./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --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 8553bd7027647a5604588c30aa29c454809a172163824e055b8bdeea70d5613d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:37:31,737 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:37:31,847 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-19 07:37:31,855 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:37:31,856 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:37:31,886 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:37:31,887 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:37:31,887 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:37:31,888 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:37:31,889 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:37:31,890 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:37:31,891 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:37:31,891 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:37:31,892 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:37:31,892 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:37:31,893 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:37:31,894 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:37:31,894 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:37:31,895 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:37:31,896 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:37:31,896 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:37:31,897 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:37:31,898 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:37:31,898 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:37:31,899 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:37:31,899 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:37:31,900 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:37:31,900 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:37:31,901 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:37:31,902 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:37:31,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:37:31,903 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:37:31,904 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:37:31,904 INFO L153 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_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8553bd7027647a5604588c30aa29c454809a172163824e055b8bdeea70d5613d [2023-11-19 07:37:32,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:37:32,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:37:32,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:37:32,195 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:37:32,195 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:37:32,197 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1.c [2023-11-19 07:37:35,436 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:37:35,648 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:37:35,649 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1.c [2023-11-19 07:37:35,657 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/data/aafe42291/e7f911cc835047fba3fd102b8eb911f5/FLAGf8a9ba7bb [2023-11-19 07:37:35,674 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/data/aafe42291/e7f911cc835047fba3fd102b8eb911f5 [2023-11-19 07:37:35,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:37:35,679 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:37:35,680 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:35,681 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:37:35,693 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:37:35,693 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:35" (1/1) ... [2023-11-19 07:37:35,695 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68707a24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:35, skipping insertion in model container [2023-11-19 07:37:35,695 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:35" (1/1) ... [2023-11-19 07:37:35,721 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:37:35,866 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:35,871 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:37:35,882 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:35,894 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:37:35,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:35 WrapperNode [2023-11-19 07:37:35,894 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:35,895 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:35,895 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:37:35,896 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:37:35,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:35" (1/1) ... [2023-11-19 07:37:35,909 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:35" (1/1) ... [2023-11-19 07:37:35,930 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2023-11-19 07:37:35,930 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:35,931 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:37:35,931 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:37:35,931 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:37:35,942 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:35" (1/1) ... [2023-11-19 07:37:35,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:35" (1/1) ... [2023-11-19 07:37:35,943 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:35" (1/1) ... [2023-11-19 07:37:35,944 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:35" (1/1) ... [2023-11-19 07:37:35,946 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:35" (1/1) ... [2023-11-19 07:37:35,949 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:35" (1/1) ... [2023-11-19 07:37:35,950 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:35" (1/1) ... [2023-11-19 07:37:35,951 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:35" (1/1) ... [2023-11-19 07:37:35,953 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:37:35,954 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:37:35,954 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:37:35,954 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:37:35,955 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:35" (1/1) ... [2023-11-19 07:37:35,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:35,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:35,997 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:36,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:37:36,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:37:36,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:37:36,174 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:37:36,178 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:37:36,303 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:37:36,311 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:37:36,312 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:37:36,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:36 BoogieIcfgContainer [2023-11-19 07:37:36,315 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:37:36,316 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:37:36,317 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:37:36,329 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:37:36,330 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:37:36,331 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:37:35" (1/3) ... [2023-11-19 07:37:36,333 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7defedc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:37:36, skipping insertion in model container [2023-11-19 07:37:36,333 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:37:36,333 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:35" (2/3) ... [2023-11-19 07:37:36,335 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7defedc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:37:36, skipping insertion in model container [2023-11-19 07:37:36,336 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:37:36,336 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:36" (3/3) ... [2023-11-19 07:37:36,345 INFO L332 chiAutomizerObserver]: Analyzing ICFG BradleyMannaSipma-CAV2005-Fig1.c [2023-11-19 07:37:36,419 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:37:36,420 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:37:36,420 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:37:36,420 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:37:36,420 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:37:36,421 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:37:36,422 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:37:36,423 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:37:36,428 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2023-11-19 07:37:36,453 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:37:36,454 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:37:36,454 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:37:36,460 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-19 07:37:36,461 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:37:36,461 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:37:36,462 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2023-11-19 07:37:36,464 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:37:36,465 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:37:36,465 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:37:36,465 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-19 07:37:36,466 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:37:36,476 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;havoc main_#t~nondet0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3#L18true assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 6#L20-2true [2023-11-19 07:37:36,477 INFO L750 eck$LassoCheckResult]: Loop: 6#L20-2true assume !!(main_~y1~0#1 != main_~y2~0#1); 9#L20true assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 6#L20-2true [2023-11-19 07:37:36,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:36,483 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2023-11-19 07:37:36,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:36,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545049582] [2023-11-19 07:37:36,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:36,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:36,572 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:37:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:36,593 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:37:36,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:36,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 1 times [2023-11-19 07:37:36,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:36,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911656867] [2023-11-19 07:37:36,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:36,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:36,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:36,611 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:37:36,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:36,619 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:37:36,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:36,621 INFO L85 PathProgramCache]: Analyzing trace with hash 28693989, now seen corresponding path program 1 times [2023-11-19 07:37:36,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:36,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160820475] [2023-11-19 07:37:36,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:36,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:36,631 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:37:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:36,655 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:37:36,754 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:37:36,755 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:37:36,755 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:37:36,755 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:37:36,756 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:37:36,756 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:36,756 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:37:36,756 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:37:36,756 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration1_Lasso [2023-11-19 07:37:36,757 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:37:36,757 