./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/UpAndDown.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/UpAndDown.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU --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 1a3ce217426a55eb46107f2cdf23c10dcc5d92a99768880786a980fae67c3971 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:01:45,488 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:01:45,594 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-31 22:01:45,602 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:01:45,604 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:01:45,640 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:01:45,641 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:01:45,641 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:01:45,642 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:01:45,642 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:01:45,643 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:01:45,644 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:01:45,644 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:01:45,645 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:01:45,645 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:01:45,645 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:01:45,646 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:01:45,646 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:01:45,647 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:01:45,647 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:01:45,648 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:01:45,648 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:01:45,649 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:01:45,649 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:01:45,650 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:01:45,650 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:01:45,651 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:01:45,651 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:01:45,651 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:01:45,652 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:01:45,652 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:01:45,653 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:01:45,653 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:01:45,653 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:01:45,654 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:01:45,655 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:01:45,655 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_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a3ce217426a55eb46107f2cdf23c10dcc5d92a99768880786a980fae67c3971 [2024-10-31 22:01:45,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:01:45,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:01:46,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:01:46,002 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:01:46,003 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:01:46,005 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/termination-restricted-15/UpAndDown.c Unable to find full path for "g++" [2024-10-31 22:01:48,087 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:01:48,300 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:01:48,301 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/sv-benchmarks/c/termination-restricted-15/UpAndDown.c [2024-10-31 22:01:48,308 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/data/e23516d98/bdd0183d518d49cd88593cd09c6c5086/FLAG28e24c075 [2024-10-31 22:01:48,321 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/data/e23516d98/bdd0183d518d49cd88593cd09c6c5086 [2024-10-31 22:01:48,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:01:48,326 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:01:48,327 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:01:48,327 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:01:48,335 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:01:48,336 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:01:48" (1/1) ... [2024-10-31 22:01:48,337 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62853192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48, skipping insertion in model container [2024-10-31 22:01:48,337 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:01:48" (1/1) ... [2024-10-31 22:01:48,357 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:01:48,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:01:48,566 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:01:48,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:01:48,597 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:01:48,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48 WrapperNode [2024-10-31 22:01:48,597 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:01:48,599 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:01:48,599 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:01:48,599 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:01:48,607 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48" (1/1) ... [2024-10-31 22:01:48,612 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48" (1/1) ... [2024-10-31 22:01:48,629 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2024-10-31 22:01:48,630 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:01:48,630 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:01:48,631 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:01:48,631 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:01:48,643 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48" (1/1) ... [2024-10-31 22:01:48,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48" (1/1) ... [2024-10-31 22:01:48,644 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48" (1/1) ... [2024-10-31 22:01:48,650 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-31 22:01:48,651 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48" (1/1) ... [2024-10-31 22:01:48,651 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48" (1/1) ... [2024-10-31 22:01:48,653 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48" (1/1) ... [2024-10-31 22:01:48,657 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48" (1/1) ... [2024-10-31 22:01:48,658 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48" (1/1) ... [2024-10-31 22:01:48,659 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48" (1/1) ... [2024-10-31 22:01:48,660 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:01:48,661 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:01:48,661 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:01:48,661 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:01:48,662 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48" (1/1) ... [2024-10-31 22:01:48,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:48,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:48,699 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:48,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:01:48,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:01:48,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:01:48,829 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:01:48,832 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:01:48,926 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-10-31 22:01:48,926 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:01:48,942 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:01:48,943 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:01:48,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:01:48 BoogieIcfgContainer [2024-10-31 22:01:48,943 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:01:48,945 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:01:48,945 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:01:48,950 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:01:48,951 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:01:48,951 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:01:48" (1/3) ... [2024-10-31 22:01:48,953 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57ade782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:01:48, skipping insertion in model container [2024-10-31 22:01:48,953 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:01:48,953 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:48" (2/3) ... [2024-10-31 22:01:48,954 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57ade782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:01:48, skipping insertion in model container [2024-10-31 22:01:48,954 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:01:48,954 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:01:48" (3/3) ... [2024-10-31 22:01:48,956 INFO L332 chiAutomizerObserver]: Analyzing ICFG UpAndDown.c [2024-10-31 22:01:49,031 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:01:49,033 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:01:49,033 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:01:49,033 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:01:49,034 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:01:49,034 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:01:49,034 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:01:49,035 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:01:49,040 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:49,067 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:01:49,067 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:01:49,067 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:01:49,077 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:01:49,078 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 22:01:49,078 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:01:49,078 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:49,079 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:01:49,080 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:01:49,080 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:01:49,082 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:01:49,082 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 22:01:49,093 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 4#L18-1true [2024-10-31 22:01:49,094 INFO L747 eck$LassoCheckResult]: Loop: 4#L18-1true assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 10#L12true assume !(10 == main_~i~0#1); 2#L12-2true assume 0 == main_~i~0#1;main_~up~0#1 := 1; 7#L15-1true assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4#L18-1true [2024-10-31 22:01:49,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:49,102 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-31 22:01:49,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:49,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295176013] [2024-10-31 22:01:49,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:49,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:49,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:49,206 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:49,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:49,225 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:49,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:49,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 1 times [2024-10-31 22:01:49,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:49,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545693882] [2024-10-31 22:01:49,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:49,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:49,243 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:49,251 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:49,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:49,253 INFO L85 PathProgramCache]: Analyzing trace with hash 889694446, now seen corresponding path program 1 times [2024-10-31 22:01:49,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:49,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026172027] [2024-10-31 22:01:49,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:49,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:49,264 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:49,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:49,272 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:49,418 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:49,419 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:49,419 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:49,419 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:49,419 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:01:49,420 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:49,420 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:49,420 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:49,421 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration1_Loop [2024-10-31 22:01:49,421 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:49,421 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:49,443 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:49,461 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:49,478 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:49,493 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:49,690 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:49,694 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:01:49,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:49,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:49,704 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:49,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-31 22:01:49,707 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:49,717 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:49,742 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:01:49,743 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=1} Honda state: {ULTIMATE.start_main_~up~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:01:49,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-31 22:01:49,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:49,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:49,778 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:49,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-31 22:01:49,782 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:49,782 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:49,810 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:01:49,810 INFO L401 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: [] [2024-10-31 22:01:49,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-10-31 22:01:49,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:49,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:49,840 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:49,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 22:01:49,850 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:49,851 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:49,906 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:01:49,907 INFO L401 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: [] [2024-10-31 22:01:49,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-31 22:01:49,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:49,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:49,934 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:49,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 22:01:49,938 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:49,939 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:49,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-10-31 22:01:49,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:49,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:49,988 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:49,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 22:01:49,991 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:01:49,991 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:50,017 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:01:50,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:50,038 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:50,039 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:50,039 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:50,039 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:50,040 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:01:50,040 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:50,040 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:50,041 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:50,041 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration1_Loop [2024-10-31 22:01:50,041 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:50,041 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:50,043 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:50,053 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:50,059 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:50,071 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:50,139 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:50,145 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:01:50,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:50,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:50,148 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:50,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 22:01:50,151 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 [2024-10-31 22:01:50,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:50,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:50,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:50,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:50,170 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:01:50,171 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:01:50,178 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:50,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:50,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:50,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:50,212 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:50,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 22:01:50,215 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 [2024-10-31 22:01:50,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:50,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:50,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:50,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:50,232 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:01:50,233 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:01:50,240 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:50,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:50,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:50,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:50,264 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:50,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 22:01:50,268 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 [2024-10-31 22:01:50,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:50,281 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:01:50,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:50,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:50,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:50,283 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:01:50,284 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:01:50,287 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:01:50,291 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:01:50,292 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:01:50,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:50,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:50,304 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:50,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-31 22:01:50,307 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:01:50,308 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:01:50,308 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:01:50,309 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2024-10-31 22:01:50,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-31 22:01:50,337 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:01:50,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:50,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:50,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:50,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:50,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:01:50,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:50,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:50,514 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 [2024-10-31 22:01:50,516 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2024-10-31 22:01:50,619 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). 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 28 states and 45 transitions. Complement of second has 8 states. [2024-10-31 22:01:50,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 22:01:50,627 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) [2024-10-31 22:01:50,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2024-10-31 22:01:50,629 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 2 letters. Loop has 4 letters. [2024-10-31 22:01:50,630 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:50,630 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 6 letters. Loop has 4 letters. [2024-10-31 22:01:50,631 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:50,631 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 2 letters. Loop has 8 letters. [2024-10-31 22:01:50,632 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:50,633 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 45 transitions. [2024-10-31 22:01:50,635 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-10-31 22:01:50,643 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 19 states and 30 transitions. [2024-10-31 22:01:50,644 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-10-31 22:01:50,644 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-10-31 22:01:50,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 30 transitions. [2024-10-31 22:01:50,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:01:50,645 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 30 transitions. [2024-10-31 22:01:50,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 30 transitions. [2024-10-31 22:01:50,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2024-10-31 22:01:50,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 17 states have internal predecessors, (28), 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) [2024-10-31 22:01:50,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 28 transitions. [2024-10-31 22:01:50,677 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 28 transitions. [2024-10-31 22:01:50,677 INFO L425 stractBuchiCegarLoop]: Abstraction has 18 states and 28 transitions. [2024-10-31 22:01:50,677 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 22:01:50,677 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 28 transitions. [2024-10-31 22:01:50,678 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-10-31 22:01:50,679 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:01:50,679 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:01:50,679 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-31 22:01:50,679 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 22:01:50,679 INFO L745 eck$LassoCheckResult]: Stem: 92#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 93#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 97#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 89#L12 [2024-10-31 22:01:50,680 INFO L747 eck$LassoCheckResult]: Loop: 89#L12 assume !