./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/McCarthyIterative.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_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/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_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/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_b46f139c-d53f-4267-9e3e-8531ff2094d1/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 faa806fd1be90697a522dfc0988145f6572d5d87fac98caf7aa5fe5b66e6095c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:40:09,324 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:40:09,393 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-19 07:40:09,399 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:40:09,400 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:40:09,425 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:40:09,426 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:40:09,426 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:40:09,427 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:40:09,428 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:40:09,428 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:40:09,429 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:40:09,430 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:40:09,430 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:40:09,431 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:40:09,431 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:40:09,432 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:40:09,433 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:40:09,433 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:40:09,434 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:40:09,434 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:40:09,435 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:40:09,436 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:40:09,436 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:40:09,437 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:40:09,438 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:40:09,438 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:40:09,439 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:40:09,439 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:40:09,440 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:40:09,440 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:40:09,441 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:40:09,442 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:40:09,442 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_b46f139c-d53f-4267-9e3e-8531ff2094d1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> faa806fd1be90697a522dfc0988145f6572d5d87fac98caf7aa5fe5b66e6095c [2023-11-19 07:40:09,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:40:09,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:40:09,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:40:09,713 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:40:09,713 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:40:09,715 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c [2023-11-19 07:40:12,726 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:40:13,010 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:40:13,011 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c [2023-11-19 07:40:13,019 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/data/d81bba67f/1b4d4015896c4d36885f62625ce99bc6/FLAGa831ddf8e [2023-11-19 07:40:13,039 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/data/d81bba67f/1b4d4015896c4d36885f62625ce99bc6 [2023-11-19 07:40:13,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:40:13,050 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:40:13,055 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:40:13,055 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:40:13,061 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:40:13,061 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:40:13" (1/1) ... [2023-11-19 07:40:13,064 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42e42b5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:13, skipping insertion in model container [2023-11-19 07:40:13,064 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:40:13" (1/1) ... [2023-11-19 07:40:13,088 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:40:13,272 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:40:13,278 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:40:13,290 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:40:13,302 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:40:13,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:13 WrapperNode [2023-11-19 07:40:13,302 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:40:13,303 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:40:13,303 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:40:13,303 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:40:13,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:13" (1/1) ... [2023-11-19 07:40:13,315 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:13" (1/1) ... [2023-11-19 07:40:13,333 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2023-11-19 07:40:13,333 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:40:13,334 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:40:13,334 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:40:13,334 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:40:13,344 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:13" (1/1) ... [2023-11-19 07:40:13,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:13" (1/1) ... [2023-11-19 07:40:13,345 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:13" (1/1) ... [2023-11-19 07:40:13,345 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:13" (1/1) ... [2023-11-19 07:40:13,347 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:13" (1/1) ... [2023-11-19 07:40:13,352 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:13" (1/1) ... [2023-11-19 07:40:13,353 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:13" (1/1) ... [2023-11-19 07:40:13,354 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:13" (1/1) ... [2023-11-19 07:40:13,355 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:40:13,356 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:40:13,357 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:40:13,357 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:40:13,358 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:13" (1/1) ... [2023-11-19 07:40:13,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:13,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:13,388 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:13,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:40:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:40:13,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:40:13,528 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:40:13,531 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:40:13,641 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:40:13,654 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:40:13,655 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:40:13,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:13 BoogieIcfgContainer [2023-11-19 07:40:13,660 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:40:13,662 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:40:13,662 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:40:13,668 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:40:13,669 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:40:13,669 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:40:13" (1/3) ... [2023-11-19 07:40:13,671 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48c0fdd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:40:13, skipping insertion in model container [2023-11-19 07:40:13,671 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:40:13,672 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:13" (2/3) ... [2023-11-19 07:40:13,674 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48c0fdd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:40:13, skipping insertion in model container [2023-11-19 07:40:13,674 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:40:13,675 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:13" (3/3) ... [2023-11-19 07:40:13,677 INFO L332 chiAutomizerObserver]: Analyzing ICFG McCarthyIterative.c [2023-11-19 07:40:13,762 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:40:13,762 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:40:13,763 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:40:13,763 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:40:13,763 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:40:13,763 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:40:13,765 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:40:13,766 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:40:13,771 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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 07:40:13,794 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:40:13,795 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:40:13,795 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:40:13,801 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:40:13,801 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:40:13,802 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:40:13,803 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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 07:40:13,804 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:40:13,805 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:40:13,805 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:40:13,806 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:40:13,806 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:40:13,815 INFO L748 eck$LassoCheckResult]: Stem: 5#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 2#L12-2true [2023-11-19 07:40:13,816 INFO L750 eck$LassoCheckResult]: Loop: 2#L12-2true assume !!(main_~c~0#1 > 0); 8#L12true assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2#L12-2true [2023-11-19 07:40:13,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:13,824 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-19 07:40:13,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:13,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526063892] [2023-11-19 07:40:13,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:13,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:13,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:13,931 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:13,954 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:13,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:13,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2023-11-19 07:40:13,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:13,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778592120] [2023-11-19 07:40:13,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:13,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:13,974 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:13,987 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:13,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:13,989 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2023-11-19 07:40:13,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:13,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459756659] [2023-11-19 07:40:13,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:13,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:14,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:14,001 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:14,008 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:14,107 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:40:14,108 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:40:14,108 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:40:14,108 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:40:14,108 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:40:14,109 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:14,109 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:40:14,109 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:40:14,109 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration1_Loop [2023-11-19 07:40:14,109 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:40:14,110 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:40:14,133 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 07:40:14,146 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 07:40:14,151 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 07:40:14,160 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 07:40:14,234 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:40:14,235 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:40:14,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:14,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:14,241 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:14,252 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:40:14,253 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:14,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-19 07:40:14,280 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:40:14,280 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:40:14,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:14,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:14,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:14,308 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:14,317 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:40:14,317 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:14,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-19 07:40:14,347 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:40:14,348 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 07:40:14,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:14,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:14,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:14,372 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:14,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-19 07:40:14,376 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:40:14,376 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:14,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:14,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:14,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:14,427 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:14,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-19 07:40:14,432 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:40:14,432 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:14,465 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:40:14,465 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=1} Honda state: {ULTIMATE.start_main_~c~0#1=1} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=0}, {ULTIMATE.start_main_~c~0#1=1}, {ULTIMATE.start_main_~c~0#1=0}] Lambdas: [0, 1, 5] Nus: [0, 0] [2023-11-19 07:40:14,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:14,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:14,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:14,492 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:14,500 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:40:14,501 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:14,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-19 07:40:14,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:14,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:14,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:14,557 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:14,564 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:40:14,565 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:14,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-19 07:40:14,615 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:40:14,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:14,619 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:40:14,619 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:40:14,619 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:40:14,619 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:40:14,619 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:40:14,620 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:14,620 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:40:14,620 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:40:14,620 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration1_Loop [2023-11-19 07:40:14,620 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:40:14,620 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:40:14,622 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 07:40:14,633 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 07:40:14,639 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 07:40:14,652 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 07:40:14,755 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:40:14,760 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:40:14,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:14,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:14,766 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:14,772 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 07:40:14,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-19 07:40:14,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:40:14,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:40:14,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:40:14,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:40:14,791 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:40:14,791 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:40:14,805 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:40:14,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:14,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:14,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:14,830 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:14,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-19 07:40:14,851 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 07:40:14,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:40:14,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:40:14,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:40:14,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:40:14,867 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:40:14,867 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:40:14,882 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:40:14,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:14,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:14,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:14,902 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:14,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-19 07:40:14,905 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 07:40:14,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:40:14,915 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:40:14,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:40:14,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:40:14,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:40:14,918 