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:37:36,778 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:36,790 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:36,793 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:36,809 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:36,813 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:36,817 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:36,892 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:37:36,893 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:37:36,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:36,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:36,900 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:36,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-19 07:37:36,909 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:37:36,909 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:36,935 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:37:36,936 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: [] [2023-11-19 07:37:36,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:36,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:36,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:36,962 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:36,969 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:37:36,969 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:36,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-19 07:37:37,000 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:37:37,001 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:37:37,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:37,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:37,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:37,025 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:37,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-19 07:37:37,033 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:37:37,033 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:37,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:37,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:37,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:37,094 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:37,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-19 07:37:37,097 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:37:37,097 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:37,266 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:37:37,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-19 07:37:37,270 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:37:37,270 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:37:37,270 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:37:37,270 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:37:37,270 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:37:37,271 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:37,271 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:37:37,271 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:37:37,271 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration1_Lasso [2023-11-19 07:37:37,271 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:37:37,271 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:37:37,274 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:37,281 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:37,293 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:37,297 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:37,300 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:37,303 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:37,365 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:37:37,370 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:37:37,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:37,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:37,373 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:37,381 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 [2023-11-19 07:37:37,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-19 07:37:37,394 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:37:37,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:37:37,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:37:37,395 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:37:37,401 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:37:37,401 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:37:37,415 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:37:37,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:37,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:37,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:37,434 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:37,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-19 07:37:37,441 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 [2023-11-19 07:37:37,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:37:37,452 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:37:37,452 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:37:37,452 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:37:37,462 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:37:37,463 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:37:37,482 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:37:37,491 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-11-19 07:37:37,492 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-19 07:37:37,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:37,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:37,534 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:37,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-19 07:37:37,541 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:37:37,560 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2023-11-19 07:37:37,561 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:37:37,561 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y1~0#1) = 1*ULTIMATE.start_main_~y1~0#1 Supporting invariants [2*ULTIMATE.start_main_~y1~0#1 - 1 >= 0, 1*ULTIMATE.start_main_~y2~0#1 - 1 >= 0] [2023-11-19 07:37:37,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-11-19 07:37:37,596 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2023-11-19 07:37:37,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:37,673 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:37:37,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:37,695 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:37:37,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:37,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:37,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:37,799 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-19 07:37:37,801 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-19 07:37:37,877 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 25 states and 33 transitions. Complement of second has 6 states. [2023-11-19 07:37:37,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-19 07:37:37,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-19 07:37:37,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2023-11-19 07:37:37,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 2 letters. [2023-11-19 07:37:37,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:37:37,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 5 letters. Loop has 2 letters. [2023-11-19 07:37:37,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:37:37,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 4 letters. [2023-11-19 07:37:37,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:37:37,889 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2023-11-19 07:37:37,892 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:37:37,895 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 9 states and 12 transitions. [2023-11-19 07:37:37,896 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-19 07:37:37,897 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-11-19 07:37:37,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2023-11-19 07:37:37,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:37:37,898 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-19 07:37:37,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2023-11-19 07:37:37,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-11-19 07:37:37,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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) [2023-11-19 07:37:37,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2023-11-19 07:37:37,920 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-19 07:37:37,920 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-19 07:37:37,920 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 07:37:37,920 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2023-11-19 07:37:37,921 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:37:37,921 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:37:37,921 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:37:37,921 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-19 07:37:37,921 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:37:37,922 INFO L748 eck$LassoCheckResult]: Stem: 92#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 93#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;havoc main_#t~nondet0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 85#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 86#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 90#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 87#L20-2 [2023-11-19 07:37:37,922 INFO L750 eck$LassoCheckResult]: Loop: 87#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 88#L20 assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 87#L20-2 [2023-11-19 07:37:37,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:37,923 INFO L85 PathProgramCache]: Analyzing trace with hash 28693991, now seen corresponding path program 1 times [2023-11-19 07:37:37,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:37,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561192645] [2023-11-19 07:37:37,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:37,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:37,930 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:37:37,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:37,935 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:37:37,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:37,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 2 times [2023-11-19 07:37:37,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:37,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122761326] [2023-11-19 07:37:37,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:37,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:37,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:37,942 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:37:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:37,946 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:37:37,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:37,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1805122026, now seen corresponding path program 1 times [2023-11-19 07:37:37,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:37,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195165713] [2023-11-19 07:37:37,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:37,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:37,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:37,955 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:37:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:37,961 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:37:38,032 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:37:38,032 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:37:38,032 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:37:38,032 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:37:38,032 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:37:38,032 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:38,032 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:37:38,032 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:37:38,033 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration2_Lasso [2023-11-19 07:37:38,033 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:37:38,033 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:37:38,035 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:38,039 