(10 == main_~i~0#1); 98#L12-2 assume !(0 == main_~i~0#1); 99#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 88#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 89#L12 [2024-10-31 22:01:50,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:50,680 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-10-31 22:01:50,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:50,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533562795] [2024-10-31 22:01:50,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:50,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:50,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:50,692 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:50,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:50,697 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:50,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:50,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1422136, now seen corresponding path program 1 times [2024-10-31 22:01:50,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:50,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716162202] [2024-10-31 22:01:50,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:50,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:50,709 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:50,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:50,719 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:50,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:50,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1810725983, now seen corresponding path program 1 times [2024-10-31 22:01:50,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:50,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594240167] [2024-10-31 22:01:50,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:50,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:50,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:50,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:50,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594240167] [2024-10-31 22:01:50,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594240167] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:50,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:50,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:01:50,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133558558] [2024-10-31 22:01:50,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:50,873 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:50,873 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:50,873 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:50,873 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:50,873 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:01:50,874 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:50,874 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:50,877 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:50,877 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration2_Loop [2024-10-31 22:01:50,877 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:50,877 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:50,879 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:50,887 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:50,905 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:50,910 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:51,010 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:51,011 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:01:51,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:51,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:51,013 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:51,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 22:01:51,016 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:51,016 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:51,041 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:01:51,042 INFO L401 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: [] [2024-10-31 22:01:51,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-10-31 22:01:51,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:51,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:51,063 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:51,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-31 22:01:51,066 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:51,067 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:51,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-10-31 22:01:51,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:51,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:51,106 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:51,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-31 22:01:51,110 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:01:51,110 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:51,225 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:01:51,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-31 22:01:51,230 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:51,230 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:51,230 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:51,231 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:51,231 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:01:51,231 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:51,231 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:51,231 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:51,231 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration2_Loop [2024-10-31 22:01:51,231 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:51,231 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:51,233 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:51,241 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:51,257 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:51,262 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:51,371 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:51,372 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:01:51,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:51,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:51,374 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:51,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-31 22:01:51,378 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 [2024-10-31 22:01:51,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:51,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:51,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:51,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:51,399 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:01:51,399 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:01:51,406 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:51,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-10-31 22:01:51,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:51,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:51,427 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:51,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-31 22:01:51,431 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 [2024-10-31 22:01:51,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:51,446 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:01:51,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:51,446 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 22:01:51,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:51,449 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-10-31 22:01:51,449 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:01:51,453 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:01:51,456 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:01:51,456 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:01:51,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:51,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:51,459 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:51,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-31 22:01:51,467 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:01:51,468 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:01:51,468 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:01:51,468 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 19 Supporting invariants [] [2024-10-31 22:01:51,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-31 22:01:51,505 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:01:51,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:51,532 INFO L255 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:51,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:51,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:51,544 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:01:51,544 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:51,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:51,605 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 [2024-10-31 22:01:51,607 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 28 transitions. cyclomatic complexity: 13 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:51,656 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 28 transitions. cyclomatic complexity: 13. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 43 transitions. Complement of second has 7 states. [2024-10-31 22:01:51,657 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 [2024-10-31 22:01:51,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:51,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2024-10-31 22:01:51,658 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2024-10-31 22:01:51,659 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:51,659 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 4 letters. [2024-10-31 22:01:51,660 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:51,660 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 8 letters. [2024-10-31 22:01:51,660 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:51,660 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 43 transitions. [2024-10-31 22:01:51,661 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:01:51,664 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 21 states and 35 transitions. [2024-10-31 22:01:51,664 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-10-31 22:01:51,664 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-10-31 22:01:51,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 35 transitions. [2024-10-31 22:01:51,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:01:51,665 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 35 transitions. [2024-10-31 22:01:51,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 35 transitions. [2024-10-31 22:01:51,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2024-10-31 22:01:51,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.7) internal successors, (34), 19 states have internal predecessors, (34), 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) [2024-10-31 22:01:51,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 34 transitions. [2024-10-31 22:01:51,667 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 34 transitions. [2024-10-31 22:01:51,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:51,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:01:51,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:01:51,671 INFO L87 Difference]: Start difference. First operand 20 states and 34 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:51,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:51,687 INFO L93 Difference]: Finished difference Result 32 states and 52 transitions. [2024-10-31 22:01:51,687 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 52 transitions. [2024-10-31 22:01:51,689 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-10-31 22:01:51,689 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 29 states and 46 transitions. [2024-10-31 22:01:51,689 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2024-10-31 22:01:51,690 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2024-10-31 22:01:51,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 46 transitions. [2024-10-31 22:01:51,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:01:51,690 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 46 transitions. [2024-10-31 22:01:51,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 46 transitions. [2024-10-31 22:01:51,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2024-10-31 22:01:51,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 27 states have internal predecessors, (45), 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) [2024-10-31 22:01:51,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 45 transitions. [2024-10-31 22:01:51,703 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 45 transitions. [2024-10-31 22:01:51,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:01:51,705 INFO L425 stractBuchiCegarLoop]: Abstraction has 28 states and 45 transitions. [2024-10-31 22:01:51,705 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 22:01:51,705 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 45 transitions. [2024-10-31 22:01:51,706 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-10-31 22:01:51,706 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:01:51,706 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:01:51,706 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-10-31 22:01:51,706 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 22:01:51,707 INFO L745 eck$LassoCheckResult]: Stem: 235#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 236#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 239#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 244#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 226#L12-2 assume !(0 == main_~i~0#1); 228#L15-1 [2024-10-31 22:01:51,707 INFO L747 eck$LassoCheckResult]: Loop: 228#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 237#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 248#L12 assume !(10 == main_~i~0#1); 246#L12-2 assume !(0 == main_~i~0#1); 228#L15-1 [2024-10-31 22:01:51,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:51,707 INFO L85 PathProgramCache]: Analyzing trace with hash 28699760, now seen corresponding path program 1 times [2024-10-31 22:01:51,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:51,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225958200] [2024-10-31 22:01:51,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:51,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:51,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:51,721 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:51,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-10-31 22:01:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:51,731 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:51,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:51,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1768758, now seen corresponding path program 1 times [2024-10-31 22:01:51,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:51,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128883112] [2024-10-31 22:01:51,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:51,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:51,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:51,748 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:51,753 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:51,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:51,754 INFO L85 PathProgramCache]: Analyzing trace with hash 588716581, now seen corresponding path program 1 times [2024-10-31 22:01:51,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:51,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751455063] [2024-10-31 22:01:51,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:51,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:51,761 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:51,767 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:51,824 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:51,824 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:51,824 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:51,824 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:51,824 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:01:51,824 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:51,824 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:51,824 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:51,824 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration3_Loop [2024-10-31 22:01:51,824 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:51,825 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:51,826 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:51,844 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:51,848 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:51,853 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:51,946 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:51,946 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:01:51,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:51,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:51,949 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:51,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-31 22:01:51,952 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:51,953 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:51,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-10-31 22:01:51,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:51,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:51,998 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:52,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-31 22:01:52,001 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:01:52,001 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:52,134 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:01:52,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:52,138 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:52,138 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:52,138 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:52,138 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:52,138 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:01:52,139 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:52,139 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:52,139 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:52,139 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration3_Loop [2024-10-31 22:01:52,139 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:52,139 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:52,141 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:52,158 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:52,163 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:52,168 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:52,263 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:52,263 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:01:52,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:52,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:52,266 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:52,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-31 22:01:52,269 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 [2024-10-31 22:01:52,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:52,286 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:01:52,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:52,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:52,287 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:52,288 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:01:52,290 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:01:52,296 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:01:52,302 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:01:52,302 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:01:52,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:52,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:52,306 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:52,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-31 22:01:52,310 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:01:52,310 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:01:52,311 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:01:52,311 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-10-31 22:01:52,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:52,334 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:01:52,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:52,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:52,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:52,369 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:52,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:52,388 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:01:52,389 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:52,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:52,445 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 [2024-10-31 22:01:52,446 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 45 transitions. cyclomatic complexity: 20 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:52,503 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 45 transitions. cyclomatic complexity: 20. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 65 states and 104 transitions. Complement of second has 7 states. [2024-10-31 22:01:52,506 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 [2024-10-31 22:01:52,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:52,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2024-10-31 22:01:52,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 4 letters. [2024-10-31 22:01:52,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:52,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2024-10-31 22:01:52,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:52,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 8 letters. [2024-10-31 22:01:52,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:52,510 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 104 transitions. [2024-10-31 22:01:52,513 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2024-10-31 22:01:52,518 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 60 states and 98 transitions. [2024-10-31 22:01:52,518 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2024-10-31 22:01:52,519 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2024-10-31 22:01:52,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 98 transitions. [2024-10-31 22:01:52,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:01:52,519 INFO L218 hiAutomatonCegarLoop]: Abstraction has 60 states and 98 transitions. [2024-10-31 22:01:52,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 98 transitions. [2024-10-31 22:01:52,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2024-10-31 22:01:52,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.6785714285714286) internal successors, (94), 55 states have internal predecessors, (94), 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) [2024-10-31 22:01:52,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 94 transitions. [2024-10-31 22:01:52,530 INFO L240 hiAutomatonCegarLoop]: Abstraction has 56 states and 94 transitions. [2024-10-31 22:01:52,530 INFO L425 stractBuchiCegarLoop]: Abstraction has 56 states and 94 transitions. [2024-10-31 22:01:52,531 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 22:01:52,531 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 94 transitions. [2024-10-31 22:01:52,532 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2024-10-31 22:01:52,532 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:01:52,532 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:01:52,533 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:01:52,536 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 22:01:52,536 INFO L745 eck$LassoCheckResult]: Stem: 379#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 380#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 384#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 412#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 408#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 407#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 404#L18-1 [2024-10-31 22:01:52,536 INFO L747 eck$LassoCheckResult]: Loop: 404#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 397#L12 assume !