./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Ex08.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Ex08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e9f5cf3ddf7f2bce97ea02caa876a19793443837e6b09c62b997f759c9b40cc6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:41:38,619 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:41:38,790 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-19 07:41:38,800 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:41:38,802 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:41:38,847 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:41:38,849 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:41:38,850 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:41:38,851 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:41:38,857 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:41:38,859 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:41:38,859 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:41:38,860 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:41:38,861 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:41:38,862 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:41:38,862 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:41:38,863 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:41:38,864 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:41:38,864 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:41:38,865 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:41:38,865 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:41:38,866 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:41:38,866 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:41:38,867 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:41:38,867 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:41:38,868 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:41:38,868 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:41:38,868 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:41:38,869 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:41:38,869 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:41:38,871 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:41:38,871 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:41:38,872 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:41:38,872 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_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9f5cf3ddf7f2bce97ea02caa876a19793443837e6b09c62b997f759c9b40cc6 [2023-11-19 07:41:39,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:41:39,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:41:39,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:41:39,259 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:41:39,260 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:41:39,262 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/termination-restricted-15/Ex08.c [2023-11-19 07:41:42,544 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:41:42,875 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:41:42,875 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/sv-benchmarks/c/termination-restricted-15/Ex08.c [2023-11-19 07:41:42,884 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/data/f6925ccb2/69e9e3993d404b558cd103a374b2c3d3/FLAGd2497db5c [2023-11-19 07:41:42,902 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/data/f6925ccb2/69e9e3993d404b558cd103a374b2c3d3 [2023-11-19 07:41:42,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:41:42,909 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:41:42,913 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:41:42,913 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:41:42,919 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:41:42,920 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:42" (1/1) ... [2023-11-19 07:41:42,922 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77c92c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:42, skipping insertion in model container [2023-11-19 07:41:42,922 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:42" (1/1) ... [2023-11-19 07:41:42,944 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:41:43,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:41:43,102 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:41:43,115 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:41:43,130 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:41:43,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:43 WrapperNode [2023-11-19 07:41:43,130 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:41:43,132 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:41:43,132 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:41:43,132 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:41:43,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:43" (1/1) ... [2023-11-19 07:41:43,144 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:43" (1/1) ... [2023-11-19 07:41:43,160 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2023-11-19 07:41:43,161 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:41:43,161 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:41:43,161 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:41:43,162 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:41:43,170 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:43" (1/1) ... [2023-11-19 07:41:43,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:43" (1/1) ... [2023-11-19 07:41:43,171 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:43" (1/1) ... [2023-11-19 07:41:43,171 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:43" (1/1) ... [2023-11-19 07:41:43,173 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:43" (1/1) ... [2023-11-19 07:41:43,178 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:43" (1/1) ... [2023-11-19 07:41:43,179 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:43" (1/1) ... [2023-11-19 07:41:43,180 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:43" (1/1) ... [2023-11-19 07:41:43,181 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:41:43,182 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:41:43,182 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:41:43,182 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:41:43,183 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:43" (1/1) ... [2023-11-19 07:41:43,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:43,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:43,217 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:43,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:41:43,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:41:43,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:41:43,338 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:41:43,340 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:41:43,442 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:41:43,457 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:41:43,457 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:41:43,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:43 BoogieIcfgContainer [2023-11-19 07:41:43,461 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:41:43,462 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:41:43,462 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:41:43,466 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:41:43,467 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:41:43,467 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:41:42" (1/3) ... [2023-11-19 07:41:43,468 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d1809e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:41:43, skipping insertion in model container [2023-11-19 07:41:43,468 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:41:43,468 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:43" (2/3) ... [2023-11-19 07:41:43,469 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d1809e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:41:43, skipping insertion in model container [2023-11-19 07:41:43,469 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:41:43,469 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:43" (3/3) ... [2023-11-19 07:41:43,470 INFO L332 chiAutomizerObserver]: Analyzing ICFG Ex08.c [2023-11-19 07:41:43,528 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:41:43,528 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:41:43,529 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:41:43,529 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:41:43,529 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:41:43,529 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:41:43,529 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:41:43,530 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:41:43,534 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) [2023-11-19 07:41:43,551 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:41:43,552 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:41:43,552 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:41:43,557 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:41:43,557 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 07:41:43,558 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:41:43,558 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) [2023-11-19 07:41:43,559 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:41:43,560 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:41:43,560 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:41:43,560 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:41:43,560 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 07:41:43,568 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 4#L18-1true [2023-11-19 07:41:43,569 INFO L750 eck$LassoCheckResult]: Loop: 4#L18-1true assume !!(main_~i~0#1 > 0); 10#L12true assume !(1 == main_~i~0#1); 2#L12-2true assume 10 == main_~i~0#1;main_~up~0#1 := 0; 7#L15-1true assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4#L18-1true [2023-11-19 07:41:43,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:43,575 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-19 07:41:43,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:43,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477701093] [2023-11-19 07:41:43,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:43,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:43,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:43,664 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:43,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:43,683 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:43,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:43,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 1 times [2023-11-19 07:41:43,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:43,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428250582] [2023-11-19 07:41:43,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:43,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:43,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:43,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:43,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428250582] [2023-11-19 07:41:43,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428250582] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:43,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:43,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:41:43,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550076716] [2023-11-19 07:41:43,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:43,774 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 07:41:43,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:43,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:41:43,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:41:43,810 INFO L87 Difference]: Start difference. 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 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:43,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:43,840 INFO L93 Difference]: Finished difference Result 16 states and 22 transitions. [2023-11-19 07:41:43,842 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 22 transitions. [2023-11-19 07:41:43,843 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-19 07:41:43,847 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 10 states and 15 transitions. [2023-11-19 07:41:43,848 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2023-11-19 07:41:43,848 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-19 07:41:43,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 15 transitions. [2023-11-19 07:41:43,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:43,850 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 15 transitions. [2023-11-19 07:41:43,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 15 transitions. [2023-11-19 07:41:43,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-11-19 07:41:43,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.5) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:43,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 15 transitions. [2023-11-19 07:41:43,877 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 15 transitions. [2023-11-19 07:41:43,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:41:43,883 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2023-11-19 07:41:43,883 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 07:41:43,883 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 15 transitions. [2023-11-19 07:41:43,884 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-19 07:41:43,884 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:41:43,884 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:41:43,885 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:41:43,885 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 07:41:43,885 INFO L748 eck$LassoCheckResult]: Stem: 40#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 41#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 42#L18-1 [2023-11-19 07:41:43,886 INFO L750 eck$LassoCheckResult]: Loop: 42#L18-1 assume !!(main_~i~0#1 > 0); 44#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 35#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 36#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 42#L18-1 [2023-11-19 07:41:43,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:43,887 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-11-19 07:41:43,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:43,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7207768] [2023-11-19 07:41:43,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:43,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:43,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:43,905 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:43,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:43,909 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:43,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:43,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1265324, now seen corresponding path program 1 times [2023-11-19 07:41:43,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:43,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273882598] [2023-11-19 07:41:43,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:43,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:43,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:43,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:43,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273882598] [2023-11-19 07:41:43,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273882598] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:43,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:43,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:41:43,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838796608] [2023-11-19 07:41:43,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:43,946 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 07:41:43,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:43,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:41:43,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:41:43,947 INFO L87 Difference]: Start difference. First operand 10 states and 15 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:43,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:43,975 INFO L93 Difference]: Finished difference Result 14 states and 21 transitions. [2023-11-19 07:41:43,976 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 21 transitions. [2023-11-19 07:41:43,977 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-19 07:41:43,979 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 21 transitions. [2023-11-19 07:41:43,979 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2023-11-19 07:41:43,979 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2023-11-19 07:41:43,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 21 transitions. [2023-11-19 07:41:43,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:43,980 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 21 transitions. [2023-11-19 07:41:43,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 21 transitions. [2023-11-19 07:41:43,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-19 07:41:43,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.5) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:43,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 21 transitions. [2023-11-19 07:41:43,984 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 21 transitions. [2023-11-19 07:41:43,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:41:43,986 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2023-11-19 07:41:43,986 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-19 07:41:43,987 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 21 transitions. [2023-11-19 07:41:43,987 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-19 07:41:43,988 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:41:43,988 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:41:43,988 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:41:43,989 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 07:41:43,989 INFO L748 eck$LassoCheckResult]: Stem: 69#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 70#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 72#L18-1 [2023-11-19 07:41:43,989 INFO L750 eck$LassoCheckResult]: Loop: 72#L18-1 assume !!(main_~i~0#1 > 0); 77#L12 assume !(1 == main_~i~0#1); 76#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 71#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 72#L18-1 [2023-11-19 07:41:43,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:43,990 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2023-11-19 07:41:43,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:43,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378533371] [2023-11-19 07:41:43,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:43,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:43,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:43,997 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:44,001 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:44,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:44,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1267246, now seen corresponding path program 1 times [2023-11-19 07:41:44,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:44,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551863581] [2023-11-19 07:41:44,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:44,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:44,013 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:44,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:44,019 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:44,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:44,020 INFO L85 PathProgramCache]: Analyzing trace with hash 889694448, now seen corresponding path program 1 times [2023-11-19 07:41:44,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:44,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433379913] [2023-11-19 07:41:44,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:44,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:44,029 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:44,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:44,036 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:44,099 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:44,099 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:44,100 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:44,100 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:44,100 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:41:44,100 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:44,100 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:44,100 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:44,101 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration3_Loop [2023-11-19 07:41:44,101 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:44,101 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:44,121 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:44,134 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:44,139 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:44,143 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:44,211 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:44,211 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:41:44,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:44,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:44,220 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:44,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-19 07:41:44,228 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:44,228 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:44,244 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:41:44,244 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: [] [2023-11-19 07:41:44,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-19 07:41:44,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:44,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:44,263 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:44,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-19 07:41:44,269 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:44,270 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:44,288 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:41:44,288 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:41:44,306 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 07:41:44,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:44,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:44,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:44,329 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:44,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-19 07:41:44,364 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:44,364 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:44,398 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:41:44,398 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:41:44,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:44,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:44,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:44,423 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:44,431 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:44,431 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:44,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-19 07:41:44,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:44,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:44,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:44,487 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:44,489 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:41:44,489 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:44,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-19 07:41:44,532 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:41:44,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:44,556 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:44,556 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:44,556 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:44,556 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:44,556 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:41:44,556 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:44,557 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:44,557 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:44,557 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration3_Loop [2023-11-19 07:41:44,557 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:44,557 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:44,559 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:44,569 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:44,581 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:44,587 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:44,652 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:44,656 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:41:44,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:44,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:44,659 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:44,672 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:41:44,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:44,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:44,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:44,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:44,691 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:41:44,692 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:41:44,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-19 07:41:44,708 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:41:44,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:44,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:44,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:44,735 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:44,742 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:41:44,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:44,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:44,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:44,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:44,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-19 07:41:44,761 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:41:44,761 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:41:44,773 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:41:44,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:44,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:44,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:44,800 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:44,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-19 07:41:44,806 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:41:44,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:44,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:41:44,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:44,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:44,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:44,824 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:41:44,824 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:41:44,830 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:41:44,834 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:41:44,834 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-19 07:41:44,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:44,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:44,865 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:44,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-19 07:41:44,889 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:41:44,889 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:41:44,889 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:41:44,889 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 [] [2023-11-19 07:41:44,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-11-19 07:41:44,910 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:41:44,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:44,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:44,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:44,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:44,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:41:44,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:45,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:45,018 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-19 07:41:45,019 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 21 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:45,071 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 21 transitions. cyclomatic complexity: 8. 