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:38,066 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:38,070 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:38,072 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:38,076 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:38,145 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:37:38,145 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:37:38,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:38,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:38,149 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:38,157 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:37:38,157 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:38,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-19 07:37:38,180 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:37:38,180 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: [] [2023-11-19 07:37:38,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:38,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:38,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:38,206 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:38,217 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:37:38,218 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:38,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-19 07:37:38,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-11-19 07:37:38,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:38,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:38,258 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:38,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-19 07:37:38,265 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:37:38,265 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:38,392 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:37:38,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:38,399 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:37:38,400 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:37:38,400 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:37:38,400 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:37:38,400 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:37:38,400 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:38,400 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:37:38,400 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:37:38,400 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration2_Lasso [2023-11-19 07:37:38,400 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:37:38,400 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:37:38,402 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:38,410 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:38,413 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:38,416 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:38,423 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:38,425 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:38,517 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:37:38,518 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:37:38,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:38,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:38,521 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:38,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-19 07:37:38,525 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 [2023-11-19 07:37:38,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:37:38,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:37:38,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:37:38,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:37:38,543 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:37:38,543 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:37:38,560 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:37:38,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:38,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:38,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:38,585 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:38,593 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 [2023-11-19 07:37:38,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:37:38,606 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:37:38,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:37:38,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:37:38,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:37:38,607 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:37:38,607 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:37:38,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-19 07:37:38,628 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:37:38,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:38,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:38,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:38,648 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:38,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-19 07:37:38,653 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 [2023-11-19 07:37:38,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:37:38,663 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:37:38,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:37:38,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:37:38,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:37:38,664 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:37:38,664 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:37:38,675 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:37:38,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:38,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:38,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:38,696 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:38,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-19 07:37:38,704 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 [2023-11-19 07:37:38,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:37:38,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:37:38,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:37:38,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:37:38,717 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:37:38,718 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:37:38,731 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:37:38,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:38,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:38,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:38,756 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:38,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-19 07:37:38,770 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 [2023-11-19 07:37:38,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:37:38,783 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:37:38,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:37:38,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:37:38,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:37:38,784 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:37:38,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:37:38,793 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:37:38,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:38,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:38,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:38,819 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:38,822 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 [2023-11-19 07:37:38,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-19 07:37:38,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:37:38,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:37:38,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:37:38,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:37:38,840 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:37:38,840 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:37:38,853 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:37:38,860 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-19 07:37:38,860 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-19 07:37:38,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:38,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:38,862 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:38,869 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:37:38,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-19 07:37:38,925 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-11-19 07:37:38,925 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:37:38,925 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y1~0#1, ULTIMATE.start_main_~y2~0#1) = 1*ULTIMATE.start_main_~y1~0#1 - 1*ULTIMATE.start_main_~y2~0#1 Supporting invariants [1*ULTIMATE.start_main_~y2~0#1 - 1 >= 0] [2023-11-19 07:37:38,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:38,949 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-11-19 07:37:39,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:39,014 WARN L260 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:37:39,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:39,048 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:37:39,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:39,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:39,069 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-11-19 07:37:39,070 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2023-11-19 07:37:39,117 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 13 states and 18 transitions. Complement of second has 6 states. [2023-11-19 07:37:39,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-19 07:37:39,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2023-11-19 07:37:39,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2023-11-19 07:37:39,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2023-11-19 07:37:39,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:37:39,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2023-11-19 07:37:39,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:37:39,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2023-11-19 07:37:39,121 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:37:39,121 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2023-11-19 07:37:39,122 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:37:39,123 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 18 transitions. [2023-11-19 07:37:39,123 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-19 07:37:39,123 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-11-19 07:37:39,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2023-11-19 07:37:39,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:37:39,124 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-19 07:37:39,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2023-11-19 07:37:39,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-11-19 07:37:39,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 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) [2023-11-19 07:37:39,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2023-11-19 07:37:39,127 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-19 07:37:39,127 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-19 07:37:39,127 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-19 07:37:39,127 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2023-11-19 07:37:39,128 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:37:39,128 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:37:39,128 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:37:39,129 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1] [2023-11-19 07:37:39,129 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:37:39,129 INFO L748 eck$LassoCheckResult]: Stem: 166#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 167#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;havoc main_#t~nondet0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 159#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 160#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 164#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 168#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 169#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 161#L20-2 [2023-11-19 07:37:39,129 INFO L750 eck$LassoCheckResult]: Loop: 161#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 162#L20 assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 161#L20-2 [2023-11-19 07:37:39,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:39,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1805122028, now seen corresponding path program 2 times [2023-11-19 07:37:39,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:39,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776152003] [2023-11-19 07:37:39,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:39,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:39,139 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:37:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:39,146 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:37:39,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:39,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 3 times [2023-11-19 07:37:39,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:39,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811417210] [2023-11-19 07:37:39,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:39,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:39,153 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:37:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:39,157 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:37:39,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:39,158 INFO L85 PathProgramCache]: Analyzing trace with hash -444518225, now seen corresponding path program 2 times [2023-11-19 07:37:39,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:39,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026513927] [2023-11-19 07:37:39,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:39,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:39,170 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:37:39,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:39,188 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:37:39,264 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:37:39,264 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:37:39,264 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:37:39,264 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:37:39,264 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:37:39,265 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:39,265 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:37:39,265 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:37:39,265 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration3_Lasso [2023-11-19 07:37:39,265 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:37:39,265 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:37:39,267 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:39,280 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:39,286 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:39,288 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:39,292 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:39,296 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:39,370 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:37:39,371 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:37:39,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:39,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:39,372 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:39,375 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:37:39,375 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:39,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-19 07:37:39,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:39,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:39,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:39,432 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:39,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-19 07:37:39,436 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:37:39,437 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:39,586 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:37:39,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:39,590 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:37:39,590 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:37:39,590 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:37:39,590 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:37:39,590 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:37:39,590 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:39,590 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:37:39,590 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:37:39,591 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration3_Lasso [2023-11-19 07:37:39,591 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:37:39,591 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:37:39,592 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:39,606 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:39,609 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:39,612 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:39,615 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:39,618 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:39,679 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:37:39,679 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:37:39,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:39,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:39,680 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:39,694 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 [2023-11-19 07:37:39,707 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:37:39,707 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:37:39,707 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:37:39,707 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:37:39,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-19 07:37:39,714 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:37:39,714 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:37:39,728 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:37:39,736 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-19 07:37:39,736 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-19 07:37:39,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:39,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:39,742 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:39,751 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:37:39,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-19 07:37:39,785 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-11-19 07:37:39,785 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:37:39,785 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y1~0#1, ULTIMATE.start_main_~y2~0#1) = 1*ULTIMATE.start_main_~y1~0#1 - 1*ULTIMATE.start_main_~y2~0#1 Supporting invariants [1*ULTIMATE.start_main_~y2~0#1 - 1 >= 0] [2023-11-19 07:37:39,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:39,815 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-11-19 07:37:39,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:39,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:37:39,876 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:39,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:39,921 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:37:39,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:39,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:39,938 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-11-19 07:37:39,938 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-11-19 07:37:39,978 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 15 states and 22 transitions. Complement of second has 6 states. [2023-11-19 07:37:39,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-19 07:37:39,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-11-19 07:37:39,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2023-11-19 07:37:39,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2023-11-19 07:37:39,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:37:39,983 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:37:40,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:40,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:37:40,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:40,051 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:37:40,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:40,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:40,072 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2023-11-19 07:37:40,072 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-11-19 07:37:40,114 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 15 states and 22 transitions. Complement of second has 6 states. [2023-11-19 07:37:40,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-19 07:37:40,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-11-19 07:37:40,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2023-11-19 07:37:40,118 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2023-11-19 07:37:40,118 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:37:40,118 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:37:40,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:40,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:37:40,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:40,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:40,188 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:37:40,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:40,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:40,202 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-11-19 07:37:40,203 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-11-19 07:37:40,270 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 25 transitions. Complement of second has 5 states. [2023-11-19 07:37:40,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-19 07:37:40,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:40,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-11-19 07:37:40,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-19 07:37:40,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2023-11-19 07:37:40,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:37:40,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-19 07:37:40,295 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:37:40,295 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 4 letters. [2023-11-19 07:37:40,296 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:37:40,296 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 25 transitions. [2023-11-19 07:37:40,298 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:37:40,299 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 15 states and 21 transitions. [2023-11-19 07:37:40,299 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-19 07:37:40,299 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-11-19 07:37:40,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 21 transitions. [2023-11-19 07:37:40,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:37:40,299 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 21 transitions. [2023-11-19 07:37:40,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 21 transitions. [2023-11-19 07:37:40,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 7. [2023-11-19 07:37:40,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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) [2023-11-19 07:37:40,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2023-11-19 07:37:40,302 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2023-11-19 07:37:40,302 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2023-11-19 07:37:40,302 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-19 07:37:40,302 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2023-11-19 07:37:40,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-11-19 07:37:40,304 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:37:40,304 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:37:40,305 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:37:40,305 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-19 07:37:40,305 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:37:40,305 INFO L748 eck$LassoCheckResult]: Stem: 353#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 354#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;havoc main_#t~nondet0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 348#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 349#L20-2 [2023-11-19 07:37:40,305 INFO L750 eck$LassoCheckResult]: Loop: 349#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 