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:40:14,918 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:40:14,927 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:40:14,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:14,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:14,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:14,948 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:14,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-19 07:40:14,952 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 07:40:14,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:40:14,962 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:40:14,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:40:14,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:40:14,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:40:14,966 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:40:14,966 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:40:14,983 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:40:14,991 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:40:14,991 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:40:14,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:14,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:15,029 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:15,035 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:40:15,035 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:40:15,036 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:40:15,036 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 211 Supporting invariants [] [2023-11-19 07:40:15,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-19 07:40:15,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:15,063 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:40:15,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:15,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:40:15,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:15,114 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:40:15,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:15,119 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 07:40:15,152 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 07:40:15,154 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 07:40:15,194 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 28 transitions. Complement of second has 6 states. [2023-11-19 07:40:15,196 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 07:40:15,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 07:40:15,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2023-11-19 07:40:15,204 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 2 letters. [2023-11-19 07:40:15,204 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:15,204 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-19 07:40:15,205 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:15,205 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-19 07:40:15,205 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:15,206 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2023-11-19 07:40:15,209 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:40:15,212 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions. [2023-11-19 07:40:15,213 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-19 07:40:15,214 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-19 07:40:15,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2023-11-19 07:40:15,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:40:15,215 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-19 07:40:15,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2023-11-19 07:40:15,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-11-19 07:40:15,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:15,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-11-19 07:40:15,238 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-19 07:40:15,238 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-19 07:40:15,238 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 07:40:15,238 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2023-11-19 07:40:15,239 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:40:15,239 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:40:15,239 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:40:15,240 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-19 07:40:15,240 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:40:15,240 INFO L748 eck$LassoCheckResult]: Stem: 68#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 69#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 70#L12-2 assume !!(main_~c~0#1 > 0); 67#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 63#L12-2 [2023-11-19 07:40:15,240 INFO L750 eck$LassoCheckResult]: Loop: 63#L12-2 assume !!(main_~c~0#1 > 0); 64#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 63#L12-2 [2023-11-19 07:40:15,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:15,241 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2023-11-19 07:40:15,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:15,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020487841] [2023-11-19 07:40:15,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:15,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:15,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:15,247 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:15,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:15,252 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:15,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:15,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2023-11-19 07:40:15,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:15,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615670560] [2023-11-19 07:40:15,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:15,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:15,260 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:15,265 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:15,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:15,265 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2023-11-19 07:40:15,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:15,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680815360] [2023-11-19 07:40:15,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:15,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:15,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:15,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-11-19 07:40:15,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:15,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:15,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680815360] [2023-11-19 07:40:15,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680815360] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:15,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:15,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:40:15,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948751386] [2023-11-19 07:40:15,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:15,485 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:40:15,486 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:40:15,486 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:40:15,486 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:40:15,486 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:40:15,486 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:15,486 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:40:15,486 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:40:15,487 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration2_Loop [2023-11-19 07:40:15,487 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:40:15,487 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:40:15,489 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 07:40:15,497 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 07:40:15,503 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 07:40:15,511 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 07:40:15,572 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:40:15,572 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:40:15,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:15,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:15,576 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:15,585 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:40:15,585 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:15,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-19 07:40:15,612 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:40:15,612 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 07:40:15,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:15,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:15,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:15,637 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:15,648 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:40:15,648 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:15,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-19 07:40:15,675 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:40:15,676 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:40:15,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:15,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:15,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:15,702 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:15,706 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:40:15,706 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:15,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-19 07:40:15,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:15,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:15,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:15,760 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:15,767 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:40:15,767 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:15,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-19 07:40:15,802 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:40:15,802 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=1} Honda state: {ULTIMATE.start_main_~c~0#1=1} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=0}, {ULTIMATE.start_main_~c~0#1=1}, {ULTIMATE.start_main_~c~0#1=0}] Lambdas: [0, 1, 5] Nus: [0, 0] [2023-11-19 07:40:15,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:15,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:15,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:15,827 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:15,832 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:40:15,833 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:15,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-19 07:40:15,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:15,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:15,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:15,869 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:15,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-19 07:40:15,871 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:40:15,871 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:15,917 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:40:15,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:15,926 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:40:15,926 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:40:15,926 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:40:15,926 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:40:15,926 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:40:15,927 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:15,927 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:40:15,927 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:40:15,927 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration2_Loop [2023-11-19 07:40:15,927 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:40:15,927 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:40:15,929 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 07:40:15,933 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 07:40:15,937 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 07:40:15,943 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 07:40:16,005 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:40:16,006 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:40:16,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:16,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:16,008 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:16,021 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 07:40:16,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:40:16,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:40:16,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:40:16,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:40:16,041 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:40:16,041 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:40:16,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-19 07:40:16,055 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:40:16,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:16,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:16,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:16,081 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:16,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-19 07:40:16,090 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 07:40:16,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:40:16,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:40:16,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:40:16,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:40:16,106 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:40:16,106 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:40:16,118 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:40:16,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:16,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:16,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:16,145 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:16,153 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 07:40:16,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:40:16,165 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:40:16,166 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:40:16,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:40:16,166 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:40:16,167 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:40:16,167 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:40:16,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-19 07:40:16,177 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:40:16,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:16,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:16,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:16,191 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:16,193 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 07:40:16,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-19 07:40:16,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:40:16,205 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:40:16,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:40:16,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:40:16,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:40:16,206 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:40:16,206 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:40:16,216 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:40:16,219 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:40:16,220 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:40:16,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:16,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:16,224 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:16,226 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:40:16,226 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:40:16,226 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:40:16,226 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 211 Supporting invariants [] [2023-11-19 07:40:16,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-19 07:40:16,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:16,252 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:40:16,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:16,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:40:16,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:16,306 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:40:16,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:16,311 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 07:40:16,312 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 07:40:16,312 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 07:40:16,326 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 17 transitions. Complement of second has 5 states. [2023-11-19 07:40:16,326 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 07:40:16,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 07:40:16,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-11-19 07:40:16,329 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-19 07:40:16,329 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:16,329 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-19 07:40:16,329 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:16,329 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2023-11-19 07:40:16,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:16,330 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2023-11-19 07:40:16,331 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:40:16,331 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2023-11-19 07:40:16,331 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-19 07:40:16,332 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-19 07:40:16,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2023-11-19 07:40:16,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:40:16,332 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-11-19 07:40:16,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2023-11-19 07:40:16,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-19 07:40:16,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 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 07:40:16,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2023-11-19 07:40:16,334 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-11-19 07:40:16,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:16,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:40:16,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:40:16,338 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 07:40:16,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:16,354 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2023-11-19 07:40:16,354 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2023-11-19 07:40:16,355 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:40:16,356 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 17 transitions. [2023-11-19 07:40:16,356 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-19 07:40:16,357 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-19 07:40:16,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2023-11-19 07:40:16,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:40:16,357 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2023-11-19 07:40:16,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2023-11-19 07:40:16,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2023-11-19 07:40:16,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 states have internal predecessors, (16), 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 07:40:16,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2023-11-19 07:40:16,360 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2023-11-19 07:40:16,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:40:16,361 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2023-11-19 07:40:16,361 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-19 07:40:16,362 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2023-11-19 07:40:16,362 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:40:16,362 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:40:16,363 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:40:16,363 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2023-11-19 07:40:16,363 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:40:16,364 INFO L748 eck$LassoCheckResult]: Stem: 154#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 155#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 149#L12-2 assume !!