./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 e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/UpAndDown.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1a3ce217426a55eb46107f2cdf23c10dcc5d92a99768880786a980fae67c3971 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:14:18,419 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:14:18,534 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-06 22:14:18,541 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:14:18,542 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:14:18,583 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:14:18,583 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:14:18,584 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:14:18,585 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:14:18,590 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:14:18,591 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:14:18,592 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 22:14:18,592 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 22:14:18,594 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 22:14:18,594 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 22:14:18,594 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 22:14:18,595 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 22:14:18,596 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:14:18,596 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 22:14:18,596 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:14:18,597 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:14:18,597 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 22:14:18,598 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 22:14:18,598 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 22:14:18,599 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:14:18,599 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:14:18,599 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 22:14:18,600 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:14:18,600 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:14:18,601 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:14:18,602 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:14:18,602 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:14:18,603 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 22:14:18,603 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_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a3ce217426a55eb46107f2cdf23c10dcc5d92a99768880786a980fae67c3971 [2023-11-06 22:14:18,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:14:18,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:14:18,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:14:18,947 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:14:18,948 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:14:18,950 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-restricted-15/UpAndDown.c [2023-11-06 22:14:22,131 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:14:22,353 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:14:22,354 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/sv-benchmarks/c/termination-restricted-15/UpAndDown.c [2023-11-06 22:14:22,361 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/data/7bef3569e/da96988d73ac4256b82980a80ebee811/FLAG0901f3b9a [2023-11-06 22:14:22,380 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/data/7bef3569e/da96988d73ac4256b82980a80ebee811 [2023-11-06 22:14:22,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:14:22,388 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:14:22,391 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:14:22,391 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:14:22,397 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:14:22,398 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:14:22" (1/1) ... [2023-11-06 22:14:22,400 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@664cf2d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:22, skipping insertion in model container [2023-11-06 22:14:22,400 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:14:22" (1/1) ... [2023-11-06 22:14:22,421 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:14:22,573 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:14:22,579 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:14:22,597 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:14:22,610 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:14:22,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:22 WrapperNode [2023-11-06 22:14:22,611 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:14:22,612 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:14:22,613 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:14:22,613 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:14:22,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:22" (1/1) ... [2023-11-06 22:14:22,625 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:22" (1/1) ... [2023-11-06 22:14:22,642 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2023-11-06 22:14:22,643 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:14:22,644 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:14:22,644 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:14:22,644 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:14:22,653 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:22" (1/1) ... [2023-11-06 22:14:22,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:22" (1/1) ... [2023-11-06 22:14:22,654 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:22" (1/1) ... [2023-11-06 22:14:22,655 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:22" (1/1) ... [2023-11-06 22:14:22,657 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:22" (1/1) ... [2023-11-06 22:14:22,661 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:22" (1/1) ... [2023-11-06 22:14:22,662 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:22" (1/1) ... [2023-11-06 22:14:22,662 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:22" (1/1) ... [2023-11-06 22:14:22,664 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:14:22,665 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:14:22,665 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:14:22,665 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:14:22,666 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:22" (1/1) ... [2023-11-06 22:14:22,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:22,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:22,699 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:22,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 22:14:22,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:14:22,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:14:22,840 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:14:22,842 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:14:22,949 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:14:22,968 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:14:22,971 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:14:22,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:14:22 BoogieIcfgContainer [2023-11-06 22:14:22,973 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:14:22,975 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 22:14:22,975 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 22:14:22,980 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 22:14:22,980 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:14:22,981 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 10:14:22" (1/3) ... [2023-11-06 22:14:22,982 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@43f15cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:14:22, skipping insertion in model container [2023-11-06 22:14:22,983 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:14:22,983 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:22" (2/3) ... [2023-11-06 22:14:22,985 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@43f15cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:14:22, skipping insertion in model container [2023-11-06 22:14:22,986 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:14:22,986 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:14:22" (3/3) ... [2023-11-06 22:14:22,988 INFO L332 chiAutomizerObserver]: Analyzing ICFG UpAndDown.c [2023-11-06 22:14:23,051 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 22:14:23,051 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 22:14:23,051 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 22:14:23,052 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 22:14:23,052 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 22:14:23,052 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 22:14:23,052 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 22:14:23,052 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 22:14:23,056 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) [2023-11-06 22:14:23,070 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:14:23,070 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:14:23,070 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:14:23,075 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:14:23,075 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:14:23,075 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 22:14:23,075 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) [2023-11-06 22:14:23,077 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:14:23,077 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:14:23,077 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:14:23,078 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:14:23,078 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:14:23,086 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 4#L18-1true [2023-11-06 22:14:23,086 INFO L750 eck$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 [2023-11-06 22:14:23,092 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:23,092 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-06 22:14:23,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:23,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069947151] [2023-11-06 22:14:23,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:23,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:23,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:23,181 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:23,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:23,199 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:14:23,201 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:23,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 1 times [2023-11-06 22:14:23,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:23,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523319355] [2023-11-06 22:14:23,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:23,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:23,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:23,216 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:23,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:23,223 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:14:23,224 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:23,225 INFO L85 PathProgramCache]: Analyzing trace with hash 889694446, now seen corresponding path program 1 times [2023-11-06 22:14:23,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:23,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776743921] [2023-11-06 22:14:23,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:23,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:23,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:23,234 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:23,241 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:14:23,332 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:14:23,332 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:14:23,332 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:14:23,333 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:14:23,333 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:14:23,333 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:23,333 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:14:23,333 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:14:23,333 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration1_Loop [2023-11-06 22:14:23,334 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:14:23,334 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:14:23,353 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:23,379 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:23,384 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:23,394 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:23,482 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:14:23,483 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:14:23,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:23,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:23,493 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:23,498 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:14:23,499 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:23,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-06 22:14:23,519 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:14:23,519 INFO L440 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: [] [2023-11-06 22:14:23,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:23,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:23,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:23,525 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:23,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-06 22:14:23,529 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:14:23,529 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:23,549 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:14:23,549 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:14:23,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:23,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:23,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:23,573 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:23,582 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:14:23,583 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:23,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-06 22:14:23,607 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:14:23,607 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:14:23,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:23,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:23,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:23,616 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:23,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-06 22:14:23,621 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:14:23,622 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:23,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:23,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:23,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:23,647 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:23,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-06 22:14:23,650 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:14:23,650 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:23,689 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:14:23,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:23,701 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:14:23,701 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:14:23,701 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:14:23,701 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:14:23,701 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:14:23,702 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:23,702 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:14:23,702 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:14:23,702 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration1_Loop [2023-11-06 22:14:23,702 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:14:23,702 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:14:23,705 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:23,709 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:23,718 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:23,729 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:23,784 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:14:23,789 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:14:23,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:23,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:23,792 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:23,814 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:14:23,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-06 22:14:23,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:14:23,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:14:23,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:14:23,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:14:23,833 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:14:23,833 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:14:23,852 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:14:23,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-11-06 22:14:23,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:23,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:23,859 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:23,875 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:14:23,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-06 22:14:23,889 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:14:23,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:14:23,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:14:23,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:14:23,893 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:14:23,893 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:14:23,907 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:14:23,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:23,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:23,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:23,919 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:23,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-06 22:14:23,922 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:14:23,933 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:14:23,933 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:14:23,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:14:23,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:14:23,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:14:23,937 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:14:23,937 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:14:23,957 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:14:23,961 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:14:23,961 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 22:14:23,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:23,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:23,992 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:23,998 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:14:23,998 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:14:23,998 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:14:23,999 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2023-11-06 22:14:23,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-06 22:14:24,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:24,010 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:14:24,049 