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 35 states and 51 transitions. Complement of second has 7 states. [2023-11-19 07:41:45,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-19 07:41:45,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:45,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2023-11-19 07:41:45,075 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-19 07:41:45,076 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:45,076 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-19 07:41:45,076 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:45,077 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 8 letters. [2023-11-19 07:41:45,077 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:45,077 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 51 transitions. [2023-11-19 07:41:45,079 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 20 [2023-11-19 07:41:45,080 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 30 states and 44 transitions. [2023-11-19 07:41:45,081 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2023-11-19 07:41:45,081 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2023-11-19 07:41:45,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 44 transitions. [2023-11-19 07:41:45,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:41:45,081 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 44 transitions. [2023-11-19 07:41:45,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 44 transitions. [2023-11-19 07:41:45,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2023-11-19 07:41:45,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.44) internal successors, (36), 24 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:45,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 36 transitions. [2023-11-19 07:41:45,085 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 36 transitions. [2023-11-19 07:41:45,086 INFO L428 stractBuchiCegarLoop]: Abstraction has 25 states and 36 transitions. [2023-11-19 07:41:45,086 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-19 07:41:45,086 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 36 transitions. [2023-11-19 07:41:45,087 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2023-11-19 07:41:45,087 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:41:45,087 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:41:45,087 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-19 07:41:45,087 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 07:41:45,088 INFO L748 eck$LassoCheckResult]: Stem: 164#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 165#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; 167#L18-1 assume !!(main_~i~0#1 > 0); 161#L12 [2023-11-19 07:41:45,088 INFO L750 eck$LassoCheckResult]: Loop: 161#L12 assume !(1 == main_~i~0#1); 177#L12-2 assume !(10 == main_~i~0#1); 166#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 160#L18-1 assume !!(main_~i~0#1 > 0); 161#L12 [2023-11-19 07:41:45,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:45,089 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-19 07:41:45,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:45,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422547177] [2023-11-19 07:41:45,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:45,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:45,094 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:45,098 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:45,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:45,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1422198, now seen corresponding path program 1 times [2023-11-19 07:41:45,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:45,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86049462] [2023-11-19 07:41:45,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:45,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:45,105 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:45,109 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:45,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:45,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1810726045, now seen corresponding path program 1 times [2023-11-19 07:41:45,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:45,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371235435] [2023-11-19 07:41:45,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:45,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:45,116 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:45,121 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:45,159 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:45,159 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:45,159 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:45,159 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:45,159 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:41:45,159 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:45,159 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:45,160 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:45,160 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration4_Loop [2023-11-19 07:41:45,160 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:45,160 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:45,162 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:45,165 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:45,173 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:45,177 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:45,270 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:45,270 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:41:45,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:45,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:45,272 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:45,285 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:45,285 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:45,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-19 07:41:45,308 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:41:45,308 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:41:45,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:45,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:45,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:45,330 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:45,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-19 07:41:45,336 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:45,336 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:45,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:45,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:45,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:45,385 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:45,397 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:41:45,397 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:45,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-19 07:41:45,497 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:41:45,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:45,501 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:45,501 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:45,501 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:45,501 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:45,501 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:41:45,501 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:45,501 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:45,501 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:45,501 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration4_Loop [2023-11-19 07:41:45,502 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:45,502 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:45,503 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:45,511 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:45,520 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:45,528 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:45,616 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:45,616 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:41:45,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:45,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:45,620 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:45,627 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:41:45,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-19 07:41:45,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:45,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:45,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:45,641 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:45,644 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:41:45,644 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:41:45,656 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:41:45,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:45,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:45,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:45,681 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:45,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-19 07:41:45,687 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:41:45,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:45,700 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:41:45,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:45,700 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-19 07:41:45,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:45,703 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-19 07:41:45,703 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:41:45,713 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:41:45,716 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-19 07:41:45,716 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:41:45,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:45,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:45,719 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:45,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-19 07:41:45,722 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:41:45,722 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:41:45,722 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:41:45,722 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 [] [2023-11-19 07:41:45,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:45,747 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:41:45,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:45,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:45,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:45,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:45,779 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:41:45,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:45,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:45,822 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-19 07:41:45,822 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 36 transitions. cyclomatic complexity: 14 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:45,868 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 36 transitions. cyclomatic complexity: 14. 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 41 states and 59 transitions. Complement of second has 7 states. [2023-11-19 07:41:45,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-19 07:41:45,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:45,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-19 07:41:45,872 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2023-11-19 07:41:45,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:45,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 4 letters. [2023-11-19 07:41:45,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:45,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 8 letters. [2023-11-19 07:41:45,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:45,874 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 59 transitions. [2023-11-19 07:41:45,879 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-19 07:41:45,883 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 32 states and 49 transitions. [2023-11-19 07:41:45,883 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2023-11-19 07:41:45,884 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2023-11-19 07:41:45,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 49 transitions. [2023-11-19 07:41:45,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:41:45,885 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 49 transitions. [2023-11-19 07:41:45,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 49 transitions. [2023-11-19 07:41:45,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-19 07:41:45,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.53125) internal successors, (49), 31 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:45,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 49 transitions. [2023-11-19 07:41:45,897 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32 states and 49 transitions. [2023-11-19 07:41:45,897 INFO L428 stractBuchiCegarLoop]: Abstraction has 32 states and 49 transitions. [2023-11-19 07:41:45,897 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-19 07:41:45,898 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 49 transitions. [2023-11-19 07:41:45,900 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-19 07:41:45,900 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:41:45,901 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:41:45,901 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:41:45,901 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 07:41:45,902 INFO L748 eck$LassoCheckResult]: Stem: 273#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 274#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 277#L18-1 assume !!(main_~i~0#1 > 0); 280#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 281#L12-2 assume !(10 == main_~i~0#1); 287#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 288#L18-1 [2023-11-19 07:41:45,902 INFO L750 eck$LassoCheckResult]: Loop: 288#L18-1 assume !!(main_~i~0#1 > 0); 295#L12 assume !(1 == main_~i~0#1); 289#L12-2 assume !(10 == main_~i~0#1); 290#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 288#L18-1 [2023-11-19 07:41:45,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:45,902 INFO L85 PathProgramCache]: Analyzing trace with hash 889692586, now seen corresponding path program 1 times [2023-11-19 07:41:45,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:45,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471471871] [2023-11-19 07:41:45,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:45,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:45,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:45,931 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:45,936 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:45,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:45,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1267306, now seen corresponding path program 1 times [2023-11-19 07:41:45,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:45,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833040552] [2023-11-19 07:41:45,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:45,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:45,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:45,947 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:45,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:45,952 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:45,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:45,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1068497811, now seen corresponding path program 1 times [2023-11-19 07:41:45,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:45,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164838191] [2023-11-19 07:41:45,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:45,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:45,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:45,967 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:45,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:45,977 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:46,017 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:46,017 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:46,017 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:46,017 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:46,018 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:41:46,018 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:46,018 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:46,018 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:46,018 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration5_Loop [2023-11-19 07:41:46,018 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:46,018 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:46,020 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:46,030 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:46,033 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:46,036 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:46,139 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:46,139 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:41:46,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:46,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:46,140 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:46,144 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:46,145 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:46,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-19 07:41:46,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:46,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:46,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:46,193 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:46,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-19 07:41:46,197 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:41:46,197 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:46,235 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:41:46,235 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0#1=14} Honda state: {ULTIMATE.start_main_~i~0#1=14} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0#1=1}, {ULTIMATE.start_main_~i~0#1=0}, {ULTIMATE.start_main_~i~0#1=0}] Lambdas: [1, 17, 6] Nus: [1, 0] [2023-11-19 07:41:46,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:46,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:46,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:46,261 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:46,269 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:46,270 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:46,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-19 07:41:46,292 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:41:46,292 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:41:46,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:46,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:46,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:46,318 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:46,330 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:46,331 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:46,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-19 07:41:46,364 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:41:46,364 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: [] [2023-11-19 07:41:46,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:46,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:46,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:46,387 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:46,393 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:46,393 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:46,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-19 07:41:46,411 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:41:46,411 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:41:46,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:46,470 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:46,471 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:46,471 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:46,471 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:46,471 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:41:46,471 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:46,471 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:46,471 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:46,471 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration5_Lasso [2023-11-19 07:41:46,471 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:46,472 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:46,473 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:46,477 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:46,480 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:46,483 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:46,486 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:46,497 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:46,644 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:46,645 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:41:46,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:46,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:46,646 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:46,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:46,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-19 