350#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 349#L20-2 [2023-11-19 07:37:40,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:40,306 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 2 times [2023-11-19 07:37:40,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:40,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244164117] [2023-11-19 07:37:40,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:40,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:40,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:40,312 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:37:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:40,315 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:37:40,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:40,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1414, now seen corresponding path program 1 times [2023-11-19 07:37:40,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:40,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871052543] [2023-11-19 07:37:40,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:40,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:40,323 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:37:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:40,327 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:37:40,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:40,328 INFO L85 PathProgramCache]: Analyzing trace with hash 28693991, now seen corresponding path program 3 times [2023-11-19 07:37:40,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:40,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299396187] [2023-11-19 07:37:40,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:40,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:40,334 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:37:40,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:40,339 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:37:40,371 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:37:40,371 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:37:40,371 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:37:40,371 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:37:40,371 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:37:40,371 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:40,372 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:37:40,372 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:37:40,372 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration4_Lasso [2023-11-19 07:37:40,372 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:37:40,372 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:37:40,373 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:40,376 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:40,379 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:40,381 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:40,383 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:40,386 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:40,455 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:37:40,456 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:37:40,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:40,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:40,457 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:40,463 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:37:40,463 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:40,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-19 07:37:40,484 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:37:40,485 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:37:40,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-11-19 07:37:40,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:40,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:40,500 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:40,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-19 07:37:40,503 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:37:40,503 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:40,523 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:37:40,523 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:37:40,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-11-19 07:37:40,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:40,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:40,540 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:40,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-19 07:37:40,542 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:37:40,542 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:40,553 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:37:40,553 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:37:40,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:40,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:40,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:40,571 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:40,575 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:37:40,575 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:40,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-19 07:37:40,587 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:37:40,587 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:37:40,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:40,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:40,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:40,607 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:40,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-19 07:37:40,608 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:37:40,608 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:40,644 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:37:40,644 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:37:40,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-11-19 07:37:40,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:40,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:40,663 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:40,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-19 07:37:40,665 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:37:40,665 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:40,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:40,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:40,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:40,712 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:40,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-19 07:37:40,715 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:37:40,715 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:40,892 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:37:40,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:40,902 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:37:40,902 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:37:40,902 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:37:40,902 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:37:40,902 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:37:40,902 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:40,902 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:37:40,902 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:37:40,902 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration4_Lasso [2023-11-19 07:37:40,902 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:37:40,903 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:37:40,904 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:40,907 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:40,911 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:40,922 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:40,924 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:40,929 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:40,998 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:37:40,998 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:37:40,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:40,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:41,001 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:41,009 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 [2023-11-19 07:37:41,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:37:41,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:37:41,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:37:41,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:37:41,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:37:41,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:37:41,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:37:41,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-19 07:37:41,036 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:37:41,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:41,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:41,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:41,057 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:41,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-19 07:37:41,058 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 [2023-11-19 07:37:41,069 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:37:41,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:37:41,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:37:41,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:37:41,071 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:37:41,071 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:37:41,082 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:37:41,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:41,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:41,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:41,107 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:41,113 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 [2023-11-19 07:37:41,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:37:41,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:37:41,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:37:41,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:37:41,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-19 07:37:41,129 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:37:41,130 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:37:41,152 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:37:41,160 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-11-19 07:37:41,160 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-19 07:37:41,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:41,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:41,161 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:41,168 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:37:41,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-19 07:37:41,191 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-11-19 07:37:41,191 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:37:41,191 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y2~0#1, ULTIMATE.start_main_~y1~0#1) = 1*ULTIMATE.start_main_~y2~0#1 - 1*ULTIMATE.start_main_~y1~0#1 Supporting invariants [1*ULTIMATE.start_main_~y1~0#1 - 1 >= 0] [2023-11-19 07:37:41,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:41,216 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-11-19 07:37:41,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:41,251 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:37:41,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:41,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:41,263 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:37:41,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:41,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:41,293 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-19 07:37:41,293 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-19 07:37:41,340 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 13 states and 19 transitions. Complement of second has 5 states. [2023-11-19 07:37:41,341 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 [2023-11-19 07:37:41,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-19 07:37:41,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2023-11-19 07:37:41,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2023-11-19 07:37:41,344 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:37:41,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2023-11-19 