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:24,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:24,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:14:24,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:24,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:24,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:14:24,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:24,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:14:24,174 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:14:24,176 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) [2023-11-06 22:14:24,299 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 32 states and 51 transitions. Complement of second has 8 states. [2023-11-06 22:14:24,301 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 [2023-11-06 22:14:24,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:14:24,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2023-11-06 22:14:24,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-06 22:14:24,310 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:24,310 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-06 22:14:24,311 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:24,311 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 8 letters. [2023-11-06 22:14:24,311 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:24,312 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 51 transitions. [2023-11-06 22:14:24,316 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-06 22:14:24,321 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 19 states and 30 transitions. [2023-11-06 22:14:24,322 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-06 22:14:24,323 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-11-06 22:14:24,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 30 transitions. [2023-11-06 22:14:24,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:14:24,324 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 30 transitions. [2023-11-06 22:14:24,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 30 transitions. [2023-11-06 22:14:24,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2023-11-06 22:14:24,355 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) [2023-11-06 22:14:24,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 28 transitions. [2023-11-06 22:14:24,358 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 28 transitions. [2023-11-06 22:14:24,358 INFO L428 stractBuchiCegarLoop]: Abstraction has 18 states and 28 transitions. [2023-11-06 22:14:24,358 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 22:14:24,358 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 28 transitions. [2023-11-06 22:14:24,359 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-06 22:14:24,359 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:14:24,359 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:14:24,360 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-06 22:14:24,360 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:14:24,360 INFO L748 eck$LassoCheckResult]: Stem: 96#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 97#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; 101#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 93#L12 [2023-11-06 22:14:24,361 INFO L750 eck$LassoCheckResult]: Loop: 93#L12 assume !(10 == main_~i~0#1); 102#L12-2 assume !(0 == main_~i~0#1); 103#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 92#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 93#L12 [2023-11-06 22:14:24,361 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:24,361 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-06 22:14:24,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:24,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705665635] [2023-11-06 22:14:24,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:24,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:24,368 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:24,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:24,372 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:14:24,373 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:24,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1422136, now seen corresponding path program 1 times [2023-11-06 22:14:24,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:24,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363022768] [2023-11-06 22:14:24,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:24,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:24,381 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:24,387 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:14:24,387 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:24,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1810725983, now seen corresponding path program 1 times [2023-11-06 22:14:24,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:24,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240014036] [2023-11-06 22:14:24,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:24,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:24,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:14:24,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:14:24,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240014036] [2023-11-06 22:14:24,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240014036] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:14:24,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:14:24,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:14:24,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597816053] [2023-11-06 22:14:24,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:14:24,509 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:14:24,509 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:14:24,509 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:14:24,509 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:14:24,509 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:14:24,509 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:24,510 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:14:24,510 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:14:24,510 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration2_Loop [2023-11-06 22:14:24,510 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:14:24,510 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:14:24,512 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:24,516 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:24,527 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:24,530 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:24,645 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:14:24,645 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:14:24,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:24,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:24,647 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:24,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-06 22:14:24,655 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:14:24,656 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:24,677 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:14:24,677 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:14:24,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:24,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:24,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:24,691 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:24,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-06 22:14:24,694 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:14:24,694 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:24,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:24,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:24,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:24,720 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:24,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-06 22:14:24,724 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:14:24,724 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:24,825 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:14:24,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:24,829 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:14:24,830 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:14:24,830 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:14:24,830 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:14:24,830 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:14:24,830 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:24,830 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:14:24,830 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:14:24,830 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration2_Loop [2023-11-06 22:14:24,830 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:14:24,831 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:14:24,832 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:24,842 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:24,856 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:24,861 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:24,968 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:14:24,968 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:14:24,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:24,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:24,974 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:24,978 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:14:24,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-06 22:14:24,992 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:14:24,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:14:24,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:14:24,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:14:24,999 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:14:24,999 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:14:25,012 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:14:25,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:25,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:25,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:25,020 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:25,035 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:14:25,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-06 22:14:25,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:14:25,049 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:14:25,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:14:25,050 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-06 22:14:25,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:14:25,052 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-06 22:14:25,052 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:14:25,063 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:14:25,067 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:14:25,067 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 22:14:25,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:25,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:25,073 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:25,083 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:14:25,083 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:14:25,083 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:14:25,084 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 19 Supporting invariants [] [2023-11-06 22:14:25,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-06 22:14:25,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:25,096 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:14:25,114 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:25,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:14:25,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:25,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:14:25,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:25,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:14:25,197 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:14:25,197 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) [2023-11-06 22:14:25,234 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. [2023-11-06 22:14:25,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:14:25,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:14:25,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-06 22:14:25,237 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2023-11-06 22:14:25,237 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:25,237 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 4 letters. [2023-11-06 22:14:25,237 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:25,237 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 8 letters. [2023-11-06 22:14:25,238 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:25,238 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 43 transitions. [2023-11-06 22:14:25,240 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:14:25,241 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 21 states and 35 transitions. [2023-11-06 22:14:25,242 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2023-11-06 22:14:25,242 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-11-06 22:14:25,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 35 transitions. [2023-11-06 22:14:25,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:14:25,242 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 35 transitions. [2023-11-06 22:14:25,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 35 transitions. [2023-11-06 22:14:25,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2023-11-06 22:14:25,245 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) [2023-11-06 22:14:25,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 34 transitions. [2023-11-06 22:14:25,245 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 34 transitions. [2023-11-06 22:14:25,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:14:25,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:14:25,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:14:25,249 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) [2023-11-06 22:14:25,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:14:25,269 INFO L93 Difference]: Finished difference Result 32 states and 52 transitions. [2023-11-06 22:14:25,270 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 52 transitions. [2023-11-06 22:14:25,271 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-06 22:14:25,273 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 29 states and 46 transitions. [2023-11-06 22:14:25,273 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2023-11-06 22:14:25,273 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2023-11-06 22:14:25,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 46 transitions. [2023-11-06 22:14:25,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:14:25,274 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 46 transitions. [2023-11-06 22:14:25,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 46 transitions. [2023-11-06 22:14:25,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2023-11-06 22:14:25,277 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) [2023-11-06 22:14:25,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 45 transitions. [2023-11-06 22:14:25,278 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 45 transitions. [2023-11-06 22:14:25,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:14:25,279 INFO L428 stractBuchiCegarLoop]: Abstraction has 28 states and 45 transitions. [2023-11-06 22:14:25,280 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-06 22:14:25,280 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 45 transitions. [2023-11-06 22:14:25,281 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-06 22:14:25,281 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:14:25,281 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:14:25,282 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-06 22:14:25,282 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:14:25,282 INFO L748 eck$LassoCheckResult]: Stem: 239#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 240#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 243#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 248#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 230#L12-2 assume !(0 == main_~i~0#1); 232#L15-1 [2023-11-06 22:14:25,282 INFO L750 eck$LassoCheckResult]: Loop: 232#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 241#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 252#L12 assume !(10 == main_~i~0#1); 250#L12-2 assume !(0 == main_~i~0#1); 232#L15-1 [2023-11-06 22:14:25,283 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:25,283 INFO L85 PathProgramCache]: Analyzing trace with hash 28699760, now seen corresponding path program 1 times [2023-11-06 22:14:25,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:25,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807984246] [2023-11-06 22:14:25,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:25,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:25,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:25,289 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:25,294 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:14:25,296 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:25,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1768758, now seen corresponding path program 1 times [2023-11-06 22:14:25,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:25,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398673794] [2023-11-06 22:14:25,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:25,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:25,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:25,302 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:25,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:25,306 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:14:25,306 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:25,307 INFO L85 PathProgramCache]: Analyzing trace with hash 588716581, now seen corresponding path program 1 times [2023-11-06 22:14:25,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:25,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549821624] [2023-11-06 22:14:25,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:25,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:25,323 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:25,344 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:14:25,393 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:14:25,394 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:14:25,394 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:14:25,394 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:14:25,394 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:14:25,394 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:25,394 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:14:25,395 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:14:25,395 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration3_Loop [2023-11-06 22:14:25,395 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:14:25,395 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:14:25,397 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:25,419 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:25,424 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:25,434 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:25,521 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:14:25,521 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:14:25,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:25,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:25,523 