07:41:46,668 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:46,669 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:46,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:46,700 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:41:46,700 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=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:41:46,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:46,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:46,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:46,725 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:46,730 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:46,731 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:46,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-19 07:41:46,760 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:41:46,760 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:41:46,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:46,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:46,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:46,785 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:46,788 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:46,788 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:46,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-19 07:41:46,820 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:41:46,820 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_6=1} Honda state: {v_rep~unnamed0~0~true_6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:41:46,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-11-19 07:41:46,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:46,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:46,835 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:46,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-19 07:41:46,837 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:46,837 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:46,868 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:41:46,868 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:41:46,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:46,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:46,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:46,890 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:46,897 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:46,897 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:46,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-19 07:41:46,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:46,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:46,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:46,953 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:46,961 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:41:46,961 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:46,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-19 07:41:47,015 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:41:47,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:47,024 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:47,024 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:47,024 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:47,024 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:47,024 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:41:47,024 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:47,024 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:47,024 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:47,024 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration5_Lasso [2023-11-19 07:41:47,024 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:47,025 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:47,026 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:47,033 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:47,037 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:47,042 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:47,044 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:47,048 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:47,172 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:47,172 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:41:47,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:47,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:47,174 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:47,182 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:41:47,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-19 07:41:47,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:47,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:47,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:47,197 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:47,200 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:41:47,200 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:41:47,213 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:41:47,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:47,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:47,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:47,239 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:47,241 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:41:47,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-19 07:41:47,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:47,256 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:41:47,256 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:47,256 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:47,256 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:47,257 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:41:47,257 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:41:47,266 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:41:47,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:47,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:47,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:47,287 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:47,290 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:41:47,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:47,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:47,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:47,303 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:47,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-19 07:41:47,310 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:41:47,310 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:41:47,321 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:41:47,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:47,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:47,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:47,342 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:47,348 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 [2023-11-19 07:41:47,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-19 07:41:47,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:47,362 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:41:47,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:47,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:47,363 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:47,364 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:41:47,364 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:41:47,379 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:41:47,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:47,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:47,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:47,406 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:47,414 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:41:47,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-19 07:41:47,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:47,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:47,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:47,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:47,431 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:41:47,431 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:41:47,451 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:41:47,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:47,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:47,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:47,474 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:47,480 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:41:47,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-19 07:41:47,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:47,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:47,492 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-19 07:41:47,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:47,508 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2023-11-19 07:41:47,508 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2023-11-19 07:41:47,533 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:41:47,568 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2023-11-19 07:41:47,569 INFO L444 ModelExtractionUtils]: 1 out of 11 variables were initially zero. Simplification set additionally 5 variables to zero. [2023-11-19 07:41:47,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:47,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:47,572 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:47,582 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:41:47,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-19 07:41:47,622 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2023-11-19 07:41:47,623 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:41:47,623 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 21 Supporting invariants [-1*ULTIMATE.start_main_~i~0#1 + 10 >= 0] [2023-11-19 07:41:47,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:47,656 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-11-19 07:41:47,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:47,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:41:47,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:47,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:47,742 WARN L260 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:41:47,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:47,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:47,801 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2023-11-19 07:41:47,801 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 49 transitions. cyclomatic complexity: 21 Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:47,893 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 49 transitions. cyclomatic complexity: 21. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 46 states and 68 transitions. Complement of second has 8 states. [2023-11-19 07:41:47,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-19 07:41:47,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:47,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2023-11-19 07:41:47,896 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-19 07:41:47,896 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:47,896 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 10 letters. Loop has 4 letters. [2023-11-19 07:41:47,896 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:47,897 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 6 letters. Loop has 8 letters. [2023-11-19 07:41:47,897 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:47,897 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 68 transitions. [2023-11-19 07:41:47,899 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-19 07:41:47,900 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 45 states and 67 transitions. [2023-11-19 07:41:47,900 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2023-11-19 07:41:47,901 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2023-11-19 07:41:47,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 67 transitions. [2023-11-19 07:41:47,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:41:47,901 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45 states and 67 transitions. [2023-11-19 07:41:47,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 67 transitions. [2023-11-19 07:41:47,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2023-11-19 07:41:47,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.5238095238095237) internal successors, (64), 41 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:47,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 64 transitions. [2023-11-19 07:41:47,907 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 64 transitions. [2023-11-19 07:41:47,907 INFO L428 stractBuchiCegarLoop]: Abstraction has 42 states and 64 transitions. [2023-11-19 07:41:47,907 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-19 07:41:47,907 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 64 transitions. [2023-11-19 07:41:47,909 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-19 07:41:47,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:41:47,909 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:41:47,910 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:47,910 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 07:41:47,910 INFO L748 eck$LassoCheckResult]: Stem: 416#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 417#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; 420#L18-1 assume !!(main_~i~0#1 > 0); 429#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 426#L12-2 assume !(10 == main_~i~0#1); 425#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 424#L18-1 assume !!(main_~i~0#1 > 0); 421#L12 assume !(1 == main_~i~0#1); 422#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 447#L15-1 [2023-11-19 07:41:47,910 INFO L750 eck$LassoCheckResult]: Loop: 447#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 446#L18-1 assume !!(main_~i~0#1 > 0); 444#L12 assume !(1 == main_~i~0#1); 445#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 447#L15-1 [2023-11-19 07:41:47,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:47,911 INFO L85 PathProgramCache]: Analyzing trace with hash 588656997, now seen corresponding path program 1 times [2023-11-19 07:41:47,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:47,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310724706] [2023-11-19 07:41:47,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:47,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:47,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:47,975 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:47,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:47,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310724706] [2023-11-19 07:41:47,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310724706] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:41:47,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547289568] [2023-11-19 07:41:47,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:47,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:47,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:47,977 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:47,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-19 07:41:48,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:48,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:41:48,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:48,029 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:48,030 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:41:48,057 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:48,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547289568] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:41:48,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:41:48,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-11-19 07:41:48,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602913084] [2023-11-19 07:41:48,058 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:41:48,058 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 07:41:48,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:48,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1768756, now seen corresponding path program 2 times [2023-11-19 07:41:48,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:48,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544015181] [2023-11-19 07:41:48,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:48,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:48,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:48,065 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:48,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:48,069 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:48,113 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:48,113 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:48,114 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:48,114 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:48,114 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:41:48,114 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:48,114 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:48,114 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:48,114 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration6_Loop [2023-11-19 07:41:48,114 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:48,115 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:48,116 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:48,122 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:48,126 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:48,131 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:48,185 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:48,185 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:41:48,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:48,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:48,188 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:48,196 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:48,196 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:48,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-19 07:41:48,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:48,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:48,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:48,245 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:48,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-19 07:41:48,247 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:41:48,247 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:48,265 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:41:48,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:48,291 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:48,291 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:48,291 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:48,291 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:48,291 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:41:48,291 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:48,291 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:48,291 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:48,292 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration6_Loop [2023-11-19 07:41:48,292 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:48,292 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:48,293 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:48,301 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:48,305 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:48,310 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:48,379 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:48,379 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:41:48,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:48,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:48,380 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:48,384 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:41:48,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-19 07:41:48,398 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:48,398 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:41:48,398 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:48,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:48,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:48,400 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:41:48,400 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:41:48,409 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:41:48,412 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-19 07:41:48,412 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:41:48,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:48,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:48,419 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:48,421 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:41:48,421 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:41:48,421 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:41:48,421 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 [] [2023-11-19 07:41:48,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-19 07:41:48,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:48,448 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:41:48,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:48,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:48,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:48,472 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:48,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:41:48,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:48,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:48,510 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-19 07:41:48,511 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 27 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:48,556 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 27. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 105 states and 160 transitions. Complement of second has 7 states. [2023-11-19 07:41:48,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-19 07:41:48,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:48,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-11-19 07:41:48,560 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-19 07:41:48,560 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:48,560 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 13 letters. Loop has 4 letters. [2023-11-19 07:41:48,561 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:48,562 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 8 letters. [2023-11-19 07:41:48,564 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:48,564 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 105 states and 160 transitions. [2023-11-19 07:41:48,569 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2023-11-19 07:41:48,570 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 105 states to 87 states and 133 transitions. [2023-11-19 07:41:48,571 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2023-11-19 07:41:48,571 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2023-11-19 07:41:48,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 133 transitions. [2023-11-19 07:41:48,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:41:48,571 INFO L218 hiAutomatonCegarLoop]: Abstraction has 87 states and 133 transitions. [2023-11-19 07:41:48,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 133 transitions. [2023-11-19 07:41:48,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 82. [2023-11-19 07:41:48,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 82 states have (on average 1.548780487804878) internal successors, (127), 81 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:48,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 127 transitions. [2023-11-19 07:41:48,580 INFO L240 hiAutomatonCegarLoop]: Abstraction has 82 states and 127 transitions. [2023-11-19 07:41:48,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:48,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:41:48,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:41:48,581 INFO L87 Difference]: Start difference. First operand 82 states and 127 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:48,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:48,652 INFO L93 Difference]: Finished difference Result 160 states and 239 transitions. [2023-11-19 07:41:48,652 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 239 transitions. [2023-11-19 07:41:48,654 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 52 [2023-11-19 07:41:48,657 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 160 states and 239 transitions. [2023-11-19 07:41:48,657 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 94 [2023-11-19 07:41:48,658 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 94 [2023-11-19 07:41:48,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 160 states and 239 transitions. [2023-11-19 07:41:48,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:41:48,658 INFO L218 hiAutomatonCegarLoop]: Abstraction has 160 states and 239 transitions. [2023-11-19 07:41:48,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states and 239 transitions. [2023-11-19 07:41:48,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 136. [2023-11-19 07:41:48,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 136 states have (on average 1.5220588235294117) internal successors, (207), 135 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:48,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 207 transitions. [2023-11-19 07:41:48,674 INFO L240 hiAutomatonCegarLoop]: Abstraction has 136 states and 207 transitions. [2023-11-19 07:41:48,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:41:48,676 INFO L428 stractBuchiCegarLoop]: Abstraction has 136 states and 207 transitions. [2023-11-19 07:41:48,676 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-19 07:41:48,678 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 136 states and 207 transitions. [2023-11-19 07:41:48,679 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 44 [2023-11-19 07:41:48,679 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:41:48,680 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:41:48,680 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1] [2023-11-19 07:41:48,680 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 07:41:48,680 INFO L748 eck$LassoCheckResult]: Stem: 918#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 919#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; 922#L18-1 assume !!