19:29,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:19:29" (1/1) ... [2021-10-28 23:19:29,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:19:29" (1/1) ... [2021-10-28 23:19:29,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:19:29" (1/1) ... [2021-10-28 23:19:29,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:19:29" (1/1) ... [2021-10-28 23:19:29,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:19:29,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:19:29,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:19:29,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:19:29,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:19:29" (1/1) ... [2021-10-28 23:19:29,559 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:29,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:29,601 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:29,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:19:29,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:19:29,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:19:29,942 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:19:29,943 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 23:19:29,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:19:29 BoogieIcfgContainer [2021-10-28 23:19:29,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:19:29,946 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:19:29,947 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:19:29,956 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:19:29,957 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:19:29,957 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:19:29" (1/3) ... [2021-10-28 23:19:29,959 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b1a805e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:19:29, skipping insertion in model container [2021-10-28 23:19:29,960 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:19:29,960 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:19:29" (2/3) ... [2021-10-28 23:19:29,961 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b1a805e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:19:29, skipping insertion in model container [2021-10-28 23:19:29,961 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:19:29,961 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:19:29" (3/3) ... [2021-10-28 23:19:29,963 INFO L389 chiAutomizerObserver]: Analyzing ICFG aaron3-1.c [2021-10-28 23:19:30,080 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:19:30,080 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:19:30,081 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:19:30,081 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:19:30,081 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:19:30,081 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:19:30,081 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:19:30,082 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:19:30,100 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) [2021-10-28 23:19:30,125 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:19:30,125 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:19:30,125 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:19:30,133 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 23:19:30,133 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:19:30,133 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:19:30,134 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) [2021-10-28 23:19:30,136 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:19:30,137 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:19:30,137 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:19:30,138 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 23:19:30,138 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:19:30,146 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 [2021-10-28 23:19:30,147 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 [2021-10-28 23:19:30,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:19:30,154 INFO L85 PathProgramCache]: Analyzing trace with hash 29742506, now seen corresponding path program 1 times [2021-10-28 23:19:30,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:19:30,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153285736] [2021-10-28 23:19:30,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:19:30,168 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:19:30,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:19:30,293 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:19:30,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:19:30,351 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:19:30,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:19:30,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1931, now seen corresponding path program 1 times [2021-10-28 23:19:30,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:19:30,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78387189] [2021-10-28 23:19:30,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:19:30,358 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:19:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:19:30,382 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:19:30,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:19:30,404 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:19:30,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:19:30,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1482221836, now seen corresponding path program 1 times [2021-10-28 23:19:30,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:19:30,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684609823] [2021-10-28 23:19:30,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:19:30,408 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:19:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:19:30,421 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:19:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:19:30,452 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:19:30,625 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:19:30,626 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:19:30,626 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:19:30,626 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:19:30,626 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:19:30,627 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:30,627 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:19:30,627 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:19:30,627 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration1_Loop [2021-10-28 23:19:30,627 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:19:30,628 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:19:30,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:30,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:30,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:30,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:30,767 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:19:30,768 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:19:30,771 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:30,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:30,776 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:30,784 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:19:30,784 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:19:30,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:19:30,815 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:19:30,816 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: [] [2021-10-28 23:19:30,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:30,862 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:30,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:30,864 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:30,871 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:19:30,872 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:19:30,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:19:30,895 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:19:30,895 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: [] [2021-10-28 23:19:30,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:30,944 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:30,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:30,946 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:30,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:19:30,955 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:19:30,956 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:19:31,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:31,029 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:31,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:31,031 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:31,040 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:19:31,040 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:19:31,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:19:31,438 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:19:31,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:31,448 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:19:31,448 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:19:31,448 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:19:31,449 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:19:31,449 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:19:31,449 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:31,449 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:19:31,449 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:19:31,449 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration1_Loop [2021-10-28 23:19:31,450 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:19:31,450 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:19:31,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:31,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:31,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:31,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:31,575 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:19:31,581 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:19:31,583 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:31,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:31,585 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:31,592 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 [2021-10-28 23:19:31,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:19:31,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:19:31,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:19:31,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:19:31,612 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:19:31,613 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:19:31,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:19:31,641 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:19:31,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:31,689 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:31,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:31,691 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:31,698 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 [2021-10-28 23:19:31,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:19:31,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:19:31,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:19:31,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:19:31,715 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:19:31,716 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:19:31,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:19:31,734 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:19:31,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:31,780 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:31,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:31,782 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:31,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:19:31,790 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 [2021-10-28 23:19:31,802 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:19:31,803 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:19:31,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:19:31,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:19:31,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:19:31,808 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:19:31,808 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:19:31,830 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:19:31,836 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:19:31,836 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:19:31,838 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:31,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:31,841 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:31,848 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:19:31,848 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:19:31,848 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:19:31,849 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 [] [2021-10-28 23:19:31,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:19:31,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:31,900 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:19:31,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:19:31,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:19:31,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:19:31,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:19:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:19:32,024 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:19:32,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:19:32,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:19:32,103 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 [2021-10-28 23:19:32,105 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) [2021-10-28 23:19:32,188 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. [2021-10-28 23:19:32,189 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 [2021-10-28 23:19:32,192 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) [2021-10-28 23:19:32,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2021-10-28 23:19:32,195 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 23:19:32,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:19:32,198 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-28 23:19:32,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:19:32,199 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-28 23:19:32,200 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:19:32,201 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 42 transitions. [2021-10-28 23:19:32,210 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:19:32,216 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 12 states and 15 transitions. [2021-10-28 23:19:32,217 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-10-28 23:19:32,218 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-28 23:19:32,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2021-10-28 23:19:32,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:19:32,220 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-10-28 23:19:32,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2021-10-28 23:19:32,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-28 23:19:32,252 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) [2021-10-28 23:19:32,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2021-10-28 23:19:32,255 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-10-28 23:19:32,255 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-10-28 23:19:32,256 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:19:32,256 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2021-10-28 23:19:32,259 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:19:32,259 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:19:32,259 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:19:32,260 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:19:32,260 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:19:32,261 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 [2021-10-28 23:19:32,261 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 [2021-10-28 23:19:32,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:19:32,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1482221843, now seen corresponding path program 1 times [2021-10-28 23:19:32,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:19:32,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809274380] [2021-10-28 23:19:32,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:19:32,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:19:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:19:32,299 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:19:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:19:32,328 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:19:32,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:19:32,331 INFO L85 PathProgramCache]: Analyzing trace with hash 67272, now seen corresponding path program 1 times [2021-10-28 23:19:32,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:19:32,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385727176] [2021-10-28 23:19:32,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:19:32,332 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:19:32,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:19:32,353 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:19:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:19:32,362 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:19:32,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:19:32,364 INFO L85 PathProgramCache]: Analyzing trace with hash -312117156, now seen corresponding path program 1 times [2021-10-28 23:19:32,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:19:32,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51551847] [2021-10-28 23:19:32,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:19:32,367 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:19:32,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:19:32,388 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:19:32,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:19:32,429 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:19:32,525 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:19:32,525 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:19:32,526 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:19:32,526 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:19:32,526 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:19:32,526 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:32,526 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:19:32,527 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:19:32,527 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration2_Loop [2021-10-28 23:19:32,527 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:19:32,527 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:19:32,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:32,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:32,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:32,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:32,691 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:19:32,691 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:19:32,691 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:32,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:32,731 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:32,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:32,770 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:19:32,770 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:19:32,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 23:19:32,792 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:19:32,793 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: [] [2021-10-28 23:19:32,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:32,838 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:32,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:32,839 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:32,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 23:19:32,845 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:19:32,846 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:19:32,870 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:19:32,871 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: [] [2021-10-28 23:19:32,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:32,900 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:32,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:32,902 