(main_~c~0#1 > 0); 150#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 160#L12-2 assume !!(main_~c~0#1 > 0); 156#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 157#L12-2 assume !!(main_~c~0#1 > 0); 152#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 159#L12-2 [2023-11-19 07:40:16,364 INFO L750 eck$LassoCheckResult]: Loop: 159#L12-2 assume !!(main_~c~0#1 > 0); 158#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 159#L12-2 [2023-11-19 07:40:16,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:16,364 INFO L85 PathProgramCache]: Analyzing trace with hash 297591406, now seen corresponding path program 2 times [2023-11-19 07:40:16,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:16,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134562065] [2023-11-19 07:40:16,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:16,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:16,375 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:16,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:16,383 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:16,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:16,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 3 times [2023-11-19 07:40:16,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:16,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253252819] [2023-11-19 07:40:16,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:16,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:16,390 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:16,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:16,394 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:16,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:16,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1777467309, now seen corresponding path program 3 times [2023-11-19 07:40:16,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:16,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457021969] [2023-11-19 07:40:16,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:16,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:16,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:16,480 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:40:16,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:16,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457021969] [2023-11-19 07:40:16,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457021969] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:40:16,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270223622] [2023-11-19 07:40:16,485 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 07:40:16,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:40:16,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:16,488 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:40:16,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-19 07:40:16,536 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-19 07:40:16,536 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:40:16,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:40:16,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:16,595 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:40:16,595 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:40:16,639 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:40:16,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270223622] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:40:16,639 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:40:16,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2023-11-19 07:40:16,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587512253] [2023-11-19 07:40:16,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:40:16,681 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:40:16,681 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:40:16,681 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:40:16,681 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:40:16,681 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:40:16,681 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:16,681 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:40:16,682 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:40:16,682 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration3_Loop [2023-11-19 07:40:16,682 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:40:16,682 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:40:16,686 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 07:40:16,691 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 07:40:16,697 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 07:40:16,704 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 07:40:16,756 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:40:16,756 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:40:16,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:16,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:16,758 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:16,761 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:40:16,761 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:16,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-19 07:40:16,791 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:40:16,791 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:40:16,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:16,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:16,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:16,816 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:16,819 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:40:16,819 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:16,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-19 07:40:16,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:16,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:16,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:16,867 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:16,869 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:40:16,869 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:16,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-19 07:40:16,900 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:40:16,900 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=1} Honda state: {ULTIMATE.start_main_~c~0#1=1} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=0}, {ULTIMATE.start_main_~c~0#1=1}, {ULTIMATE.start_main_~c~0#1=0}] Lambdas: [0, 1, 5] Nus: [0, 0] [2023-11-19 07:40:16,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:16,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:16,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:16,926 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:16,928 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:40:16,928 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:16,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-19 07:40:16,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:16,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:16,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:16,975 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:16,978 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:40:16,978 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:16,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-19 07:40:17,025 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:40:17,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:17,034 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:40:17,034 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:40:17,034 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:40:17,034 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:40:17,034 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:40:17,034 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:17,034 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:40:17,035 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:40:17,035 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration3_Loop [2023-11-19 07:40:17,035 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:40:17,035 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:40:17,036 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 07:40:17,049 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 07:40:17,055 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 07:40:17,065 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 07:40:17,120 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:40:17,120 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:40:17,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:17,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:17,122 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:17,126 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 07:40:17,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:40:17,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:40:17,138 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:40:17,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:40:17,144 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:40:17,145 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:40:17,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-19 07:40:17,161 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:40:17,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:17,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:17,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:17,185 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:17,188 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 07:40:17,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:40:17,200 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:40:17,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:40:17,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:40:17,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:40:17,202 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:40:17,202 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:40:17,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-19 07:40:17,219 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:40:17,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:17,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:17,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:17,242 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:17,245 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 07:40:17,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-19 07:40:17,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:40:17,255 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:40:17,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:40:17,256 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:40:17,256 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:40:17,256 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:40:17,257 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:40:17,267 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:40:17,269 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:40:17,270 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:40:17,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:17,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:17,272 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:17,274 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:40:17,274 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:40:17,274 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:40:17,274 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 211 Supporting invariants [] [2023-11-19 07:40:17,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-19 07:40:17,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2023-11-19 07:40:17,293 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:40:17,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:17,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:40:17,329 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:17,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:17,351 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:40:17,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:17,367 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 07:40:17,368 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 07:40:17,368 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 07:40:17,377 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 14 states and 20 transitions. Complement of second has 5 states. [2023-11-19 07:40:17,387 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 07:40:17,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 07:40:17,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-11-19 07:40:17,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2023-11-19 07:40:17,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:17,389 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:40:17,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:17,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:40:17,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:17,443 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:40:17,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:17,446 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 07:40:17,446 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-19 07:40:17,447 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 07:40:17,461 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 14 states and 20 transitions. Complement of second has 5 states. [2023-11-19 07:40:17,462 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 07:40:17,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 07:40:17,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-11-19 07:40:17,463 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2023-11-19 07:40:17,463 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:17,463 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:40:17,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:17,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:40:17,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:17,500 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:40:17,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:17,503 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 07:40:17,504 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-19 07:40:17,504 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 07:40:17,520 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 16 states and 23 transitions. Complement of second has 4 states. [2023-11-19 07:40:17,521 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 07:40:17,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 07:40:17,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-19 07:40:17,522 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2023-11-19 07:40:17,522 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:17,523 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2023-11-19 07:40:17,523 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:17,523 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2023-11-19 07:40:17,524 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:17,524 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2023-11-19 07:40:17,525 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:40:17,526 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 19 transitions. [2023-11-19 07:40:17,526 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-19 07:40:17,526 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-19 07:40:17,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2023-11-19 07:40:17,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:40:17,526 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2023-11-19 07:40:17,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2023-11-19 07:40:17,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 7. [2023-11-19 07:40:17,528 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 07:40:17,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2023-11-19 07:40:17,528 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2023-11-19 07:40:17,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:17,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:40:17,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:40:17,532 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 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 07:40:17,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:17,550 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2023-11-19 07:40:17,550 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2023-11-19 07:40:17,551 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-19 07:40:17,552 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 15 transitions. [2023-11-19 07:40:17,552 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-19 07:40:17,552 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-11-19 07:40:17,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2023-11-19 07:40:17,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:40:17,553 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2023-11-19 07:40:17,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2023-11-19 07:40:17,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2023-11-19 07:40:17,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 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 07:40:17,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2023-11-19 07:40:17,555 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-19 07:40:17,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:40:17,556 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-19 07:40:17,556 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-19 07:40:17,556 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2023-11-19 07:40:17,557 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-19 07:40:17,557 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:40:17,557 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:40:17,557 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:40:17,558 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-11-19 07:40:17,558 INFO L748 eck$LassoCheckResult]: Stem: 404#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 405#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 399#L12-2 [2023-11-19 07:40:17,558 INFO L750 eck$LassoCheckResult]: Loop: 399#L12-2 assume !!