(main_~i~0#1 > 0); 933#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 931#L12-2 assume !(10 == main_~i~0#1); 926#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 927#L18-1 assume !!(main_~i~0#1 > 0); 1005#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 979#L12-2 assume !(10 == main_~i~0#1); 1007#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 985#L18-1 [2023-11-19 07:41:48,681 INFO L750 eck$LassoCheckResult]: Loop: 985#L18-1 assume !!(main_~i~0#1 > 0); 995#L12 assume !(1 == main_~i~0#1); 968#L12-2 assume !(10 == main_~i~0#1); 990#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 985#L18-1 [2023-11-19 07:41:48,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:48,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1068495891, now seen corresponding path program 1 times [2023-11-19 07:41:48,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:48,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961240250] [2023-11-19 07:41:48,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:48,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:48,719 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:48,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:48,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961240250] [2023-11-19 07:41:48,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961240250] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:48,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:48,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:41:48,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500677305] [2023-11-19 07:41:48,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:48,721 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 07:41:48,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:48,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1267308, now seen corresponding path program 2 times [2023-11-19 07:41:48,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:48,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490771621] [2023-11-19 07:41:48,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:48,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:48,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:48,726 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:48,729 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:48,759 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:48,759 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:48,759 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:48,759 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:48,759 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:41:48,759 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:48,759 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:48,759 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:48,759 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration7_Loop [2023-11-19 07:41:48,759 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:48,760 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:48,761 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:48,769 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:48,772 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:48,775 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:48,858 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:48,858 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:41:48,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:48,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:48,859 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:48,869 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:48,869 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:48,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-19 07:41:48,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:48,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:48,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:48,935 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:48,940 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:41:48,940 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:48,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-19 07:41:48,986 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:41:48,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2023-11-19 07:41:48,990 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:48,990 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:48,990 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:48,990 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:48,990 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:41:48,990 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:48,990 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:48,991 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:48,991 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration7_Loop [2023-11-19 07:41:48,991 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:48,991 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:48,992 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:49,016 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:49,019 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:49,021 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:49,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:49,153 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:49,153 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:41:49,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:49,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:49,155 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:49,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-11-19 07:41:49,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:49,166 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:41:49,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:49,177 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:41:49,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:49,177 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-19 07:41:49,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:49,180 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-19 07:41:49,180 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:41:49,195 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:41:49,208 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-19 07:41:49,208 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:41:49,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:49,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:49,210 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:49,216 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:41:49,216 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:41:49,216 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:41:49,216 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 [] [2023-11-19 07:41:49,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-19 07:41:49,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:49,237 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:41:49,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:49,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:49,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:49,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:49,291 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:41:49,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:49,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:49,325 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-19 07:41:49,326 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 136 states and 207 transitions. cyclomatic complexity: 82 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:49,362 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 136 states and 207 transitions. cyclomatic complexity: 82. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 248 states and 381 transitions. Complement of second has 5 states. [2023-11-19 07:41:49,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-19 07:41:49,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:49,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2023-11-19 07:41:49,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 10 letters. Loop has 4 letters. [2023-11-19 07:41:49,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:49,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 14 letters. Loop has 4 letters. [2023-11-19 07:41:49,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:49,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 10 letters. Loop has 8 letters. [2023-11-19 07:41:49,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:49,365 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 248 states and 381 transitions. [2023-11-19 07:41:49,369 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 44 [2023-11-19 07:41:49,372 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 248 states to 224 states and 333 transitions. [2023-11-19 07:41:49,372 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 101 [2023-11-19 07:41:49,373 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 112 [2023-11-19 07:41:49,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 224 states and 333 transitions. [2023-11-19 07:41:49,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:41:49,373 INFO L218 hiAutomatonCegarLoop]: Abstraction has 224 states and 333 transitions. [2023-11-19 07:41:49,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states and 333 transitions. [2023-11-19 07:41:49,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 202. [2023-11-19 07:41:49,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 202 states have (on average 1.504950495049505) internal successors, (304), 201 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:49,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 304 transitions. [2023-11-19 07:41:49,387 INFO L240 hiAutomatonCegarLoop]: Abstraction has 202 states and 304 transitions. [2023-11-19 07:41:49,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:49,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:41:49,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:41:49,388 INFO L87 Difference]: Start difference. First operand 202 states and 304 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:49,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:49,410 INFO L93 Difference]: Finished difference Result 230 states and 313 transitions. [2023-11-19 07:41:49,410 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 230 states and 313 transitions. [2023-11-19 07:41:49,413 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 58 [2023-11-19 07:41:49,416 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 230 states to 230 states and 313 transitions. [2023-11-19 07:41:49,416 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 129 [2023-11-19 07:41:49,416 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 129 [2023-11-19 07:41:49,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 230 states and 313 transitions. [2023-11-19 07:41:49,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:41:49,417 INFO L218 hiAutomatonCegarLoop]: Abstraction has 230 states and 313 transitions. [2023-11-19 07:41:49,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states and 313 transitions. [2023-11-19 07:41:49,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 201. [2023-11-19 07:41:49,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 201 states have (on average 1.3830845771144278) internal successors, (278), 200 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:49,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 278 transitions. [2023-11-19 07:41:49,454 INFO L240 hiAutomatonCegarLoop]: Abstraction has 201 states and 278 transitions. [2023-11-19 07:41:49,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:41:49,455 INFO L428 stractBuchiCegarLoop]: Abstraction has 201 states and 278 transitions. [2023-11-19 07:41:49,455 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-19 07:41:49,455 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 278 transitions. [2023-11-19 07:41:49,457 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 52 [2023-11-19 07:41:49,457 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:41:49,457 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:41:49,458 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-19 07:41:49,458 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 07:41:49,458 INFO L748 eck$LassoCheckResult]: Stem: 1796#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1797#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; 1800#L18-1 assume !!(main_~i~0#1 > 0); 1816#L12 assume !(1 == main_~i~0#1); 1819#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 1818#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 1814#L18-1 assume !!(main_~i~0#1 > 0); 1815#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 1940#L12-2 assume !(10 == main_~i~0#1); 1824#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 1803#L18-1 assume !!(main_~i~0#1 > 0); 1804#L12 assume !(1 == main_~i~0#1); 1986#L12-2 assume !(10 == main_~i~0#1); 1807#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 1791#L18-1 [2023-11-19 07:41:49,459 INFO L750 eck$LassoCheckResult]: Loop: 1791#L18-1 assume !!(main_~i~0#1 > 0); 1792#L12 assume !(1 == main_~i~0#1); 1801#L12-2 assume !(10 == main_~i~0#1); 1808#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 1791#L18-1 [2023-11-19 07:41:49,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:49,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1454758974, now seen corresponding path program 1 times [2023-11-19 07:41:49,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:49,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737836277] [2023-11-19 07:41:49,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:49,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:49,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:49,523 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:41:49,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:49,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737836277] [2023-11-19 07:41:49,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737836277] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:49,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:49,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:41:49,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840184418] [2023-11-19 07:41:49,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:49,525 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 07:41:49,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:49,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1267308, now seen corresponding path program 3 times [2023-11-19 07:41:49,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:49,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996212152] [2023-11-19 07:41:49,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:49,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:49,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:49,533 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:49,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:49,547 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:49,581 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:49,581 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:49,581 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:49,582 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:49,582 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:41:49,582 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:49,582 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:49,582 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:49,582 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration8_Loop [2023-11-19 07:41:49,582 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:49,582 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:49,584 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:49,588 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:49,591 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:49,596 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:49,704 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:49,704 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:41:49,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:49,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:49,711 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:49,716 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:49,716 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:49,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-19 07:41:49,740 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:41:49,741 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_12=1} Honda state: {v_rep~unnamed0~0~true_12=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:41:49,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:49,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:49,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:49,762 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:49,764 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:49,764 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:49,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-19 07:41:49,804 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:41:49,804 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=4} Honda state: {ULTIMATE.start_main_~up~0#1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:41:49,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:49,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:49,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:49,828 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:49,832 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:49,832 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:49,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-19 07:41:49,868 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:41:49,868 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_12=0} Honda state: {v_rep~unnamed0~0~false_12=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:41:49,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:49,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:49,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:49,891 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:49,893 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:49,893 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:49,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-19 07:41:49,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:49,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:49,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:49,949 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:49,952 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:41:49,952 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:49,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-19 07:41:50,028 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:41:50,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:50,033 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:50,033 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:50,033 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:50,033 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:50,033 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:41:50,033 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:50,033 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:50,033 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:50,034 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration8_Loop [2023-11-19 07:41:50,034 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:50,034 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:50,035 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:50,039 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:50,042 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:50,046 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:50,163 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:50,163 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:41:50,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:50,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:50,165 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:50,167 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:41:50,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-11-19 07:41:50,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:50,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:50,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:50,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:50,185 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:41:50,185 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:41:50,203 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:41:50,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:50,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:50,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:50,224 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:50,228 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:41:50,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-11-19 07:41:50,241 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:50,242 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:41:50,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:50,242 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-19 07:41:50,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:50,243 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-19 07:41:50,243 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:41:50,252 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:41:50,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:50,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:50,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:50,273 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:50,280 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:41:50,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-11-19 07:41:50,294 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:50,294 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:50,294 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:50,294 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:50,296 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:41:50,296 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:41:50,315 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:41:50,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:50,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:50,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:50,338 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:50,341 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:41:50,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2023-11-19 07:41:50,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:50,356 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:41:50,356 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:50,356 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-19 07:41:50,356 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:50,358 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-19 07:41:50,358 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:41:50,375 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:41:50,378 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-19 07:41:50,378 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:41:50,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:50,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:50,380 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:50,383 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:41:50,383 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:41:50,383 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:41:50,383 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 [] [2023-11-19 07:41:50,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2023-11-19 07:41:50,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:50,405 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:41:50,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:50,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:50,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:50,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:50,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:50,468 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:41:50,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:50,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:50,500 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-19 07:41:50,500 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 201 states and 278 transitions. cyclomatic complexity: 94 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:50,535 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 201 states and 278 transitions. cyclomatic complexity: 94. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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 280 states and 401 transitions. Complement of second has 5 states. [2023-11-19 07:41:50,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-19 07:41:50,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:50,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2023-11-19 07:41:50,537 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 14 letters. Loop has 4 letters. [2023-11-19 07:41:50,539 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:50,540 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:41:50,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:50,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:50,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:50,605 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:41:50,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:50,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:50,632 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-19 07:41:50,632 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 201 states and 278 transitions. cyclomatic complexity: 94 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:50,658 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 201 states and 278 transitions. cyclomatic complexity: 94. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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 280 states and 401 transitions. Complement of second has 5 states. [2023-11-19 07:41:50,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-19 07:41:50,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:50,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2023-11-19 07:41:50,660 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 14 letters. Loop has 4 letters. [2023-11-19 07:41:50,660 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:50,660 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:41:50,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:50,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:50,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:50,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:50,706 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:41:50,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:50,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:50,736 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-19 07:41:50,736 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 201 states and 278 transitions. cyclomatic complexity: 94 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:50,771 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 201 states and 278 transitions. cyclomatic complexity: 94. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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 334 states and 496 transitions. Complement of second has 4 states. [2023-11-19 07:41:50,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-19 07:41:50,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:50,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2023-11-19 07:41:50,775 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 14 letters. Loop has 4 letters. [2023-11-19 07:41:50,775 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:50,776 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 18 letters. Loop has 4 letters. [2023-11-19 07:41:50,777 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:50,777 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 14 letters. Loop has 8 letters. [2023-11-19 07:41:50,779 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:50,779 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 334 states and 496 transitions. [2023-11-19 07:41:50,784 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2023-11-19 07:41:50,788 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 334 states to 268 states and 378 transitions. [2023-11-19 07:41:50,789 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 111 [2023-11-19 07:41:50,789 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 129 [2023-11-19 07:41:50,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 268 states and 378 transitions. [2023-11-19 07:41:50,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:41:50,790 INFO L218 hiAutomatonCegarLoop]: Abstraction has 268 states and 378 transitions. [2023-11-19 07:41:50,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states and 378 transitions. [2023-11-19 07:41:50,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 167. [2023-11-19 07:41:50,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 167 states have (on average 1.401197604790419) internal successors, (234), 166 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:50,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 234 transitions. [2023-11-19 07:41:50,805 INFO L240 hiAutomatonCegarLoop]: Abstraction has 167 states and 234 transitions. [2023-11-19 07:41:50,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:50,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:41:50,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:41:50,806 INFO L87 Difference]: Start difference. First operand 167 states and 234 transitions. 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) [2023-11-19 07:41:50,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:50,840 INFO L93 Difference]: Finished difference Result 179 states and 246 transitions. [2023-11-19 07:41:50,840 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 179 states and 246 transitions. [2023-11-19 07:41:50,842 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 92 [2023-11-19 07:41:50,844 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 179 states to 177 states and 243 transitions. [2023-11-19 07:41:50,845 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 93 [2023-11-19 07:41:50,845 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 93 [2023-11-19 07:41:50,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 243 transitions. [2023-11-19 07:41:50,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:41:50,846 INFO L218 hiAutomatonCegarLoop]: Abstraction has 177 states and 243 transitions. [2023-11-19 07:41:50,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 243 transitions. [2023-11-19 07:41:50,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 170. [2023-11-19 07:41:50,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 170 states have (on average 1.3764705882352941) internal successors, (234), 169 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:50,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 234 transitions. [2023-11-19 07:41:50,852 INFO L240 hiAutomatonCegarLoop]: Abstraction has 170 states and 234 transitions. [2023-11-19 07:41:50,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:41:50,854 INFO L428 stractBuchiCegarLoop]: Abstraction has 170 states and 234 transitions. [2023-11-19 07:41:50,854 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-19 07:41:50,855 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 170 states and 234 transitions. [2023-11-19 07:41:50,856 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 90 [2023-11-19 07:41:50,857 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:41:50,857 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:41:50,858 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:50,858 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 1, 1] [2023-11-19 07:41:50,858 INFO L748 eck$LassoCheckResult]: Stem: 3427#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3428#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; 3432#L18-1 assume !!(main_~i~0#1 > 0); 3546#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 3533#L12-2 assume !(10 == main_~i~0#1); 3435#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3436#L18-1 assume !!(main_~i~0#1 > 0); 3553#L12 assume !(1 == main_~i~0#1); 3545#L12-2 assume !(10 == main_~i~0#1); 3543#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3440#L18-1 [2023-11-19 07:41:50,859 INFO L750 eck$LassoCheckResult]: Loop: 3440#L18-1 assume !!(main_~i~0#1 > 0); 3536#L12 assume !(1 == main_~i~0#1); 3474#L12-2 assume !(10 == main_~i~0#1); 3532#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3530#L18-1 assume !!(main_~i~0#1 > 0); 3528#L12 assume !(1 == main_~i~0#1); 3525#L12-2 assume !(10 == main_~i~0#1); 3438#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3440#L18-1 [2023-11-19 07:41:50,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:50,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1068497813, now seen corresponding path program 1 times [2023-11-19 07:41:50,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:50,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688805751] [2023-11-19 07:41:50,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:50,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:50,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:50,907 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:41:50,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:50,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688805751] [2023-11-19 07:41:50,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688805751] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:50,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:50,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:41:50,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61500544] [2023-11-19 07:41:50,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:50,909 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 07:41:50,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:50,909 INFO L85 PathProgramCache]: Analyzing trace with hash -2142023595, now seen corresponding path program 1 times [2023-11-19 07:41:50,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:50,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585277079] [2023-11-19 07:41:50,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:50,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:50,941 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:50,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:50,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585277079] [2023-11-19 07:41:50,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585277079] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:50,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:50,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:41:50,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102307675] [2023-11-19 07:41:50,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:50,943 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 07:41:50,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:50,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:41:50,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:41:50,944 INFO L87 Difference]: Start difference. First operand 170 states and 234 transitions. cyclomatic complexity: 73 Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:50,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:50,955 INFO L93 Difference]: Finished difference Result 104 states and 118 transitions. [2023-11-19 07:41:50,956 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 104 states and 118 transitions. [2023-11-19 07:41:50,957 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2023-11-19 07:41:50,958 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 104 states to 84 states and 95 transitions. [2023-11-19 07:41:50,958 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2023-11-19 07:41:50,959 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2023-11-19 07:41:50,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 84 states and 95 transitions. [2023-11-19 07:41:50,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:41:50,959 INFO L218 hiAutomatonCegarLoop]: Abstraction has 84 states and 95 transitions. [2023-11-19 07:41:50,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states and 95 transitions. [2023-11-19 07:41:50,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2023-11-19 07:41:50,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 82 states have (on average 1.1341463414634145) internal successors, (93), 81 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:50,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 93 transitions. [2023-11-19 07:41:50,962 INFO L240 hiAutomatonCegarLoop]: Abstraction has 82 states and 93 transitions. [2023-11-19 07:41:50,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:41:50,964 INFO L428 stractBuchiCegarLoop]: Abstraction has 82 states and 93 transitions. [2023-11-19 07:41:50,964 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2023-11-19 07:41:50,964 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states and 93 transitions. [2023-11-19 07:41:50,965 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 26 [2023-11-19 07:41:50,965 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:41:50,966 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:41:50,968 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 5, 5, 4, 2, 1, 1, 1, 1] [2023-11-19 07:41:50,968 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [6, 5, 5, 4, 2, 1, 1] [2023-11-19 07:41:50,969 INFO L748 eck$LassoCheckResult]: Stem: 3709#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3710#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 3713#L18-1 assume !!(main_~i~0#1 > 0); 3740#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 3734#L12-2 assume !(10 == main_~i~0#1); 3733#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3732#L18-1 assume !!(main_~i~0#1 > 0); 3731#L12 assume !(1 == main_~i~0#1); 3730#L12-2 assume !(10 == main_~i~0#1); 3729#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3728#L18-1 assume !!(main_~i~0#1 > 0); 3727#L12 assume !(1 == main_~i~0#1); 3726#L12-2 assume !(10 == main_~i~0#1); 3725#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3724#L18-1 assume !!(main_~i~0#1 > 0); 3721#L12 assume !(1 == main_~i~0#1); 3723#L12-2 assume !(10 == main_~i~0#1); 3722#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3720#L18-1 assume !!(main_~i~0#1 > 0); 3719#L12 assume !(1 == main_~i~0#1); 3718#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 3711#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3707#L18-1 assume !!(main_~i~0#1 > 0); 3708#L12 assume !(1 == main_~i~0#1); 3702#L12-2 assume !(10 == main_~i~0#1); 3704#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3712#L18-1 assume !!(main_~i~0#1 > 0); 3714#L12 [2023-11-19 07:41:50,969 INFO L750 eck$LassoCheckResult]: Loop: 3714#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 3700#L12-2 assume !(10 == main_~i~0#1); 3701#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3705#L18-1 assume !!(main_~i~0#1 > 0); 3706#L12 assume !(1 == main_~i~0#1); 3781#L12-2 assume !(10 == main_~i~0#1); 3780#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3779#L18-1 assume !!(main_~i~0#1 > 0); 3778#L12 assume !(1 == main_~i~0#1); 3777#L12-2 assume !(10 == main_~i~0#1); 3776#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3775#L18-1 assume !!(main_~i~0#1 > 0); 3774#L12 assume !(1 == main_~i~0#1); 3773#L12-2 assume !(10 == main_~i~0#1); 3748#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3744#L18-1 assume !!(main_~i~0#1 > 0); 3736#L12 assume !(1 == main_~i~0#1); 3737#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 3715#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3716#L18-1 assume !!(main_~i~0#1 > 0); 3708#L12 assume !(1 == main_~i~0#1); 3702#L12-2 assume !(10 == main_~i~0#1); 3704#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3712#L18-1 assume !!(main_~i~0#1 > 0); 3714#L12 [2023-11-19 07:41:50,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:50,970 INFO L85 PathProgramCache]: Analyzing trace with hash -608617554, now seen corresponding path program 2 times [2023-11-19 07:41:50,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:50,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123228118] [2023-11-19 07:41:50,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:50,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:50,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:51,094 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 36 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:41:51,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:51,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123228118] [2023-11-19 07:41:51,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123228118] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:41:51,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198116651] [2023-11-19 07:41:51,095 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:41:51,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:51,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:51,096 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:51,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-19 07:41:51,138 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:41:51,138 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:41:51,139 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:41:51,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:51,172 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 36 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:41:51,172 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:41:51,245 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 36 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:41:51,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198116651] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:41:51,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:41:51,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2023-11-19 07:41:51,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685368509] [2023-11-19 07:41:51,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:41:51,246 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 07:41:51,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:51,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1118663673, now seen corresponding path program 1 times [2023-11-19 07:41:51,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:51,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036121406] [2023-11-19 07:41:51,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:51,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:51,318 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:41:51,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:51,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036121406] [2023-11-19 07:41:51,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036121406] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:41:51,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615653365] [2023-11-19 07:41:51,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:51,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:51,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:51,327 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:51,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-19 07:41:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:51,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:41:51,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:51,406 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:41:51,407 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:41:51,498 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:41:51,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615653365] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:41:51,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:41:51,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2023-11-19 07:41:51,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803141198] [2023-11-19 07:41:51,503 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:41:51,504 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 07:41:51,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:51,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:41:51,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:41:51,505 INFO L87 Difference]: Start difference. First operand 82 states and 93 transitions. cyclomatic complexity: 17 Second operand has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:51,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:51,582 INFO L93 Difference]: Finished difference Result 169 states and 180 transitions. [2023-11-19 07:41:51,582 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 169 states and 180 transitions. [2023-11-19 07:41:51,584 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 47 [2023-11-19 07:41:51,586 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 169 states to 149 states and 160 transitions. [2023-11-19 07:41:51,586 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2023-11-19 07:41:51,587 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2023-11-19 07:41:51,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 149 states and 160 transitions. [2023-11-19 07:41:51,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:41:51,587 INFO L218 hiAutomatonCegarLoop]: Abstraction has 149 states and 160 transitions. [2023-11-19 07:41:51,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states and 160 transitions. [2023-11-19 07:41:51,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 142. [2023-11-19 07:41:51,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 142 states have (on average 1.0774647887323943) internal successors, (153), 141 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:51,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 153 transitions. [2023-11-19 07:41:51,592 INFO L240 hiAutomatonCegarLoop]: Abstraction has 142 states and 153 transitions. [2023-11-19 07:41:51,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:41:51,594 INFO L428 stractBuchiCegarLoop]: Abstraction has 142 states and 153 transitions. [2023-11-19 07:41:51,594 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2023-11-19 07:41:51,594 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 142 states and 153 transitions. [2023-11-19 07:41:51,595 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 46 [2023-11-19 07:41:51,596 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:41:51,596 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:41:51,601 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [12, 10, 10, 9, 2, 1, 1, 1, 1] [2023-11-19 07:41:51,601 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [11, 10, 10, 9, 2, 1, 1] [2023-11-19 07:41:51,602 INFO L748 eck$LassoCheckResult]: Stem: 4276#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 4277#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; 4280#L18-1 assume !!(main_~i~0#1 > 0); 4382#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 4268#L12-2 assume !(10 == main_~i~0#1); 4269#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4368#L18-1 assume !!(main_~i~0#1 > 0); 4367#L12 assume !(1 == main_~i~0#1); 4366#L12-2 assume !(10 == main_~i~0#1); 4365#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4364#L18-1 assume !!(main_~i~0#1 > 0); 4363#L12 assume !(1 == main_~i~0#1); 4362#L12-2 assume !(10 == main_~i~0#1); 4361#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4360#L18-1 assume !!(main_~i~0#1 > 0); 4359#L12 assume !(1 == main_~i~0#1); 4358#L12-2 assume !(10 == main_~i~0#1); 4357#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4356#L18-1 assume !!(main_~i~0#1 > 0); 4355#L12 assume !(1 == main_~i~0#1); 4354#L12-2 assume !(10 == main_~i~0#1); 4353#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4352#L18-1 assume !!(main_~i~0#1 > 0); 4351#L12 assume !(1 == main_~i~0#1); 4350#L12-2 assume !(10 == main_~i~0#1); 4349#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4348#L18-1 assume !!(main_~i~0#1 > 0); 4347#L12 assume !(1 == main_~i~0#1); 4346#L12-2 assume !(10 == main_~i~0#1); 4345#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4344#L18-1 assume !!(main_~i~0#1 > 0); 4343#L12 assume !(1 == main_~i~0#1); 4342#L12-2 assume !(10 == main_~i~0#1); 4341#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4340#L18-1 assume !!(main_~i~0#1 > 0); 4290#L12 assume !(1 == main_~i~0#1); 4294#L12-2 assume !(10 == main_~i~0#1); 4291#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4289#L18-1 assume !!(main_~i~0#1 > 0); 4288#L12 assume !(1 == main_~i~0#1); 4287#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 4278#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4279#L18-1 assume !!