(10 == main_~i~0#1); 394#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 395#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 404#L18-1 [2024-10-31 22:01:52,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:52,537 INFO L85 PathProgramCache]: Analyzing trace with hash 889692526, now seen corresponding path program 1 times [2024-10-31 22:01:52,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:52,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807740379] [2024-10-31 22:01:52,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:52,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:52,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:52,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:52,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807740379] [2024-10-31 22:01:52,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807740379] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:52,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:52,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:01:52,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139549527] [2024-10-31 22:01:52,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:52,590 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:01:52,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:52,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 2 times [2024-10-31 22:01:52,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:52,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988466845] [2024-10-31 22:01:52,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:52,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:52,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:52,597 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:52,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:52,601 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:52,642 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:52,642 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:52,643 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:52,643 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:52,643 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:01:52,643 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:52,643 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:52,643 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:52,643 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration4_Loop [2024-10-31 22:01:52,644 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:52,644 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:52,647 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:52,653 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:52,659 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:52,669 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:52,743 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:52,744 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:01:52,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:52,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:52,747 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:52,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-31 22:01:52,751 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:52,751 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:52,781 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:01:52,782 INFO L401 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: [] [2024-10-31 22:01:52,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-10-31 22:01:52,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:52,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:52,806 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:52,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-31 22:01:52,810 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:52,811 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:52,831 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:01:52,831 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=1} Honda state: {ULTIMATE.start_main_~up~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:01:52,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:52,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:52,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:52,856 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:52,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-31 22:01:52,860 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:52,860 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:52,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:52,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:52,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:52,904 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:52,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-31 22:01:52,906 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:01:52,906 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:52,923 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:01:52,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:52,942 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:52,943 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:52,943 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:52,943 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:52,943 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:01:52,943 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:52,943 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:52,943 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:52,943 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration4_Loop [2024-10-31 22:01:52,943 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:52,943 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:52,944 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:52,949 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:52,957 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:52,962 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:53,022 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:53,022 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:01:53,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:53,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:53,027 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:53,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-31 22:01:53,029 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 [2024-10-31 22:01:53,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:53,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:53,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:53,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:53,048 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:01:53,049 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:01:53,053 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:53,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-10-31 22:01:53,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:53,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:53,076 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:53,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-31 22:01:53,078 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 [2024-10-31 22:01:53,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:53,094 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:01:53,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:53,094 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:53,094 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:53,095 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:01:53,095 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:01:53,098 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:01:53,101 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:01:53,101 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:01:53,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:53,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:53,104 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:53,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-31 22:01:53,108 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:01:53,108 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:01:53,108 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:01:53,108 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2024-10-31 22:01:53,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:53,129 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:01:53,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:53,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:53,164 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:53,164 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:53,184 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:01:53,185 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:53,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:53,218 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 [2024-10-31 22:01:53,218 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 94 transitions. cyclomatic complexity: 44 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) [2024-10-31 22:01:53,280 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 94 transitions. cyclomatic complexity: 44. 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 116 states and 190 transitions. Complement of second has 7 states. [2024-10-31 22:01:53,281 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 [2024-10-31 22:01:53,282 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) [2024-10-31 22:01:53,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2024-10-31 22:01:53,284 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 4 letters. [2024-10-31 22:01:53,284 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:53,284 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 10 letters. Loop has 4 letters. [2024-10-31 22:01:53,284 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:53,284 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 8 letters. [2024-10-31 22:01:53,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:53,285 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 116 states and 190 transitions. [2024-10-31 22:01:53,288 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 17 [2024-10-31 22:01:53,289 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 116 states to 107 states and 175 transitions. [2024-10-31 22:01:53,290 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2024-10-31 22:01:53,290 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2024-10-31 22:01:53,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 175 transitions. [2024-10-31 22:01:53,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:01:53,291 INFO L218 hiAutomatonCegarLoop]: Abstraction has 107 states and 175 transitions. [2024-10-31 22:01:53,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 175 transitions. [2024-10-31 22:01:53,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 96. [2024-10-31 22:01:53,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 96 states have (on average 1.6770833333333333) internal successors, (161), 95 states have internal predecessors, (161), 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) [2024-10-31 22:01:53,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 161 transitions. [2024-10-31 22:01:53,299 INFO L240 hiAutomatonCegarLoop]: Abstraction has 96 states and 161 transitions. [2024-10-31 22:01:53,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:53,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:01:53,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:01:53,300 INFO L87 Difference]: Start difference. First operand 96 states and 161 transitions. 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) [2024-10-31 22:01:53,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:53,319 INFO L93 Difference]: Finished difference Result 107 states and 163 transitions. [2024-10-31 22:01:53,320 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 107 states and 163 transitions. [2024-10-31 22:01:53,322 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 18 [2024-10-31 22:01:53,323 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 107 states to 101 states and 153 transitions. [2024-10-31 22:01:53,324 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2024-10-31 22:01:53,324 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2024-10-31 22:01:53,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 153 transitions. [2024-10-31 22:01:53,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:01:53,325 INFO L218 hiAutomatonCegarLoop]: Abstraction has 101 states and 153 transitions. [2024-10-31 22:01:53,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 153 transitions. [2024-10-31 22:01:53,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 96. [2024-10-31 22:01:53,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 96 states have (on average 1.5416666666666667) internal successors, (148), 95 states have internal predecessors, (148), 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) [2024-10-31 22:01:53,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 148 transitions. [2024-10-31 22:01:53,333 INFO L240 hiAutomatonCegarLoop]: Abstraction has 96 states and 148 transitions. [2024-10-31 22:01:53,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:01:53,334 INFO L425 stractBuchiCegarLoop]: Abstraction has 96 states and 148 transitions. [2024-10-31 22:01:53,334 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-31 22:01:53,334 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states and 148 transitions. [2024-10-31 22:01:53,335 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 17 [2024-10-31 22:01:53,335 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:01:53,336 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:01:53,336 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1] [2024-10-31 22:01:53,336 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 22:01:53,336 INFO L745 eck$LassoCheckResult]: Stem: 806#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 807#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 801#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 803#L12 assume !(10 == main_~i~0#1); 809#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 863#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 858#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 854#L12 assume !(10 == main_~i~0#1); 848#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 846#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 817#L18-1 [2024-10-31 22:01:53,336 INFO L747 eck$LassoCheckResult]: Loop: 817#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 839#L12 assume !(10 == main_~i~0#1); 818#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 816#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 817#L18-1 [2024-10-31 22:01:53,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:53,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1506873443, now seen corresponding path program 1 times [2024-10-31 22:01:53,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:53,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193783218] [2024-10-31 22:01:53,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:53,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:53,366 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:53,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:53,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193783218] [2024-10-31 22:01:53,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193783218] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:53,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:53,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:01:53,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850205330] [2024-10-31 22:01:53,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:53,369 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:01:53,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:53,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 3 times [2024-10-31 22:01:53,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:53,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710186084] [2024-10-31 22:01:53,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:53,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:53,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:53,375 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:53,380 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:53,418 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:53,418 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:53,418 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:53,418 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:53,418 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:01:53,419 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:53,419 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:53,419 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:53,419 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration5_Loop [2024-10-31 22:01:53,419 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:53,419 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:53,420 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:53,428 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:53,432 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:53,442 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:53,503 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:53,504 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:01:53,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:53,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:53,506 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:53,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-31 22:01:53,512 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:53,512 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:53,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:53,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:53,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:53,558 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:53,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-10-31 22:01:53,561 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:01:53,561 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:53,584 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:01:53,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:53,607 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:53,607 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:53,607 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:53,607 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:53,607 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:01:53,607 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:53,607 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:53,608 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:53,608 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration5_Loop [2024-10-31 22:01:53,608 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:53,608 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:53,609 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:53,614 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:53,622 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:53,627 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:53,690 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:53,690 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:01:53,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:53,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:53,693 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:53,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-10-31 22:01:53,698 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:01:53,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:53,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:53,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:53,716 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:53,719 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:01:53,720 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:01:53,726 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:53,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-10-31 22:01:53,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:53,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:53,751 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:53,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-10-31 22:01:53,754 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 [2024-10-31 22:01:53,771 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:53,771 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:01:53,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:53,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:53,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:53,773 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:01:53,773 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:01:53,776 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:01:53,780 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:01:53,780 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:01:53,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:53,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:53,783 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:53,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-10-31 22:01:53,785 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:01:53,786 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:01:53,786 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:01:53,786 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2024-10-31 22:01:53,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:53,808 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:01:53,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:53,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:53,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:53,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:53,887 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:01:53,888 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:53,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:53,937 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 [2024-10-31 22:01:53,937 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96 states and 148 transitions. cyclomatic complexity: 61 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2024-10-31 22:01:53,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-10-31 22:01:53,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-10-31 22:01:54,011 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96 states and 148 transitions. cyclomatic complexity: 61. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 147 states and 221 transitions. Complement of second has 7 states. [2024-10-31 22:01:54,021 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 [2024-10-31 22:01:54,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2024-10-31 22:01:54,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2024-10-31 22:01:54,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 10 letters. Loop has 4 letters. [2024-10-31 22:01:54,022 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:54,022 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:01:54,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-10-31 22:01:54,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:54,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:54,058 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:54,059 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:54,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:54,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:01:54,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:54,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:54,117 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 [2024-10-31 22:01:54,117 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96 states and 148 transitions. cyclomatic complexity: 61 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2024-10-31 22:01:54,158 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96 states and 148 transitions. cyclomatic complexity: 61. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 147 states and 221 transitions. Complement of second has 7 states. [2024-10-31 22:01:54,162 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 [2024-10-31 22:01:54,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2024-10-31 22:01:54,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2024-10-31 22:01:54,163 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 10 letters. Loop has 4 letters. [2024-10-31 22:01:54,163 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:54,163 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:01:54,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:54,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:54,197 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:54,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:54,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:54,233 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:01:54,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:54,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:54,264 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 [2024-10-31 22:01:54,264 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96 states and 148 transitions. cyclomatic complexity: 61 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2024-10-31 22:01:54,309 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96 states and 148 transitions. cyclomatic complexity: 61. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 161 states and 250 transitions. Complement of second has 6 states. [2024-10-31 22:01:54,309 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 [2024-10-31 22:01:54,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2024-10-31 22:01:54,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2024-10-31 22:01:54,311 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 4 letters. [2024-10-31 22:01:54,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:54,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 14 letters. Loop has 4 letters. [2024-10-31 22:01:54,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:54,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 8 letters. [2024-10-31 22:01:54,313 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:54,313 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 161 states and 250 transitions. [2024-10-31 22:01:54,315 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 32 [2024-10-31 22:01:54,317 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 161 states to 119 states and 180 transitions. [2024-10-31 22:01:54,317 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2024-10-31 22:01:54,318 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2024-10-31 22:01:54,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 119 states and 180 transitions. [2024-10-31 22:01:54,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:01:54,318 INFO L218 hiAutomatonCegarLoop]: Abstraction has 119 states and 180 transitions. [2024-10-31 22:01:54,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states and 180 transitions. [2024-10-31 22:01:54,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 77. [2024-10-31 22:01:54,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 77 states have (on average 1.5194805194805194) internal successors, (117), 76 states have internal predecessors, (117), 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) [2024-10-31 22:01:54,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 117 transitions. [2024-10-31 22:01:54,325 INFO L240 hiAutomatonCegarLoop]: Abstraction has 77 states and 117 transitions. [2024-10-31 22:01:54,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:54,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:01:54,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:01:54,326 INFO L87 Difference]: Start difference. First operand 77 states and 117 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:54,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:54,340 INFO L93 Difference]: Finished difference Result 57 states and 79 transitions. [2024-10-31 22:01:54,341 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 79 transitions. [2024-10-31 22:01:54,342 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2024-10-31 22:01:54,342 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 51 states and 68 transitions. [2024-10-31 22:01:54,343 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2024-10-31 22:01:54,343 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2024-10-31 22:01:54,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 68 transitions. [2024-10-31 22:01:54,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:01:54,343 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51 states and 68 transitions. [2024-10-31 22:01:54,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 68 transitions. [2024-10-31 22:01:54,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2024-10-31 22:01:54,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 48 states have (on average 1.3541666666666667) internal successors, (65), 47 states have internal predecessors, (65), 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) [2024-10-31 22:01:54,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 65 transitions. [2024-10-31 22:01:54,348 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 65 transitions. [2024-10-31 22:01:54,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:01:54,349 INFO L425 stractBuchiCegarLoop]: Abstraction has 48 states and 65 transitions. [2024-10-31 22:01:54,349 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-31 22:01:54,349 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 65 transitions. [2024-10-31 22:01:54,350 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-10-31 22:01:54,350 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:01:54,350 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:01:54,351 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:01:54,351 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 22:01:54,351 INFO L745 eck$LassoCheckResult]: Stem: 1655#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1656#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 1659#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1679#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 1669#L12-2 assume !(0 == main_~i~0#1); 1657#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 1658#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1677#L12 assume !(10 == main_~i~0#1); 1676#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 1646#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 1672#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1670#L12 [2024-10-31 22:01:54,351 INFO L747 eck$LassoCheckResult]: Loop: 1670#L12 assume !(10 == main_~i~0#1); 1668#L12-2 assume !(0 == main_~i~0#1); 1665#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 1666#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1670#L12 [2024-10-31 22:01:54,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:54,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1179049836, now seen corresponding path program 1 times [2024-10-31 22:01:54,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:54,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226653231] [2024-10-31 22:01:54,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:54,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:54,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:54,426 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:54,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:54,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226653231] [2024-10-31 22:01:54,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226653231] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:01:54,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836933675] [2024-10-31 22:01:54,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:54,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:01:54,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:54,430 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:01:54,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-10-31 22:01:54,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:54,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:01:54,466 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:54,495 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:54,496 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:01:54,531 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:54,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836933675] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:01:54,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:01:54,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-10-31 22:01:54,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18183150] [2024-10-31 22:01:54,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:01:54,533 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:01:54,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:54,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1422136, now seen corresponding path program 2 times [2024-10-31 22:01:54,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:54,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431019193] [2024-10-31 22:01:54,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:54,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:54,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:54,543 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:54,550 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:54,612 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:54,612 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:54,613 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:54,613 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:54,613 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:01:54,613 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:54,613 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:54,613 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:54,613 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration6_Loop [2024-10-31 22:01:54,613 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:54,613 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:54,614 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:54,626 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:54,630 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:54,634 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:54,720 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:54,721 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:01:54,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:54,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:54,722 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:54,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-10-31 22:01:54,724 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:54,724 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:54,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:54,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:54,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:54,763 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:54,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-10-31 22:01:54,765 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:01:54,765 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:54,860 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:01:54,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:54,863 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:54,863 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:54,864 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:54,864 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:54,864 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:01:54,864 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:54,864 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:54,864 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:54,864 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration6_Loop [2024-10-31 22:01:54,864 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:54,864 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:54,865 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:54,874 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:54,877 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:54,880 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:54,973 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:54,973 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:01:54,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:54,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:54,977 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:54,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-10-31 22:01:54,986 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 [2024-10-31 22:01:55,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:55,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:01:55,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:55,004 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 22:01:55,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:55,005 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-10-31 22:01:55,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:01:55,011 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:01:55,016 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:01:55,016 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:01:55,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:55,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:55,019 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:55,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-10-31 22:01:55,021 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:01:55,021 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:01:55,021 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:01:55,021 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 19 Supporting invariants [] [2024-10-31 22:01:55,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:55,045 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:01:55,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:55,079 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:55,080 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:55,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:55,104 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:01:55,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:55,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:55,127 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 [2024-10-31 22:01:55,128 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 65 transitions. cyclomatic complexity: 22 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2024-10-31 22:01:55,173 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 65 transitions. cyclomatic complexity: 22. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 66 states and 90 transitions. Complement of second has 7 states. [2024-10-31 22:01:55,173 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 [2024-10-31 22:01:55,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2024-10-31 22:01:55,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2024-10-31 22:01:55,177 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 11 letters. Loop has 4 letters. [2024-10-31 22:01:55,177 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:55,178 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:01:55,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:55,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:55,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:55,229 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:01:55,229 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:55,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:55,249 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 [2024-10-31 22:01:55,249 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 65 transitions. cyclomatic complexity: 22 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2024-10-31 22:01:55,281 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 65 transitions. cyclomatic complexity: 22. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 66 states and 90 transitions. Complement of second has 7 states. [2024-10-31 22:01:55,281 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 [2024-10-31 22:01:55,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2024-10-31 22:01:55,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2024-10-31 22:01:55,283 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 11 letters. Loop has 4 letters. [2024-10-31 22:01:55,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:55,283 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:01:55,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:55,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:55,309 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:55,310 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:55,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:55,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:01:55,336 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:55,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:55,356 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 [2024-10-31 22:01:55,356 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 65 transitions. cyclomatic complexity: 22 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2024-10-31 22:01:55,396 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 65 transitions. cyclomatic complexity: 22. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 86 states and 124 transitions. Complement of second has 6 states. [2024-10-31 22:01:55,396 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 [2024-10-31 22:01:55,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2024-10-31 22:01:55,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2024-10-31 22:01:55,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 11 letters. Loop has 4 letters. [2024-10-31 22:01:55,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:55,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 15 letters. Loop has 4 letters. [2024-10-31 22:01:55,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:55,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 11 letters. Loop has 8 letters. [2024-10-31 22:01:55,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:55,399 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 124 transitions. [2024-10-31 22:01:55,401 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2024-10-31 22:01:55,402 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 56 states and 76 transitions. [2024-10-31 22:01:55,402 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-10-31 22:01:55,402 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2024-10-31 22:01:55,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 76 transitions. [2024-10-31 22:01:55,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:01:55,403 INFO L218 hiAutomatonCegarLoop]: Abstraction has 56 states and 76 transitions. [2024-10-31 22:01:55,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 76 transitions. [2024-10-31 22:01:55,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 42. [2024-10-31 22:01:55,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 41 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) [2024-10-31 22:01:55,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 57 transitions. [2024-10-31 22:01:55,407 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 57 transitions. [2024-10-31 22:01:55,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:55,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:01:55,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:01:55,408 INFO L87 Difference]: Start difference. First operand 42 states and 57 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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) [2024-10-31 22:01:55,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:55,462 INFO L93 Difference]: Finished difference Result 84 states and 105 transitions. [2024-10-31 22:01:55,462 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 105 transitions. [2024-10-31 22:01:55,463 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 31 [2024-10-31 22:01:55,464 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 72 states and 93 transitions. [2024-10-31 22:01:55,464 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2024-10-31 22:01:55,464 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2024-10-31 22:01:55,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 72 states and 93 transitions. [2024-10-31 22:01:55,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:01:55,465 INFO L218 hiAutomatonCegarLoop]: Abstraction has 72 states and 93 transitions. [2024-10-31 22:01:55,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states and 93 transitions. [2024-10-31 22:01:55,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 66. [2024-10-31 22:01:55,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 65 states have internal predecessors, (85), 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) [2024-10-31 22:01:55,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 85 transitions. [2024-10-31 22:01:55,471 INFO L240 hiAutomatonCegarLoop]: Abstraction has 66 states and 85 transitions. [2024-10-31 22:01:55,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:01:55,472 INFO L425 stractBuchiCegarLoop]: Abstraction has 66 states and 85 transitions. [2024-10-31 22:01:55,472 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-31 22:01:55,472 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 85 transitions. [2024-10-31 22:01:55,473 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2024-10-31 22:01:55,473 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:01:55,473 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:01:55,473 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:01:55,473 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 22:01:55,474 INFO L745 eck$LassoCheckResult]: Stem: 2280#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2281#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 2285#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2292#L12 assume !