(main_~c~0#1 > 0); 400#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 408#L12-2 assume !!(main_~c~0#1 > 0); 406#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 399#L12-2 [2023-11-19 07:40:17,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:17,559 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-11-19 07:40:17,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:17,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134507946] [2023-11-19 07:40:17,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:17,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:17,563 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:17,565 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:17,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:17,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1266953, now seen corresponding path program 1 times [2023-11-19 07:40:17,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:17,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498591726] [2023-11-19 07:40:17,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:17,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:17,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:17,572 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:17,577 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:17,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:17,578 INFO L85 PathProgramCache]: Analyzing trace with hash 889694155, now seen corresponding path program 4 times [2023-11-19 07:40:17,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:17,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501693480] [2023-11-19 07:40:17,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:17,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:17,584 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:17,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:17,589 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:17,641 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:40:17,642 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:40:17,642 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:40:17,642 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:40:17,642 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:40:17,642 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:17,642 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:40:17,642 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:40:17,642 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration4_Loop [2023-11-19 07:40:17,643 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:40:17,643 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:40:17,644 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 07:40:17,647 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 07:40:17,654 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 07:40:17,657 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 07:40:17,716 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:40:17,716 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:40:17,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:17,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:17,717 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:17,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:17,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-19 07:40:17,740 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:40:17,740 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:17,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:17,779 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:40:17,779 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 07:40:17,791 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2023-11-19 07:40:17,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:17,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:17,792 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:17,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-19 07:40:17,794 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:40:17,794 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:17,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2023-11-19 07:40:17,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:17,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:17,822 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:17,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-19 07:40:17,824 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:40:17,824 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:17,860 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:40:17,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2023-11-19 07:40:17,863 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:40:17,863 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:40:17,863 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:40:17,863 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:40:17,863 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:40:17,863 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:17,863 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:40:17,863 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:40:17,863 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration4_Loop [2023-11-19 07:40:17,863 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:40:17,863 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:40:17,865 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 07:40:17,878 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 07:40:17,881 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 07:40:17,887 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 07:40:17,938 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:40:17,938 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:40:17,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:17,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:17,939 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:17,947 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 07:40:17,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:40:17,959 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:40:17,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:40:17,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:40:17,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:40:17,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-19 07:40:17,961 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:40:17,961 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:40:17,979 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:40:17,982 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:40:17,982 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:40:17,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:17,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:17,983 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:17,985 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:40:17,985 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:40:17,985 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:40:17,986 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 201 Supporting invariants [] [2023-11-19 07:40:17,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-19 07:40:18,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:18,005 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:40:18,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:18,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:18,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:40:18,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:18,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:18,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:40:18,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:18,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:18,078 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 07:40:18,079 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 07:40:18,090 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 21 states and 27 transitions. Complement of second has 5 states. [2023-11-19 07:40:18,090 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 07:40:18,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 07:40:18,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2023-11-19 07:40:18,095 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-19 07:40:18,096 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:18,096 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:40:18,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:18,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:18,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:40:18,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:18,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:18,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:40:18,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:18,157 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:18,158 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-19 07:40:18,158 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 07:40:18,183 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 7 states. [2023-11-19 07:40:18,184 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 07:40:18,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 07:40:18,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2023-11-19 07:40:18,185 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-19 07:40:18,185 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:18,185 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-19 07:40:18,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:18,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 8 letters. [2023-11-19 07:40:18,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:18,186 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2023-11-19 07:40:18,193 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:40:18,194 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 17 states and 22 transitions. [2023-11-19 07:40:18,194 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-19 07:40:18,194 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-19 07:40:18,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2023-11-19 07:40:18,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:40:18,195 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2023-11-19 07:40:18,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2023-11-19 07:40:18,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2023-11-19 07:40:18,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:18,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2023-11-19 07:40:18,198 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2023-11-19 07:40:18,198 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2023-11-19 07:40:18,198 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-19 07:40:18,198 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2023-11-19 07:40:18,199 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:40:18,199 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:40:18,199 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:40:18,201 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 2, 1, 1, 1] [2023-11-19 07:40:18,201 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:40:18,202 INFO L748 eck$LassoCheckResult]: Stem: 522#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 523#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 519#L12-2 assume !!(main_~c~0#1 > 0); 520#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 526#L12-2 assume !!(main_~c~0#1 > 0); 529#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 532#L12-2 assume !!(main_~c~0#1 > 0); 531#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 528#L12-2 assume !!(main_~c~0#1 > 0); 524#L12 [2023-11-19 07:40:18,202 INFO L750 eck$LassoCheckResult]: Loop: 524#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 525#L12-2 assume !!(main_~c~0#1 > 0); 524#L12 [2023-11-19 07:40:18,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:18,202 INFO L85 PathProgramCache]: Analyzing trace with hash 635458587, now seen corresponding path program 5 times [2023-11-19 07:40:18,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:18,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952176621] [2023-11-19 07:40:18,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:18,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:18,222 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:18,234 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:18,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:18,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2023-11-19 07:40:18,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:18,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777188253] [2023-11-19 07:40:18,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:18,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:18,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:18,253 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:18,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:18,257 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:18,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:18,257 INFO L85 PathProgramCache]: Analyzing trace with hash 790346520, now seen corresponding path program 6 times [2023-11-19 07:40:18,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:18,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500514635] [2023-11-19 07:40:18,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:18,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:18,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:18,267 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:18,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:18,280 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:18,310 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:40:18,311 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:40:18,311 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:40:18,311 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:40:18,311 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:40:18,311 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:18,311 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:40:18,311 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:40:18,312 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration5_Loop [2023-11-19 07:40:18,312 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:40:18,312 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:40:18,313 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 07:40:18,319 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 07:40:18,324 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 07:40:18,327 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 07:40:18,370 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:40:18,370 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:40:18,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:18,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:18,371 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:18,373 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:40:18,374 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:18,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-19 07:40:18,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2023-11-19 07:40:18,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:18,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:18,419 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:18,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-19 07:40:18,425 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:40:18,426 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:18,471 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:40:18,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:18,480 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:40:18,480 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:40:18,480 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:40:18,480 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:40:18,480 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:40:18,480 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:18,480 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:40:18,480 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:40:18,480 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration5_Loop [2023-11-19 07:40:18,481 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:40:18,481 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:40:18,482 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 07:40:18,488 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 07:40:18,494 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 07:40:18,497 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 07:40:18,547 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:40:18,547 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:40:18,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:18,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:18,549 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:18,555 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:40:18,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-19 07:40:18,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:40:18,567 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:40:18,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:40:18,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:40:18,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:40:18,568 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:40:18,568 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:40:18,583 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:40:18,597 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:40:18,597 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-19 07:40:18,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:18,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:18,598 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:18,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-11-19 07:40:18,601 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:40:18,602 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:40:18,602 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:40:18,602 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-19 07:40:18,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2023-11-19 07:40:18,621 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:40:18,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:18,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:40:18,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:18,666 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:40:18,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:18,688 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 07:40:18,689 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 07:40:18,690 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 07:40:18,696 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 16 states and 21 transitions. Complement of second has 3 states. [2023-11-19 07:40:18,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-19 