(main_~i~0#1 > 0); 4336#L12 assume !(1 == main_~i~0#1); 4338#L12-2 assume !(10 == main_~i~0#1); 4337#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4335#L18-1 assume !!(main_~i~0#1 > 0); 4334#L12 [2023-11-19 07:41:51,603 INFO L750 eck$LassoCheckResult]: Loop: 4334#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 4333#L12-2 assume !(10 == main_~i~0#1); 4332#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4331#L18-1 assume !!(main_~i~0#1 > 0); 4330#L12 assume !(1 == main_~i~0#1); 4329#L12-2 assume !(10 == main_~i~0#1); 4328#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4327#L18-1 assume !!(main_~i~0#1 > 0); 4326#L12 assume !(1 == main_~i~0#1); 4325#L12-2 assume !(10 == main_~i~0#1); 4324#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4323#L18-1 assume !!(main_~i~0#1 > 0); 4322#L12 assume !(1 == main_~i~0#1); 4321#L12-2 assume !(10 == main_~i~0#1); 4320#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4319#L18-1 assume !!(main_~i~0#1 > 0); 4318#L12 assume !(1 == main_~i~0#1); 4317#L12-2 assume !(10 == main_~i~0#1); 4316#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4315#L18-1 assume !!(main_~i~0#1 > 0); 4314#L12 assume !(1 == main_~i~0#1); 4313#L12-2 assume !(10 == main_~i~0#1); 4312#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4311#L18-1 assume !!(main_~i~0#1 > 0); 4310#L12 assume !(1 == main_~i~0#1); 4309#L12-2 assume !(10 == main_~i~0#1); 4308#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4307#L18-1 assume !!(main_~i~0#1 > 0); 4306#L12 assume !(1 == main_~i~0#1); 4305#L12-2 assume !(10 == main_~i~0#1); 4304#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4303#L18-1 assume !!(main_~i~0#1 > 0); 4302#L12 assume !(1 == main_~i~0#1); 4301#L12-2 assume !(10 == main_~i~0#1); 4299#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4295#L18-1 assume !!(main_~i~0#1 > 0); 4292#L12 assume !(1 == main_~i~0#1); 4293#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 4284#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4285#L18-1 assume !!(main_~i~0#1 > 0); 4336#L12 assume !(1 == main_~i~0#1); 4338#L12-2 assume !(10 == main_~i~0#1); 4337#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4335#L18-1 assume !!(main_~i~0#1 > 0); 4334#L12 [2023-11-19 07:41:51,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:51,604 INFO L85 PathProgramCache]: Analyzing trace with hash -733322943, now seen corresponding path program 3 times [2023-11-19 07:41:51,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:51,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317577652] [2023-11-19 07:41:51,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:51,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:51,628 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:51,691 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:51,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:51,692 INFO L85 PathProgramCache]: Analyzing trace with hash 491326234, now seen corresponding path program 2 times [2023-11-19 07:41:51,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:51,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339952653] [2023-11-19 07:41:51,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:51,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:51,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:51,710 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:51,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:51,721 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:51,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:51,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1133081510, now seen corresponding path program 4 times [2023-11-19 07:41:51,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:51,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774348983] [2023-11-19 07:41:51,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:51,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:51,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2023-11-19 07:41:51,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:51,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:51,856 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 562 proven. 3 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2023-11-19 07:41:51,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:51,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774348983] [2023-11-19 07:41:51,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774348983] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:41:51,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014411785] [2023-11-19 07:41:51,858 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-19 07:41:51,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:51,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:51,859 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:51,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-19 07:41:51,931 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-19 07:41:51,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:41:51,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:41:51,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:51,960 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 562 proven. 3 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2023-11-19 07:41:51,961 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:41:51,998 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 562 proven. 3 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2023-11-19 07:41:51,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014411785] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:41:51,999 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:41:51,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2023-11-19 07:41:51,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705143425] [2023-11-19 07:41:51,999 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:41:52,226 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:52,226 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:52,227 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:52,227 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:52,227 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:41:52,227 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:52,227 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:52,227 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:52,228 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration11_Loop [2023-11-19 07:41:52,228 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:52,228 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:52,229 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:52,233 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:52,237 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:52,244 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:52,301 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:52,301 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:41:52,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:52,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:52,303 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:52,306 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:52,306 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:52,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2023-11-19 07:41:52,336 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:41:52,336 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_14=1} Honda state: {v_rep~unnamed0~0~true_14=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:41:52,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:52,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:52,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:52,359 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:52,361 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:52,362 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:52,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2023-11-19 07:41:52,391 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:41:52,391 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_14=0} Honda state: {v_rep~unnamed0~0~false_14=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:41:52,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:52,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:52,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:52,415 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:52,417 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:52,417 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:52,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2023-11-19 07:41:52,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:52,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:52,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:52,479 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:52,482 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:41:52,482 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:52,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2023-11-19 07:41:52,515 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:41:52,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2023-11-19 07:41:52,533 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:52,533 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:52,533 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:52,533 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:52,533 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:41:52,533 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:52,533 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:52,533 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:52,533 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration11_Loop [2023-11-19 07:41:52,533 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:52,533 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:52,534 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:52,541 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:52,548 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:52,555 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:52,605 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:52,605 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:41:52,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:52,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:52,607 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:52,613 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:41:52,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:52,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:52,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:52,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:52,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2023-11-19 07:41:52,629 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:41:52,629 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:41:52,640 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:41:52,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2023-11-19 07:41:52,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:52,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:52,657 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:52,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2023-11-19 07:41:52,658 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:41:52,669 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:52,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:52,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:52,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:52,671 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:41:52,671 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:41:52,683 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:41:52,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2023-11-19 07:41:52,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:52,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:52,703 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:52,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2023-11-19 07:41:52,705 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:41:52,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:52,718 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:41:52,718 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:52,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:52,718 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:52,719 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:41:52,720 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:41:52,735 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:41:52,737 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:41:52,737 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:41:52,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:52,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:52,743 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:52,752 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:41:52,753 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:41:52,753 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:41:52,753 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 9 Supporting invariants [] [2023-11-19 07:41:52,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2023-11-19 07:41:52,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:52,775 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:41:52,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:52,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:52,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:52,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:41:52,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:53,046 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 11 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-19 07:41:53,047 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2023-11-19 07:41:53,047 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 142 states and 153 transitions. cyclomatic complexity: 17 Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:53,098 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 142 states and 153 transitions. cyclomatic complexity: 17. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 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 228 states and 242 transitions. Complement of second has 7 states. [2023-11-19 07:41:53,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-19 07:41:53,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:53,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2023-11-19 07:41:53,101 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 47 letters. Loop has 44 letters. [2023-11-19 07:41:53,102 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:53,102 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:41:53,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:53,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:53,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:53,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:53,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:53,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:41:53,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:53,344 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 11 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-19 07:41:53,346 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 5 loop predicates [2023-11-19 07:41:53,347 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 142 states and 153 transitions. cyclomatic complexity: 17 Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:53,419 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 142 states and 153 transitions. cyclomatic complexity: 17. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 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 238 states and 253 transitions. Complement of second has 11 states. [2023-11-19 07:41:53,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-19 07:41:53,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:53,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 14 transitions. [2023-11-19 07:41:53,421 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 14 transitions. Stem has 47 letters. Loop has 44 letters. [2023-11-19 07:41:53,421 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:53,421 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:41:53,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:53,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:53,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:53,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:53,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:41:53,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:53,664 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 11 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-19 07:41:53,665 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 5 loop predicates [2023-11-19 07:41:53,665 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 142 states and 153 transitions. cyclomatic complexity: 17 Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:53,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:53,751 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 142 states and 153 transitions. cyclomatic complexity: 17. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 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 268 states and 284 transitions. Complement of second has 9 states. [2023-11-19 07:41:53,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-19 07:41:53,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:53,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2023-11-19 07:41:53,753 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 47 letters. Loop has 44 letters. [2023-11-19 07:41:53,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:53,755 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:41:53,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:53,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:53,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:53,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:53,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:41:53,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:54,018 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 11 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-19 07:41:54,018 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 5 loop predicates [2023-11-19 07:41:54,019 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 142 states and 153 transitions. cyclomatic complexity: 17 Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:54,102 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 142 states and 153 transitions. cyclomatic complexity: 17. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 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 380 states and 401 transitions. Complement of second has 19 states. [2023-11-19 07:41:54,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-19 07:41:54,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:54,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2023-11-19 07:41:54,104 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 47 letters. Loop has 44 letters. [2023-11-19 07:41:54,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:54,106 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:41:54,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:54,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:54,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:54,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:54,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:41:54,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:54,364 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 11 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-19 07:41:54,365 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2023-11-19 07:41:54,366 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 142 states and 153 transitions. cyclomatic complexity: 17 Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:54,633 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 142 states and 153 transitions. cyclomatic complexity: 17 Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 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 1899 states and 2480 transitions. Complement of second has 166 states 20 powerset states146 rank states. The highest rank that occured is 5 [2023-11-19 07:41:54,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2023-11-19 07:41:54,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:54,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 70 transitions. [2023-11-19 07:41:54,634 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 70 transitions. Stem has 47 letters. Loop has 44 letters. [2023-11-19 07:41:54,640 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:54,640 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 70 transitions. Stem has 91 letters. Loop has 44 letters. [2023-11-19 07:41:54,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:54,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 70 transitions. Stem has 47 letters. Loop has 88 letters. [2023-11-19 07:41:54,658 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:54,659 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1899 states and 2480 transitions. [2023-11-19 07:41:54,678 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 96 [2023-11-19 07:41:54,688 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1899 states to 956 states and 1245 transitions. [2023-11-19 07:41:54,688 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 100 [2023-11-19 07:41:54,689 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 224 [2023-11-19 07:41:54,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 956 states and 1245 transitions. [2023-11-19 07:41:54,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:41:54,689 INFO L218 hiAutomatonCegarLoop]: Abstraction has 956 states and 1245 transitions. [2023-11-19 07:41:54,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states and 1245 transitions. [2023-11-19 07:41:54,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 564. [2023-11-19 07:41:54,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 564 states have (on average 1.3953900709219857) internal successors, (787), 563 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:54,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 787 transitions. [2023-11-19 07:41:54,706 INFO L240 hiAutomatonCegarLoop]: Abstraction has 564 states and 787 transitions. [2023-11-19 07:41:54,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:54,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:41:54,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:41:54,707 INFO L87 Difference]: Start difference. First operand 564 states and 787 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:54,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:54,765 INFO L93 Difference]: Finished difference Result 692 states and 978 transitions. [2023-11-19 07:41:54,766 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 692 states and 978 transitions. [2023-11-19 07:41:54,773 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 98 [2023-11-19 07:41:54,779 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 692 states to 675 states and 954 transitions. [2023-11-19 07:41:54,780 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2023-11-19 07:41:54,780 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2023-11-19 07:41:54,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 675 states and 954 transitions. [2023-11-19 07:41:54,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:41:54,781 INFO L218 hiAutomatonCegarLoop]: Abstraction has 675 states and 954 transitions. [2023-11-19 07:41:54,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states and 954 transitions. [2023-11-19 07:41:54,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 634. [2023-11-19 07:41:54,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 634 states have (on average 1.411671924290221) internal successors, (895), 633 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:54,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 895 transitions. [2023-11-19 07:41:54,796 INFO L240 hiAutomatonCegarLoop]: Abstraction has 634 states and 895 transitions. [2023-11-19 07:41:54,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:41:54,797 INFO L428 stractBuchiCegarLoop]: Abstraction has 634 states and 895 transitions. [2023-11-19 07:41:54,798 INFO L335 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2023-11-19 07:41:54,798 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 634 states and 895 transitions. [2023-11-19 07:41:54,803 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 90 [2023-11-19 07:41:54,804 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:41:54,804 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:41:54,806 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [16, 14, 14, 9, 6, 1, 1, 1, 1] [2023-11-19 07:41:54,806 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [15, 14, 14, 9, 6, 1, 1] [2023-11-19 07:41:54,806 INFO L748 eck$LassoCheckResult]: Stem: 10858#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 10859#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; 10863#L18-1 assume !!