(10 == main_~i~0#1); 2272#L12-2 assume !(0 == main_~i~0#1); 2273#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2305#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2286#L12 assume !(10 == main_~i~0#1); 2287#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 2330#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 2332#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2303#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 2302#L12-2 [2024-10-31 22:01:55,474 INFO L747 eck$LassoCheckResult]: Loop: 2302#L12-2 assume !(0 == main_~i~0#1); 2337#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2336#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2301#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 2302#L12-2 [2024-10-31 22:01:55,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:55,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1510748164, now seen corresponding path program 2 times [2024-10-31 22:01:55,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:55,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938311388] [2024-10-31 22:01:55,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:55,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:55,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:55,532 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:01:55,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:55,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938311388] [2024-10-31 22:01:55,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938311388] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:55,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:55,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:01:55,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114426036] [2024-10-31 22:01:55,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:55,534 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:01:55,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:55,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1606186, now seen corresponding path program 1 times [2024-10-31 22:01:55,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:55,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892578785] [2024-10-31 22:01:55,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:55,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:55,539 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:55,543 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:55,586 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:55,587 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:55,587 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:55,587 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:55,587 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:01:55,587 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:55,587 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:55,587 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:55,588 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration7_Loop [2024-10-31 22:01:55,588 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:55,588 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:55,589 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:55,593 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:55,599 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:55,607 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:55,671 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:55,672 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:01:55,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:55,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:55,674 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:55,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-10-31 22:01:55,679 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:55,679 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:55,702 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:01:55,702 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_13=1} Honda state: {v_rep~unnamed0~0~true_13=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:01:55,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-10-31 22:01:55,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:55,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:55,719 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:55,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-10-31 22:01:55,720 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:55,721 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:55,740 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:01:55,741 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=0} Honda state: {ULTIMATE.start_main_~up~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:01:55,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-10-31 22:01:55,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:55,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:55,761 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:55,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-10-31 22:01:55,763 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:55,763 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:55,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:55,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:55,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:55,792 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:55,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-10-31 22:01:55,794 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:01:55,795 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:55,810 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:01:55,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-10-31 22:01:55,823 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:55,824 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:55,824 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:55,824 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:55,824 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:01:55,824 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:55,824 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:55,824 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:55,824 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration7_Loop [2024-10-31 22:01:55,824 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:55,824 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:55,825 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:55,833 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:55,837 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:55,841 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:55,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-10-31 22:01:55,944 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:55,944 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:01:55,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:55,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:55,947 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:55,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-10-31 22:01:55,949 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 [2024-10-31 22:01:55,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:55,962 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:01:55,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:55,962 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 22:01:55,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:55,964 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-10-31 22:01:55,964 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:01:55,967 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:55,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:55,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:55,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:55,983 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:55,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-10-31 22:01:55,985 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 [2024-10-31 22:01:55,998 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:55,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:55,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:55,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:56,000 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:01:56,000 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:01:56,005 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:56,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:56,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:56,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:56,026 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:56,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-10-31 22:01:56,028 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 [2024-10-31 22:01:56,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:56,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:56,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:56,040 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:56,042 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:01:56,042 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:01:56,046 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:56,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2024-10-31 22:01:56,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:56,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:56,067 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:56,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-10-31 22:01:56,069 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 [2024-10-31 22:01:56,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:56,083 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:01:56,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:56,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:56,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:56,085 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:01:56,085 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:01:56,088 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:01:56,092 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:01:56,093 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:01:56,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:56,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:56,095 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:56,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-10-31 22:01:56,099 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:01:56,099 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:01:56,100 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:01:56,100 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-10-31 22:01:56,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:56,118 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:01:56,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:56,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:56,142 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:56,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:56,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:56,166 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:01:56,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:56,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:56,180 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 [2024-10-31 22:01:56,180 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 66 states and 85 transitions. cyclomatic complexity: 23 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2024-10-31 22:01:56,205 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 66 states and 85 transitions. cyclomatic complexity: 23. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) Result 160 states and 209 transitions. Complement of second has 7 states. [2024-10-31 22:01:56,206 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 [2024-10-31 22:01:56,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2024-10-31 22:01:56,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2024-10-31 22:01:56,206 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 4 letters. [2024-10-31 22:01:56,207 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:56,207 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2024-10-31 22:01:56,207 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:56,207 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 8 letters. [2024-10-31 22:01:56,207 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:56,207 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 209 transitions. [2024-10-31 22:01:56,209 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2024-10-31 22:01:56,210 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 126 states and 161 transitions. [2024-10-31 22:01:56,210 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2024-10-31 22:01:56,211 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2024-10-31 22:01:56,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 126 states and 161 transitions. [2024-10-31 22:01:56,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:01:56,211 INFO L218 hiAutomatonCegarLoop]: Abstraction has 126 states and 161 transitions. [2024-10-31 22:01:56,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states and 161 transitions. [2024-10-31 22:01:56,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 120. [2024-10-31 22:01:56,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 120 states have (on average 1.2916666666666667) internal successors, (155), 119 states have internal predecessors, (155), 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) [2024-10-31 22:01:56,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 155 transitions. [2024-10-31 22:01:56,217 INFO L240 hiAutomatonCegarLoop]: Abstraction has 120 states and 155 transitions. [2024-10-31 22:01:56,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:56,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:01:56,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:01:56,218 INFO L87 Difference]: Start difference. First operand 120 states and 155 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) 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) [2024-10-31 22:01:56,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:56,241 INFO L93 Difference]: Finished difference Result 138 states and 174 transitions. [2024-10-31 22:01:56,241 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 138 states and 174 transitions. [2024-10-31 22:01:56,242 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33 [2024-10-31 22:01:56,243 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 138 states to 138 states and 174 transitions. [2024-10-31 22:01:56,244 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2024-10-31 22:01:56,244 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2024-10-31 22:01:56,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 138 states and 174 transitions. [2024-10-31 22:01:56,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:01:56,244 INFO L218 hiAutomatonCegarLoop]: Abstraction has 138 states and 174 transitions. [2024-10-31 22:01:56,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states and 174 transitions. [2024-10-31 22:01:56,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 117. [2024-10-31 22:01:56,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 117 states have (on average 1.2564102564102564) internal successors, (147), 116 states have internal predecessors, (147), 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) [2024-10-31 22:01:56,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 147 transitions. [2024-10-31 22:01:56,250 INFO L240 hiAutomatonCegarLoop]: Abstraction has 117 states and 147 transitions. [2024-10-31 22:01:56,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:01:56,254 INFO L425 stractBuchiCegarLoop]: Abstraction has 117 states and 147 transitions. [2024-10-31 22:01:56,254 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-10-31 22:01:56,254 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 117 states and 147 transitions. [2024-10-31 22:01:56,255 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2024-10-31 22:01:56,255 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:01:56,255 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:01:56,257 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 5, 5, 4, 2, 2, 1, 1, 1] [2024-10-31 22:01:56,258 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 22:01:56,258 INFO L745 eck$LassoCheckResult]: Stem: 2835#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2836#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 2840#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2848#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 2827#L12-2 assume !(0 == main_~i~0#1); 2828#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2942#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2843#L12 assume !(10 == main_~i~0#1); 2829#L12-2 assume !(0 == main_~i~0#1); 2830#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2839#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2941#L12 assume !(10 == main_~i~0#1); 2940#L12-2 assume !(0 == main_~i~0#1); 2939#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2937#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2936#L12 assume !(10 == main_~i~0#1); 2935#L12-2 assume !(0 == main_~i~0#1); 2933#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2934#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2938#L12 assume !(10 == main_~i~0#1); 2842#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 2902#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 2900#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2899#L12 assume !(10 == main_~i~0#1); 2877#L12-2 assume !(0 == main_~i~0#1); 2879#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 2878#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2876#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 2850#L12-2 [2024-10-31 22:01:56,258 INFO L747 eck$LassoCheckResult]: Loop: 2850#L12-2 assume !(0 == main_~i~0#1); 2845#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2846#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2874#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 2850#L12-2 [2024-10-31 22:01:56,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:56,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1054469156, now seen corresponding path program 3 times [2024-10-31 22:01:56,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:56,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225667522] [2024-10-31 22:01:56,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:56,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:56,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:56,421 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 41 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:01:56,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:56,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225667522] [2024-10-31 22:01:56,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225667522] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:01:56,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79245353] [2024-10-31 22:01:56,422 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-31 22:01:56,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:01:56,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:56,424 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:01:56,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-10-31 22:01:56,463 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-31 22:01:56,463 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:01:56,464 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:01:56,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:56,511 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-31 22:01:56,511 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:01:56,561 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-31 22:01:56,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79245353] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:01:56,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:01:56,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 13 [2024-10-31 22:01:56,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815798569] [2024-10-31 22:01:56,562 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:01:56,562 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:01:56,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:56,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1606186, now seen corresponding path program 2 times [2024-10-31 22:01:56,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:56,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672032394] [2024-10-31 22:01:56,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:56,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:56,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:56,567 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:56,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:56,570 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:56,611 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:56,611 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:56,611 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:56,611 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:56,612 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:01:56,612 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:56,612 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:56,612 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:56,612 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration8_Loop [2024-10-31 22:01:56,612 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:56,612 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:56,613 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:56,616 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:56,621 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:56,625 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:56,690 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:56,690 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:01:56,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:56,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:56,692 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:56,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-10-31 22:01:56,695 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:56,695 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:56,720 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:01:56,721 INFO L401 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: [] [2024-10-31 22:01:56,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2024-10-31 22:01:56,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:56,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:56,743 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:56,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-10-31 22:01:56,746 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:56,747 