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:25,531 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:14:25,531 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:25,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-06 22:14:25,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:25,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:25,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:25,568 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:25,573 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:14:25,573 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:25,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-06 22:14:25,692 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:14:25,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:25,697 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:14:25,697 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:14:25,697 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:14:25,697 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:14:25,697 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:14:25,697 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:25,697 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:14:25,697 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:14:25,697 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration3_Loop [2023-11-06 22:14:25,698 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:14:25,698 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:14:25,699 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:25,718 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:25,727 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:25,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:25,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:25,753 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:25,844 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:14:25,844 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:14:25,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:25,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:25,846 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:25,855 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:14:25,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-06 22:14:25,869 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:14:25,869 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:14:25,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:14:25,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:14:25,870 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:14:25,871 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:14:25,871 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:14:25,881 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:14:25,886 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:14:25,886 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 22:14:25,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:25,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:25,888 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:25,903 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:14:25,903 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:14:25,903 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:14:25,904 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-06 22:14:25,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-06 22:14:25,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:25,936 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:14:25,956 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:25,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:25,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:14:25,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:25,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:14:25,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:26,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:14:26,050 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-06 22:14:26,051 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) [2023-11-06 22:14:26,114 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. [2023-11-06 22:14:26,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:14:26,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:14:26,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-11-06 22:14:26,116 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 4 letters. [2023-11-06 22:14:26,116 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:26,117 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-06 22:14:26,117 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:26,117 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 8 letters. [2023-11-06 22:14:26,117 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:26,118 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 104 transitions. [2023-11-06 22:14:26,120 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2023-11-06 22:14:26,122 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 60 states and 98 transitions. [2023-11-06 22:14:26,122 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2023-11-06 22:14:26,123 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2023-11-06 22:14:26,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 98 transitions. [2023-11-06 22:14:26,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:14:26,123 INFO L218 hiAutomatonCegarLoop]: Abstraction has 60 states and 98 transitions. [2023-11-06 22:14:26,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 98 transitions. [2023-11-06 22:14:26,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2023-11-06 22:14:26,133 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) [2023-11-06 22:14:26,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 94 transitions. [2023-11-06 22:14:26,135 INFO L240 hiAutomatonCegarLoop]: Abstraction has 56 states and 94 transitions. [2023-11-06 22:14:26,135 INFO L428 stractBuchiCegarLoop]: Abstraction has 56 states and 94 transitions. [2023-11-06 22:14:26,135 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-06 22:14:26,135 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 94 transitions. [2023-11-06 22:14:26,137 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2023-11-06 22:14:26,137 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:14:26,137 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:14:26,137 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:14:26,138 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:14:26,138 INFO L748 eck$LassoCheckResult]: Stem: 382#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 383#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; 387#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 414#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 411#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 410#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 407#L18-1 [2023-11-06 22:14:26,138 INFO L750 eck$LassoCheckResult]: Loop: 407#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 400#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 401#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 398#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 407#L18-1 [2023-11-06 22:14:26,138 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:26,138 INFO L85 PathProgramCache]: Analyzing trace with hash 889692526, now seen corresponding path program 1 times [2023-11-06 22:14:26,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:26,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879585136] [2023-11-06 22:14:26,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:26,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:26,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:26,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:14:26,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:14:26,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879585136] [2023-11-06 22:14:26,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879585136] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:14:26,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:14:26,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:14:26,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016148241] [2023-11-06 22:14:26,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:14:26,163 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:14:26,164 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:26,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1265322, now seen corresponding path program 1 times [2023-11-06 22:14:26,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:26,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82424603] [2023-11-06 22:14:26,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:26,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:26,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:14:26,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:14:26,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82424603] [2023-11-06 22:14:26,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82424603] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:14:26,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:14:26,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:14:26,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137281355] [2023-11-06 22:14:26,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:14:26,185 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 22:14:26,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:14:26,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:14:26,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:14:26,186 INFO L87 Difference]: Start difference. First operand 56 states and 94 transitions. cyclomatic complexity: 44 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:14:26,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:14:26,202 INFO L93 Difference]: Finished difference Result 64 states and 97 transitions. [2023-11-06 22:14:26,202 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 97 transitions. [2023-11-06 22:14:26,205 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2023-11-06 22:14:26,206 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 61 states and 92 transitions. [2023-11-06 22:14:26,206 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2023-11-06 22:14:26,207 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2023-11-06 22:14:26,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 92 transitions. [2023-11-06 22:14:26,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:14:26,207 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 92 transitions. [2023-11-06 22:14:26,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 92 transitions. [2023-11-06 22:14:26,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 56. [2023-11-06 22:14:26,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.5535714285714286) internal successors, (87), 55 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:14:26,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 87 transitions. [2023-11-06 22:14:26,213 INFO L240 hiAutomatonCegarLoop]: Abstraction has 56 states and 87 transitions. [2023-11-06 22:14:26,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:14:26,214 INFO L428 stractBuchiCegarLoop]: Abstraction has 56 states and 87 transitions. [2023-11-06 22:14:26,214 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-06 22:14:26,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 87 transitions. [2023-11-06 22:14:26,216 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2023-11-06 22:14:26,216 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:14:26,216 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:14:26,216 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:14:26,217 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:14:26,217 INFO L748 eck$LassoCheckResult]: Stem: 509#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 510#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 514#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 549#L12 assume !(10 == main_~i~0#1); 548#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 536#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 534#L18-1 [2023-11-06 22:14:26,217 INFO L750 eck$LassoCheckResult]: Loop: 534#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 528#L12 assume !(10 == main_~i~0#1); 525#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 526#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 534#L18-1 [2023-11-06 22:14:26,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:26,217 INFO L85 PathProgramCache]: Analyzing trace with hash 889694448, now seen corresponding path program 1 times [2023-11-06 22:14:26,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:26,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721306086] [2023-11-06 22:14:26,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:26,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:26,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:26,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:14:26,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:14:26,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721306086] [2023-11-06 22:14:26,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721306086] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:14:26,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:14:26,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:14:26,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270344360] [2023-11-06 22:14:26,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:14:26,239 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:14:26,239 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:26,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 2 times [2023-11-06 22:14:26,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:26,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751093695] [2023-11-06 22:14:26,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:26,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:26,245 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:26,249 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:14:26,278 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:14:26,279 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:14:26,279 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:14:26,279 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:14:26,279 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:14:26,279 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:26,279 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:14:26,279 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:14:26,279 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration5_Loop [2023-11-06 22:14:26,279 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:14:26,280 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:14:26,281 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:26,284 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:26,288 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:26,294 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:26,341 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:14:26,341 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:14:26,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:26,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:26,349 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:26,359 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:14:26,359 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:26,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-06 22:14:26,382 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:14:26,382 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:14:26,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:26,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:26,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:26,388 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:26,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-06 22:14:26,402 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:14:26,402 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:26,425 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:14:26,425 INFO L440 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: [] [2023-11-06 22:14:26,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:26,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:26,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:26,436 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:26,442 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:14:26,442 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:26,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-06 22:14:26,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:26,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:26,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:26,481 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:26,486 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:14:26,486 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:26,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-06 22:14:26,514 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:14:26,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:26,518 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:14:26,518 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:14:26,518 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:14:26,518 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:14:26,518 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:14:26,518 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:26,519 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:14:26,519 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:14:26,519 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration5_Loop [2023-11-06 22:14:26,519 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:14:26,519 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:14:26,520 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:26,525 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:26,531 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:26,535 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:26,583 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:14:26,584 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:14:26,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:26,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:26,585 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:26,594 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:14:26,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:14:26,607 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:14:26,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:14:26,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:14:26,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-06 22:14:26,610 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:14:26,610 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:14:26,622 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:14:26,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:26,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:26,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:26,631 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:26,635 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:14:26,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:14:26,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:14:26,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:14:26,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:14:26,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:14:26,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-06 22:14:26,650 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:14:26,650 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:14:26,660 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:14:26,663 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:14:26,663 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 22:14:26,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:26,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:26,664 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:26,668 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:14:26,669 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:14:26,669 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:14:26,669 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2023-11-06 22:14:26,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-06 22:14:26,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:26,679 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:14:26,701 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:26,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:14:26,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:26,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:26,728 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:14:26,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:26,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:14:26,775 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:14:26,776 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 87 transitions. cyclomatic complexity: 37 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:14:26,842 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 87 transitions. cyclomatic complexity: 37. 