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:32,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 23:19:32,908 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:19:32,908 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:19:32,929 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:19:32,929 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: [] [2021-10-28 23:19:32,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:32,958 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:32,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:32,960 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:32,979 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:19:32,980 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:19:32,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 23:19:33,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:33,035 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:33,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:33,041 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:33,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 23:19:33,043 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:19:33,043 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:19:33,115 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:19:33,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:33,122 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:19:33,122 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:19:33,122 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:19:33,122 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:19:33,122 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:19:33,122 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:33,122 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:19:33,122 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:19:33,123 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration2_Loop [2021-10-28 23:19:33,123 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:19:33,123 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:19:33,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:33,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:33,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:33,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:33,256 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:19:33,257 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:19:33,257 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:33,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:33,271 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:33,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 23:19:33,280 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 [2021-10-28 23:19:33,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:19:33,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:19:33,293 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:19:33,293 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:19:33,308 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:19:33,308 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:19:33,322 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:19:33,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:33,362 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:33,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:33,367 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:33,376 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 [2021-10-28 23:19:33,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:19:33,387 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:19:33,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:19:33,388 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 23:19:33,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:19:33,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 23:19:33,389 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:19:33,390 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:19:33,426 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:19:33,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:33,455 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:33,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:33,457 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:33,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 23:19:33,460 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 [2021-10-28 23:19:33,469 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:19:33,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:19:33,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:19:33,470 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:19:33,474 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:19:33,474 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:19:33,501 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:19:33,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:33,527 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:33,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:33,528 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:33,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 23:19:33,538 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 [2021-10-28 23:19:33,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:19:33,548 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:19:33,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:19:33,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:19:33,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:19:33,553 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:19:33,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:19:33,588 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:19:33,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:33,629 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 23:19:33,629 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:33,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:33,631 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:33,643 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 [2021-10-28 23:19:33,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:19:33,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:19:33,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:19:33,656 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:19:33,661 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-28 23:19:33,661 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-28 23:19:33,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 23:19:33,686 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:19:33,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:33,731 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:33,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:33,732 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:33,739 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 [2021-10-28 23:19:33,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 23:19:33,749 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:19:33,750 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:19:33,750 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:19:33,750 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 23:19:33,750 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:19:33,752 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:19:33,753 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:19:33,763 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:19:33,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:33,791 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:33,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:33,792 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:33,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 23:19:33,794 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 [2021-10-28 23:19:33,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:19:33,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:19:33,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:19:33,806 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:19:33,811 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-28 23:19:33,811 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-28 23:19:33,834 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:19:33,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:33,881 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:33,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:33,883 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:33,888 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 [2021-10-28 23:19:33,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:19:33,900 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:19:33,900 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:19:33,900 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:19:33,900 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:19:33,905 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:19:33,905 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:19:33,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 23:19:33,917 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:19:33,928 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-10-28 23:19:33,928 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:19:33,929 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:33,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:33,931 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:33,933 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:19:33,933 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:19:33,933 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:19:33,934 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 [] [2021-10-28 23:19:33,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 23:19:33,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-10-28 23:19:33,971 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:19:34,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:19:34,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:19:34,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:19:34,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:19:34,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:19:34,060 WARN L261 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:19:34,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:19:34,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:19:34,379 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 [2021-10-28 23:19:34,379 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) [2021-10-28 23:19:34,501 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. [2021-10-28 23:19:34,502 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 [2021-10-28 23:19:34,502 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) [2021-10-28 23:19:34,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2021-10-28 23:19:34,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-28 23:19:34,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:19:34,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 10 letters. Loop has 3 letters. [2021-10-28 23:19:34,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:19:34,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 7 letters. Loop has 6 letters. [2021-10-28 23:19:34,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:19:34,504 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 22 transitions. [2021-10-28 23:19:34,505 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:19:34,506 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 22 transitions. [2021-10-28 23:19:34,506 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-28 23:19:34,506 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-10-28 23:19:34,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2021-10-28 23:19:34,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:19:34,507 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2021-10-28 23:19:34,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2021-10-28 23:19:34,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2021-10-28 23:19:34,508 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) [2021-10-28 23:19:34,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2021-10-28 23:19:34,509 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-10-28 23:19:34,509 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-10-28 23:19:34,509 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:19:34,509 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2021-10-28 23:19:34,510 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:19:34,510 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:19:34,510 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:19:34,511 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:19:34,511 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:19:34,511 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 [2021-10-28 23:19:34,511 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 [2021-10-28 23:19:34,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:19:34,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1295763161, now seen corresponding path program 2 times [2021-10-28 23:19:34,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:19:34,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746745933] [2021-10-28 23:19:34,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:19:34,513 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:19:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:19:34,530 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:19:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:19:34,564 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:19:34,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:19:34,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1931, now seen corresponding path program 2 times [2021-10-28 23:19:34,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:19:34,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215986264] [2021-10-28 23:19:34,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:19:34,566 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:19:34,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:19:34,572 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:19:34,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:19:34,579 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:19:34,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:19:34,583 INFO L85 PathProgramCache]: Analyzing trace with hash -312117149, now seen corresponding path program 1 times [2021-10-28 23:19:34,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:19:34,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013153238] [2021-10-28 23:19:34,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:19:34,584 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:19:34,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:19:34,600 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:19:34,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:19:34,625 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:19:34,657 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:19:34,657 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:19:34,657 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:19:34,658 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:19:34,658 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:19:34,658 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:34,658 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:19:34,658 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:19:34,658 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration3_Loop [2021-10-28 23:19:34,659 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:19:34,659 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:19:34,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:34,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:34,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:34,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:34,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:34,801 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:19:34,802 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:19:34,802 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:34,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:34,803 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:34,811 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:19:34,812 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:19:34,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 23:19:34,840 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:19:34,840 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: [] [2021-10-28 23:19:34,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:34,881 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:34,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:34,882 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:34,884 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:19:34,884 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:19:34,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 23:19:34,919 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:19:34,919 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: [] [2021-10-28 23:19:34,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:34,962 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:34,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:34,964 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:34,967 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:19:34,967 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:19:34,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 23:19:34,987 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:19:34,987 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: [] [2021-10-28 23:19:35,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:35,034 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:35,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:35,035 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:35,043 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:19:35,043 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:19:35,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 23:19:35,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:35,113 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:35,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:35,114 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:35,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 23:19:35,121 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:19:35,121 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:19:35,432 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:19:35,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:35,436 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:19:35,436 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:19:35,436 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:19:35,436 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:19:35,436 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:19:35,436 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:35,436 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:19:35,436 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:19:35,436 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration3_Loop [2021-10-28 23:19:35,436 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:19:35,437 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:19:35,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:35,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:35,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:35,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:35,535 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:19:35,536 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:19:35,536 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:35,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:35,537 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:35,555 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 [2021-10-28 23:19:35,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:19:35,567 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:19:35,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:19:35,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:19:35,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:19:35,568 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:19:35,568 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:19:35,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 23:19:35,590 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:19:35,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:35,622 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:35,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:35,625 