(main_~i~0#1 > 0); 11194#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 11045#L12-2 assume !(10 == main_~i~0#1); 11186#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11185#L18-1 assume !!(main_~i~0#1 > 0); 11183#L12 assume !(1 == main_~i~0#1); 11181#L12-2 assume !(10 == main_~i~0#1); 11179#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11177#L18-1 assume !!(main_~i~0#1 > 0); 11175#L12 assume !(1 == main_~i~0#1); 11173#L12-2 assume !(10 == main_~i~0#1); 11171#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11169#L18-1 assume !!(main_~i~0#1 > 0); 11167#L12 assume !(1 == main_~i~0#1); 11165#L12-2 assume !(10 == main_~i~0#1); 11163#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11161#L18-1 assume !!(main_~i~0#1 > 0); 11159#L12 assume !(1 == main_~i~0#1); 11157#L12-2 assume !(10 == main_~i~0#1); 11155#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11153#L18-1 assume !!(main_~i~0#1 > 0); 11151#L12 assume !(1 == main_~i~0#1); 11149#L12-2 assume !(10 == main_~i~0#1); 11147#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11145#L18-1 assume !!(main_~i~0#1 > 0); 11143#L12 assume !(1 == main_~i~0#1); 11141#L12-2 assume !(10 == main_~i~0#1); 11139#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11137#L18-1 assume !!(main_~i~0#1 > 0); 11135#L12 assume !(1 == main_~i~0#1); 11133#L12-2 assume !(10 == main_~i~0#1); 11131#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11127#L18-1 assume !!(main_~i~0#1 > 0); 11125#L12 assume !(1 == main_~i~0#1); 11123#L12-2 assume !(10 == main_~i~0#1); 11119#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11120#L18-1 assume !!(main_~i~0#1 > 0); 11128#L12 assume !(1 == main_~i~0#1); 11111#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 11070#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11109#L18-1 assume !!(main_~i~0#1 > 0); 11108#L12 assume !(1 == main_~i~0#1); 11107#L12-2 assume !(10 == main_~i~0#1); 11105#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11104#L18-1 assume !!(main_~i~0#1 > 0); 11103#L12 assume !(1 == main_~i~0#1); 11102#L12-2 assume !(10 == main_~i~0#1); 11100#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11099#L18-1 assume !!(main_~i~0#1 > 0); 11098#L12 assume !(1 == main_~i~0#1); 11097#L12-2 assume !(10 == main_~i~0#1); 11095#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11094#L18-1 assume !!(main_~i~0#1 > 0); 11093#L12 assume !(1 == main_~i~0#1); 11092#L12-2 assume !(10 == main_~i~0#1); 11090#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11089#L18-1 assume !!(main_~i~0#1 > 0); 11042#L12 assume !(1 == main_~i~0#1); 11069#L12-2 assume !(10 == main_~i~0#1); 11046#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11047#L18-1 assume !!(main_~i~0#1 > 0); 11190#L12 [2023-11-19 07:41:54,807 INFO L750 eck$LassoCheckResult]: Loop: 11190#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 11187#L12-2 assume !(10 == main_~i~0#1); 10867#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 10868#L18-1 assume !!(main_~i~0#1 > 0); 10855#L12 assume !(1 == main_~i~0#1); 10865#L12-2 assume !(10 == main_~i~0#1); 11481#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11479#L18-1 assume !!(main_~i~0#1 > 0); 11477#L12 assume !(1 == main_~i~0#1); 11475#L12-2 assume !(10 == main_~i~0#1); 11473#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11471#L18-1 assume !!(main_~i~0#1 > 0); 11469#L12 assume !(1 == main_~i~0#1); 11467#L12-2 assume !(10 == main_~i~0#1); 11465#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11463#L18-1 assume !!(main_~i~0#1 > 0); 11461#L12 assume !(1 == main_~i~0#1); 11459#L12-2 assume !(10 == main_~i~0#1); 11457#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11455#L18-1 assume !!(main_~i~0#1 > 0); 11453#L12 assume !(1 == main_~i~0#1); 11451#L12-2 assume !(10 == main_~i~0#1); 11449#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11447#L18-1 assume !!(main_~i~0#1 > 0); 11445#L12 assume !(1 == main_~i~0#1); 11443#L12-2 assume !(10 == main_~i~0#1); 11441#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11439#L18-1 assume !!(main_~i~0#1 > 0); 11437#L12 assume !(1 == main_~i~0#1); 11435#L12-2 assume !(10 == main_~i~0#1); 11433#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11431#L18-1 assume !!(main_~i~0#1 > 0); 11430#L12 assume !(1 == main_~i~0#1); 11429#L12-2 assume !(10 == main_~i~0#1); 11425#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11426#L18-1 assume !!(main_~i~0#1 > 0); 11418#L12 assume !(1 == main_~i~0#1); 11419#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 11292#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11416#L18-1 assume !!(main_~i~0#1 > 0); 11415#L12 assume !(1 == main_~i~0#1); 11414#L12-2 assume !(10 == main_~i~0#1); 11413#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11412#L18-1 assume !!(main_~i~0#1 > 0); 11411#L12 assume !(1 == main_~i~0#1); 11410#L12-2 assume !(10 == main_~i~0#1); 11409#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11408#L18-1 assume !!(main_~i~0#1 > 0); 11407#L12 assume !(1 == main_~i~0#1); 11368#L12-2 assume !(10 == main_~i~0#1); 11367#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11364#L18-1 assume !!(main_~i~0#1 > 0); 11365#L12 assume !(1 == main_~i~0#1); 11372#L12-2 assume !(10 == main_~i~0#1); 11370#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11371#L18-1 assume !!(main_~i~0#1 > 0); 11356#L12 assume !(1 == main_~i~0#1); 11352#L12-2 assume !(10 == main_~i~0#1); 11293#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11424#L18-1 assume !!(main_~i~0#1 > 0); 11190#L12 [2023-11-19 07:41:54,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:54,808 INFO L85 PathProgramCache]: Analyzing trace with hash 912728085, now seen corresponding path program 5 times [2023-11-19 07:41:54,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:54,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665067148] [2023-11-19 07:41:54,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:54,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:54,821 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:54,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:54,831 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:54,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:54,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1190197230, now seen corresponding path program 3 times [2023-11-19 07:41:54,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:54,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135388768] [2023-11-19 07:41:54,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:54,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:54,854 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:54,864 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:54,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:54,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1444454914, now seen corresponding path program 6 times [2023-11-19 07:41:54,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:54,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350666508] [2023-11-19 07:41:54,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:54,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:54,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:55,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 1138 proven. 55 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2023-11-19 07:41:55,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:55,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350666508] [2023-11-19 07:41:55,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350666508] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:41:55,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8978235] [2023-11-19 07:41:55,107 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-19 07:41:55,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:55,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:55,109 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:55,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2023-11-19 07:41:55,184 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 22 check-sat command(s) [2023-11-19 07:41:55,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:41:55,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:41:55,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:55,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 1138 proven. 55 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2023-11-19 07:41:55,242 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:41:55,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 1138 proven. 55 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2023-11-19 07:41:55,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8978235] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:41:55,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:41:55,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2023-11-19 07:41:55,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022085573] [2023-11-19 07:41:55,357 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:41:55,659 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:55,659 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:55,659 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:55,659 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:55,659 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:41:55,659 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:55,660 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:55,660 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:55,660 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration12_Loop [2023-11-19 07:41:55,660 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:55,660 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:55,661 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:55,664 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:55,667 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:55,672 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:55,710 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:55,711 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:41:55,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:55,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:55,712 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:55,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2023-11-19 07:41:55,722 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:55,723 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:55,740 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:41:55,740 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_16=1} Honda state: {v_rep~unnamed0~0~true_16=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:41:55,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2023-11-19 07:41:55,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:55,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:55,757 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:55,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2023-11-19 07:41:55,759 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:55,759 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:55,771 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:41:55,771 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: [] [2023-11-19 07:41:55,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2023-11-19 07:41:55,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:55,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:55,784 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:55,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2023-11-19 07:41:55,785 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:55,785 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:55,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:55,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:55,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:55,811 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:55,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2023-11-19 07:41:55,812 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:41:55,812 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:55,825 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:41:55,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:55,837 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:55,837 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:55,837 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:55,838 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:55,838 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:41:55,838 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:55,838 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:55,838 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:55,838 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration12_Loop [2023-11-19 07:41:55,838 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:55,838 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:55,839 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:55,846 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:55,849 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:55,856 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:55,902 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:55,903 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:41:55,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:55,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:55,917 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:55,920 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:41:55,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:55,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:55,933 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:55,933 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:55,934 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:41:55,935 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:41:55,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2023-11-19 07:41:55,963 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:41:55,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:55,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:55,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:55,983 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:55,988 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:41:56,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:56,000 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:41:56,000 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:56,000 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:56,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:56,001 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:41:56,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:41:56,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2023-11-19 07:41:56,015 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:41:56,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:56,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:56,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:56,035 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:56,037 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:41:56,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:56,050 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:41:56,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:56,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:56,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:56,051 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:41:56,051 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:41:56,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2023-11-19 07:41:56,067 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:41:56,070 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:41:56,070 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:41:56,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:56,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:56,073 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:56,074 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:41:56,074 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:41:56,074 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:41:56,075 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 5 Supporting invariants [] [2023-11-19 07:41:56,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2023-11-19 07:41:56,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:56,094 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:41:56,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:56,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:56,130 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:56,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:56,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:56,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 07:41:56,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:56,502 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 59 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-19 07:41:56,503 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2023-11-19 07:41:56,503 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 634 states and 895 transitions. cyclomatic complexity: 279 Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:56,553 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 634 states and 895 transitions. cyclomatic complexity: 279. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 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 1120 states and 1472 transitions. Complement of second has 7 states. [2023-11-19 07:41:56,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-19 07:41:56,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:56,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2023-11-19 07:41:56,555 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 63 letters. Loop has 60 letters. [2023-11-19 07:41:56,555 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:56,555 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:41:56,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:56,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:56,584 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:56,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:56,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:56,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 07:41:56,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:56,907 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 59 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-19 07:41:56,908 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 9 loop predicates [2023-11-19 07:41:56,908 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 634 states and 895 transitions. cyclomatic complexity: 279 Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:56,976 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 634 states and 895 transitions. cyclomatic complexity: 279. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 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 1179 states and 1565 transitions. Complement of second has 11 states. [2023-11-19 07:41:56,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-19 07:41:56,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:56,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 14 transitions. [2023-11-19 07:41:56,978 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 14 transitions. Stem has 63 letters. Loop has 60 letters. [2023-11-19 07:41:56,978 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:56,978 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:41:56,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:57,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:57,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:57,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:57,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:57,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:57,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 07:41:57,146 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:57,421 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 59 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-19 07:41:57,421 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2023-11-19 07:41:57,422 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 634 states and 895 transitions. cyclomatic complexity: 279 Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:57,473 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 634 states and 895 transitions. cyclomatic complexity: 279. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 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 1301 states and 1787 transitions. Complement of second has 9 states. [2023-11-19 07:41:57,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-19 07:41:57,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:57,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2023-11-19 07:41:57,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 63 letters. Loop has 60 letters. [2023-11-19 07:41:57,477 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:57,477 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:41:57,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:57,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:57,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:57,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 07:41:57,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:57,817 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 59 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-19 07:41:57,818 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 9 loop predicates [2023-11-19 07:41:57,818 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 634 states and 895 transitions. cyclomatic complexity: 279 Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:57,905 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 634 states and 895 transitions. cyclomatic complexity: 279. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 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 1866 states and 2535 transitions. Complement of second has 19 states. [2023-11-19 07:41:57,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-19 07:41:57,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:57,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2023-11-19 07:41:57,907 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 63 letters. Loop has 60 letters. [2023-11-19 07:41:57,908 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:57,909 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:41:57,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:57,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:57,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:58,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 07:41:58,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:58,284 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 59 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-19 07:41:58,285 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2023-11-19 07:41:58,286 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 634 states and 895 transitions. cyclomatic complexity: 279 Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:59,061 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 634 states and 895 transitions. cyclomatic complexity: 279 Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 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 11129 states and 19734 transitions. Complement of second has 282 states 36 powerset states246 rank states. The highest rank that occured is 5 [2023-11-19 07:41:59,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 1 stem states 10 non-accepting loop states 1 accepting loop states [2023-11-19 07:41:59,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:59,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 110 transitions. [2023-11-19 07:41:59,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 110 transitions. Stem has 63 letters. Loop has 60 letters. [2023-11-19 07:41:59,074 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:59,074 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 110 transitions. Stem has 123 letters. Loop has 60 letters. [2023-11-19 07:41:59,086 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:59,086 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 110 transitions. Stem has 63 letters. Loop has 120 letters. [2023-11-19 07:41:59,114 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:59,115 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11129 states and 19734 transitions. [2023-11-19 07:41:59,285 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 248 [2023-11-19 07:41:59,336 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11129 states to 4882 states and 8741 transitions. [2023-11-19 07:41:59,337 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 330 [2023-11-19 07:41:59,339 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 575 [2023-11-19 07:41:59,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4882 states and 8741 transitions. [2023-11-19 07:41:59,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:41:59,340 INFO L218 hiAutomatonCegarLoop]: Abstraction has 4882 states and 8741 transitions. [2023-11-19 07:41:59,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4882 states and 8741 transitions. [2023-11-19 07:41:59,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4882 to 3014. [2023-11-19 07:41:59,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3014 states, 3014 states have (on average 1.813868613138686) internal successors, (5467), 3013 states have internal predecessors, (5467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:59,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3014 states to 3014 states and 5467 transitions. [2023-11-19 07:41:59,441 INFO L240 hiAutomatonCegarLoop]: Abstraction has 3014 states and 5467 transitions. [2023-11-19 07:41:59,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:59,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:41:59,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:41:59,442 INFO L87 Difference]: Start difference. First operand 3014 states and 5467 transitions. Second operand has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:59,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:59,534 INFO L93 Difference]: Finished difference Result 3401 states and 6312 transitions. [2023-11-19 07:41:59,534 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3401 states and 6312 transitions. [2023-11-19 07:41:59,575 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 168 [2023-11-19 07:41:59,610 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3401 states to 3369 states and 6221 transitions. [2023-11-19 07:41:59,610 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 238 [2023-11-19 07:41:59,611 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 238 [2023-11-19 07:41:59,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3369 states and 6221 transitions. [2023-11-19 07:41:59,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:41:59,612 INFO L218 hiAutomatonCegarLoop]: Abstraction has 3369 states and 6221 transitions. [2023-11-19 07:41:59,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3369 states and 6221 transitions. [2023-11-19 07:41:59,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3369 to 3222. [2023-11-19 07:41:59,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3222 states, 3222 states have (on average 1.8395406579764122) internal successors, (5927), 3221 states have internal predecessors, (5927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:59,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3222 states to 3222 states and 5927 transitions. [2023-11-19 07:41:59,702 INFO L240 hiAutomatonCegarLoop]: Abstraction has 3222 states and 5927 transitions. [2023-11-19 07:41:59,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:41:59,703 INFO L428 stractBuchiCegarLoop]: Abstraction has 3222 states and 5927 transitions. [2023-11-19 07:41:59,703 INFO L335 stractBuchiCegarLoop]: ======== Iteration 13 ============ [2023-11-19 07:41:59,703 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3222 states and 5927 transitions. [2023-11-19 07:41:59,723 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 152 [2023-11-19 07:41:59,723 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:41:59,723 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:41:59,725 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [19, 17, 17, 9, 9, 1, 1, 1, 1] [2023-11-19 07:41:59,725 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [18, 17, 17, 9, 9, 1, 1] [2023-11-19 07:41:59,726 INFO L748 eck$LassoCheckResult]: Stem: 37489#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 37490#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; 37494#L18-1 assume !!(main_~i~0#1 > 0); 37746#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 39008#L12-2 assume !(10 == main_~i~0#1); 39006#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 39004#L18-1 assume !!(main_~i~0#1 > 0); 39002#L12 assume !(1 == main_~i~0#1); 39000#L12-2 assume !(10 == main_~i~0#1); 38998#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 38996#L18-1 assume !!(main_~i~0#1 > 0); 38994#L12 assume !(1 == main_~i~0#1); 38992#L12-2 assume !(10 == main_~i~0#1); 38990#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 38988#L18-1 assume !!(main_~i~0#1 > 0); 38986#L12 assume !(1 == main_~i~0#1); 38984#L12-2 assume !(10 == main_~i~0#1); 38982#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 38980#L18-1 assume !!(main_~i~0#1 > 0); 38978#L12 assume !(1 == main_~i~0#1); 38976#L12-2 assume !(10 == main_~i~0#1); 38974#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 38972#L18-1 assume !!(main_~i~0#1 > 0); 38970#L12 assume !(1 == main_~i~0#1); 38968#L12-2 assume !(10 == main_~i~0#1); 38966#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 38964#L18-1 assume !!(main_~i~0#1 > 0); 38962#L12 assume !(1 == main_~i~0#1); 38960#L12-2 assume !(10 == main_~i~0#1); 38958#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 38956#L18-1 assume !!(main_~i~0#1 > 0); 38954#L12 assume !(1 == main_~i~0#1); 38952#L12-2 assume !(10 == main_~i~0#1); 38950#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 38948#L18-1 assume !!(main_~i~0#1 > 0); 38941#L12 assume !(1 == main_~i~0#1); 38944#L12-2 assume !(10 == main_~i~0#1); 38945#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 38939#L18-1 assume !!(main_~i~0#1 > 0); 38940#L12 assume !(1 == main_~i~0#1); 38717#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 38331#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 38693#L18-1 assume !!(main_~i~0#1 > 0); 38687#L12 assume !(1 == main_~i~0#1); 38685#L12-2 assume !(10 == main_~i~0#1); 38682#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 38678#L18-1 assume !!(main_~i~0#1 > 0); 38674#L12 assume !(1 == main_~i~0#1); 38670#L12-2 assume !(10 == main_~i~0#1); 38667#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 38662#L18-1 assume !!(main_~i~0#1 > 0); 38663#L12 assume !(1 == main_~i~0#1); 38655#L12-2 assume !(10 == main_~i~0#1); 38650#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 38645#L18-1 assume !!(main_~i~0#1 > 0); 38646#L12 assume !(1 == main_~i~0#1); 38631#L12-2 assume !(10 == main_~i~0#1); 38632#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 38695#L18-1 assume !!(main_~i~0#1 > 0); 38694#L12 assume !(1 == main_~i~0#1); 38616#L12-2 assume !(10 == main_~i~0#1); 38615#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 38707#L18-1 assume !!(main_~i~0#1 > 0); 38604#L12 assume !(1 == main_~i~0#1); 38599#L12-2 assume !(10 == main_~i~0#1); 38600#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 38714#L18-1 assume !!(main_~i~0#1 > 0); 38709#L12 assume !(1 == main_~i~0#1); 38586#L12-2 assume !(10 == main_~i~0#1); 38587#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 38901#L18-1 assume !!(main_~i~0#1 > 0); 38321#L12 assume !(1 == main_~i~0#1); 39857#L12-2 assume !(10 == main_~i~0#1); 39855#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 40135#L18-1 assume !!(main_~i~0#1 > 0); 37502#L12 [2023-11-19 07:41:59,726 INFO L750 eck$LassoCheckResult]: Loop: 37502#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 37480#L12-2 assume !(10 == main_~i~0#1); 37481#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40643#L18-1 assume !!(main_~i~0#1 > 0); 37495#L12 assume !(1 == main_~i~0#1); 37496#L12-2 assume !(10 == main_~i~0#1); 40675#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40674#L18-1 assume !!(main_~i~0#1 > 0); 40673#L12 assume !(1 == main_~i~0#1); 40672#L12-2 assume !(10 == main_~i~0#1); 40671#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40670#L18-1 assume !!(main_~i~0#1 > 0); 40669#L12 assume !(1 == main_~i~0#1); 40668#L12-2 assume !(10 == main_~i~0#1); 40667#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40666#L18-1 assume !!(main_~i~0#1 > 0); 40665#L12 assume !(1 == main_~i~0#1); 40664#L12-2 assume !(10 == main_~i~0#1); 40663#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40662#L18-1 assume !!(main_~i~0#1 > 0); 40661#L12 assume !(1 == main_~i~0#1); 40660#L12-2 assume !(10 == main_~i~0#1); 40659#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40658#L18-1 assume !!(main_~i~0#1 > 0); 40657#L12 assume !(1 == main_~i~0#1); 40656#L12-2 assume !(10 == main_~i~0#1); 40655#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40654#L18-1 assume !!(main_~i~0#1 > 0); 40653#L12 assume !(1 == main_~i~0#1); 40652#L12-2 assume !(10 == main_~i~0#1); 40651#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40650#L18-1 assume !!(main_~i~0#1 > 0); 40649#L12 assume !(1 == main_~i~0#1); 40648#L12-2 assume !(10 == main_~i~0#1); 40641#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40642#L18-1 assume !!(main_~i~0#1 > 0); 40461#L12 assume !(1 == main_~i~0#1); 40462#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 39577#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 40435#L18-1 assume !!(main_~i~0#1 > 0); 40432#L12 assume !(1 == main_~i~0#1); 40429#L12-2 assume !(10 == main_~i~0#1); 40426#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 40425#L18-1 assume !!(main_~i~0#1 > 0); 40424#L12 assume !(1 == main_~i~0#1); 40422#L12-2 assume !(10 == main_~i~0#1); 40419#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 40415#L18-1 assume !!(main_~i~0#1 > 0); 40416#L12 assume !(1 == main_~i~0#1); 40405#L12-2 assume !(10 == main_~i~0#1); 40406#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 40397#L18-1 assume !!(main_~i~0#1 > 0); 40398#L12 assume !(1 == main_~i~0#1); 40384#L12-2 assume !(10 == main_~i~0#1); 40380#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 40373#L18-1 assume !!(main_~i~0#1 > 0); 40374#L12 assume !(1 == main_~i~0#1); 40362#L12-2 assume !(10 == main_~i~0#1); 40358#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 40359#L18-1 assume !!(main_~i~0#1 > 0); 40353#L12 assume !(1 == main_~i~0#1); 40348#L12-2 assume !(10 == main_~i~0#1); 40349#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 40455#L18-1 assume !!(main_~i~0#1 > 0); 40454#L12 assume !(1 == main_~i~0#1); 40336#L12-2 assume !(10 == main_~i~0#1); 39625#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 39626#L18-1 assume !!(main_~i~0#1 > 0); 40497#L12 assume !(1 == main_~i~0#1); 39582#L12-2 assume !(10 == main_~i~0#1); 39314#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 39315#L18-1 assume !!(main_~i~0#1 > 0); 37502#L12 [2023-11-19 07:41:59,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:59,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1568126196, now seen corresponding path program 7 times [2023-11-19 07:41:59,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:59,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890206090] [2023-11-19 07:41:59,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:59,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:59,737 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:59,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:59,747 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:59,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:59,748 INFO L85 PathProgramCache]: Analyzing trace with hash 537366349, now seen corresponding path program 4 times [2023-11-19 07:41:59,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:59,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754784672] [2023-11-19 07:41:59,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:59,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:59,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:59,757 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:59,765 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:59,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:59,766 INFO L85 PathProgramCache]: Analyzing trace with hash 758614336, now seen corresponding path program 8 times [2023-11-19 07:41:59,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:59,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451136486] [2023-11-19 07:41:59,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:59,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:59,783 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:59,798 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:42:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:42:00,703 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:42:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:42:00,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:42:00 BoogieIcfgContainer [2023-11-19 07:42:00,795 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:42:00,796 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:42:00,796 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:42:00,796 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:42:00,797 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:43" (3/4) ... [2023-11-19 07:42:00,799 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-19 07:42:00,900 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:42:00,900 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:42:00,901 INFO L158 Benchmark]: Toolchain (without parser) took 17991.38ms. Allocated memory was 174.1MB in the beginning and 337.6MB in the end (delta: 163.6MB). Free memory was 144.0MB in the beginning and 231.0MB in the end (delta: -87.0MB). Peak memory consumption was 78.3MB. Max. memory is 16.1GB. [2023-11-19 07:42:00,901 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 121.6MB. Free memory was 81.6MB in the beginning and 81.4MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:42:00,901 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.77ms. Allocated memory is still 174.1MB. Free memory was 144.0MB in the beginning and 134.7MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:42:00,902 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.23ms. Allocated memory is still 174.1MB. Free memory was 134.7MB in the beginning and 133.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:42:00,902 INFO L158 Benchmark]: Boogie Preprocessor took 19.81ms. Allocated memory is still 174.1MB. Free memory was 133.1MB in the beginning and 132.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:42:00,903 INFO L158 Benchmark]: RCFGBuilder took 278.72ms. Allocated memory is still 174.1MB. Free memory was 132.0MB in the beginning and 123.7MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 07:42:00,903 INFO L158 Benchmark]: BuchiAutomizer took 17333.59ms. Allocated memory was 174.1MB in the beginning and 337.6MB in the end (delta: 163.6MB). Free memory was 123.7MB in the beginning and 236.2MB in the end (delta: -112.5MB). Peak memory consumption was 53.1MB. Max. memory is 16.1GB. [2023-11-19 07:42:00,904 INFO L158 Benchmark]: Witness Printer took 104.09ms. Allocated memory is still 337.6MB. Free memory was 236.2MB in the beginning and 231.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:42:00,906 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 121.6MB. Free memory was 81.6MB in the beginning and 81.4MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 217.77ms. Allocated memory is still 174.1MB. Free memory was 144.0MB in the beginning and 134.7MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.23ms. Allocated memory is still 174.1MB. Free memory was 134.7MB in the beginning and 133.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.81ms. Allocated memory is still 174.1MB. Free memory was 133.1MB in the beginning and 132.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 278.72ms. Allocated memory is still 174.1MB. Free memory was 132.0MB in the beginning and 123.7MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 17333.59ms. Allocated memory was 174.1MB in the beginning and 337.6MB in the end (delta: 163.6MB). Free memory was 123.7MB in the beginning and 236.2MB in the end (delta: -112.5MB). Peak memory consumption was 53.1MB. Max. memory is 16.1GB. * Witness Printer took 104.09ms. Allocated memory is still 337.6MB. Free memory was 236.2MB in the beginning and 231.0MB in the end (delta: 5.2MB). 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 17 terminating modules (9 trivial, 5 deterministic, 3 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function i 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) + 21) and consists of 5 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function i and consists of 3 locations. One nondeterministic module has affine ranking function i and consists of 3 locations. One nondeterministic module has affine ranking function ((-2 * i) + 9) and consists of 9 locations. One nondeterministic module has affine ranking function ((-2 * i) + 5) and consists of 13 locations. 9 modules have a trivial ranking function, the largest among these consists of 11 locations. The remainder module has 3222 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 17.2s and 13 iterations. TraceHistogramMax:19. Analysis of lassos took 9.7s. Construction of modules took 0.7s. Büchi inclusion checks took 6.1s. Highest rank in rank-based complementation 5. Minimization of det autom 2. Minimization of nondet autom 15. Automata minimization 0.4s AutomataMinimizationTime, 17 MinimizatonAttempts, 2653 StatesRemovedByMinimization, 14 NontrivialMinimizations. Non-live state removal took 0.4s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [5, 0, 1, 0, 2]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 570/640 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 426 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 393 mSDsluCounter, 230 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 132 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 742 IncrementalHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 132 mSolverCounterUnsat, 203 mSDtfsCounter, 742 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT2 conc0 concLT2 SILN0 SILU0 SILI2 SILT3 lasso1 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax177 hnf100 lsp43 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq187 hnf93 smp89 dnf132 smp95 tf108 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 150ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 18 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 12]: 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 i > 0 VAL [i=1, up=0] [L12] COND TRUE i == 1 [L13] up = 1 VAL [i=1, up=1] [L15] COND FALSE !(i == 10) VAL [i=1, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=2, up=1] [L11] COND TRUE i > 0 VAL [i=2, up=1] [L12] COND FALSE !(i == 1) VAL [i=2, up=1] [L15] COND FALSE !(i == 10) VAL [i=2, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=3, up=1] [L11] COND TRUE i > 0 VAL [i=3, up=1] [L12] COND FALSE !(i == 1) VAL [i=3, up=1] [L15] COND FALSE !(i == 10) VAL [i=3, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=4, up=1] [L11] COND TRUE i > 0 VAL [i=4, up=1] [L12] COND FALSE !(i == 1) VAL [i=4, up=1] [L15] COND FALSE !(i == 10) VAL [i=4, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=5, up=1] [L11] COND TRUE i > 0 VAL [i=5, up=1] [L12] COND FALSE !(i == 1) VAL [i=5, up=1] [L15] COND FALSE !(i == 10) VAL [i=5, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=6, up=1] [L11] COND TRUE i > 0 VAL [i=6, up=1] [L12] COND FALSE !(i == 1) VAL [i=6, up=1] [L15] COND FALSE !(i == 10) VAL [i=6, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=7, up=1] [L11] COND TRUE i > 0 VAL [i=7, up=1] [L12] COND FALSE !(i == 1) VAL [i=7, up=1] [L15] COND FALSE !(i == 10) VAL [i=7, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=8, up=1] [L11] COND TRUE i > 0 VAL [i=8, up=1] [L12] COND FALSE !(i == 1) VAL [i=8, up=1] [L15] COND FALSE !(i == 10) VAL [i=8, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=9, up=1] [L11] COND TRUE i > 0 VAL [i=9, up=1] [L12] COND FALSE !(i == 1) VAL [i=9, up=1] [L15] COND FALSE !(i == 10) VAL [i=9, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=10, up=1] [L11] COND TRUE i > 0 VAL [i=10, up=1] [L12] COND FALSE !(i == 1) VAL [i=10, up=1] [L15] COND TRUE i == 10 [L16] up = 0 VAL [i=10, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=9, up=0] [L11] COND TRUE i > 0 VAL [i=9, up=0] [L12] COND FALSE !(i == 1) VAL [i=9, up=0] [L15] COND FALSE !(i == 10) VAL [i=9, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=8, up=0] [L11] COND TRUE i > 0 VAL [i=8, up=0] [L12] COND FALSE !(i == 1) VAL [i=8, up=0] [L15] COND FALSE !(i == 10) VAL [i=8, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=7, up=0] [L11] COND TRUE i > 0 VAL [i=7, up=0] [L12] COND FALSE !(i == 1) VAL [i=7, up=0] [L15] COND FALSE !(i == 10) VAL [i=7, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=6, up=0] [L11] COND TRUE i > 0 VAL [i=6, up=0] [L12] COND FALSE !(i == 1) VAL [i=6, up=0] [L15] COND FALSE !(i == 10) VAL [i=6, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=5, up=0] [L11] COND TRUE i > 0 VAL [i=5, up=0] [L12] COND FALSE !(i == 1) VAL [i=5, up=0] [L15] COND FALSE !(i == 10) VAL [i=5, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=4, up=0] [L11] COND TRUE i > 0 VAL [i=4, up=0] [L12] COND FALSE !(i == 1) VAL [i=4, up=0] [L15] COND FALSE !(i == 10) VAL [i=4, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=3, up=0] [L11] COND TRUE i > 0 VAL [i=3, up=0] [L12] COND FALSE !(i == 1) VAL [i=3, up=0] [L15] COND FALSE !(i == 10) VAL [i=3, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=2, up=0] [L11] COND TRUE i > 0 VAL [i=2, up=0] [L12] COND FALSE !(i == 1) VAL [i=2, up=0] [L15] COND FALSE !(i == 10) VAL [i=2, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=1, up=0] [L11] COND TRUE i > 0 VAL [i=1, up=0] Loop: [L12] COND TRUE i == 1 [L13] up = 1 [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND TRUE i == 10 [L16] up = 0 [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 12]: 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 i > 0 VAL [i=1, up=0] [L12] COND TRUE i == 1 [L13] up = 1 VAL [i=1, up=1] [L15] COND FALSE !(i == 10) VAL [i=1, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=2, up=1] [L11] COND TRUE i > 0 VAL [i=2, up=1] [L12] COND FALSE !(i == 1) VAL [i=2, up=1] [L15] COND FALSE !(i == 10) VAL [i=2, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=3, up=1] [L11] COND TRUE i > 0 VAL [i=3, up=1] [L12] COND FALSE !(i == 1) VAL [i=3, up=1] [L15] COND FALSE !(i == 10) VAL [i=3, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=4, up=1] [L11] COND TRUE i > 0 VAL [i=4, up=1] [L12] COND FALSE !(i == 1) VAL [i=4, up=1] [L15] COND FALSE !(i == 10) VAL [i=4, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=5, up=1] [L11] COND TRUE i > 0 VAL [i=5, up=1] [L12] COND FALSE !(i == 1) VAL [i=5, up=1] [L15] COND FALSE !(i == 10) VAL [i=5, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=6, up=1] [L11] COND TRUE i > 0 VAL [i=6, up=1] [L12] COND FALSE !(i == 1) VAL [i=6, up=1] [L15] COND FALSE !(i == 10) VAL [i=6, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=7, up=1] [L11] COND TRUE i > 0 VAL [i=7, up=1] [L12] COND FALSE !(i == 1) VAL [i=7, up=1] [L15] COND FALSE !(i == 10) VAL [i=7, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=8, up=1] [L11] COND TRUE i > 0 VAL [i=8, up=1] [L12] COND FALSE !(i == 1) VAL [i=8, up=1] [L15] COND FALSE !(i == 10) VAL [i=8, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=9, up=1] [L11] COND TRUE i > 0 VAL [i=9, up=1] [L12] COND FALSE !(i == 1) VAL [i=9, up=1] [L15] COND FALSE !(i == 10) VAL [i=9, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=10, up=1] [L11] COND TRUE i > 0 VAL [i=10, up=1] [L12] COND FALSE !(i == 1) VAL [i=10, up=1] [L15] COND TRUE i == 10 [L16] up = 0 VAL [i=10, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=9, up=0] [L11] COND TRUE i > 0 VAL [i=9, up=0] [L12] COND FALSE !(i == 1) VAL [i=9, up=0] [L15] COND FALSE !(i == 10) VAL [i=9, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=8, up=0] [L11] COND TRUE i > 0 VAL [i=8, up=0] [L12] COND FALSE !(i == 1) VAL [i=8, up=0] [L15] COND FALSE !(i == 10) VAL [i=8, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=7, up=0] [L11] COND TRUE i > 0 VAL [i=7, up=0] [L12] COND FALSE !(i == 1) VAL [i=7, up=0] [L15] COND FALSE !(i == 10) VAL [i=7, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=6, up=0] [L11] COND TRUE i > 0 VAL [i=6, up=0] [L12] COND FALSE !(i == 1) VAL [i=6, up=0] [L15] COND FALSE !(i == 10) VAL [i=6, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=5, up=0] [L11] COND TRUE i > 0 VAL [i=5, up=0] [L12] COND FALSE !(i == 1) VAL [i=5, up=0] [L15] COND FALSE !(i == 10) VAL [i=5, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=4, up=0] [L11] COND TRUE i > 0 VAL [i=4, up=0] [L12] COND FALSE !(i == 1) VAL [i=4, up=0] [L15] COND FALSE !(i == 10) VAL [i=4, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=3, up=0] [L11] COND TRUE i > 0 VAL [i=3, up=0] [L12] COND FALSE !(i == 1) VAL [i=3, up=0] [L15] COND FALSE !(i == 10) VAL [i=3, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=2, up=0] [L11] COND TRUE i > 0 VAL [i=2, up=0] [L12] COND FALSE !(i == 1) VAL [i=2, up=0] [L15] COND FALSE !(i == 10) VAL [i=2, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=1, up=0] [L11] COND TRUE i > 0 VAL [i=1, up=0] Loop: [L12] COND TRUE i == 1 [L13] up = 1 [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND TRUE i == 10 [L16] up = 0 [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 07:42:01,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:01,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2023-11-19 07:42:01,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-19 07:42:01,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:01,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:02,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81d7ed7-ba17-4f94-82a0-896019363af7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)