07:40:18,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 07:40:18,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-19 07:40:18,697 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-19 07:40:18,698 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:18,698 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:40:18,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:18,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:18,719 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:40:18,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:18,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:18,743 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:40:18,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:18,758 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 07:40:18,759 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-19 07:40:18,759 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 07:40:18,766 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 16 states and 21 transitions. Complement of second has 3 states. [2023-11-19 07:40:18,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-19 07:40:18,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 07:40:18,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-19 07:40:18,767 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-19 07:40:18,767 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:18,767 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:40:18,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:18,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:40:18,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:18,806 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:40:18,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:18,822 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 07:40:18,822 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-19 07:40:18,823 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 07:40:18,832 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 25 states and 30 transitions. Complement of second has 4 states. [2023-11-19 07:40:18,832 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 07:40:18,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 07:40:18,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-11-19 07:40:18,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-19 07:40:18,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:18,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 11 letters. Loop has 2 letters. [2023-11-19 07:40:18,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:18,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-19 07:40:18,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:18,835 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 30 transitions. [2023-11-19 07:40:18,836 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-19 07:40:18,837 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 20 states and 25 transitions. [2023-11-19 07:40:18,837 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-19 07:40:18,837 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-11-19 07:40:18,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 25 transitions. [2023-11-19 07:40:18,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:40:18,838 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 25 transitions. [2023-11-19 07:40:18,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 25 transitions. [2023-11-19 07:40:18,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 16. [2023-11-19 07:40:18,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.3125) internal successors, (21), 15 states have internal predecessors, (21), 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 07:40:18,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2023-11-19 07:40:18,840 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 21 transitions. [2023-11-19 07:40:18,840 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2023-11-19 07:40:18,841 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-19 07:40:18,841 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2023-11-19 07:40:18,841 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-19 07:40:18,841 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:40:18,841 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:40:18,842 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 2, 1, 1, 1] [2023-11-19 07:40:18,842 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-11-19 07:40:18,842 INFO L748 eck$LassoCheckResult]: Stem: 716#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 717#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 713#L12-2 assume !!(main_~c~0#1 > 0); 714#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 728#L12-2 assume !!(main_~c~0#1 > 0); 722#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 726#L12-2 assume !!(main_~c~0#1 > 0); 725#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 721#L12-2 assume !!(main_~c~0#1 > 0); 718#L12 [2023-11-19 07:40:18,842 INFO L750 eck$LassoCheckResult]: Loop: 718#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 719#L12-2 assume !!(main_~c~0#1 > 0); 723#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 724#L12-2 assume !!(main_~c~0#1 > 0); 718#L12 [2023-11-19 07:40:18,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:18,843 INFO L85 PathProgramCache]: Analyzing trace with hash 635458587, now seen corresponding path program 7 times [2023-11-19 07:40:18,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:18,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481265690] [2023-11-19 07:40:18,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:18,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:18,850 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:18,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:18,856 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:18,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:18,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 2 times [2023-11-19 07:40:18,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:18,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281514865] [2023-11-19 07:40:18,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:18,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:18,861 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:18,865 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:18,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:18,866 INFO L85 PathProgramCache]: Analyzing trace with hash -686205165, now seen corresponding path program 8 times [2023-11-19 07:40:18,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:18,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709023560] [2023-11-19 07:40:18,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:18,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:18,874 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:18,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:18,880 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:18,939 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:40:18,939 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:40:18,939 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:40:18,939 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:40:18,940 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:40:18,940 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:18,940 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:40:18,940 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:40:18,940 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration6_Loop [2023-11-19 07:40:18,940 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:40:18,940 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:40:18,942 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 07:40:18,947 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 07:40:18,950 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 07:40:18,954 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 07:40:19,008 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:40:19,008 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:40:19,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:19,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:19,010 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:19,020 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:40:19,020 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:19,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-19 07:40:19,044 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:40:19,044 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=2} Honda state: {ULTIMATE.start_main_~c~0#1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:40:19,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2023-11-19 07:40:19,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:19,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:19,057 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:19,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-19 07:40:19,059 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:40:19,059 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:19,087 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:40:19,088 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 07:40:19,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:19,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:19,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:19,112 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:19,116 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:40:19,116 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:19,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-19 07:40:19,143 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:40:19,144 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 07:40:19,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:19,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:19,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:19,166 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:19,172 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:40:19,172 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:19,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-19 07:40:19,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:19,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:19,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:19,221 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:19,228 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:40:19,228 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:19,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-19 07:40:19,259 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:40:19,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2023-11-19 07:40:19,277 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:40:19,277 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:40:19,277 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:40:19,277 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:40:19,277 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:40:19,277 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:19,278 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:40:19,278 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:40:19,278 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration6_Loop [2023-11-19 07:40:19,278 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:40:19,278 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:40:19,279 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 07:40:19,285 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 07:40:19,288 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 07:40:19,297 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 07:40:19,348 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:40:19,348 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:40:19,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:19,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:19,349 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:19,357 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 07:40:19,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-19 07:40:19,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:40:19,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:40:19,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:40:19,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:40:19,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:40:19,370 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:40:19,370 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:40:19,391 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:40:19,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2023-11-19 07:40:19,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:19,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:19,415 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:19,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-11-19 07:40:19,417 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 07:40:19,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:40:19,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:40:19,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:40:19,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:40:19,430 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:40:19,430 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:40:19,467 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:40:19,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:19,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:19,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:19,487 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:19,492 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 07:40:19,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-11-19 07:40:19,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:40:19,505 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:40:19,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:40:19,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:40:19,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:40:19,506 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:40:19,506 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:40:19,517 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:40:19,522 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:40:19,522 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:40:19,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:19,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:19,524 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:19,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-11-19 07:40:19,525 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:40:19,525 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:40:19,526 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:40:19,526 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 221 Supporting invariants [] [2023-11-19 07:40:19,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2023-11-19 07:40:19,541 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:40:19,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:19,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:40:19,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:19,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:19,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:40:19,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:19,626 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:19,627 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 07:40:19,627 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 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 07:40:19,651 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. 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 27 states and 33 transitions. Complement of second has 7 states. [2023-11-19 07:40:19,652 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 07:40:19,653 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 07:40:19,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-19 07:40:19,653 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-19 07:40:19,653 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:19,654 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:40:19,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:19,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:19,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:40:19,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:19,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:40:19,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:19,721 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:19,722 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-19 07:40:19,722 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 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 07:40:19,754 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. 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 26 states and 33 transitions. Complement of second has 7 states. [2023-11-19 07:40:19,754 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 07:40:19,756 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 07:40:19,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2023-11-19 07:40:19,756 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-19 07:40:19,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:19,756 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:40:19,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:19,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:19,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:40:19,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:19,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:40:19,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:19,831 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:19,832 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-19 07:40:19,832 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 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 07:40:19,853 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. 