07:37:41,344 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:37:41,345 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 4 letters. [2023-11-19 07:37:41,345 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:37:41,345 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 19 transitions. [2023-11-19 07:37:41,348 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:37:41,349 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 11 states and 15 transitions. [2023-11-19 07:37:41,349 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-19 07:37:41,350 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-19 07:37:41,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2023-11-19 07:37:41,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:37:41,350 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 15 transitions. [2023-11-19 07:37:41,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2023-11-19 07:37:41,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2023-11-19 07:37:41,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 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) [2023-11-19 07:37:41,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 14 transitions. [2023-11-19 07:37:41,352 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2023-11-19 07:37:41,352 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2023-11-19 07:37:41,353 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-19 07:37:41,353 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 14 transitions. [2023-11-19 07:37:41,356 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:37:41,356 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:37:41,356 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:37:41,358 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2023-11-19 07:37:41,358 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:37:41,359 INFO L748 eck$LassoCheckResult]: Stem: 417#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 418#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;havoc main_#t~nondet0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 412#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 413#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 415#L20 assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 421#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 419#L20 [2023-11-19 07:37:41,359 INFO L750 eck$LassoCheckResult]: Loop: 419#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 420#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 419#L20 [2023-11-19 07:37:41,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:41,359 INFO L85 PathProgramCache]: Analyzing trace with hash 889513673, now seen corresponding path program 2 times [2023-11-19 07:37:41,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:41,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619398857] [2023-11-19 07:37:41,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:41,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:41,382 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:37:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:41,391 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:37:41,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:41,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1564, now seen corresponding path program 2 times [2023-11-19 07:37:41,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:41,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264813761] [2023-11-19 07:37:41,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:41,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:41,407 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:37:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:41,425 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:37:41,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:41,426 INFO L85 PathProgramCache]: Analyzing trace with hash 124148452, now seen corresponding path program 3 times [2023-11-19 07:37:41,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:41,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708196358] [2023-11-19 07:37:41,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:41,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:41,432 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:37:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:41,443 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:37:41,500 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:37:41,500 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:37:41,501 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:37:41,501 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:37:41,501 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:37:41,501 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:41,501 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:37:41,501 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:37:41,501 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration5_Lasso [2023-11-19 07:37:41,502 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:37:41,502 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:37:41,503 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:41,506 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:41,509 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:41,511 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:41,524 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:41,527 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:41,620 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:37:41,620 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:37:41,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:41,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:41,625 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:41,627 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:37:41,627 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:41,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-19 07:37:41,649 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:37:41,649 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:37:41,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:41,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:41,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:41,670 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:41,672 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:37:41,672 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:41,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-19 07:37:41,694 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:37:41,694 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:37:41,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:41,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:41,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:41,719 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:41,721 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:37:41,721 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:41,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-19 07:37:41,740 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:37:41,740 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:37:41,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:41,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:41,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:41,779 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:41,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-19 07:37:41,781 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:37:41,781 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:41,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2023-11-19 07:37:41,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:41,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:41,834 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:41,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-19 07:37:41,837 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:37:41,838 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:42,069 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:37:42,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:42,073 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:37:42,073 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:37:42,073 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:37:42,073 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:37:42,073 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:37:42,074 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:42,074 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:37:42,074 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:37:42,074 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration5_Lasso [2023-11-19 07:37:42,074 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:37:42,074 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:37:42,075 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:42,078 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:42,081 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:42,089 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:42,093 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:42,095 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:42,200 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:37:42,200 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:37:42,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:42,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:42,202 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:42,205 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 [2023-11-19 07:37:42,217 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:37:42,217 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:37:42,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:37:42,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:37:42,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:37:42,218 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:37:42,218 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:37:42,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-19 07:37:42,231 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:37:42,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:42,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:42,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:42,255 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:42,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-19 07:37:42,259 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 [2023-11-19 07:37:42,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:37:42,270 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:37:42,270 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:37:42,270 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:37:42,271 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:37:42,272 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:37:42,296 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:37:42,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:42,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:42,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:42,322 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:42,325 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 [2023-11-19 07:37:42,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-19 07:37:42,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:37:42,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:37:42,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:37:42,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:37:42,339 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:37:42,339 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:37:42,347 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:37:42,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2023-11-19 07:37:42,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:42,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:42,368 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:42,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-11-19 07:37:42,369 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 [2023-11-19 07:37:42,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:37:42,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:37:42,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:37:42,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:37:42,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:37:42,380 