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:56,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:56,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:56,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:56,794 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:56,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-10-31 22:01:56,796 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:01:56,796 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:56,811 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:01:56,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:56,849 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:56,850 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:56,850 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:56,850 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:56,850 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:01:56,850 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:56,850 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:56,850 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:56,850 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration8_Loop [2024-10-31 22:01:56,850 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:56,850 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:56,851 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:56,854 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:56,859 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:56,864 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:56,920 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:56,920 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:01:56,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:56,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:56,922 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:56,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-10-31 22:01:56,923 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 [2024-10-31 22:01:56,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:56,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:56,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:56,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:56,937 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:01:56,938 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:01:56,941 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:56,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2024-10-31 22:01:56,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:56,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:56,979 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:56,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-10-31 22:01:56,980 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 [2024-10-31 22:01:56,992 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:56,992 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:01:56,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:56,992 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:56,992 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:56,993 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:01:56,993 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:01:56,996 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:01:56,999 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:01:56,999 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:01:56,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:56,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:57,000 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:57,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2024-10-31 22:01:57,002 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:01:57,002 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:01:57,002 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:01:57,002 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-10-31 22:01:57,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2024-10-31 22:01:57,015 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:01:57,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:57,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:57,045 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:57,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:57,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:57,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:01:57,099 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:57,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:57,112 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 [2024-10-31 22:01:57,113 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 117 states and 147 transitions. cyclomatic complexity: 39 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2024-10-31 22:01:57,149 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 117 states and 147 transitions. cyclomatic complexity: 39. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 164 states and 204 transitions. Complement of second has 7 states. [2024-10-31 22:01:57,150 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 [2024-10-31 22:01:57,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2024-10-31 22:01:57,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2024-10-31 22:01:57,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 28 letters. Loop has 4 letters. [2024-10-31 22:01:57,150 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:57,151 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:01:57,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:57,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:57,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:57,179 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:57,233 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:01:57,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:57,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:57,252 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 [2024-10-31 22:01:57,253 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 117 states and 147 transitions. cyclomatic complexity: 39 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2024-10-31 22:01:57,288 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 117 states and 147 transitions. cyclomatic complexity: 39. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 198 states and 239 transitions. Complement of second has 7 states. [2024-10-31 22:01:57,289 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 [2024-10-31 22:01:57,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2024-10-31 22:01:57,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2024-10-31 22:01:57,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 28 letters. Loop has 4 letters. [2024-10-31 22:01:57,291 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:57,291 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:01:57,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:57,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:57,325 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:57,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:57,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:01:57,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:57,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:57,387 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 [2024-10-31 22:01:57,387 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 117 states and 147 transitions. cyclomatic complexity: 39 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2024-10-31 22:01:57,422 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 117 states and 147 transitions. cyclomatic complexity: 39. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 176 states and 219 transitions. Complement of second has 8 states. [2024-10-31 22:01:57,422 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 [2024-10-31 22:01:57,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2024-10-31 22:01:57,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2024-10-31 22:01:57,423 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 28 letters. Loop has 4 letters. [2024-10-31 22:01:57,424 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:57,424 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 32 letters. Loop has 4 letters. [2024-10-31 22:01:57,424 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:57,424 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 28 letters. Loop has 8 letters. [2024-10-31 22:01:57,424 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:57,425 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 176 states and 219 transitions. [2024-10-31 22:01:57,426 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 30 [2024-10-31 22:01:57,427 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 176 states to 121 states and 151 transitions. [2024-10-31 22:01:57,427 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-10-31 22:01:57,428 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-10-31 22:01:57,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 121 states and 151 transitions. [2024-10-31 22:01:57,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:01:57,428 INFO L218 hiAutomatonCegarLoop]: Abstraction has 121 states and 151 transitions. [2024-10-31 22:01:57,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states and 151 transitions. [2024-10-31 22:01:57,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 76. [2024-10-31 22:01:57,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 76 states have (on average 1.25) internal successors, (95), 75 states have internal predecessors, (95), 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) [2024-10-31 22:01:57,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 95 transitions. [2024-10-31 22:01:57,433 INFO L240 hiAutomatonCegarLoop]: Abstraction has 76 states and 95 transitions. [2024-10-31 22:01:57,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:57,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-31 22:01:57,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-31 22:01:57,434 INFO L87 Difference]: Start difference. First operand 76 states and 95 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 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) [2024-10-31 22:01:57,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:57,537 INFO L93 Difference]: Finished difference Result 158 states and 194 transitions. [2024-10-31 22:01:57,537 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 158 states and 194 transitions. [2024-10-31 22:01:57,538 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 73 [2024-10-31 22:01:57,539 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 158 states to 153 states and 188 transitions. [2024-10-31 22:01:57,539 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-10-31 22:01:57,539 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-10-31 22:01:57,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 153 states and 188 transitions. [2024-10-31 22:01:57,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:01:57,540 INFO L218 hiAutomatonCegarLoop]: Abstraction has 153 states and 188 transitions. [2024-10-31 22:01:57,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states and 188 transitions. [2024-10-31 22:01:57,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 104. [2024-10-31 22:01:57,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 104 states have (on average 1.2115384615384615) internal successors, (126), 103 states have internal predecessors, (126), 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) [2024-10-31 22:01:57,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 126 transitions. [2024-10-31 22:01:57,544 INFO L240 hiAutomatonCegarLoop]: Abstraction has 104 states and 126 transitions. [2024-10-31 22:01:57,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-31 22:01:57,545 INFO L425 stractBuchiCegarLoop]: Abstraction has 104 states and 126 transitions. [2024-10-31 22:01:57,545 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-10-31 22:01:57,545 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 126 transitions. [2024-10-31 22:01:57,546 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2024-10-31 22:01:57,546 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:01:57,546 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:01:57,547 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2024-10-31 22:01:57,547 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [11, 10, 10, 6, 5, 1, 1] [2024-10-31 22:01:57,547 INFO L745 eck$LassoCheckResult]: Stem: 4223#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 4224#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 4218#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4220#L12 assume !(10 == main_~i~0#1); 4243#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 4241#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4233#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4234#L12 [2024-10-31 22:01:57,547 INFO L747 eck$LassoCheckResult]: Loop: 4234#L12 assume !(10 == main_~i~0#1); 4262#L12-2 assume !(0 == main_~i~0#1); 4261#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4260#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4259#L12 assume !(10 == main_~i~0#1); 4258#L12-2 assume !(0 == main_~i~0#1); 4257#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4256#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4255#L12 assume !(10 == main_~i~0#1); 4254#L12-2 assume !(0 == main_~i~0#1); 4253#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4252#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4251#L12 assume !(10 == main_~i~0#1); 4250#L12-2 assume !(0 == main_~i~0#1); 4249#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4248#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4247#L12 assume !(10 == main_~i~0#1); 4237#L12-2 assume !(0 == main_~i~0#1); 4240#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4239#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4236#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 4238#L12-2 assume !(0 == main_~i~0#1); 4302#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4301#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4300#L12 assume !(10 == main_~i~0#1); 4299#L12-2 assume !(0 == main_~i~0#1); 4298#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4297#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4296#L12 assume !(10 == main_~i~0#1); 4295#L12-2 assume !(0 == main_~i~0#1); 4294#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4293#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4292#L12 assume !(10 == main_~i~0#1); 4291#L12-2 assume !(0 == main_~i~0#1); 4290#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4289#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4287#L12 assume !(10 == main_~i~0#1); 4286#L12-2 assume !(0 == main_~i~0#1); 4284#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4285#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4220#L12 assume !(10 == main_~i~0#1); 4243#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 4241#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4233#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4234#L12 [2024-10-31 22:01:57,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:57,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1810724061, now seen corresponding path program 2 times [2024-10-31 22:01:57,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:57,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904908267] [2024-10-31 22:01:57,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:57,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:57,552 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:57,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:57,555 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:57,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:57,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1466490324, now seen corresponding path program 1 times [2024-10-31 22:01:57,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:57,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088648675] [2024-10-31 22:01:57,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:57,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:57,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:57,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2024-10-31 22:01:57,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2024-10-31 22:01:57,748 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 130 proven. 45 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-10-31 22:01:57,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:57,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088648675] [2024-10-31 22:01:57,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088648675] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:01:57,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494514228] [2024-10-31 22:01:57,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:57,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:01:57,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:57,750 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:01:57,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-10-31 22:01:57,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:57,789 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:01:57,790 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:57,844 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 130 proven. 45 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-10-31 22:01:57,844 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:01:57,949 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 130 proven. 45 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-10-31 22:01:57,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494514228] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:01:57,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:01:57,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2024-10-31 22:01:57,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889624576] [2024-10-31 22:01:57,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:01:57,950 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:01:57,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:57,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 22:01:57,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:01:57,951 INFO L87 Difference]: Start difference. First operand 104 states and 126 transitions. cyclomatic complexity: 26 Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 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) [2024-10-31 22:01:58,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:58,049 INFO L93 Difference]: Finished difference Result 198 states and 243 transitions. [2024-10-31 22:01:58,049 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 198 states and 243 transitions. [2024-10-31 22:01:58,050 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 72 [2024-10-31 22:01:58,052 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 198 states to 173 states and 213 transitions. [2024-10-31 22:01:58,052 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-10-31 22:01:58,052 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-10-31 22:01:58,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 173 states and 213 transitions. [2024-10-31 22:01:58,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:01:58,053 INFO L218 hiAutomatonCegarLoop]: Abstraction has 173 states and 213 transitions. [2024-10-31 22:01:58,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states and 213 transitions. [2024-10-31 22:01:58,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 164. [2024-10-31 22:01:58,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 164 states have (on average 1.225609756097561) internal successors, (201), 163 states have internal predecessors, (201), 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) [2024-10-31 22:01:58,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 201 transitions. [2024-10-31 22:01:58,057 INFO L240 hiAutomatonCegarLoop]: Abstraction has 164 states and 201 transitions. [2024-10-31 22:01:58,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:01:58,058 INFO L425 stractBuchiCegarLoop]: Abstraction has 164 states and 201 transitions. [2024-10-31 22:01:58,058 INFO L332 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2024-10-31 22:01:58,058 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 164 states and 201 transitions. [2024-10-31 22:01:58,059 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 69 [2024-10-31 22:01:58,059 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:01:58,059 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:01:58,060 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2024-10-31 22:01:58,060 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [16, 15, 15, 10, 6, 1, 1] [2024-10-31 22:01:58,060 INFO L745 eck$LassoCheckResult]: Stem: 4798#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 4799#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 4793#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4795#L12 assume !(10 == main_~i~0#1); 4837#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 4836#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4807#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4808#L12 [2024-10-31 22:01:58,061 INFO L747 eck$LassoCheckResult]: Loop: 4808#L12 assume !(10 == main_~i~0#1); 4829#L12-2 assume !(0 == main_~i~0#1); 4828#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4827#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4826#L12 assume !(10 == main_~i~0#1); 4825#L12-2 assume !(0 == main_~i~0#1); 4824#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4823#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4822#L12 assume !(10 == main_~i~0#1); 4821#L12-2 assume !(0 == main_~i~0#1); 4820#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4819#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4818#L12 assume !(10 == main_~i~0#1); 4817#L12-2 assume !(0 == main_~i~0#1); 4816#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4815#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4814#L12 assume !(10 == main_~i~0#1); 4811#L12-2 assume !(0 == main_~i~0#1); 4813#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4812#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4810#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 4790#L12-2 assume !(0 == main_~i~0#1); 4791#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4796#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4797#L12 assume !(10 == main_~i~0#1); 4804#L12-2 assume !(0 == main_~i~0#1); 4953#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4952#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4951#L12 assume !(10 == main_~i~0#1); 4950#L12-2 assume !(0 == main_~i~0#1); 4949#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4948#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4947#L12 assume !(10 == main_~i~0#1); 4946#L12-2 assume !(0 == main_~i~0#1); 4945#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4944#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4943#L12 assume !(10 == main_~i~0#1); 4942#L12-2 assume !(0 == main_~i~0#1); 4941#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4940#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4939#L12 assume !(10 == main_~i~0#1); 4938#L12-2 assume !(0 == main_~i~0#1); 4937#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4936#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4935#L12 assume !(10 == main_~i~0#1); 4934#L12-2 assume !(0 == main_~i~0#1); 4933#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4932#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4931#L12 assume !