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 42 states and 53 transitions. Complement of second has 8 states. [2023-11-19 07:40:19,853 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 07:40:19,854 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 07:40:19,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2023-11-19 07:40:19,855 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-19 07:40:19,855 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:19,855 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 13 letters. Loop has 4 letters. [2023-11-19 07:40:19,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:19,856 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 9 letters. Loop has 8 letters. [2023-11-19 07:40:19,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:19,857 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 53 transitions. [2023-11-19 07:40:19,858 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2023-11-19 07:40:19,859 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 31 states and 40 transitions. [2023-11-19 07:40:19,859 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-19 07:40:19,860 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-19 07:40:19,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 40 transitions. [2023-11-19 07:40:19,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:40:19,860 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 40 transitions. [2023-11-19 07:40:19,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 40 transitions. [2023-11-19 07:40:19,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2023-11-19 07:40:19,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 25 states have internal predecessors, (35), 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 07:40:19,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2023-11-19 07:40:19,864 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 35 transitions. [2023-11-19 07:40:19,864 INFO L428 stractBuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2023-11-19 07:40:19,864 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-19 07:40:19,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 35 transitions. [2023-11-19 07:40:19,865 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-19 07:40:19,867 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:40:19,868 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:40:19,870 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 3, 3, 1, 1] [2023-11-19 07:40:19,871 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [5, 3, 2] [2023-11-19 07:40:19,871 INFO L748 eck$LassoCheckResult]: Stem: 988#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 989#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 990#L12-2 assume !!(main_~c~0#1 > 0); 999#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1000#L12-2 assume !!(main_~c~0#1 > 0); 996#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 995#L12-2 assume !!(main_~c~0#1 > 0); 994#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 984#L12-2 assume !!(main_~c~0#1 > 0); 985#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 992#L12-2 assume !!(main_~c~0#1 > 0); 1007#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1006#L12-2 assume !!(main_~c~0#1 > 0); 1004#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1003#L12-2 assume !!(main_~c~0#1 > 0); 1005#L12 [2023-11-19 07:40:19,871 INFO L750 eck$LassoCheckResult]: Loop: 1005#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 986#L12-2 assume !!(main_~c~0#1 > 0); 987#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1008#L12-2 assume !!(main_~c~0#1 > 0); 993#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 992#L12-2 assume !!(main_~c~0#1 > 0); 1007#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1006#L12-2 assume !!(main_~c~0#1 > 0); 1004#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1003#L12-2 assume !!(main_~c~0#1 > 0); 1005#L12 [2023-11-19 07:40:19,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:19,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1981740944, now seen corresponding path program 9 times [2023-11-19 07:40:19,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:19,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443334383] [2023-11-19 07:40:19,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:19,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:19,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:20,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:20,016 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:40:20,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:20,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443334383] [2023-11-19 07:40:20,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443334383] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:20,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:20,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:40:20,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79338587] [2023-11-19 07:40:20,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:20,017 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 07:40:20,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:20,018 INFO L85 PathProgramCache]: Analyzing trace with hash 743859438, now seen corresponding path program 3 times [2023-11-19 07:40:20,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:20,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348508563] [2023-11-19 07:40:20,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:20,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:20,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:20,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:20,025 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:20,030 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:20,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:20,139 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:40:20,139 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:40:20,139 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:40:20,140 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:40:20,140 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:40:20,140 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:20,140 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:40:20,140 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:40:20,140 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration7_Loop [2023-11-19 07:40:20,140 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:40:20,141 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:40:20,142 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 07:40:20,148 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 07:40:20,151 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 07:40:20,160 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 07:40:20,212 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:40:20,213 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:40:20,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:20,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:20,214 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:20,221 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:40:20,221 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:20,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2023-11-19 07:40:20,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:20,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:20,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:20,259 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:20,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2023-11-19 07:40:20,261 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:40:20,261 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:20,275 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:40:20,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2023-11-19 07:40:20,290 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:40:20,290 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:40:20,290 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:40:20,290 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:40:20,290 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:40:20,290 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:20,290 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:40:20,290 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:40:20,290 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration7_Loop [2023-11-19 07:40:20,290 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:40:20,290 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:40:20,292 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 07:40:20,303 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 07:40:20,307 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 07:40:20,309 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 07:40:20,359 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:40:20,359 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:40:20,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:20,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:20,360 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:20,365 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 07:40:20,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2023-11-19 07:40:20,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:40:20,378 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:40:20,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:40:20,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:40:20,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:40:20,379 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:40:20,379 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:40:20,395 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:40:20,398 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-19 07:40:20,398 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:40:20,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:20,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:20,400 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:20,408 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:40:20,408 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:40:20,408 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:40:20,408 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-19 07:40:20,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2023-11-19 07:40:20,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:20,429 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:40:20,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:20,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:20,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:40:20,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:20,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:40:20,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:20,563 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:20,564 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2023-11-19 07:40:20,564 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 07:40:20,573 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 27 states and 36 transitions. Complement of second has 3 states. [2023-11-19 07:40:20,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-19 07:40:20,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 07:40:20,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-19 07:40:20,575 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 15 letters. Loop has 10 letters. [2023-11-19 07:40:20,575 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:20,575 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:40:20,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:20,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:40:20,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:20,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:20,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:40:20,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:20,709 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:20,710 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2023-11-19 07:40:20,710 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 07:40:20,716 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 27 states and 36 transitions. Complement of second has 3 states. [2023-11-19 07:40:20,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-19 07:40:20,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 07:40:20,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-19 07:40:20,719 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 15 letters. Loop has 10 letters. [2023-11-19 07:40:20,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:20,719 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:40:20,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:20,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:20,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:40:20,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:20,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:20,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:40:20,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:20,854 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:20,856 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2023-11-19 07:40:20,856 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 07:40:20,878 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 45 states and 55 transitions. Complement of second has 4 states. [2023-11-19 07:40:20,878 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 07:40:20,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 07:40:20,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-11-19 07:40:20,879 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 15 letters. Loop has 10 letters. [2023-11-19 07:40:20,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:20,881 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:40:20,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:20,906 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:40:20,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:20,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:40:20,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:21,011 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:21,012 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2023-11-19 07:40:21,012 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 07:40:21,085 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 174 states and 230 transitions. Complement of second has 28 states. [2023-11-19 07:40:21,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-19 07:40:21,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 07:40:21,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 15 transitions. [2023-11-19 07:40:21,088 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 15 transitions. Stem has 15 letters. Loop has 10 letters. [2023-11-19 07:40:21,089 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:21,091 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:40:21,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:21,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:40:21,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:21,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:21,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:40:21,167 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:21,247 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:21,248 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2023-11-19 07:40:21,249 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 07:40:21,363 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,365 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,414 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,415 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,415 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,415 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,468 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,469 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,482 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,483 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,483 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,483 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:40:21,484 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:40:21,485 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,501 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,502 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,507 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,508 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,511 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,511 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,521 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,522 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,539 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,539 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,539 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,540 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,542 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,543 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,543 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,548 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,550 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:21,553 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 1222 states and 2113 transitions. Complement of second has 244 states 16 powerset states228 rank states. The highest rank that occured is 9 [2023-11-19 07:40:21,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2023-11-19 07:40:21,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 07:40:21,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 41 transitions. [2023-11-19 07:40:21,555 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 41 transitions. Stem has 15 letters. Loop has 10 letters. [2023-11-19 07:40:21,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:21,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 41 transitions. Stem has 25 letters. Loop has 10 letters. [2023-11-19 07:40:21,557 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:21,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 41 transitions. Stem has 15 letters. Loop has 20 letters. [2023-11-19 07:40:21,559 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:21,559 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1222 states and 2113 transitions. [2023-11-19 07:40:21,589 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2023-11-19 07:40:21,639 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1222 states to 701 states and 1261 transitions. [2023-11-19 07:40:21,639 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2023-11-19 07:40:21,644 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 258 [2023-11-19 07:40:21,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 701 states and 1261 transitions. [2023-11-19 07:40:21,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:40:21,644 INFO L218 hiAutomatonCegarLoop]: Abstraction has 701 states and 1261 transitions. [2023-11-19 07:40:21,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states and 1261 transitions. [2023-11-19 07:40:21,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2023-11-19 07:40:21,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 179. [2023-11-19 07:40:21,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 179 states have (on average 1.8603351955307263) internal successors, (333), 178 states have internal predecessors, (333), 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 07:40:21,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 333 transitions. [2023-11-19 07:40:21,699 INFO L240 hiAutomatonCegarLoop]: Abstraction has 179 states and 333 transitions. [2023-11-19 07:40:21,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:21,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:40:21,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:40:21,700 INFO L87 Difference]: Start difference. First operand 179 states and 333 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 07:40:21,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:21,723 INFO L93 Difference]: Finished difference Result 201 states and 351 transitions. [2023-11-19 07:40:21,724 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 201 states and 351 transitions. [2023-11-19 07:40:21,726 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2023-11-19 07:40:21,729 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 201 states to 188 states and 321 transitions. [2023-11-19 07:40:21,729 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2023-11-19 07:40:21,729 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2023-11-19 07:40:21,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 188 states and 321 transitions. [2023-11-19 07:40:21,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:40:21,730 INFO L218 hiAutomatonCegarLoop]: Abstraction has 188 states and 321 transitions. [2023-11-19 07:40:21,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states and 321 transitions. [2023-11-19 07:40:21,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 171. [2023-11-19 07:40:21,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 171 states have (on average 1.736842105263158) internal successors, (297), 170 states have internal predecessors, (297), 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 07:40:21,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 297 transitions. [2023-11-19 07:40:21,749 INFO L240 hiAutomatonCegarLoop]: Abstraction has 171 states and 297 transitions. [2023-11-19 07:40:21,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:40:21,750 INFO L428 stractBuchiCegarLoop]: Abstraction has 171 states and 297 transitions. [2023-11-19 07:40:21,750 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-19 07:40:21,750 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 171 states and 297 transitions. [2023-11-19 07:40:21,751 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 42 [2023-11-19 07:40:21,752 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:40:21,752 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:40:21,753 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 3, 2, 1, 1] [2023-11-19 07:40:21,754 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 2, 2] [2023-11-19 07:40:21,754 INFO L748 eck$LassoCheckResult]: Stem: 3590#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3591#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 3661#L12-2 assume !!