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 122 states and 183 transitions. Complement of second has 7 states. [2023-11-06 22:14:26,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:14:26,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:14:26,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2023-11-06 22:14:26,847 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-06 22:14:26,847 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:26,847 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 10 letters. Loop has 4 letters. [2023-11-06 22:14:26,847 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:26,847 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 8 letters. [2023-11-06 22:14:26,848 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:26,848 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 122 states and 183 transitions. [2023-11-06 22:14:26,850 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 17 [2023-11-06 22:14:26,852 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 122 states to 110 states and 165 transitions. [2023-11-06 22:14:26,852 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55 [2023-11-06 22:14:26,852 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2023-11-06 22:14:26,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 110 states and 165 transitions. [2023-11-06 22:14:26,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:14:26,853 INFO L218 hiAutomatonCegarLoop]: Abstraction has 110 states and 165 transitions. [2023-11-06 22:14:26,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states and 165 transitions. [2023-11-06 22:14:26,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 96. [2023-11-06 22:14:26,867 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) [2023-11-06 22:14:26,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 148 transitions. [2023-11-06 22:14:26,868 INFO L240 hiAutomatonCegarLoop]: Abstraction has 96 states and 148 transitions. [2023-11-06 22:14:26,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:14:26,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:14:26,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:14:26,870 INFO L87 Difference]: Start difference. First operand 96 states and 148 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:14:26,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:14:26,884 INFO L93 Difference]: Finished difference Result 69 states and 95 transitions. [2023-11-06 22:14:26,885 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 95 transitions. [2023-11-06 22:14:26,886 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2023-11-06 22:14:26,887 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 62 states and 84 transitions. [2023-11-06 22:14:26,887 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2023-11-06 22:14:26,887 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2023-11-06 22:14:26,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 84 transitions. [2023-11-06 22:14:26,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:14:26,888 INFO L218 hiAutomatonCegarLoop]: Abstraction has 62 states and 84 transitions. [2023-11-06 22:14:26,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 84 transitions. [2023-11-06 22:14:26,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2023-11-06 22:14:26,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 57 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:14:26,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 80 transitions. [2023-11-06 22:14:26,893 INFO L240 hiAutomatonCegarLoop]: Abstraction has 58 states and 80 transitions. [2023-11-06 22:14:26,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:14:26,895 INFO L428 stractBuchiCegarLoop]: Abstraction has 58 states and 80 transitions. [2023-11-06 22:14:26,895 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-06 22:14:26,895 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 58 states and 80 transitions. [2023-11-06 22:14:26,896 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2023-11-06 22:14:26,896 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:14:26,896 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:14:26,896 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:14:26,897 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:14:26,897 INFO L748 eck$LassoCheckResult]: Stem: 905#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 906#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 911#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 920#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 918#L12-2 assume !(0 == main_~i~0#1); 907#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 908#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 942#L12 assume !(10 == main_~i~0#1); 896#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 897#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 937#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 934#L12 [2023-11-06 22:14:26,897 INFO L750 eck$LassoCheckResult]: Loop: 934#L12 assume !(10 == main_~i~0#1); 929#L12-2 assume !(0 == main_~i~0#1); 930#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 936#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 934#L12 [2023-11-06 22:14:26,898 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:26,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1179049836, now seen corresponding path program 1 times [2023-11-06 22:14:26,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:26,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887687151] [2023-11-06 22:14:26,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:26,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:26,945 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:14:26,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:14:26,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887687151] [2023-11-06 22:14:26,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887687151] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:14:26,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478023729] [2023-11-06 22:14:26,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:26,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:14:26,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:26,947 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:14:26,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-06 22:14:27,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:27,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:14:27,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:27,044 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:14:27,044 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:14:27,071 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:14:27,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478023729] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:14:27,072 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:14:27,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-11-06 22:14:27,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38825724] [2023-11-06 22:14:27,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:14:27,073 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:14:27,073 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:27,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1422136, now seen corresponding path program 2 times [2023-11-06 22:14:27,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:27,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83014870] [2023-11-06 22:14:27,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:27,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:27,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:27,079 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:27,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:27,083 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:14:27,135 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:14:27,136 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:14:27,136 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:14:27,136 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:14:27,136 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:14:27,136 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:27,136 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:14:27,137 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:14:27,137 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration6_Loop [2023-11-06 22:14:27,137 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:14:27,137 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:14:27,138 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:27,142 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:27,155 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:27,158 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:27,248 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:14:27,249 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:14:27,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:27,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:27,252 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:27,255 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:14:27,255 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:27,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-06 22:14:27,289 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:14:27,289 INFO L440 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: [] [2023-11-06 22:14:27,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:27,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:27,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:27,300 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:27,304 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:14:27,304 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:27,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-06 22:14:27,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:27,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:27,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:27,336 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:27,341 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:14:27,341 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:27,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-06 22:14:27,429 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:14:27,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-11-06 22:14:27,433 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:14:27,433 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:14:27,433 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:14:27,433 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:14:27,433 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:14:27,433 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:27,433 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:14:27,433 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:14:27,433 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration6_Loop [2023-11-06 22:14:27,433 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:14:27,433 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:14:27,434 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:27,445 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:27,455 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:27,459 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:27,536 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:14:27,536 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:14:27,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:27,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:27,538 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:27,542 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:14:27,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:14:27,554 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:14:27,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:14:27,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:14:27,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:14:27,555 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:14:27,555 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:14:27,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-06 22:14:27,565 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:14:27,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:27,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:27,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:27,572 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:27,577 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:14:27,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:14:27,590 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:14:27,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:14:27,590 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-06 22:14:27,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:14:27,592 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-06 22:14:27,592 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:14:27,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-06 22:14:27,613 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:14:27,616 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:14:27,616 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 22:14:27,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:27,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:27,625 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:27,626 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:14:27,626 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:14:27,627 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:14:27,627 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 19 Supporting invariants [] [2023-11-06 22:14:27,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-06 22:14:27,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:27,632 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:14:27,646 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:27,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:27,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:14:27,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:27,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:14:27,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:27,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:14:27,706 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:14:27,706 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 58 states and 80 transitions. cyclomatic complexity: 29 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) [2023-11-06 22:14:27,742 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 58 states and 80 transitions. cyclomatic complexity: 29. 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 74 states and 103 transitions. Complement of second has 7 states. [2023-11-06 22:14:27,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:14:27,747 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) [2023-11-06 22:14:27,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-06 22:14:27,747 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 11 letters. Loop has 4 letters. [2023-11-06 22:14:27,747 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:27,747 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:14:27,760 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:27,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:27,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:14:27,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:27,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:27,794 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:14:27,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:27,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:14:27,810 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:14:27,810 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 58 states and 80 transitions. cyclomatic complexity: 29 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) [2023-11-06 22:14:27,842 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 58 states and 80 transitions. cyclomatic complexity: 29. 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 74 states and 103 transitions. Complement of second has 7 states. [2023-11-06 22:14:27,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:14:27,844 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) [2023-11-06 22:14:27,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-06 22:14:27,845 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 11 letters. Loop has 4 letters. [2023-11-06 22:14:27,845 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:27,845 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:14:27,857 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:27,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:27,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:14:27,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:27,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:27,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:14:27,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:27,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:14:27,900 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:14:27,900 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 58 states and 80 transitions. cyclomatic complexity: 29 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) [2023-11-06 22:14:27,928 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 58 states and 80 transitions. cyclomatic complexity: 29. 