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:35,631 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 [2021-10-28 23:19:35,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:19:35,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:19:35,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:19:35,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:19:35,653 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:19:35,653 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:19:35,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 23:19:35,674 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:19:35,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:35,720 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:35,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:35,721 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:35,724 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 [2021-10-28 23:19:35,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:19:35,735 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:19:35,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:19:35,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:19:35,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:19:35,740 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:19:35,740 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:19:35,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 23:19:35,750 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:19:35,764 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:19:35,764 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:19:35,764 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:35,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:35,766 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:35,768 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:19:35,768 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:19:35,769 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:19:35,769 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 [] [2021-10-28 23:19:35,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 23:19:35,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:35,813 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:19:35,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:19:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:19:35,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:19:35,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:19:35,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:19:35,900 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:19:35,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:19:35,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:19:35,922 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 [2021-10-28 23:19:35,923 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) [2021-10-28 23:19:35,948 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. [2021-10-28 23:19:35,949 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 [2021-10-28 23:19:35,949 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) [2021-10-28 23:19:35,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-10-28 23:19:35,950 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2021-10-28 23:19:35,950 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:19:35,950 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2021-10-28 23:19:35,951 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:19:35,951 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 4 letters. [2021-10-28 23:19:35,951 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:19:35,952 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 29 transitions. [2021-10-28 23:19:35,954 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:19:35,955 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 18 states and 23 transitions. [2021-10-28 23:19:35,955 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-28 23:19:35,956 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-28 23:19:35,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2021-10-28 23:19:35,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:19:35,956 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-10-28 23:19:35,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2021-10-28 23:19:35,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-28 23:19:35,959 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) [2021-10-28 23:19:35,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2021-10-28 23:19:35,966 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-10-28 23:19:35,967 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-10-28 23:19:35,967 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:19:35,967 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2021-10-28 23:19:35,971 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:19:35,971 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:19:35,971 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:19:35,972 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2021-10-28 23:19:35,972 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:19:35,973 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 [2021-10-28 23:19:35,973 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 [2021-10-28 23:19:35,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:19:35,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1085697206, now seen corresponding path program 3 times [2021-10-28 23:19:35,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:19:35,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572336835] [2021-10-28 23:19:35,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:19:35,974 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:19:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:19:35,995 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:19:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:19:36,028 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:19:36,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:19:36,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1931, now seen corresponding path program 3 times [2021-10-28 23:19:36,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:19:36,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409866176] [2021-10-28 23:19:36,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:19:36,031 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:19:36,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:19:36,047 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:19:36,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:19:36,054 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:19:36,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:19:36,055 INFO L85 PathProgramCache]: Analyzing trace with hash 322038932, now seen corresponding path program 2 times [2021-10-28 23:19:36,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:19:36,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455675627] [2021-10-28 23:19:36,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:19:36,059 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:19:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:19:36,070 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:19:36,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:19:36,083 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:19:36,113 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:19:36,113 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:19:36,113 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:19:36,113 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:19:36,113 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:19:36,113 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:36,114 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:19:36,114 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:19:36,114 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration4_Loop [2021-10-28 23:19:36,114 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:19:36,114 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:19:36,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:36,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:36,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:36,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:36,190 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:19:36,190 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:19:36,190 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:36,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:36,192 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:36,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 23:19:36,198 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:19:36,198 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:19:36,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:36,262 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:36,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:36,263 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:36,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 23:19:36,281 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:19:36,281 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:19:36,563 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:19:36,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:36,569 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:19:36,569 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:19:36,569 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:19:36,570 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:19:36,570 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:19:36,570 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:36,570 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:19:36,570 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:19:36,570 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration4_Loop [2021-10-28 23:19:36,570 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:19:36,570 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:19:36,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:36,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:36,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:36,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:19:36,664 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:19:36,666 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:19:36,666 