(10 == main_~i~0#1); 4930#L12-2 assume !(0 == main_~i~0#1); 4929#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4928#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4927#L12 assume !(10 == main_~i~0#1); 4926#L12-2 assume !(0 == main_~i~0#1); 4925#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4924#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4844#L12 assume !(10 == main_~i~0#1); 4923#L12-2 assume !(0 == main_~i~0#1); 4888#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4843#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4795#L12 assume !(10 == main_~i~0#1); 4837#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 4836#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4807#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4808#L12 [2024-10-31 22:01:58,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:58,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1810724061, now seen corresponding path program 3 times [2024-10-31 22:01:58,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:58,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068462227] [2024-10-31 22:01:58,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:58,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:58,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:58,065 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:58,068 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:58,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:58,069 INFO L85 PathProgramCache]: Analyzing trace with hash 726843037, now seen corresponding path program 2 times [2024-10-31 22:01:58,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:58,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336280845] [2024-10-31 22:01:58,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:58,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:58,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:58,082 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:58,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:58,099 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:58,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:58,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1110135673, now seen corresponding path program 4 times [2024-10-31 22:01:58,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:58,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783465245] [2024-10-31 22:01:58,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:58,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:58,290 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 296 proven. 55 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-10-31 22:01:58,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:58,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783465245] [2024-10-31 22:01:58,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783465245] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:01:58,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703498688] [2024-10-31 22:01:58,291 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-31 22:01:58,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:01:58,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:58,293 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:01:58,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-10-31 22:01:58,345 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-31 22:01:58,345 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:01:58,346 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:01:58,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:58,394 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 296 proven. 55 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-10-31 22:01:58,394 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:01:58,504 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 296 proven. 55 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-10-31 22:01:58,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703498688] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:01:58,505 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:01:58,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2024-10-31 22:01:58,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767666769] [2024-10-31 22:01:58,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:01:58,907 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:58,907 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:58,907 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:58,907 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:58,908 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:01:58,908 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:58,908 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:58,908 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:58,908 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration10_Loop [2024-10-31 22:01:58,908 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:58,908 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:58,909 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:58,913 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:58,919 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:58,924 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:58,974 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:58,974 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:01:58,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:58,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:58,977 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:58,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2024-10-31 22:01:58,979 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:58,979 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:59,004 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:01:59,004 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_17=1} Honda state: {v_rep~unnamed0~0~true_17=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:01:59,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:59,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:59,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:59,024 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:59,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2024-10-31 22:01:59,027 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:59,027 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:59,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:59,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:59,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:59,071 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:59,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2024-10-31 22:01:59,074 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:01:59,074 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:59,091 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:01:59,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:59,108 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:59,108 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:59,109 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:59,109 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:59,109 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:01:59,109 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:59,109 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:59,109 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:59,109 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration10_Loop [2024-10-31 22:01:59,109 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:59,109 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:59,110 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:59,115 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:59,120 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:59,126 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:59,177 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:59,177 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:01:59,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:59,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:59,179 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:59,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2024-10-31 22:01:59,181 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:01:59,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:59,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:59,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:59,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:59,201 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:01:59,201 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:01:59,205 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:59,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:59,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:59,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:59,225 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:59,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2024-10-31 22:01:59,228 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 [2024-10-31 22:01:59,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:59,243 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:01:59,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:59,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:59,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:59,244 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:01:59,244 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:01:59,247 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:01:59,256 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:01:59,256 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:01:59,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:59,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:59,260 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:59,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2024-10-31 22:01:59,261 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:01:59,262 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:01:59,262 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:01:59,262 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-10-31 22:01:59,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:59,280 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:01:59,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:59,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:59,302 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:59,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:59,337 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 22:01:59,338 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:59,571 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 260 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-10-31 22:01:59,573 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2024-10-31 22:01:59,573 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 164 states and 201 transitions. cyclomatic complexity: 41 Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 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) [2024-10-31 22:01:59,713 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 164 states and 201 transitions. cyclomatic complexity: 41. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 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) Result 489 states and 580 transitions. Complement of second has 17 states. [2024-10-31 22:01:59,713 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 [2024-10-31 22:01:59,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 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) [2024-10-31 22:01:59,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 39 transitions. [2024-10-31 22:01:59,714 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 39 transitions. Stem has 7 letters. Loop has 64 letters. [2024-10-31 22:01:59,714 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:59,714 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:01:59,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:59,733 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:59,734 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:59,764 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 22:01:59,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:59,956 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 260 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-10-31 22:01:59,957 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 9 loop predicates [2024-10-31 22:01:59,957 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 164 states and 201 transitions. cyclomatic complexity: 41 Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 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) [2024-10-31 22:02:00,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2024-10-31 22:02:00,299 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 164 states and 201 transitions. cyclomatic complexity: 41. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 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) Result 784 states and 937 transitions. Complement of second has 31 states. [2024-10-31 22:02:00,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 16 states 1 stem states 14 non-accepting loop states 1 accepting loop states [2024-10-31 22:02:00,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 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) [2024-10-31 22:02:00,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 67 transitions. [2024-10-31 22:02:00,301 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 67 transitions. Stem has 7 letters. Loop has 64 letters. [2024-10-31 22:02:00,301 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:02:00,301 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:02:00,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:00,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:00,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:02:00,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:02:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:00,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 22:02:00,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:02:00,627 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 260 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-10-31 22:02:00,628 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 9 loop predicates [2024-10-31 22:02:00,628 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 164 states and 201 transitions. cyclomatic complexity: 41 Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 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) [2024-10-31 22:02:00,963 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 164 states and 201 transitions. cyclomatic complexity: 41. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 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) Result 1329 states and 1557 transitions. Complement of second has 174 states. [2024-10-31 22:02:00,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 1 stem states 12 non-accepting loop states 1 accepting loop states [2024-10-31 22:02:00,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 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) [2024-10-31 22:02:00,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 76 transitions. [2024-10-31 22:02:00,967 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 76 transitions. Stem has 7 letters. Loop has 64 letters. [2024-10-31 22:02:00,972 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:02:00,972 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:02:00,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:00,994 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:02:00,994 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:02:01,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:01,027 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 22:02:01,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:02:01,217 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 260 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-10-31 22:02:01,218 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 9 loop predicates [2024-10-31 22:02:01,218 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 164 states and 201 transitions. cyclomatic complexity: 41 Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 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) [2024-10-31 22:02:01,584 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 164 states and 201 transitions. cyclomatic complexity: 41. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 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) Result 1639 states and 1887 transitions. Complement of second has 195 states. [2024-10-31 22:02:01,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 16 states 1 stem states 14 non-accepting loop states 1 accepting loop states [2024-10-31 22:02:01,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 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) [2024-10-31 22:02:01,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 78 transitions. [2024-10-31 22:02:01,586 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 78 transitions. Stem has 7 letters. Loop has 64 letters. [2024-10-31 22:02:01,587 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:02:01,587 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 78 transitions. Stem has 71 letters. Loop has 64 letters. [2024-10-31 22:02:01,589 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:02:01,589 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 78 transitions. Stem has 7 letters. Loop has 128 letters. [2024-10-31 22:02:01,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:02:01,592 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1639 states and 1887 transitions. [2024-10-31 22:02:01,602 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 307 [2024-10-31 22:02:01,605 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1639 states to 522 states and 614 transitions. [2024-10-31 22:02:01,605 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-10-31 22:02:01,605 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 133 [2024-10-31 22:02:01,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 522 states and 614 transitions. [2024-10-31 22:02:01,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:02:01,606 INFO L218 hiAutomatonCegarLoop]: Abstraction has 522 states and 614 transitions. [2024-10-31 22:02:01,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states and 614 transitions. [2024-10-31 22:02:01,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 163. [2024-10-31 22:02:01,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 163 states have (on average 1.2085889570552146) internal successors, (197), 162 states have internal predecessors, (197), 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) [2024-10-31 22:02:01,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 197 transitions. [2024-10-31 22:02:01,612 INFO L240 hiAutomatonCegarLoop]: Abstraction has 163 states and 197 transitions. [2024-10-31 22:02:01,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:01,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 22:02:01,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:02:01,614 INFO L87 Difference]: Start difference. First operand 163 states and 197 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 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) [2024-10-31 22:02:01,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:01,697 INFO L93 Difference]: Finished difference Result 398 states and 454 transitions. [2024-10-31 22:02:01,697 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 398 states and 454 transitions. [2024-10-31 22:02:01,699 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 195 [2024-10-31 22:02:01,701 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 398 states to 298 states and 353 transitions. [2024-10-31 22:02:01,701 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 79 [2024-10-31 22:02:01,701 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 79 [2024-10-31 22:02:01,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 298 states and 353 transitions. [2024-10-31 22:02:01,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:02:01,702 INFO L218 hiAutomatonCegarLoop]: Abstraction has 298 states and 353 transitions. [2024-10-31 22:02:01,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states and 353 transitions. [2024-10-31 22:02:01,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 152. [2024-10-31 22:02:01,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 152 states have (on average 1.2039473684210527) internal successors, (183), 151 states have internal predecessors, (183), 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) [2024-10-31 22:02:01,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 183 transitions. [2024-10-31 22:02:01,709 INFO L240 hiAutomatonCegarLoop]: Abstraction has 152 states and 183 transitions. [2024-10-31 22:02:01,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:02:01,710 INFO L425 stractBuchiCegarLoop]: Abstraction has 152 states and 183 transitions. [2024-10-31 22:02:01,710 INFO L332 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2024-10-31 22:02:01,711 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 152 states and 183 transitions. [2024-10-31 22:02:01,711 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 88 [2024-10-31 22:02:01,712 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:02:01,712 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:02:01,712 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2024-10-31 22:02:01,713 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [21, 20, 19, 11, 10, 2, 1] [2024-10-31 22:02:01,713 INFO L745 eck$LassoCheckResult]: Stem: 11568#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 11569#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 11573#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11583#L12 assume !(10 == main_~i~0#1); 11586#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 11584#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11577#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11578#L12 [2024-10-31 22:02:01,714 INFO L747 eck$LassoCheckResult]: Loop: 11578#L12 assume !(10 == main_~i~0#1); 11666#L12-2 assume !(0 == main_~i~0#1); 11665#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11664#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11663#L12 assume !(10 == main_~i~0#1); 11662#L12-2 assume !(0 == main_~i~0#1); 11661#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11660#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11659#L12 assume !(10 == main_~i~0#1); 11658#L12-2 assume !(0 == main_~i~0#1); 11657#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11656#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11655#L12 assume !(10 == main_~i~0#1); 11652#L12-2 assume !(0 == main_~i~0#1); 11654#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11653#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11651#L12 assume !(10 == main_~i~0#1); 11560#L12-2 assume !(0 == main_~i~0#1); 11561#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11564#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11565#L12 assume !(10 == main_~i~0#1); 11650#L12-2 assume !(0 == main_~i~0#1); 11649#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11648#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11647#L12 assume !(10 == main_~i~0#1); 11646#L12-2 assume !