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 101 states and 150 transitions. Complement of second has 6 states. [2023-11-06 22:14:27,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:14:27,929 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) [2023-11-06 22:14:27,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-11-06 22:14:27,929 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 11 letters. Loop has 4 letters. [2023-11-06 22:14:27,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:27,930 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 15 letters. Loop has 4 letters. [2023-11-06 22:14:27,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:27,930 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 11 letters. Loop has 8 letters. [2023-11-06 22:14:27,931 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:27,931 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 101 states and 150 transitions. [2023-11-06 22:14:27,933 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2023-11-06 22:14:27,934 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 101 states to 66 states and 91 transitions. [2023-11-06 22:14:27,934 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2023-11-06 22:14:27,934 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2023-11-06 22:14:27,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 91 transitions. [2023-11-06 22:14:27,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:14:27,935 INFO L218 hiAutomatonCegarLoop]: Abstraction has 66 states and 91 transitions. [2023-11-06 22:14:27,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 91 transitions. [2023-11-06 22:14:27,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 65. [2023-11-06 22:14:27,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 65 states have (on average 1.3846153846153846) internal successors, (90), 64 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:14:27,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2023-11-06 22:14:27,941 INFO L240 hiAutomatonCegarLoop]: Abstraction has 65 states and 90 transitions. [2023-11-06 22:14:27,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:14:27,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:14:27,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:14:27,942 INFO L87 Difference]: Start difference. First operand 65 states and 90 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) [2023-11-06 22:14:27,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:14:27,981 INFO L93 Difference]: Finished difference Result 98 states and 126 transitions. [2023-11-06 22:14:27,981 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 98 states and 126 transitions. [2023-11-06 22:14:27,983 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2023-11-06 22:14:27,984 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 98 states to 88 states and 116 transitions. [2023-11-06 22:14:27,984 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2023-11-06 22:14:27,984 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2023-11-06 22:14:27,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 88 states and 116 transitions. [2023-11-06 22:14:27,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:14:27,985 INFO L218 hiAutomatonCegarLoop]: Abstraction has 88 states and 116 transitions. [2023-11-06 22:14:27,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states and 116 transitions. [2023-11-06 22:14:27,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 73. [2023-11-06 22:14:27,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 73 states have (on average 1.3287671232876712) internal successors, (97), 72 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:14:27,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 97 transitions. [2023-11-06 22:14:27,990 INFO L240 hiAutomatonCegarLoop]: Abstraction has 73 states and 97 transitions. [2023-11-06 22:14:27,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:14:27,991 INFO L428 stractBuchiCegarLoop]: Abstraction has 73 states and 97 transitions. [2023-11-06 22:14:27,991 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-06 22:14:27,991 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 73 states and 97 transitions. [2023-11-06 22:14:27,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2023-11-06 22:14:27,992 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:14:27,992 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:14:27,993 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:14:27,993 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:14:27,993 INFO L748 eck$LassoCheckResult]: Stem: 1609#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1610#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 1613#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1619#L12 assume !(10 == main_~i~0#1); 1617#L12-2 assume !(0 == main_~i~0#1); 1618#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 1628#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1630#L12 assume !(10 == main_~i~0#1); 1653#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 1664#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 1661#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1608#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 1615#L12-2 [2023-11-06 22:14:27,993 INFO L750 eck$LassoCheckResult]: Loop: 1615#L12-2 assume !(0 == main_~i~0#1); 1616#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 1605#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1606#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 1615#L12-2 [2023-11-06 22:14:27,994 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:27,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1510748164, now seen corresponding path program 2 times [2023-11-06 22:14:27,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:27,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085832705] [2023-11-06 22:14:27,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:27,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:28,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:28,028 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:14:28,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:14:28,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085832705] [2023-11-06 22:14:28,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085832705] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:14:28,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:14:28,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:14:28,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442402312] [2023-11-06 22:14:28,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:14:28,029 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:14:28,030 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:28,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1606186, now seen corresponding path program 1 times [2023-11-06 22:14:28,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:28,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359011435] [2023-11-06 22:14:28,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:28,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:28,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:28,034 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:28,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:28,037 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:14:28,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:28,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:28,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:28,093 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:14:28,093 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:14:28,093 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:14:28,093 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:14:28,094 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:14:28,094 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:28,094 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:14:28,094 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:14:28,094 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration7_Loop [2023-11-06 22:14:28,094 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:14:28,094 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:14:28,095 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:28,098 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:28,101 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:28,107 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:28,175 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:14:28,176 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:14:28,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:28,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:28,177 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:28,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-06 22:14:28,181 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:14:28,181 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:28,205 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:14:28,205 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:14:28,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:28,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:28,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:28,215 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:28,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-06 22:14:28,219 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:14:28,219 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:28,239 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:14:28,239 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:14:28,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2023-11-06 22:14:28,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:28,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:28,242 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:28,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-06 22:14:28,246 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:14:28,246 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:28,293 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:14:28,293 INFO L440 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: [] [2023-11-06 22:14:28,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:28,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:28,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:28,298 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:28,306 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:14:28,306 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:28,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-06 22:14:28,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:28,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:28,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:28,342 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:28,346 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:14:28,346 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:28,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-06 22:14:28,385 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:14:28,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:28,393 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:14:28,393 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:14:28,393 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:14:28,393 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:14:28,394 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:14:28,394 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:28,394 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:14:28,394 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:14:28,394 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration7_Loop [2023-11-06 22:14:28,394 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:14:28,394 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:14:28,395 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:28,400 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:28,403 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:28,408 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:28,468 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:14:28,468 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:14:28,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:28,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:28,469 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:28,475 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:14:28,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:14:28,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:14:28,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:14:28,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:14:28,489 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:14:28,489 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:14:28,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-06 22:14:28,505 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:14:28,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:28,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:28,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:28,514 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:28,518 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:14:28,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:14:28,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:14:28,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:14:28,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:14:28,532 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:14:28,533 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:14:28,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-06 22:14:28,549 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:14:28,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:28,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:28,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:28,559 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:28,562 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:14:28,574 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:14:28,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:14:28,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:14:28,575 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-06 22:14:28,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:14:28,576 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-06 22:14:28,577 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:14:28,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-11-06 22:14:28,593 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:14:28,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:28,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:28,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:28,600 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:28,603 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:14:28,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:14:28,615 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:14:28,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:14:28,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:14:28,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:14:28,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-06 22:14:28,617 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:14:28,617 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:14:28,637 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:14:28,640 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:14:28,641 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 22:14:28,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:28,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:28,642 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:28,648 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:14:28,649 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:14:28,649 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:14:28,649 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-06 22:14:28,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-06 22:14:28,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:28,653 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:14:28,667 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:28,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:14:28,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:28,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:14:28,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:28,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:14:28,720 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:14:28,720 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 73 states and 97 transitions. cyclomatic complexity: 30 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) [2023-11-06 22:14:28,749 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 73 states and 97 transitions. cyclomatic complexity: 30. 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 154 states and 214 transitions. Complement of second has 7 states. [2023-11-06 22:14:28,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:14:28,751 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) [2023-11-06 22:14:28,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-11-06 22:14:28,751 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 4 letters. [2023-11-06 22:14:28,753 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:28,753 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2023-11-06 22:14:28,754 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:28,754 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 8 letters. [2023-11-06 22:14:28,754 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:28,754 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 154 states and 214 transitions. [2023-11-06 22:14:28,759 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2023-11-06 22:14:28,760 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 154 states to 120 states and 159 transitions. [2023-11-06 22:14:28,761 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2023-11-06 22:14:28,762 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2023-11-06 22:14:28,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 159 transitions. [2023-11-06 22:14:28,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:14:28,762 INFO L218 hiAutomatonCegarLoop]: Abstraction has 120 states and 159 transitions. [2023-11-06 22:14:28,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 159 transitions. [2023-11-06 22:14:28,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 93. [2023-11-06 22:14:28,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 93 states have (on average 1.3333333333333333) internal successors, (124), 92 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:14:28,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 124 transitions. [2023-11-06 22:14:28,770 INFO L240 hiAutomatonCegarLoop]: Abstraction has 93 states and 124 transitions. [2023-11-06 22:14:28,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:14:28,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:14:28,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:14:28,771 INFO L87 Difference]: Start difference. First operand 93 states and 124 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) [2023-11-06 22:14:28,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:14:28,794 INFO L93 Difference]: Finished difference Result 112 states and 146 transitions. [2023-11-06 22:14:28,794 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 112 states and 146 transitions. [2023-11-06 22:14:28,795 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 26 [2023-11-06 22:14:28,796 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 112 states to 112 states and 146 transitions. [2023-11-06 22:14:28,797 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2023-11-06 22:14:28,797 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2023-11-06 22:14:28,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 112 states and 146 transitions. [2023-11-06 22:14:28,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:14:28,797 INFO L218 hiAutomatonCegarLoop]: Abstraction has 112 states and 146 transitions. [2023-11-06 22:14:28,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states and 146 transitions. [2023-11-06 22:14:28,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 100. [2023-11-06 22:14:28,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 100 states have (on average 1.3) internal successors, (130), 99 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:14:28,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 130 transitions. [2023-11-06 22:14:28,802 INFO L240 hiAutomatonCegarLoop]: Abstraction has 100 states and 130 transitions. [2023-11-06 22:14:28,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:14:28,803 INFO L428 stractBuchiCegarLoop]: Abstraction has 100 states and 130 transitions. [2023-11-06 22:14:28,803 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-06 22:14:28,803 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 100 states and 130 transitions. [2023-11-06 22:14:28,804 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 24 [2023-11-06 22:14:28,804 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:14:28,804 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:14:28,805 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 5, 5, 4, 2, 2, 1, 1, 1] [2023-11-06 22:14:28,805 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:14:28,806 INFO L748 eck$LassoCheckResult]: Stem: 2112#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2113#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 2118#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2124#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 2125#L12-2 assume !