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:36,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:36,669 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:36,672 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 [2021-10-28 23:19:36,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 23:19:36,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:19:36,683 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:19:36,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:19:36,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:19:36,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:19:36,684 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:19:36,684 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:19:36,686 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:19:36,689 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:19:36,690 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:19:36,690 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:19:36,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:19:36,691 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:19:36,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 23:19:36,693 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:19:36,693 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:19:36,693 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:19:36,694 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 [] [2021-10-28 23:19:36,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:36,721 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:19:36,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:19:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:19:36,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:19:36,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:19:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:19:36,813 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:19:36,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:19:36,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:19:36,833 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 [2021-10-28 23:19:36,833 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) [2021-10-28 23:19:36,851 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. [2021-10-28 23:19:36,852 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 [2021-10-28 23:19:36,852 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) [2021-10-28 23:19:36,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-10-28 23:19:36,853 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 2 letters. [2021-10-28 23:19:36,853 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:19:36,854 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:19:36,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:19:36,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:19:36,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:19:36,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:19:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:19:36,923 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:19:36,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:19:36,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:19:36,943 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 [2021-10-28 23:19:36,943 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) [2021-10-28 23:19:36,956 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. [2021-10-28 23:19:36,957 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 [2021-10-28 23:19:36,958 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) [2021-10-28 23:19:36,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-10-28 23:19:36,960 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 2 letters. [2021-10-28 23:19:36,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:19:36,960 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:19:36,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:19:36,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:19:36,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:19:36,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:19:37,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:19:37,028 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:19:37,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:19:37,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:19:37,060 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 [2021-10-28 23:19:37,060 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) [2021-10-28 23:19:37,075 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. [2021-10-28 23:19:37,077 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 [2021-10-28 23:19:37,077 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) [2021-10-28 23:19:37,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2021-10-28 23:19:37,077 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 11 letters. Loop has 2 letters. [2021-10-28 23:19:37,078 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:19:37,078 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 13 letters. Loop has 2 letters. [2021-10-28 23:19:37,078 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:19:37,078 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 11 letters. Loop has 4 letters. [2021-10-28 23:19:37,079 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:19:37,079 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 29 transitions. [2021-10-28 23:19:37,080 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:19:37,080 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2021-10-28 23:19:37,080 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:19:37,080 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:19:37,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:19:37,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:19:37,081 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:19:37,081 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:19:37,081 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:19:37,081 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 23:19:37,082 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:19:37,082 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:19:37,082 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:19:37,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:19:37 BoogieIcfgContainer [2021-10-28 23:19:37,088 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:19:37,089 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:19:37,089 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:19:37,089 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:19:37,090 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:19:29" (3/4) ... [2021-10-28 23:19:37,093 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:19:37,093 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:19:37,095 INFO L168 Benchmark]: Toolchain (without parser) took 7898.40 ms. Allocated memory was 98.6 MB in the beginning and 130.0 MB in the end (delta: 31.5 MB). Free memory was 65.5 MB in the beginning and 43.2 MB in the end (delta: 22.3 MB). Peak memory consumption was 54.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:19:37,096 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 98.6 MB. Free memory is still 54.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:19:37,096 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.05 ms. Allocated memory is still 98.6 MB. Free memory was 65.3 MB in the beginning and 74.5 MB in the end (delta: -9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:19:37,097 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.85 ms. Allocated memory is still 98.6 MB. Free memory was 74.5 MB in the beginning and 73.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:19:37,098 INFO L168 Benchmark]: Boogie Preprocessor took 24.35 ms. Allocated memory is still 98.6 MB. Free memory was 73.1 MB in the beginning and 72.2 MB in the end (delta: 964.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:19:37,099 INFO L168 Benchmark]: RCFGBuilder took 399.50 ms. Allocated memory is still 98.6 MB. Free memory was 72.2 MB in the beginning and 63.7 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:19:37,099 INFO L168 Benchmark]: BuchiAutomizer took 7142.24 ms. Allocated memory was 98.6 MB in the beginning and 130.0 MB in the end (delta: 31.5 MB). Free memory was 63.7 MB in the beginning and 44.2 MB in the end (delta: 19.5 MB). Peak memory consumption was 51.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:19:37,100 INFO L168 Benchmark]: Witness Printer took 4.26 ms. Allocated memory is still 130.0 MB. Free memory was 44.2 MB in the beginning and 43.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:19:37,104 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 98.6 MB. Free memory is still 54.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 264.05 ms. Allocated memory is still 98.6 MB. Free memory was 65.3 MB in the beginning and 74.5 MB in the end (delta: -9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.85 ms. Allocated memory is still 98.6 MB. Free memory was 74.5 MB in the beginning and 73.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.35 ms. Allocated memory is still 98.6 MB. Free memory was 73.1 MB in the beginning and 72.2 MB in the end (delta: 964.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 399.50 ms. Allocated memory is still 98.6 MB. Free memory was 72.2 MB in the beginning and 63.7 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 7142.24 ms. Allocated memory was 98.6 MB in the beginning and 130.0 MB in the end (delta: 31.5 MB). Free memory was 63.7 MB in the beginning and 44.2 MB in the end (delta: 19.5 MB). Peak memory consumption was 51.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.26 ms. Allocated memory is still 130.0 MB. Free memory was 44.2 MB in the beginning and 43.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. 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 7.0s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 5.5s. 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 0.0s 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, 0.0s 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: 57ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 23:19:37,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:37,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-28 23:19:37,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97584899-ebca-47de-9a89-ba979a015c3f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...