(0 == main_~i~0#1); 11645#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11644#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11643#L12 assume !(10 == main_~i~0#1); 11642#L12-2 assume !(0 == main_~i~0#1); 11641#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11640#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11639#L12 assume !(10 == main_~i~0#1); 11638#L12-2 assume !(0 == main_~i~0#1); 11637#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11636#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11635#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 11634#L12-2 assume !(0 == main_~i~0#1); 11633#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11632#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11631#L12 assume !(10 == main_~i~0#1); 11630#L12-2 assume !(0 == main_~i~0#1); 11629#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11628#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11627#L12 assume !(10 == main_~i~0#1); 11626#L12-2 assume !(0 == main_~i~0#1); 11625#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11624#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11623#L12 assume !(10 == main_~i~0#1); 11622#L12-2 assume !(0 == main_~i~0#1); 11621#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11620#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11619#L12 assume !(10 == main_~i~0#1); 11618#L12-2 assume !(0 == main_~i~0#1); 11617#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11616#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11615#L12 assume !(10 == main_~i~0#1); 11614#L12-2 assume !(0 == main_~i~0#1); 11613#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11612#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11611#L12 assume !(10 == main_~i~0#1); 11610#L12-2 assume !(0 == main_~i~0#1); 11609#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11608#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11607#L12 assume !(10 == main_~i~0#1); 11606#L12-2 assume !(0 == main_~i~0#1); 11605#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11604#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11603#L12 assume !(10 == main_~i~0#1); 11602#L12-2 assume !(0 == main_~i~0#1); 11601#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11600#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11596#L12 assume !(10 == main_~i~0#1); 11598#L12-2 assume !(0 == main_~i~0#1); 11597#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11595#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11594#L12 assume !(10 == main_~i~0#1); 11592#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 11593#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11668#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11579#L12 assume !(10 == main_~i~0#1); 11589#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 11584#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11577#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11578#L12 [2024-10-31 22:02:01,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:01,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1810724061, now seen corresponding path program 4 times [2024-10-31 22:02:01,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:01,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542234330] [2024-10-31 22:02:01,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:01,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:01,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:01,720 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:01,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:01,723 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:02:01,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:01,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1840948782, now seen corresponding path program 3 times [2024-10-31 22:02:01,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:01,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688792163] [2024-10-31 22:02:01,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:01,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:01,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:01,806 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-31 22:02:01,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:01,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688792163] [2024-10-31 22:02:01,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688792163] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:01,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:01,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:02:01,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311703353] [2024-10-31 22:02:01,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:01,808 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:02:01,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:01,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:02:01,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:02:01,809 INFO L87 Difference]: Start difference. First operand 152 states and 183 transitions. cyclomatic complexity: 36 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:01,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:01,834 INFO L93 Difference]: Finished difference Result 152 states and 181 transitions. [2024-10-31 22:02:01,834 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 152 states and 181 transitions. [2024-10-31 22:02:01,835 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2024-10-31 22:02:01,836 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 152 states to 144 states and 170 transitions. [2024-10-31 22:02:01,836 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2024-10-31 22:02:01,837 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2024-10-31 22:02:01,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 144 states and 170 transitions. [2024-10-31 22:02:01,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:02:01,837 INFO L218 hiAutomatonCegarLoop]: Abstraction has 144 states and 170 transitions. [2024-10-31 22:02:01,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states and 170 transitions. [2024-10-31 22:02:01,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 101. [2024-10-31 22:02:01,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 101 states have (on average 1.1584158415841583) internal successors, (117), 100 states have internal predecessors, (117), 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) [2024-10-31 22:02:01,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 117 transitions. [2024-10-31 22:02:01,840 INFO L240 hiAutomatonCegarLoop]: Abstraction has 101 states and 117 transitions. [2024-10-31 22:02:01,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:02:01,841 INFO L425 stractBuchiCegarLoop]: Abstraction has 101 states and 117 transitions. [2024-10-31 22:02:01,841 INFO L332 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2024-10-31 22:02:01,841 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 101 states and 117 transitions. [2024-10-31 22:02:01,841 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2024-10-31 22:02:01,842 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:02:01,842 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:02:01,843 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 6, 5, 4, 1, 1, 1] [2024-10-31 22:02:01,843 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [20, 19, 19, 10, 10, 1, 1] [2024-10-31 22:02:01,843 INFO L745 eck$LassoCheckResult]: Stem: 11878#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 11879#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 11882#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11891#L12 assume !(10 == main_~i~0#1); 11892#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 11893#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11874#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11875#L12 assume !(10 == main_~i~0#1); 11927#L12-2 assume !(0 == main_~i~0#1); 11926#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11925#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11924#L12 assume !(10 == main_~i~0#1); 11923#L12-2 assume !(0 == main_~i~0#1); 11922#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11921#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11920#L12 assume !(10 == main_~i~0#1); 11919#L12-2 assume !(0 == main_~i~0#1); 11918#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11917#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11916#L12 assume !(10 == main_~i~0#1); 11912#L12-2 assume !(0 == main_~i~0#1); 11915#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11914#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11911#L12 assume !(10 == main_~i~0#1); 11894#L12-2 [2024-10-31 22:02:01,843 INFO L747 eck$LassoCheckResult]: Loop: 11894#L12-2 assume !(0 == main_~i~0#1); 11887#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11888#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11913#L12 assume !(10 == main_~i~0#1); 11910#L12-2 assume !(0 == main_~i~0#1); 11909#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11908#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11907#L12 assume !(10 == main_~i~0#1); 11906#L12-2 assume !(0 == main_~i~0#1); 11905#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11904#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11903#L12 assume !(10 == main_~i~0#1); 11902#L12-2 assume !(0 == main_~i~0#1); 11901#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11900#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11899#L12 assume !(10 == main_~i~0#1); 11898#L12-2 assume !(0 == main_~i~0#1); 11897#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11896#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11895#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 11871#L12-2 assume !(0 == main_~i~0#1); 11872#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11876#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11877#L12 assume !(10 == main_~i~0#1); 11969#L12-2 assume !(0 == main_~i~0#1); 11968#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11967#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11966#L12 assume !(10 == main_~i~0#1); 11965#L12-2 assume !(0 == main_~i~0#1); 11964#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11963#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11962#L12 assume !(10 == main_~i~0#1); 11961#L12-2 assume !(0 == main_~i~0#1); 11960#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11959#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11958#L12 assume !(10 == main_~i~0#1); 11957#L12-2 assume !(0 == main_~i~0#1); 11956#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11955#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11954#L12 assume !(10 == main_~i~0#1); 11953#L12-2 assume !(0 == main_~i~0#1); 11952#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11951#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11950#L12 assume !(10 == main_~i~0#1); 11949#L12-2 assume !(0 == main_~i~0#1); 11948#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11947#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11946#L12 assume !(10 == main_~i~0#1); 11945#L12-2 assume !(0 == main_~i~0#1); 11944#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11943#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11942#L12 assume !(10 == main_~i~0#1); 11941#L12-2 assume !(0 == main_~i~0#1); 11940#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11939#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11936#L12 assume !(10 == main_~i~0#1); 11938#L12-2 assume !(0 == main_~i~0#1); 11937#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11935#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11934#L12 assume !(10 == main_~i~0#1); 11884#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 11933#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11930#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11928#L12 assume !(10 == main_~i~0#1); 11927#L12-2 assume !(0 == main_~i~0#1); 11926#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11925#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11924#L12 assume !(10 == main_~i~0#1); 11923#L12-2 assume !(0 == main_~i~0#1); 11922#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11921#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11920#L12 assume !(10 == main_~i~0#1); 11919#L12-2 assume !(0 == main_~i~0#1); 11918#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11917#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11916#L12 assume !(10 == main_~i~0#1); 11912#L12-2 assume !(0 == main_~i~0#1); 11915#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11914#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11911#L12 assume !(10 == main_~i~0#1); 11894#L12-2 [2024-10-31 22:02:01,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:01,844 INFO L85 PathProgramCache]: Analyzing trace with hash 781927031, now seen corresponding path program 1 times [2024-10-31 22:02:01,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:01,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629745872] [2024-10-31 22:02:01,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:01,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:01,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:01,849 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:01,853 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:02:01,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:01,854 INFO L85 PathProgramCache]: Analyzing trace with hash 921517193, now seen corresponding path program 4 times [2024-10-31 22:02:01,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:01,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985726101] [2024-10-31 22:02:01,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:01,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:01,867 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:01,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:01,880 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:02:01,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:01,881 INFO L85 PathProgramCache]: Analyzing trace with hash 933372671, now seen corresponding path program 5 times [2024-10-31 22:02:01,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:01,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624615770] [2024-10-31 22:02:01,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:01,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:01,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:01,904 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:01,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:01,922 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:02:02,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:02,604 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:02,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 31.10 10:02:02 BoogieIcfgContainer [2024-10-31 22:02:02,657 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-31 22:02:02,658 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:02:02,658 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:02:02,658 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:02:02,658 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:01:48" (3/4) ... [2024-10-31 22:02:02,661 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-31 22:02:02,727 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:02:02,727 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:02:02,728 INFO L158 Benchmark]: Toolchain (without parser) took 14402.44ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 97.1MB in the beginning and 90.4MB in the end (delta: 6.7MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. [2024-10-31 22:02:02,728 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 134.2MB. Free memory was 79.3MB in the beginning and 79.2MB in the end (delta: 151.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:02:02,729 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.03ms. Allocated memory is still 134.2MB. Free memory was 97.1MB in the beginning and 85.8MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-31 22:02:02,729 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.25ms. Allocated memory is still 134.2MB. Free memory was 85.8MB in the beginning and 84.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:02:02,729 INFO L158 Benchmark]: Boogie Preprocessor took 29.79ms. Allocated memory is still 134.2MB. Free memory was 84.5MB in the beginning and 82.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:02:02,729 INFO L158 Benchmark]: RCFGBuilder took 282.59ms. Allocated memory is still 134.2MB. Free memory was 82.9MB in the beginning and 74.1MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-31 22:02:02,730 INFO L158 Benchmark]: BuchiAutomizer took 13712.39ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 74.1MB in the beginning and 94.6MB in the end (delta: -20.5MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2024-10-31 22:02:02,731 INFO L158 Benchmark]: Witness Printer took 69.82ms. Allocated memory is still 165.7MB. Free memory was 93.6MB in the beginning and 90.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:02:02,732 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64ms. Allocated memory is still 134.2MB. Free memory was 79.3MB in the beginning and 79.2MB in the end (delta: 151.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.03ms. Allocated memory is still 134.2MB. Free memory was 97.1MB in the beginning and 85.8MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.25ms. Allocated memory is still 134.2MB. Free memory was 85.8MB in the beginning and 84.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.79ms. Allocated memory is still 134.2MB. Free memory was 84.5MB in the beginning and 82.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 282.59ms. Allocated memory is still 134.2MB. Free memory was 82.9MB in the beginning and 74.1MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 13712.39ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 74.1MB in the beginning and 94.6MB in the end (delta: -20.5MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Witness Printer took 69.82ms. Allocated memory is still 165.7MB. Free memory was 93.6MB in the beginning and 90.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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 18 terminating modules (9 trivial, 5 deterministic, 4 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function (((long) -2 * i) + 1) and consists of 5 locations. One deterministic module has affine ranking function (((long) -2 * i) + 19) and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function (((long) -2 * i) + 1) and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One nondeterministic module has affine ranking function (((long) -2 * i) + 1) and consists of 4 locations. One nondeterministic module has affine ranking function (((long) -2 * i) + 19) and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 16 locations. 9 modules have a trivial ranking function, the largest among these consists of 13 locations. The remainder module has 101 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.6s and 12 iterations. TraceHistogramMax:21. Analysis of lassos took 8.3s. Construction of modules took 0.9s. Büchi inclusion checks took 3.9s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 18. Automata minimization 0.1s AutomataMinimizationTime, 18 MinimizatonAttempts, 766 StatesRemovedByMinimization, 18 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [5, 0, 3, 1, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 220/480 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 523 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 505 mSDsluCounter, 229 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 152 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 918 IncrementalHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 152 mSolverCounterUnsat, 201 mSDtfsCounter, 918 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT5 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax182 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq184 hnf91 smp94 dnf122 smp94 tf111 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 32ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 9 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 15]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] int up; [L8] i = __VERIFIER_nondet_int() [L9] up = 0 VAL [up=0] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=0, up=0] [L12] COND FALSE !(i == 10) VAL [i=0, up=0] [L15] COND TRUE i == 0 [L16] up = 1 VAL [i=0, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=1, up=1] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=1, up=1] [L12] COND FALSE !(i == 10) VAL [i=1, up=1] [L15] COND FALSE !(i == 0) VAL [i=1, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=2, up=1] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=2, up=1] [L12] COND FALSE !(i == 10) VAL [i=2, up=1] [L15] COND FALSE !(i == 0) VAL [i=2, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=3, up=1] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=3, up=1] [L12] COND FALSE !(i == 10) VAL [i=3, up=1] [L15] COND FALSE !(i == 0) VAL [i=3, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=4, up=1] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=4, up=1] [L12] COND FALSE !(i == 10) VAL [i=4, up=1] [L15] COND FALSE !(i == 0) VAL [i=4, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=5, up=1] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=5, up=1] [L12] COND FALSE !(i == 10) VAL [i=5, up=1] Loop: [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND TRUE i == 10 [L13] up = 0 [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND TRUE i == 0 [L16] up = 1 [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 15]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int up; [L8] i = __VERIFIER_nondet_int() [L9] up = 0 VAL [up=0] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=0, up=0] [L12] COND FALSE !(i == 10) VAL [i=0, up=0] [L15] COND TRUE i == 0 [L16] up = 1 VAL [i=0, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=1, up=1] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=1, up=1] [L12] COND FALSE !(i == 10) VAL [i=1, up=1] [L15] COND FALSE !(i == 0) VAL [i=1, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=2, up=1] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=2, up=1] [L12] COND FALSE !(i == 10) VAL [i=2, up=1] [L15] COND FALSE !(i == 0) VAL [i=2, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=3, up=1] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=3, up=1] [L12] COND FALSE !(i == 10) VAL [i=3, up=1] [L15] COND FALSE !(i == 0) VAL [i=3, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=4, up=1] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=4, up=1] [L12] COND FALSE !(i == 10) VAL [i=4, up=1] [L15] COND FALSE !(i == 0) VAL [i=4, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=5, up=1] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=5, up=1] [L12] COND FALSE !(i == 10) VAL [i=5, up=1] Loop: [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND TRUE i == 10 [L13] up = 0 [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND TRUE i == 0 [L16] up = 1 [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-10-31 22:02:02,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:02,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2024-10-31 22:02:03,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2024-10-31 22:02:03,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-10-31 22:02:03,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07a06df9-9b1c-493e-8564-d7b50e5ca08c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)