(0 == main_~i~0#1); 2198#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2197#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2196#L12 assume !(10 == main_~i~0#1); 2194#L12-2 assume !(0 == main_~i~0#1); 2192#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2190#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2188#L12 assume !(10 == main_~i~0#1); 2186#L12-2 assume !(0 == main_~i~0#1); 2184#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2182#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2181#L12 assume !(10 == main_~i~0#1); 2171#L12-2 assume !(0 == main_~i~0#1); 2178#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2177#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2170#L12 assume !(10 == main_~i~0#1); 2169#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 2163#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 2167#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2166#L12 assume !(10 == main_~i~0#1); 2155#L12-2 assume !(0 == main_~i~0#1); 2157#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 2156#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2154#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 2127#L12-2 [2023-11-06 22:14:28,806 INFO L750 eck$LassoCheckResult]: Loop: 2127#L12-2 assume !(0 == main_~i~0#1); 2122#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2108#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2109#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 2127#L12-2 [2023-11-06 22:14:28,806 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:28,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1054469156, now seen corresponding path program 3 times [2023-11-06 22:14:28,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:28,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494824520] [2023-11-06 22:14:28,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:28,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:28,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:28,903 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 41 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:14:28,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:14:28,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494824520] [2023-11-06 22:14:28,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494824520] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:14:28,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828842909] [2023-11-06 22:14:28,904 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:14:28,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:14:28,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:28,906 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:14:28,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-06 22:14:28,941 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-06 22:14:28,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:14:28,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:14:28,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:28,977 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-06 22:14:28,977 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:14:29,022 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-06 22:14:29,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828842909] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:14:29,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:14:29,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 13 [2023-11-06 22:14:29,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379816016] [2023-11-06 22:14:29,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:14:29,023 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:14:29,023 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:29,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1606186, now seen corresponding path program 2 times [2023-11-06 22:14:29,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:29,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107453354] [2023-11-06 22:14:29,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:29,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:29,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:29,027 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:29,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:29,030 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:14:29,061 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:14:29,061 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:14:29,062 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:14:29,062 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:14:29,062 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:14:29,062 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:29,062 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:14:29,062 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:14:29,062 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration8_Loop [2023-11-06 22:14:29,062 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:14:29,062 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:14:29,063 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:29,068 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:29,073 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:29,076 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:29,136 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:14:29,136 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:14:29,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:29,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:29,137 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:29,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-06 22:14:29,143 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:14:29,143 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:29,181 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:14:29,181 INFO L440 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: [] [2023-11-06 22:14:29,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:29,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:29,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:29,186 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:29,195 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:14:29,195 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:29,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-06 22:14:29,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:29,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:29,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:29,237 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:29,242 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:14:29,242 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:29,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-06 22:14:29,266 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:14:29,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:29,269 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:14:29,270 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:14:29,270 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:14:29,270 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:14:29,270 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:14:29,270 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:29,270 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:14:29,270 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:14:29,270 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration8_Loop [2023-11-06 22:14:29,270 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:14:29,270 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:14:29,271 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:29,277 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:29,282 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:29,285 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:29,343 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:14:29,343 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:14:29,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:29,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:29,344 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:29,348 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:14:29,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-11-06 22:14:29,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:14:29,360 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:14:29,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:14:29,360 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-06 22:14:29,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:14:29,361 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-06 22:14:29,361 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:14:29,369 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:14:29,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:29,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:29,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:29,372 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:29,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-11-06 22:14:29,375 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:14:29,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:14:29,385 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:14:29,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:14:29,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:14:29,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:14:29,386 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:14:29,386 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:14:29,389 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:14:29,393 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:14:29,393 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 22:14:29,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:29,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:29,397 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:29,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-11-06 22:14:29,400 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:14:29,401 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:14:29,401 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:14:29,401 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-06 22:14:29,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:29,405 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:14:29,418 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:29,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:29,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:14:29,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:29,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:29,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:14:29,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:29,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:14:29,497 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:14:29,497 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 100 states and 130 transitions. cyclomatic complexity: 38 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) [2023-11-06 22:14:29,528 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 100 states and 130 transitions. cyclomatic complexity: 38. 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 131 states and 172 transitions. Complement of second has 7 states. [2023-11-06 22:14:29,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:14:29,529 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) [2023-11-06 22:14:29,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-11-06 22:14:29,529 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 28 letters. Loop has 4 letters. [2023-11-06 22:14:29,530 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:29,530 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:14:29,541 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:29,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:29,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:14:29,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:29,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:14:29,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:29,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:14:29,624 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:14:29,625 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 100 states and 130 transitions. cyclomatic complexity: 38 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) [2023-11-06 22:14:29,662 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 100 states and 130 transitions. cyclomatic complexity: 38. 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 145 states and 180 transitions. Complement of second has 7 states. [2023-11-06 22:14:29,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:14:29,663 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) [2023-11-06 22:14:29,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2023-11-06 22:14:29,663 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 28 letters. Loop has 4 letters. [2023-11-06 22:14:29,666 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:29,666 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:14:29,679 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:29,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:29,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:14:29,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:29,749 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:14:29,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:29,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:14:29,765 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:14:29,765 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 100 states and 130 transitions. cyclomatic complexity: 38 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) [2023-11-06 22:14:29,797 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 100 states and 130 transitions. cyclomatic complexity: 38. 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 144 states and 191 transitions. Complement of second has 8 states. [2023-11-06 22:14:29,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:14:29,798 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) [2023-11-06 22:14:29,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2023-11-06 22:14:29,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 28 letters. Loop has 4 letters. [2023-11-06 22:14:29,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:29,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 32 letters. Loop has 4 letters. [2023-11-06 22:14:29,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:29,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 28 letters. Loop has 8 letters. [2023-11-06 22:14:29,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:29,800 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 144 states and 191 transitions. [2023-11-06 22:14:29,802 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 26 [2023-11-06 22:14:29,803 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 144 states to 103 states and 133 transitions. [2023-11-06 22:14:29,803 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-06 22:14:29,803 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-06 22:14:29,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 103 states and 133 transitions. [2023-11-06 22:14:29,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:14:29,804 INFO L218 hiAutomatonCegarLoop]: Abstraction has 103 states and 133 transitions. [2023-11-06 22:14:29,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states and 133 transitions. [2023-11-06 22:14:29,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 71. [2023-11-06 22:14:29,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 71 states have (on average 1.2816901408450705) internal successors, (91), 70 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:14:29,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 91 transitions. [2023-11-06 22:14:29,808 INFO L240 hiAutomatonCegarLoop]: Abstraction has 71 states and 91 transitions. [2023-11-06 22:14:29,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:14:29,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-06 22:14:29,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:14:29,809 INFO L87 Difference]: Start difference. First operand 71 states and 91 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) [2023-11-06 22:14:29,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:14:29,910 INFO L93 Difference]: Finished difference Result 160 states and 198 transitions. [2023-11-06 22:14:29,910 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 198 transitions. [2023-11-06 22:14:29,912 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2023-11-06 22:14:29,913 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 158 states and 196 transitions. [2023-11-06 22:14:29,914 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2023-11-06 22:14:29,914 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-06 22:14:29,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 158 states and 196 transitions. [2023-11-06 22:14:29,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:14:29,914 INFO L218 hiAutomatonCegarLoop]: Abstraction has 158 states and 196 transitions. [2023-11-06 22:14:29,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states and 196 transitions. [2023-11-06 22:14:29,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 111. [2023-11-06 22:14:29,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 111 states have (on average 1.2342342342342343) internal successors, (137), 110 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:14:29,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 137 transitions. [2023-11-06 22:14:29,918 INFO L240 hiAutomatonCegarLoop]: Abstraction has 111 states and 137 transitions. [2023-11-06 22:14:29,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 22:14:29,919 INFO L428 stractBuchiCegarLoop]: Abstraction has 111 states and 137 transitions. [2023-11-06 22:14:29,920 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-06 22:14:29,920 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states and 137 transitions. [2023-11-06 22:14:29,921 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 45 [2023-11-06 22:14:29,921 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:14:29,921 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:14:29,922 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-06 22:14:29,922 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [11, 10, 10, 6, 5, 1, 1] [2023-11-06 22:14:29,922 INFO L748 eck$LassoCheckResult]: Stem: 3362#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3363#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 3357#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3358#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 3354#L12-2 [2023-11-06 22:14:29,922 INFO L750 eck$LassoCheckResult]: Loop: 3354#L12-2 assume !(0 == main_~i~0#1); 3355#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3461#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3460#L12 assume !(10 == main_~i~0#1); 3459#L12-2 assume !(0 == main_~i~0#1); 3458#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3457#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3456#L12 assume !(10 == main_~i~0#1); 3455#L12-2 assume !(0 == main_~i~0#1); 3454#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3453#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3452#L12 assume !(10 == main_~i~0#1); 3451#L12-2 assume !(0 == main_~i~0#1); 3450#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3449#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3448#L12 assume !(10 == main_~i~0#1); 3442#L12-2 assume !(0 == main_~i~0#1); 3446#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3443#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3441#L12 assume !(10 == main_~i~0#1); 3440#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 3432#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3433#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3428#L12 assume !(10 == main_~i~0#1); 3429#L12-2 assume !(0 == main_~i~0#1); 3424#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3425#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3439#L12 assume !(10 == main_~i~0#1); 3436#L12-2 assume !(0 == main_~i~0#1); 3419#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3418#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3416#L12 assume !(10 == main_~i~0#1); 3417#L12-2 assume !(0 == main_~i~0#1); 3413#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3412#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3410#L12 assume !(10 == main_~i~0#1); 3411#L12-2 assume !(0 == main_~i~0#1); 3406#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3407#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3403#L12 assume !(10 == main_~i~0#1); 3379#L12-2 assume !(0 == main_~i~0#1); 3435#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3447#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3378#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 3354#L12-2 [2023-11-06 22:14:29,923 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:29,923 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2023-11-06 22:14:29,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:29,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252990148] [2023-11-06 22:14:29,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:29,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:29,927 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:29,929 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:14:29,930 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:29,930 INFO L85 PathProgramCache]: Analyzing trace with hash 752067982, now seen corresponding path program 1 times [2023-11-06 22:14:29,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:29,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976043683] [2023-11-06 22:14:29,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:29,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:30,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:30,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:30,124 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 120 proven. 55 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-06 22:14:30,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:14:30,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976043683] [2023-11-06 22:14:30,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976043683] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:14:30,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98025591] [2023-11-06 22:14:30,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:30,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:14:30,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:30,127 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:14:30,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-06 22:14:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:30,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:14:30,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:30,226 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 120 proven. 55 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-06 22:14:30,226 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:14:30,332 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 120 proven. 55 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-06 22:14:30,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98025591] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:14:30,333 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:14:30,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 11 [2023-11-06 22:14:30,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763096042] [2023-11-06 22:14:30,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:14:30,335 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 22:14:30,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:14:30,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:14:30,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:14:30,337 INFO L87 Difference]: Start difference. First operand 111 states and 137 transitions. cyclomatic complexity: 31 Second operand has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:14:30,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:14:30,407 INFO L93 Difference]: Finished difference Result 217 states and 266 transitions. [2023-11-06 22:14:30,408 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 217 states and 266 transitions. [2023-11-06 22:14:30,409 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 63 [2023-11-06 22:14:30,411 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 217 states to 217 states and 266 transitions. [2023-11-06 22:14:30,411 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2023-11-06 22:14:30,412 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-06 22:14:30,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 217 states and 266 transitions. [2023-11-06 22:14:30,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:14:30,412 INFO L218 hiAutomatonCegarLoop]: Abstraction has 217 states and 266 transitions. [2023-11-06 22:14:30,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states and 266 transitions. [2023-11-06 22:14:30,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 143. [2023-11-06 22:14:30,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 143 states have (on average 1.2097902097902098) internal successors, (173), 142 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:14:30,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 173 transitions. [2023-11-06 22:14:30,418 INFO L240 hiAutomatonCegarLoop]: Abstraction has 143 states and 173 transitions. [2023-11-06 22:14:30,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:14:30,419 INFO L428 stractBuchiCegarLoop]: Abstraction has 143 states and 173 transitions. [2023-11-06 22:14:30,419 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2023-11-06 22:14:30,419 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 143 states and 173 transitions. [2023-11-06 22:14:30,420 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 61 [2023-11-06 22:14:30,420 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:14:30,420 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:14:30,422 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-06 22:14:30,422 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [15, 14, 14, 10, 5, 1, 1] [2023-11-06 22:14:30,423 INFO L748 eck$LassoCheckResult]: Stem: 3963#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3964#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 3958#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3959#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 3955#L12-2 [2023-11-06 22:14:30,424 INFO L750 eck$LassoCheckResult]: Loop: 3955#L12-2 assume !(0 == main_~i~0#1); 3956#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4094#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4093#L12 assume !(10 == main_~i~0#1); 4092#L12-2 assume !(0 == main_~i~0#1); 4091#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4090#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4089#L12 assume !(10 == main_~i~0#1); 4088#L12-2 assume !(0 == main_~i~0#1); 4087#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4086#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4085#L12 assume !(10 == main_~i~0#1); 4084#L12-2 assume !(0 == main_~i~0#1); 4083#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4082#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4081#L12 assume !(10 == main_~i~0#1); 4077#L12-2 assume !(0 == main_~i~0#1); 4080#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4078#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4076#L12 assume !(10 == main_~i~0#1); 4057#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 4054#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4053#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4051#L12 assume !(10 == main_~i~0#1); 4052#L12-2 assume !(0 == main_~i~0#1); 4048#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4046#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4047#L12 assume !(10 == main_~i~0#1); 4061#L12-2 assume !(0 == main_~i~0#1); 4042#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4041#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4039#L12 assume !(10 == main_~i~0#1); 4040#L12-2 assume !(0 == main_~i~0#1); 4058#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4065#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4033#L12 assume !(10 == main_~i~0#1); 4034#L12-2 assume !(0 == main_~i~0#1); 4055#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4073#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4071#L12 assume !(10 == main_~i~0#1); 4059#L12-2 assume !(0 == main_~i~0#1); 4026#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4025#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4023#L12 assume !(10 == main_~i~0#1); 4024#L12-2 assume !(0 == main_~i~0#1); 4020#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4019#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4017#L12 assume !(10 == main_~i~0#1); 4018#L12-2 assume !(0 == main_~i~0#1); 4060#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4075#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4011#L12 assume !(10 == main_~i~0#1); 4012#L12-2 assume !(0 == main_~i~0#1); 4056#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4079#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4006#L12 assume !(10 == main_~i~0#1); 3980#L12-2 assume !(0 == main_~i~0#1); 4002#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4003#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3979#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 3955#L12-2 [2023-11-06 22:14:30,424 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:30,424 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 2 times [2023-11-06 22:14:30,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:30,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048459889] [2023-11-06 22:14:30,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:30,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:30,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:30,429 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:30,431 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:14:30,434 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:30,434 INFO L85 PathProgramCache]: Analyzing trace with hash 240822066, now seen corresponding path program 2 times [2023-11-06 22:14:30,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:30,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173624533] [2023-11-06 22:14:30,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:30,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:30,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:30,457 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:30,481 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:14:30,482 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:30,482 INFO L85 PathProgramCache]: Analyzing trace with hash 434182679, now seen corresponding path program 4 times [2023-11-06 22:14:30,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:30,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537749627] [2023-11-06 22:14:30,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:30,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:30,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:30,647 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 234 proven. 45 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-11-06 22:14:30,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:14:30,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537749627] [2023-11-06 22:14:30,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537749627] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:14:30,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202975587] [2023-11-06 22:14:30,648 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 22:14:30,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:14:30,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:30,649 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:14:30,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-06 22:14:30,702 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 22:14:30,702 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:14:30,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:14:30,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:30,760 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 234 proven. 45 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-11-06 22:14:30,760 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:14:30,858 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 234 proven. 45 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-11-06 22:14:30,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1202975587] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:14:30,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:14:30,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2023-11-06 22:14:30,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143333341] [2023-11-06 22:14:30,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:14:31,306 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:14:31,307 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:14:31,307 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:14:31,307 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:14:31,307 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:14:31,307 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:31,307 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:14:31,307 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:14:31,308 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration10_Loop [2023-11-06 22:14:31,308 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:14:31,308 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:14:31,309 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:31,311 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:31,319 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:31,322 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:31,389 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:14:31,390 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:14:31,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:31,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:31,391 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:31,408 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:14:31,408 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:31,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2023-11-06 22:14:31,436 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:14:31,436 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:14:31,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:31,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:31,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:31,441 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:31,449 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:14:31,449 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:31,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2023-11-06 22:14:31,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:31,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:31,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:31,490 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:31,498 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:14:31,498 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:14:31,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2023-11-06 22:14:31,521 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:14:31,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:31,524 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:14:31,524 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:14:31,524 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:14:31,524 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:14:31,524 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:14:31,524 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:31,525 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:14:31,525 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:14:31,525 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration10_Loop [2023-11-06 22:14:31,525 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:14:31,525 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:14:31,526 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:31,529 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:31,540 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:31,545 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:14:31,627 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:14:31,628 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:14:31,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:31,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:31,629 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:31,637 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:14:31,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:14:31,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:14:31,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:14:31,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:14:31,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2023-11-06 22:14:31,656 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:14:31,657 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:14:31,667 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:14:31,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:31,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:31,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:31,673 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:31,677 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:14:31,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2023-11-06 22:14:31,689 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:14:31,689 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:14:31,689 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:14:31,689 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:14:31,689 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:14:31,690 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:14:31,690 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:14:31,705 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:14:31,717 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:14:31,717 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 22:14:31,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:14:31,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:31,721 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:31,723 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:14:31,723 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:14:31,723 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:14:31,723 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 15 Supporting invariants [] [2023-11-06 22:14:31,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2023-11-06 22:14:31,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:31,727 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:14:31,741 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:31,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:31,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:14:31,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:14:31,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 22:14:31,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:14:31,938 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 249 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-11-06 22:14:31,939 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 7 loop predicates [2023-11-06 22:14:31,939 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 143 states and 173 transitions. cyclomatic complexity: 35 Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:14:32,278 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 143 states and 173 transitions. cyclomatic complexity: 35. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 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 690 states and 839 transitions. Complement of second has 27 states. [2023-11-06 22:14:32,279 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 [2023-11-06 22:14:32,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:14:32,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 69 transitions. [2023-11-06 22:14:32,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 69 transitions. Stem has 4 letters. Loop has 60 letters. [2023-11-06 22:14:32,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:32,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 69 transitions. Stem has 64 letters. Loop has 60 letters. [2023-11-06 22:14:32,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:32,282 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 69 transitions. Stem has 4 letters. Loop has 120 letters. [2023-11-06 22:14:32,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:14:32,284 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 690 states and 839 transitions. [2023-11-06 22:14:32,290 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 61 [2023-11-06 22:14:32,295 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 690 states to 522 states and 629 transitions. [2023-11-06 22:14:32,295 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2023-11-06 22:14:32,296 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2023-11-06 22:14:32,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 522 states and 629 transitions. [2023-11-06 22:14:32,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:14:32,296 INFO L218 hiAutomatonCegarLoop]: Abstraction has 522 states and 629 transitions. [2023-11-06 22:14:32,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states and 629 transitions. [2023-11-06 22:14:32,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 384. [2023-11-06 22:14:32,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 384 states have (on average 1.2057291666666667) internal successors, (463), 383 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:14:32,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 463 transitions. [2023-11-06 22:14:32,308 INFO L240 hiAutomatonCegarLoop]: Abstraction has 384 states and 463 transitions. [2023-11-06 22:14:32,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:14:32,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:14:32,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:14:32,309 INFO L87 Difference]: Start difference. First operand 384 states and 463 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) [2023-11-06 22:14:32,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:14:32,392 INFO L93 Difference]: Finished difference Result 322 states and 385 transitions. [2023-11-06 22:14:32,392 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 322 states and 385 transitions. [2023-11-06 22:14:32,395 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 83 [2023-11-06 22:14:32,397 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 322 states to 272 states and 335 transitions. [2023-11-06 22:14:32,397 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-06 22:14:32,397 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-06 22:14:32,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 272 states and 335 transitions. [2023-11-06 22:14:32,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:14:32,398 INFO L218 hiAutomatonCegarLoop]: Abstraction has 272 states and 335 transitions. [2023-11-06 22:14:32,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states and 335 transitions. [2023-11-06 22:14:32,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 183. [2023-11-06 22:14:32,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 183 states have (on average 1.2185792349726776) internal successors, (223), 182 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:14:32,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 223 transitions. [2023-11-06 22:14:32,403 INFO L240 hiAutomatonCegarLoop]: Abstraction has 183 states and 223 transitions. [2023-11-06 22:14:32,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:14:32,404 INFO L428 stractBuchiCegarLoop]: Abstraction has 183 states and 223 transitions. [2023-11-06 22:14:32,404 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2023-11-06 22:14:32,404 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 223 transitions. [2023-11-06 22:14:32,405 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2023-11-06 22:14:32,406 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:14:32,411 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:14:32,414 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-06 22:14:32,414 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [20, 19, 19, 10, 10, 1, 1] [2023-11-06 22:14:32,415 INFO L748 eck$LassoCheckResult]: Stem: 6146#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 6147#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; 6141#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 6142#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 6138#L12-2 [2023-11-06 22:14:32,417 INFO L750 eck$LassoCheckResult]: Loop: 6138#L12-2 assume !(0 == main_~i~0#1); 6139#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 6144#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 6145#L12 assume !(10 == main_~i~0#1); 6152#L12-2 assume !(0 == main_~i~0#1); 6320#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 6319#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 6318#L12 assume !(10 == main_~i~0#1); 6317#L12-2 assume !(0 == main_~i~0#1); 6316#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 6315#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 6314#L12 assume !(10 == main_~i~0#1); 6313#L12-2 assume !(0 == main_~i~0#1); 6312#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 6311#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 6310#L12 assume !(10 == main_~i~0#1); 6306#L12-2 assume !(0 == main_~i~0#1); 6305#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 6304#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 6303#L12 assume !(10 == main_~i~0#1); 6302#L12-2 assume !(0 == main_~i~0#1); 6301#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 6300#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 6299#L12 assume !(10 == main_~i~0#1); 6298#L12-2 assume !(0 == main_~i~0#1); 6297#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 6296#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 6295#L12 assume !(10 == main_~i~0#1); 6294#L12-2 assume !(0 == main_~i~0#1); 6293#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 6292#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 6291#L12 assume !(10 == main_~i~0#1); 6290#L12-2 assume !(0 == main_~i~0#1); 6289#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 6288#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 6287#L12 assume !(10 == main_~i~0#1); 6284#L12-2 assume !(0 == main_~i~0#1); 6286#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 6285#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 6283#L12 assume !(10 == main_~i~0#1); 6260#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 6259#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 6258#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 6256#L12 assume !(10 == main_~i~0#1); 6257#L12-2 assume !(0 == main_~i~0#1); 6253#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 6252#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 6250#L12 assume !(10 == main_~i~0#1); 6251#L12-2 assume !(0 == main_~i~0#1); 6247#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 6246#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 6244#L12 assume !(10 == main_~i~0#1); 6245#L12-2 assume !(0 == main_~i~0#1); 6241#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 6240#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 6238#L12 assume !(10 == main_~i~0#1); 6239#L12-2 assume !(0 == main_~i~0#1); 6235#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 6234#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 6232#L12 assume !(10 == main_~i~0#1); 6233#L12-2 assume !(0 == main_~i~0#1); 6229#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 6228#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 6226#L12 assume !(10 == main_~i~0#1); 6227#L12-2 assume !(0 == main_~i~0#1); 6223#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 6222#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 6220#L12 assume !(10 == main_~i~0#1); 6221#L12-2 assume !(0 == main_~i~0#1); 6217#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 6216#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 6214#L12 assume !(10 == main_~i~0#1); 6215#L12-2 assume !(0 == main_~i~0#1); 6211#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 6210#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 6209#L12 assume !(10 == main_~i~0#1); 6168#L12-2 assume !(0 == main_~i~0#1); 6172#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 6171#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 6167#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 6138#L12-2 [2023-11-06 22:14:32,417 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:32,417 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 3 times [2023-11-06 22:14:32,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:32,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912759860] [2023-11-06 22:14:32,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:32,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:32,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:32,422 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:32,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:32,425 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:14:32,428 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:32,428 INFO L85 PathProgramCache]: Analyzing trace with hash 385709705, now seen corresponding path program 3 times [2023-11-06 22:14:32,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:32,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968807482] [2023-11-06 22:14:32,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:32,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:32,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:32,445 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:32,464 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:14:32,468 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:14:32,468 INFO L85 PathProgramCache]: Analyzing trace with hash -2052422418, now seen corresponding path program 5 times [2023-11-06 22:14:32,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:14:32,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407640137] [2023-11-06 22:14:32,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:14:32,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:14:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:32,490 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:32,515 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:14:33,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:33,194 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:14:33,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:14:33,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 10:14:33 BoogieIcfgContainer [2023-11-06 22:14:33,229 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 22:14:33,229 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:14:33,229 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:14:33,229 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:14:33,230 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:14:22" (3/4) ... [2023-11-06 22:14:33,231 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-06 22:14:33,276 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:14:33,276 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:14:33,277 INFO L158 Benchmark]: Toolchain (without parser) took 10888.65ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 118.3MB in the beginning and 130.1MB in the end (delta: -11.7MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2023-11-06 22:14:33,277 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 68.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:14:33,277 INFO L158 Benchmark]: CACSL2BoogieTranslator took 220.18ms. Allocated memory is still 163.6MB. Free memory was 117.7MB in the beginning and 108.6MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:14:33,278 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.97ms. Allocated memory is still 163.6MB. Free memory was 108.6MB in the beginning and 107.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:14:33,278 INFO L158 Benchmark]: Boogie Preprocessor took 20.37ms. Allocated memory is still 163.6MB. Free memory was 107.3MB in the beginning and 106.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:14:33,278 INFO L158 Benchmark]: RCFGBuilder took 308.62ms. Allocated memory is still 163.6MB. Free memory was 106.0MB in the beginning and 97.4MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:14:33,279 INFO L158 Benchmark]: BuchiAutomizer took 10253.76ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 96.8MB in the beginning and 133.2MB in the end (delta: -36.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:14:33,279 INFO L158 Benchmark]: Witness Printer took 46.96ms. Allocated memory is still 197.1MB. Free memory was 133.2MB in the beginning and 130.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:14:33,281 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 68.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 220.18ms. Allocated memory is still 163.6MB. Free memory was 117.7MB in the beginning and 108.6MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.97ms. Allocated memory is still 163.6MB. Free memory was 108.6MB in the beginning and 107.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.37ms. Allocated memory is still 163.6MB. Free memory was 107.3MB in the beginning and 106.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 308.62ms. Allocated memory is still 163.6MB. Free memory was 106.0MB in the beginning and 97.4MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 10253.76ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 96.8MB in the beginning and 133.2MB in the end (delta: -36.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 46.96ms. Allocated memory is still 197.1MB. Free memory was 133.2MB in the beginning and 130.1MB 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 16 terminating modules (8 trivial, 6 deterministic, 2 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function ((-2 * i) + 1) and consists of 5 locations. One deterministic module has affine ranking function ((-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 ((-2 * i) + 1) 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 ((-2 * i) + 15) and consists of 14 locations. One nondeterministic module has affine ranking function ((-2 * i) + 19) and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 4 locations. 8 modules have a trivial ranking function, the largest among these consists of 13 locations. The remainder module has 183 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.1s and 11 iterations. TraceHistogramMax:20. Analysis of lassos took 7.3s. Construction of modules took 0.5s. Büchi inclusion checks took 2.0s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 16. Automata minimization 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 465 StatesRemovedByMinimization, 16 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 [6, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 171/420 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 268 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 256 mSDsluCounter, 186 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 646 IncrementalHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 158 mSDtfsCounter, 646 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT2 conc0 concLT2 SILN0 SILU0 SILI1 SILT4 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax175 hnf100 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq176 hnf93 smp90 dnf129 smp93 tf109 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 61ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 12 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 8 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=10, up=0] [L12] COND TRUE i == 10 [L13] up = 0 VAL [i=10, up=0] Loop: [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) [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 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=10, up=0] [L12] COND TRUE i == 10 [L13] up = 0 VAL [i=10, up=0] Loop: [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) [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 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-06 22:14:33,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:33,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2023-11-06 22:14:33,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-06 22:14:33,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-06 22:14:34,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_498ec770-8c85-4912-b6ae-2db38b6a15fb/bin/uautomizer-verify-WvqO1wxjHP/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)