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:37:42,380 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:37:42,387 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:37:42,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2023-11-19 07:37:42,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:42,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:42,403 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:42,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-19 07:37:42,404 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 [2023-11-19 07:37:42,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:37:42,414 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:37:42,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:37:42,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:37:42,414 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:37:42,415 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:37:42,415 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:37:42,416 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:37:42,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2023-11-19 07:37:42,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:42,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:42,428 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:42,432 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 [2023-11-19 07:37:42,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-19 07:37:42,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:37:42,443 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2023-11-19 07:37:42,443 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-19 07:37:42,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:37:42,452 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2023-11-19 07:37:42,452 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2023-11-19 07:37:42,476 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:37:42,500 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2023-11-19 07:37:42,500 INFO L444 ModelExtractionUtils]: 5 out of 16 variables were initially zero. Simplification set additionally 5 variables to zero. [2023-11-19 07:37:42,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:42,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:42,505 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:42,507 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:37:42,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-19 07:37:42,530 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 4. [2023-11-19 07:37:42,530 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:37:42,530 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y1~0#1, ULTIMATE.start_main_~y2~0#1) = -2*ULTIMATE.start_main_~y1~0#1 + 3*ULTIMATE.start_main_~y2~0#1 Supporting invariants [1*ULTIMATE.start_main_~y2~0#1 >= 0, 1*ULTIMATE.start_main_~y1~0#1 - 1 >= 0] [2023-11-19 07:37:42,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:42,550 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2023-11-19 07:37:42,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:37:42,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:42,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,612 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:37:42,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:42,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:42,642 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2023-11-19 07:37:42,642 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-19 07:37:42,672 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 15 states and 19 transitions. Complement of second has 6 states. [2023-11-19 07:37:42,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-19 07:37:42,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-19 07:37:42,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2023-11-19 07:37:42,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-19 07:37:42,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:37:42,674 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:37:42,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:37:42,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:42,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,724 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:37:42,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:42,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:42,754 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2023-11-19 07:37:42,754 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-19 07:37:42,797 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 12 states and 16 transitions. Complement of second has 6 states. [2023-11-19 07:37:42,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-19 07:37:42,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-19 07:37:42,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2023-11-19 07:37:42,801 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-19 07:37:42,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:37:42,801 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:37:42,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:37:42,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:42,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,860 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:37:42,861 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:42,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:42,890 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2023-11-19 07:37:42,890 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-19 07:37:42,924 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 18 states and 22 transitions. Complement of second has 5 states. [2023-11-19 07:37:42,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-19 07:37:42,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-19 07:37:42,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2023-11-19 07:37:42,927 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-19 07:37:42,929 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:37:42,929 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 8 letters. Loop has 2 letters. [2023-11-19 07:37:42,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:37:42,930 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-19 07:37:42,931 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:37:42,932 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2023-11-19 07:37:42,933 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-19 07:37:42,934 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 14 states and 18 transitions. [2023-11-19 07:37:42,935 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-19 07:37:42,935 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-11-19 07:37:42,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 18 transitions. [2023-11-19 07:37:42,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:37:42,935 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 18 transitions. [2023-11-19 07:37:42,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 18 transitions. [2023-11-19 07:37:42,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 9. [2023-11-19 07:37:42,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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) [2023-11-19 07:37:42,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2023-11-19 07:37:42,938 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-19 07:37:42,938 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-19 07:37:42,938 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-19 07:37:42,938 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2023-11-19 07:37:42,939 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-19 07:37:42,939 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:37:42,939 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:37:42,940 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2023-11-19 07:37:42,940 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-11-19 07:37:42,941 INFO L748 eck$LassoCheckResult]: Stem: 596#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 597#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;havoc main_#t~nondet0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 591#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 592#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 594#L20 assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 599#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 598#L20 [2023-11-19 07:37:42,941 INFO L750 eck$LassoCheckResult]: Loop: 598#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 595#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 594#L20 assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 599#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 598#L20 [2023-11-19 07:37:42,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:42,941 INFO L85 PathProgramCache]: Analyzing trace with hash 889513673, now seen corresponding path program 3 times [2023-11-19 07:37:42,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:42,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119777365] [2023-11-19 07:37:42,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:42,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:42,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:42,959 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:37:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:42,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:37:42,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:42,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1503545, now seen corresponding path program 1 times [2023-11-19 07:37:42,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:42,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071911358] [2023-11-19 07:37:42,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:42,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:42,986 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:37:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:42,992 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:37:42,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:42,995 INFO L85 PathProgramCache]: Analyzing trace with hash -952421375, now seen corresponding path program 4 times [2023-11-19 07:37:42,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:42,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065976576] [2023-11-19 07:37:42,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:42,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:43,005 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:37:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:37:43,014 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:37:43,057 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:37:43,057 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:37:43,057 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:37:43,057 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:37:43,057 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:37:43,057 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:43,058 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:37:43,058 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:37:43,058 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration6_Loop [2023-11-19 07:37:43,058 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:37:43,058 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:37:43,059 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:43,064 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:43,067 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:43,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:43,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:43,231 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:37:43,231 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:37:43,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:43,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:43,232 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:43,238 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:37:43,238 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:43,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-19 07:37:43,259 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:37:43,259 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:37:43,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2023-11-19 07:37:43,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:43,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:43,276 