(main_~c~0#1 > 0); 3662#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3655#L12-2 assume !!(main_~c~0#1 > 0); 3651#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3649#L12-2 assume !!(main_~c~0#1 > 0); 3647#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 3645#L12-2 assume !!(main_~c~0#1 > 0); 3643#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 3641#L12-2 assume !!(main_~c~0#1 > 0); 3642#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3632#L12-2 assume !!(main_~c~0#1 > 0); 3604#L12 [2023-11-19 07:40:21,754 INFO L750 eck$LassoCheckResult]: Loop: 3604#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 3603#L12-2 assume !!(main_~c~0#1 > 0); 3611#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 3608#L12-2 assume !!(main_~c~0#1 > 0); 3606#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3597#L12-2 assume !!(main_~c~0#1 > 0); 3599#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3600#L12-2 assume !!(main_~c~0#1 > 0); 3604#L12 [2023-11-19 07:40:21,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:21,755 INFO L85 PathProgramCache]: Analyzing trace with hash -686205165, now seen corresponding path program 10 times [2023-11-19 07:40:21,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:21,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812683421] [2023-11-19 07:40:21,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:21,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:21,769 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:21,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:21,782 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:21,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:21,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1593853071, now seen corresponding path program 4 times [2023-11-19 07:40:21,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:21,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188471533] [2023-11-19 07:40:21,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:21,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:21,840 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:40:21,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:21,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188471533] [2023-11-19 07:40:21,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188471533] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:21,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:21,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:40:21,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752529778] [2023-11-19 07:40:21,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:21,842 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 07:40:21,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:21,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:40:21,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:40:21,843 INFO L87 Difference]: Start difference. First operand 171 states and 297 transitions. cyclomatic complexity: 134 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 07:40:21,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:21,859 INFO L93 Difference]: Finished difference Result 155 states and 226 transitions. [2023-11-19 07:40:21,860 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 155 states and 226 transitions. [2023-11-19 07:40:21,862 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2023-11-19 07:40:21,862 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 155 states to 54 states and 69 transitions. [2023-11-19 07:40:21,863 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-19 07:40:21,863 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-11-19 07:40:21,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 69 transitions. [2023-11-19 07:40:21,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:40:21,864 INFO L218 hiAutomatonCegarLoop]: Abstraction has 54 states and 69 transitions. [2023-11-19 07:40:21,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 69 transitions. [2023-11-19 07:40:21,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 43. [2023-11-19 07:40:21,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 42 states have internal predecessors, (57), 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 07:40:21,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2023-11-19 07:40:21,866 INFO L240 hiAutomatonCegarLoop]: Abstraction has 43 states and 57 transitions. [2023-11-19 07:40:21,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:40:21,867 INFO L428 stractBuchiCegarLoop]: Abstraction has 43 states and 57 transitions. [2023-11-19 07:40:21,867 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-19 07:40:21,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 57 transitions. [2023-11-19 07:40:21,868 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2023-11-19 07:40:21,868 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:40:21,868 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:40:21,869 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1] [2023-11-19 07:40:21,869 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [10, 6, 4] [2023-11-19 07:40:21,870 INFO L748 eck$LassoCheckResult]: Stem: 3924#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3925#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 3922#L12-2 assume !!(main_~c~0#1 > 0); 3923#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3952#L12-2 assume !!(main_~c~0#1 > 0); 3950#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3951#L12-2 assume !!(main_~c~0#1 > 0); 3921#L12 [2023-11-19 07:40:21,870 INFO L750 eck$LassoCheckResult]: Loop: 3921#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 3927#L12-2 assume !!(main_~c~0#1 > 0); 3947#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 3946#L12-2 assume !!(main_~c~0#1 > 0); 3945#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3944#L12-2 assume !!(main_~c~0#1 > 0); 3943#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 3942#L12-2 assume !!(main_~c~0#1 > 0); 3941#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3939#L12-2 assume !!(main_~c~0#1 > 0); 3936#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 3938#L12-2 assume !!(main_~c~0#1 > 0); 3937#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3935#L12-2 assume !!(main_~c~0#1 > 0); 3931#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 3932#L12-2 assume !!(main_~c~0#1 > 0); 3934#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 3933#L12-2 assume !!(main_~c~0#1 > 0); 3930#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3919#L12-2 assume !!(main_~c~0#1 > 0); 3921#L12 [2023-11-19 07:40:21,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:21,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1810715102, now seen corresponding path program 2 times [2023-11-19 07:40:21,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:21,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084991438] [2023-11-19 07:40:21,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:21,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:21,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:21,878 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:21,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:21,885 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:21,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:21,886 INFO L85 PathProgramCache]: Analyzing trace with hash -860275429, now seen corresponding path program 5 times [2023-11-19 07:40:21,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:21,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892352252] [2023-11-19 07:40:21,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:21,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:21,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:21,903 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:21,924 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:21,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:21,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1172307576, now seen corresponding path program 11 times [2023-11-19 07:40:21,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:21,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773984249] [2023-11-19 07:40:21,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:21,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:22,152 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 105 proven. 36 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:40:22,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:22,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773984249] [2023-11-19 07:40:22,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773984249] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:40:22,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300588540] [2023-11-19 07:40:22,153 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-19 07:40:22,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:40:22,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:22,155 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:40:22,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-19 07:40:22,203 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2023-11-19 07:40:22,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:40:22,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 07:40:22,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:22,250 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 105 proven. 36 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:40:22,250 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:40:22,391 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 105 proven. 36 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:40:22,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300588540] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:40:22,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:40:22,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 20 [2023-11-19 07:40:22,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898463240] [2023-11-19 07:40:22,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:40:22,626 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:40:22,626 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:40:22,626 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:40:22,626 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:40:22,627 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:40:22,627 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:22,627 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:40:22,627 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:40:22,627 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration9_Loop [2023-11-19 07:40:22,627 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:40:22,627 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:40:22,628 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 07:40:22,632 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 07:40:22,636 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 07:40:22,642 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 07:40:22,700 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:40:22,700 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:40:22,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:22,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:22,704 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:22,706 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:40:22,706 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:22,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2023-11-19 07:40:22,739 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:40:22,740 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:40:22,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:22,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:22,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:22,760 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:22,762 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:40:22,762 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:22,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2023-11-19 07:40:22,791 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:40:22,791 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_15=0} Honda state: {v_rep~unnamed0~0~false_15=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:40:22,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:22,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:22,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:22,812 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:22,815 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:40:22,815 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:22,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2023-11-19 07:40:22,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:22,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:22,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:22,856 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:22,858 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:40:22,859 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:40:22,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2023-11-19 07:40:22,911 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:40:22,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:22,916 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:40:22,916 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:40:22,916 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:40:22,916 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:40:22,916 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:40:22,916 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:22,916 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:40:22,916 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:40:22,916 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration9_Loop [2023-11-19 07:40:22,916 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:40:22,917 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:40:22,918 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 07:40:22,921 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 07:40:22,928 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 07:40:22,937 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 07:40:23,008 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:40:23,008 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:40:23,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:23,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:23,010 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:23,016 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 07:40:23,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2023-11-19 07:40:23,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:40:23,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:40:23,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:40:23,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:40:23,033 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:40:23,033 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:40:23,051 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:40:23,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:23,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:23,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:23,072 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:23,075 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 07:40:23,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:40:23,087 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:40:23,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:40:23,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:40:23,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:40:23,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2023-11-19 07:40:23,089 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:40:23,089 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:40:23,103 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:40:23,112 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-19 07:40:23,112 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:40:23,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:40:23,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:23,114 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:23,120 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:40:23,120 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:40:23,120 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:40:23,120 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0#1) = 1*ULTIMATE.start_main_~c~0#1 Supporting invariants [] [2023-11-19 07:40:23,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2023-11-19 07:40:23,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:23,140 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:40:23,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:23,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:40:23,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:23,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:40:23,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:23,294 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:40:23,295 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2023-11-19 07:40:23,295 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 57 transitions. cyclomatic complexity: 18 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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 07:40:23,301 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 57 transitions. cyclomatic complexity: 18. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) Result 43 states and 57 transitions. Complement of second has 3 states. [2023-11-19 07:40:23,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-19 07:40:23,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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 07:40:23,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-19 07:40:23,302 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 7 letters. Loop has 20 letters. [2023-11-19 07:40:23,302 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:23,302 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:40:23,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:23,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:40:23,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:23,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:23,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:40:23,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:23,442 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:40:23,443 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2023-11-19 07:40:23,444 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 57 transitions. cyclomatic complexity: 18 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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 07:40:23,448 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 57 transitions. cyclomatic complexity: 18. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) Result 43 states and 57 transitions. Complement of second has 3 states. [2023-11-19 07:40:23,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-19 07:40:23,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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 07:40:23,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-19 07:40:23,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 7 letters. Loop has 20 letters. [2023-11-19 07:40:23,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:23,450 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:40:23,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:23,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:40:23,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:23,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:23,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:40:23,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:23,589 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:40:23,589 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2023-11-19 07:40:23,590 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 57 transitions. cyclomatic complexity: 18 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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 07:40:23,606 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 57 transitions. cyclomatic complexity: 18. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) Result 62 states and 78 transitions. Complement of second has 4 states. [2023-11-19 07:40:23,607 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 07:40:23,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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 07:40:23,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-19 07:40:23,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 20 letters. [2023-11-19 07:40:23,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:23,609 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:40:23,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:23,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:40:23,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:23,648 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:40:23,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:23,739 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:40:23,740 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2023-11-19 07:40:23,740 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 57 transitions. cyclomatic complexity: 18 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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 07:40:23,757 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 57 transitions. cyclomatic complexity: 18. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) Result 62 states and 78 transitions. Complement of second has 4 states. [2023-11-19 07:40:23,757 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 07:40:23,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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 07:40:23,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-19 07:40:23,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 20 letters. [2023-11-19 07:40:23,759 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:23,759 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:40:23,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:23,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:40:23,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:23,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:40:23,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:40:23,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:23,933 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:40:23,933 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2023-11-19 07:40:23,934 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 43 states and 57 transitions. cyclomatic complexity: 18 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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 07:40:24,011 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,012 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,028 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,029 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,046 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,046 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,051 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,052 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,052 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,053 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,080 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,081 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,081 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,082 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,088 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:40:24,088 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:40:24,089 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:40:24,089 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:40:24,095 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,097 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,098 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:40:24,098 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,099 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:40:24,099 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,104 WARN L278 uchiComplementFKVNwa]: big7 [2023-11-19 07:40:24,106 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:40:24,107 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,107 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,107 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:40:24,108 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,108 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,113 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,114 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,114 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,114 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,115 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,121 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:40:24,121 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,121 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:40:24,129 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,129 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,130 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,134 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,134 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,137 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,138 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,140 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,140 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,140 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,141 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,141 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,141 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,145 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,146 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,147 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,147 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,148 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,150 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,151 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,152 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,152 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,153 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,156 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,156 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,158 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,160 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:40:24,165 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,166 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,166 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:40:24,170 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,170 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,172 WARN L278 uchiComplementFKVNwa]: big7 [2023-11-19 07:40:24,173 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:40:24,178 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,194 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,194 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,197 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,198 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,198 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,199 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,199 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,201 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,202 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,202 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:40:24,209 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 43 states and 57 transitions. cyclomatic complexity: 18 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) Result 2035 states and 3574 transitions. Complement of second has 430 states 13 powerset states417 rank states. The highest rank that occured is 9 [2023-11-19 07:40:24,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2023-11-19 07:40:24,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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 07:40:24,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 34 transitions. [2023-11-19 07:40:24,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 34 transitions. Stem has 7 letters. Loop has 20 letters. [2023-11-19 07:40:24,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:24,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 34 transitions. Stem has 27 letters. Loop has 20 letters. [2023-11-19 07:40:24,225 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:24,225 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 34 transitions. Stem has 7 letters. Loop has 40 letters. [2023-11-19 07:40:24,265 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:40:24,265 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2035 states and 3574 transitions. [2023-11-19 07:40:24,288 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:40:24,289 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2035 states to 0 states and 0 transitions. [2023-11-19 07:40:24,289 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 07:40:24,289 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 07:40:24,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 07:40:24,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:24,289 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:40:24,289 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:40:24,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:24,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-19 07:40:24,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2023-11-19 07:40:24,291 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 20 states, 20 states have (on average 2.2) internal successors, (44), 20 states have internal predecessors, (44), 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 07:40:24,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:24,291 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-11-19 07:40:24,291 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-11-19 07:40:24,291 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:40:24,292 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 07:40:24,292 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 07:40:24,292 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 07:40:24,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 07:40:24,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:24,292 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:40:24,292 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:40:24,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:40:24,293 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:40:24,293 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2023-11-19 07:40:24,293 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:40:24,294 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:40:24,294 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-19 07:40:24,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:40:24 BoogieIcfgContainer [2023-11-19 07:40:24,303 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:40:24,303 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:40:24,303 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:40:24,304 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:40:24,304 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:13" (3/4) ... [2023-11-19 07:40:24,306 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:40:24,308 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:40:24,308 INFO L158 Benchmark]: Toolchain (without parser) took 11258.06ms. Allocated memory was 199.2MB in the beginning and 239.1MB in the end (delta: 39.8MB). Free memory was 162.5MB in the beginning and 127.5MB in the end (delta: 35.0MB). Peak memory consumption was 78.0MB. Max. memory is 16.1GB. [2023-11-19 07:40:24,309 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 140.5MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:40:24,309 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.75ms. Allocated memory is still 199.2MB. Free memory was 161.7MB in the beginning and 152.5MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 07:40:24,310 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.26ms. Allocated memory is still 199.2MB. Free memory was 152.5MB in the beginning and 151.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:40:24,310 INFO L158 Benchmark]: Boogie Preprocessor took 21.55ms. Allocated memory is still 199.2MB. Free memory was 151.2MB in the beginning and 150.4MB in the end (delta: 792.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:40:24,310 INFO L158 Benchmark]: RCFGBuilder took 304.62ms. Allocated memory is still 199.2MB. Free memory was 150.4MB in the beginning and 141.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 07:40:24,311 INFO L158 Benchmark]: BuchiAutomizer took 10640.65ms. Allocated memory was 199.2MB in the beginning and 239.1MB in the end (delta: 39.8MB). Free memory was 141.5MB in the beginning and 128.5MB in the end (delta: 13.0MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. [2023-11-19 07:40:24,311 INFO L158 Benchmark]: Witness Printer took 4.70ms. Allocated memory is still 239.1MB. Free memory was 128.5MB in the beginning and 127.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:40:24,314 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 140.5MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 247.75ms. Allocated memory is still 199.2MB. Free memory was 161.7MB in the beginning and 152.5MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.26ms. Allocated memory is still 199.2MB. Free memory was 152.5MB in the beginning and 151.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.55ms. Allocated memory is still 199.2MB. Free memory was 151.2MB in the beginning and 150.4MB in the end (delta: 792.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 304.62ms. Allocated memory is still 199.2MB. Free memory was 150.4MB in the beginning and 141.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 10640.65ms. Allocated memory was 199.2MB in the beginning and 239.1MB in the end (delta: 39.8MB). Free memory was 141.5MB in the beginning and 128.5MB in the end (delta: 13.0MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. * Witness Printer took 4.70ms. Allocated memory is still 239.1MB. Free memory was 128.5MB in the beginning and 127.5MB 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 13 terminating modules (5 trivial, 3 deterministic, 5 nondeterministic). One deterministic module has affine ranking function (211 + (-2 * x)) and consists of 4 locations. One deterministic module has affine ranking function (211 + (-2 * x)) and consists of 3 locations. One deterministic module has affine ranking function (201 + (-2 * x)) and consists of 4 locations. One nondeterministic module has affine ranking function (211 + (-2 * x)) and consists of 3 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function (221 + (-2 * x)) and consists of 4 locations. One nondeterministic module has affine ranking function x and consists of 9 locations. One nondeterministic module has affine ranking function c and consists of 9 locations. 5 modules have a trivial ranking function, the largest among these consists of 20 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.5s and 10 iterations. TraceHistogramMax:10. Analysis of lassos took 6.7s. Construction of modules took 0.2s. Büchi inclusion checks took 3.2s. Highest rank in rank-based complementation 9. Minimization of det autom 2. Minimization of nondet autom 11. Automata minimization 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 571 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 1, 3, 0, 2]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 92/114 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 145 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 114 mSDsluCounter, 174 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 65 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 214 IncrementalHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 65 mSolverCounterUnsat, 131 mSDtfsCounter, 214 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT4 conc0 concLT3 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax165 hnf100 lsp36 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq154 hnf94 smp97 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 44ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.4s 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 07:40:24,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2023-11-19 07:40:24,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-19 07:40:24,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b46f139c-d53f-4267-9e3e-8531ff2094d1/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