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:43,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-19 07:37:43,278 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:37:43,278 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:43,296 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:37:43,296 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:37:43,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:43,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:43,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:43,309 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:43,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-19 07:37:43,311 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:37:43,311 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:43,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:43,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:43,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:43,358 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:43,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-11-19 07:37:43,360 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:37:43,360 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:37:43,788 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:37:43,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2023-11-19 07:37:43,792 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:37:43,792 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:37:43,792 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:37:43,792 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:37:43,793 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:37:43,793 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:43,793 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:37:43,793 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:37:43,793 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration6_Loop [2023-11-19 07:37:43,793 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:37:43,793 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:37:43,794 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:43,798 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:43,809 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:37:43,914 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:37:43,914 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:37:43,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:43,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:43,919 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:43,921 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 [2023-11-19 07:37:43,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:37:43,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:37:43,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:37:43,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:37:43,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-11-19 07:37:43,937 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:37:43,938 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:37:43,956 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:37:43,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:43,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:43,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:43,976 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:43,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-11-19 07:37:43,979 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 [2023-11-19 07:37:43,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:37:43,990 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:37:43,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:37:43,990 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-19 07:37:43,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:37:43,992 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-19 07:37:43,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:37:44,004 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:37:44,008 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:37:44,009 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-19 07:37:44,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:37:44,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:44,010 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:44,017 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:37:44,017 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:37:44,017 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:37:44,017 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y2~0#1) = 1*ULTIMATE.start_main_~y2~0#1 Supporting invariants [] [2023-11-19 07:37:44,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2023-11-19 07:37:44,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2023-11-19 07:37:44,035 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:37:44,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:44,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:37:44,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:44,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:44,070 WARN L260 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:37:44,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:44,116 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:44,116 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-19 07:37:44,117 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 4 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) [2023-11-19 07:37:44,141 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 4. 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 28 states and 42 transitions. Complement of second has 6 states. [2023-11-19 07:37:44,142 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 [2023-11-19 07:37:44,143 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) [2023-11-19 07:37:44,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2023-11-19 07:37:44,144 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-19 07:37:44,145 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:37:44,145 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 10 letters. Loop has 4 letters. [2023-11-19 07:37:44,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:37:44,147 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 6 letters. Loop has 8 letters. [2023-11-19 07:37:44,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:37:44,148 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 42 transitions. [2023-11-19 07:37:44,149 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:37:44,149 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2023-11-19 07:37:44,150 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 07:37:44,150 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 07:37:44,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 07:37:44,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:44,150 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:37:44,150 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:37:44,150 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:37:44,151 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-19 07:37:44,151 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:37:44,151 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:37:44,151 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-19 07:37:44,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:37:44 BoogieIcfgContainer [2023-11-19 07:37:44,158 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:37:44,159 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:37:44,159 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:37:44,159 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:37:44,159 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:36" (3/4) ... [2023-11-19 07:37:44,161 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:37:44,162 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:37:44,162 INFO L158 Benchmark]: Toolchain (without parser) took 8483.98ms. Allocated memory is still 207.6MB. Free memory was 161.1MB in the beginning and 144.9MB in the end (delta: 16.2MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2023-11-19 07:37:44,163 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 140.5MB. Free memory is still 84.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:37:44,163 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.26ms. Allocated memory is still 207.6MB. Free memory was 161.1MB in the beginning and 151.6MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 07:37:44,163 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.93ms. Allocated memory is still 207.6MB. Free memory was 151.6MB in the beginning and 150.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:37:44,164 INFO L158 Benchmark]: Boogie Preprocessor took 22.14ms. Allocated memory is still 207.6MB. Free memory was 150.1MB in the beginning and 149.2MB in the end (delta: 920.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:37:44,164 INFO L158 Benchmark]: RCFGBuilder took 361.43ms. Allocated memory is still 207.6MB. Free memory was 149.2MB in the beginning and 140.2MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:37:44,165 INFO L158 Benchmark]: BuchiAutomizer took 7841.91ms. Allocated memory is still 207.6MB. Free memory was 140.2MB in the beginning and 146.0MB in the end (delta: -5.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:37:44,165 INFO L158 Benchmark]: Witness Printer took 3.18ms. Allocated memory is still 207.6MB. Free memory was 146.0MB in the beginning and 144.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:37:44,167 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56ms. Allocated memory is still 140.5MB. Free memory is still 84.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 214.26ms. Allocated memory is still 207.6MB. Free memory was 161.1MB in the beginning and 151.6MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.93ms. Allocated memory is still 207.6MB. Free memory was 151.6MB in the beginning and 150.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.14ms. Allocated memory is still 207.6MB. Free memory was 150.1MB in the beginning and 149.2MB in the end (delta: 920.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 361.43ms. Allocated memory is still 207.6MB. Free memory was 149.2MB in the beginning and 140.2MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 7841.91ms. Allocated memory is still 207.6MB. Free memory was 140.2MB in the beginning and 146.0MB in the end (delta: -5.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.18ms. Allocated memory is still 207.6MB. Free memory was 146.0MB in the beginning and 144.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (0 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function y1 and consists of 4 locations. One deterministic module has affine ranking function (y1 + (-1 * y2)) and consists of 4 locations. One deterministic module has affine ranking function (y2 + (-1 * y1)) and consists of 3 locations. One deterministic module has affine ranking function y2 and consists of 4 locations. One nondeterministic module has affine ranking function (y1 + (-1 * y2)) and consists of 4 locations. One nondeterministic module has affine ranking function ((-2 * y1) + (3 * y2)) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.7s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 6.0s. Construction of modules took 0.1s. Büchi inclusion checks took 1.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 14 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/2 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 63 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 62 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 101 IncrementalHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 41 mSDtfsCounter, 101 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso5 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax155 hnf100 lsp64 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq149 hnf96 smp86 dnf120 smp96 tf100 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 102ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 2 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 20 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 13 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-19 07:37:44,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:44,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3717b7a6-73b9-467a-98fc-2b611a3a3767/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE