./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/nested9.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/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_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/nested9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/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 32bit --witnessprinter.graph.data.programhash f3ca1fd1ad8fdbcd9efe7b99bc6e3715231417d253ce4ee9bba3d5969472333a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:34:54,867 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:34:54,993 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-19 07:34:55,004 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:34:55,006 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:34:55,043 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:34:55,045 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:34:55,046 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:34:55,047 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:34:55,052 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:34:55,053 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:34:55,054 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:34:55,054 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:34:55,056 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:34:55,056 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:34:55,057 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:34:55,057 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:34:55,058 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:34:55,058 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:34:55,059 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:34:55,059 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:34:55,060 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:34:55,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:34:55,061 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:34:55,061 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:34:55,061 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:34:55,062 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:34:55,062 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:34:55,063 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:34:55,063 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:34:55,064 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:34:55,066 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:34:55,066 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:34:55,066 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:34:55,066 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:34:55,067 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:34:55,068 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_6a469069-1d59-492c-9511-f26dc73719a2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3ca1fd1ad8fdbcd9efe7b99bc6e3715231417d253ce4ee9bba3d5969472333a [2023-11-19 07:34:55,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:34:55,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:34:55,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:34:55,392 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:34:55,393 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:34:55,395 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/loop-invgen/nested9.i [2023-11-19 07:34:58,579 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:34:58,837 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:34:58,838 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/sv-benchmarks/c/loop-invgen/nested9.i [2023-11-19 07:34:58,845 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/data/275c6a5dc/713c61a6d36542ec82e4f3d1e93a585a/FLAG467e70808 [2023-11-19 07:34:58,863 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/data/275c6a5dc/713c61a6d36542ec82e4f3d1e93a585a [2023-11-19 07:34:58,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:34:58,868 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:34:58,870 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:34:58,870 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:34:58,877 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:34:58,878 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:58" (1/1) ... [2023-11-19 07:34:58,879 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@707522c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:58, skipping insertion in model container [2023-11-19 07:34:58,880 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:58" (1/1) ... [2023-11-19 07:34:58,904 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:34:59,118 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:34:59,131 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:34:59,152 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:34:59,172 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:34:59,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:59 WrapperNode [2023-11-19 07:34:59,172 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:34:59,174 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:34:59,174 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:34:59,175 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:34:59,184 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:59" (1/1) ... [2023-11-19 07:34:59,195 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:59" (1/1) ... [2023-11-19 07:34:59,223 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2023-11-19 07:34:59,223 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:34:59,224 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:34:59,224 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:34:59,225 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:34:59,235 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:59" (1/1) ... [2023-11-19 07:34:59,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:59" (1/1) ... [2023-11-19 07:34:59,238 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:59" (1/1) ... [2023-11-19 07:34:59,238 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:59" (1/1) ... [2023-11-19 07:34:59,253 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:59" (1/1) ... [2023-11-19 07:34:59,258 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:59" (1/1) ... [2023-11-19 07:34:59,270 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:59" (1/1) ... [2023-11-19 07:34:59,271 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:59" (1/1) ... [2023-11-19 07:34:59,273 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:34:59,274 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:34:59,282 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:34:59,283 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:34:59,284 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:59" (1/1) ... [2023-11-19 07:34:59,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:34:59,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:59,336 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:34:59,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:34:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:34:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:34:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:34:59,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:34:59,498 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:34:59,502 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:34:59,730 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:34:59,739 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:34:59,739 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 07:34:59,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:59 BoogieIcfgContainer [2023-11-19 07:34:59,743 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:34:59,744 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:34:59,744 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:34:59,750 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:34:59,751 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:34:59,751 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:34:58" (1/3) ... [2023-11-19 07:34:59,752 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@540ffe42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:34:59, skipping insertion in model container [2023-11-19 07:34:59,753 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:34:59,753 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:59" (2/3) ... [2023-11-19 07:34:59,753 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@540ffe42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:34:59, skipping insertion in model container [2023-11-19 07:34:59,754 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:34:59,754 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:59" (3/3) ... [2023-11-19 07:34:59,755 INFO L332 chiAutomizerObserver]: Analyzing ICFG nested9.i [2023-11-19 07:34:59,828 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:34:59,828 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:34:59,828 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:34:59,828 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:34:59,829 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:34:59,829 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:34:59,829 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:34:59,829 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:34:59,835 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 states have internal predecessors, (33), 0 states have call successors, (0), 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 07:34:59,879 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2023-11-19 07:34:59,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:34:59,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:34:59,886 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:59,887 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 07:34:59,887 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:34:59,888 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 states have internal predecessors, (33), 0 states have call successors, (0), 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 07:34:59,890 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2023-11-19 07:34:59,891 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:34:59,891 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:34:59,892 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:59,892 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 07:34:59,902 INFO L748 eck$LassoCheckResult]: Stem: 17#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);~__BLAST_NONDET~0 := 0; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post5#1, main_#t~post4#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1, main_~l~0#1, main_~m~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_#t~nondet1#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~l~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 4#L30true assume !!(-1000000 < main_~n~0#1 && main_~n~0#1 < 1000000); 7#L31true assume !!(-1000000 < main_~m~0#1 && main_~m~0#1 < 1000000); 9#L32true assume !!(-1000000 < main_~l~0#1 && main_~l~0#1 < 1000000); 6#L33true assume 3 * main_~n~0#1 <= main_~m~0#1 + main_~l~0#1; 5#L33-1true main_~i~0#1 := 0; 22#L34-3true [2023-11-19 07:34:59,903 INFO L750 eck$LassoCheckResult]: Loop: 22#L34-3true assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 12#L35-3true assume !(main_~j~0#1 < 3 * main_~i~0#1); 11#L34-2true main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 22#L34-3true [2023-11-19 07:34:59,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:59,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1806907757, now seen corresponding path program 1 times [2023-11-19 07:34:59,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:59,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939389711] [2023-11-19 07:34:59,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:59,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:00,056 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:35:00,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:00,112 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:35:00,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:00,115 INFO L85 PathProgramCache]: Analyzing trace with hash 61796, now seen corresponding path program 1 times [2023-11-19 07:35:00,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:00,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856015974] [2023-11-19 07:35:00,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:00,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:00,128 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:35:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:00,136 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:35:00,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:00,139 INFO L85 PathProgramCache]: Analyzing trace with hash 763900024, now seen corresponding path program 1 times [2023-11-19 07:35:00,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:00,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903043335] [2023-11-19 07:35:00,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:00,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:00,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:00,193 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:35:00,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:00,212 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:35:00,300 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:35:00,300 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:35:00,301 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:35:00,301 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:35:00,301 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:35:00,302 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:00,302 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:35:00,302 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:35:00,302 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration1_Loop [2023-11-19 07:35:00,303 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:35:00,303 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:35:00,326 INFO 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 07:35:00,338 INFO 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 07:35:00,414 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:35:00,415 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:35:00,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:00,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:00,421 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:00,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-19 07:35:00,439 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:35:00,439 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:35:00,471 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:35:00,471 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4#1=0} Honda state: {ULTIMATE.start_main_#t~post4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:35:00,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:00,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:00,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:00,506 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:00,516 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:35:00,517 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:35:00,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-19 07:35:00,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:00,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:00,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:00,565 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:00,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-19 07:35:00,570 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:35:00,570 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:35:00,800 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:35:00,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-19 07:35:00,805 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:35:00,806 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:35:00,806 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:35:00,806 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:35:00,806 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:35:00,806 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:00,806 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:35:00,807 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:35:00,807 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration1_Loop [2023-11-19 07:35:00,807 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:35:00,807 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:35:00,809 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:35:00,813 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:35:00,895 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:35:00,899 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:35:00,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:00,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:00,902 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:00,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-19 07:35:00,907 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 07:35:00,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:35:00,920 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:35:00,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:35:00,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:35:00,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:35:00,924 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:35:00,924 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:35:00,954 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:35:00,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:00,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:00,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:00,986 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:00,989 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 07:35:01,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-19 07:35:01,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:35:01,005 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:35:01,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:35:01,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:35:01,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:35:01,013 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:35:01,013 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:35:01,041 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:35:01,046 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:35:01,046 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:35:01,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:01,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:01,084 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:01,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-19 07:35:01,093 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:35:01,095 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:35:01,095 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:35:01,096 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2023-11-19 07:35:01,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:01,129 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:35:01,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:01,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:01,191 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:35:01,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:01,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:01,220 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:35:01,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:01,296 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 07:35:01,352 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-19 07:35:01,355 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 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 07:35:01,565 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 74 states and 109 transitions. Complement of second has 10 states. [2023-11-19 07:35:01,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-19 07:35:01,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:01,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 73 transitions. [2023-11-19 07:35:01,586 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 73 transitions. Stem has 7 letters. Loop has 3 letters. [2023-11-19 07:35:01,587 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:35:01,587 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 73 transitions. Stem has 10 letters. Loop has 3 letters. [2023-11-19 07:35:01,587 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:35:01,588 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 73 transitions. Stem has 7 letters. Loop has 6 letters. [2023-11-19 07:35:01,588 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:35:01,589 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 74 states and 109 transitions. [2023-11-19 07:35:01,596 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2023-11-19 07:35:01,601 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 74 states to 39 states and 48 transitions. [2023-11-19 07:35:01,602 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2023-11-19 07:35:01,603 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2023-11-19 07:35:01,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 48 transitions. [2023-11-19 07:35:01,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:35:01,604 INFO L218 hiAutomatonCegarLoop]: Abstraction has 39 states and 48 transitions. [2023-11-19 07:35:01,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 48 transitions. [2023-11-19 07:35:01,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 28. [2023-11-19 07:35:01,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.25) internal successors, (35), 27 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:01,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2023-11-19 07:35:01,636 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 35 transitions. [2023-11-19 07:35:01,636 INFO L428 stractBuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2023-11-19 07:35:01,637 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 07:35:01,637 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 35 transitions. [2023-11-19 07:35:01,638 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-11-19 07:35:01,639 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:35:01,639 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:35:01,639 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:01,640 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:35:01,640 INFO L748 eck$LassoCheckResult]: Stem: 181#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);~__BLAST_NONDET~0 := 0; 170#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post5#1, main_#t~post4#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1, main_~l~0#1, main_~m~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_#t~nondet1#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~l~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 158#L30 assume !!(-1000000 < main_~n~0#1 && main_~n~0#1 < 1000000); 159#L31 assume !!(-1000000 < main_~m~0#1 && main_~m~0#1 < 1000000); 163#L32 assume !!(-1000000 < main_~l~0#1 && main_~l~0#1 < 1000000); 162#L33 assume 3 * main_~n~0#1 <= main_~m~0#1 + main_~l~0#1; 160#L33-1 main_~i~0#1 := 0; 161#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 175#L35-3 [2023-11-19 07:35:01,640 INFO L750 eck$LassoCheckResult]: Loop: 175#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 164#L36-3 assume !(main_~k~0#1 < main_~j~0#1); 166#L35-2 main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 182#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 171#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 172#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 175#L35-3 [2023-11-19 07:35:01,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:01,641 INFO L85 PathProgramCache]: Analyzing trace with hash 179565651, now seen corresponding path program 1 times [2023-11-19 07:35:01,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:01,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028032454] [2023-11-19 07:35:01,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:01,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:01,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:01,657 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:35:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:01,670 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:35:01,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:01,671 INFO L85 PathProgramCache]: Analyzing trace with hash 2077305723, now seen corresponding path program 1 times [2023-11-19 07:35:01,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:01,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721102206] [2023-11-19 07:35:01,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:01,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:01,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:01,682 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:35:01,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:01,692 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:35:01,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:01,693 INFO L85 PathProgramCache]: Analyzing trace with hash -696444339, now seen corresponding path program 1 times [2023-11-19 07:35:01,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:01,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221755379] [2023-11-19 07:35:01,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:01,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:01,820 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:01,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:01,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221755379] [2023-11-19 07:35:01,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221755379] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:01,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:01,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:35:01,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82713779] [2023-11-19 07:35:01,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:01,887 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:35:01,888 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:35:01,888 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:35:01,888 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:35:01,888 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:35:01,889 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:01,889 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:35:01,889 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:35:01,889 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration2_Loop [2023-11-19 07:35:01,889 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:35:01,889 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:35:01,891 INFO 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 07:35:01,894 INFO 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 07:35:01,897 INFO 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 07:35:01,979 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:35:01,979 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:35:01,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:01,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:01,982 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:01,991 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:35:01,991 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:35:02,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-19 07:35:02,016 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:35:02,016 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5#1=0} Honda state: {ULTIMATE.start_main_#t~post5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:35:02,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:02,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:02,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:02,035 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:02,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-19 07:35:02,038 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:35:02,038 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:35:02,051 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:35:02,051 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4#1=0} Honda state: {ULTIMATE.start_main_#t~post4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:35:02,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:02,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:02,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:02,070 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:02,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-19 07:35:02,074 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:35:02,074 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:35:02,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:02,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:02,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:02,146 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:02,155 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:35:02,156 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:35:02,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-19 07:35:02,543 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:35:02,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:02,562 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:35:02,562 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:35:02,562 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:35:02,563 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:35:02,563 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:35:02,563 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:02,563 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:35:02,563 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:35:02,563 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration2_Loop [2023-11-19 07:35:02,563 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:35:02,563 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:35:02,565 INFO 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 07:35:02,569 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 07:35:02,589 INFO 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 07:35:02,664 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:35:02,664 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:35:02,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:02,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:02,666 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:02,675 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 07:35:02,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-19 07:35:02,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:35:02,691 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:35:02,691 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:35:02,691 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:35:02,692 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:35:02,692 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:35:02,693 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:35:02,702 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:35:02,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:02,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:02,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:02,732 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:02,743 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 07:35:02,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-19 07:35:02,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:35:02,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:35:02,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:35:02,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:35:02,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:35:02,760 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:35:02,760 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:35:02,774 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:35:02,780 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-19 07:35:02,780 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-19 07:35:02,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:02,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:02,783 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:02,791 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:35:02,791 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:35:02,791 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:35:02,791 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2023-11-19 07:35:02,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-19 07:35:02,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:02,817 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:35:02,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:02,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:35:02,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:02,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:02,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:35:02,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:02,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:35:02,913 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 07:35:02,914 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 35 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:02,953 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 35 transitions. cyclomatic complexity: 9. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 48 states and 61 transitions. Complement of second has 6 states. [2023-11-19 07:35:02,953 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 07:35:02,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:02,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2023-11-19 07:35:02,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 8 letters. Loop has 6 letters. [2023-11-19 07:35:02,956 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:35:02,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 14 letters. Loop has 6 letters. [2023-11-19 07:35:02,956 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:35:02,957 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 8 letters. Loop has 12 letters. [2023-11-19 07:35:02,958 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:35:02,958 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 61 transitions. [2023-11-19 07:35:02,962 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-19 07:35:02,965 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 36 states and 47 transitions. [2023-11-19 07:35:02,965 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2023-11-19 07:35:02,966 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2023-11-19 07:35:02,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 47 transitions. [2023-11-19 07:35:02,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:35:02,966 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 47 transitions. [2023-11-19 07:35:02,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 47 transitions. [2023-11-19 07:35:02,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2023-11-19 07:35:02,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 34 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:02,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2023-11-19 07:35:02,971 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 45 transitions. [2023-11-19 07:35:02,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:02,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:35:03,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:35:03,001 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:03,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:03,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:03,059 INFO L93 Difference]: Finished difference Result 38 states and 47 transitions. [2023-11-19 07:35:03,059 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 47 transitions. [2023-11-19 07:35:03,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:03,061 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-19 07:35:03,062 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 37 states and 46 transitions. [2023-11-19 07:35:03,062 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2023-11-19 07:35:03,063 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2023-11-19 07:35:03,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 46 transitions. [2023-11-19 07:35:03,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:35:03,063 INFO L218 hiAutomatonCegarLoop]: Abstraction has 37 states and 46 transitions. [2023-11-19 07:35:03,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 46 transitions. [2023-11-19 07:35:03,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2023-11-19 07:35:03,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.25) internal successors, (45), 35 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:03,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions. [2023-11-19 07:35:03,067 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 45 transitions. [2023-11-19 07:35:03,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:35:03,069 INFO L428 stractBuchiCegarLoop]: Abstraction has 36 states and 45 transitions. [2023-11-19 07:35:03,069 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-19 07:35:03,069 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 45 transitions. [2023-11-19 07:35:03,070 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-19 07:35:03,070 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:35:03,070 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:35:03,071 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:03,071 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 07:35:03,071 INFO L748 eck$LassoCheckResult]: Stem: 394#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);~__BLAST_NONDET~0 := 0; 379#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post5#1, main_#t~post4#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1, main_~l~0#1, main_~m~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_#t~nondet1#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~l~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 373#L30 assume !!(-1000000 < main_~n~0#1 && main_~n~0#1 < 1000000); 374#L31 assume !!(-1000000 < main_~m~0#1 && main_~m~0#1 < 1000000); 378#L32 assume !!(-1000000 < main_~l~0#1 && main_~l~0#1 < 1000000); 377#L33 assume 3 * main_~n~0#1 <= main_~m~0#1 + main_~l~0#1; 375#L33-1 main_~i~0#1 := 0; 376#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 395#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 402#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 399#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 400#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 380#L36-3 [2023-11-19 07:35:03,072 INFO L750 eck$LassoCheckResult]: Loop: 380#L36-3 assume !(main_~k~0#1 < main_~j~0#1); 382#L35-2 main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 388#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 380#L36-3 [2023-11-19 07:35:03,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:03,072 INFO L85 PathProgramCache]: Analyzing trace with hash -331483520, now seen corresponding path program 1 times [2023-11-19 07:35:03,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:03,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654822704] [2023-11-19 07:35:03,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:03,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:03,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:03,086 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:35:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:03,098 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:35:03,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:03,099 INFO L85 PathProgramCache]: Analyzing trace with hash 76238, now seen corresponding path program 1 times [2023-11-19 07:35:03,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:03,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074636150] [2023-11-19 07:35:03,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:03,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:03,104 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:35:03,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:03,108 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:35:03,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:03,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1095684369, now seen corresponding path program 2 times [2023-11-19 07:35:03,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:03,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988717496] [2023-11-19 07:35:03,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:03,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:03,176 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:35:03,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:03,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988717496] [2023-11-19 07:35:03,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988717496] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:03,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:03,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:35:03,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781750851] [2023-11-19 07:35:03,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:03,205 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:35:03,205 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:35:03,206 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:35:03,206 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:35:03,206 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:35:03,206 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:03,206 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:35:03,206 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:35:03,206 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration3_Loop [2023-11-19 07:35:03,207 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:35:03,207 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:35:03,208 INFO 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 07:35:03,210 INFO 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 07:35:03,259 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:35:03,259 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:35:03,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:03,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:03,262 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:03,271 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:35:03,271 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:35:03,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-19 07:35:03,296 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:35:03,296 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5#1=0} Honda state: {ULTIMATE.start_main_#t~post5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:35:03,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:03,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:03,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:03,323 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:03,330 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:35:03,330 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:35:03,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-19 07:35:03,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:03,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:03,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:03,387 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:03,391 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:35:03,391 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:35:03,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-19 07:35:03,830 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:35:03,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:03,835 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:35:03,835 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:35:03,835 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:35:03,835 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:35:03,835 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:35:03,835 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:03,835 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:35:03,836 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:35:03,836 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration3_Loop [2023-11-19 07:35:03,836 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:35:03,836 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:35:03,837 INFO 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 07:35:03,856 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 07:35:03,910 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:35:03,911 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:35:03,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:03,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:03,914 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:03,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-19 07:35:03,926 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 07:35:03,942 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:35:03,942 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:35:03,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:35:03,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:35:03,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:35:03,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:35:03,946 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:35:03,961 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:35:03,976 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:35:03,976 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-19 07:35:03,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:03,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:03,978 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:03,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-19 07:35:03,986 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:35:03,987 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:35:03,987 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:35:03,987 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 3*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-19 07:35:04,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:04,017 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:35:04,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:04,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:04,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:35:04,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:04,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:04,101 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:35:04,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:04,122 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 07:35:04,123 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 07:35:04,123 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 45 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:04,168 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 45 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 86 states and 115 transitions. Complement of second has 7 states. [2023-11-19 07:35:04,169 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 07:35:04,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:04,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2023-11-19 07:35:04,174 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 12 letters. Loop has 3 letters. [2023-11-19 07:35:04,175 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:35:04,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 15 letters. Loop has 3 letters. [2023-11-19 07:35:04,175 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:35:04,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 12 letters. Loop has 6 letters. [2023-11-19 07:35:04,176 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:35:04,176 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 115 transitions. [2023-11-19 07:35:04,186 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2023-11-19 07:35:04,191 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 81 states and 108 transitions. [2023-11-19 07:35:04,191 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2023-11-19 07:35:04,191 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2023-11-19 07:35:04,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 81 states and 108 transitions. [2023-11-19 07:35:04,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:35:04,192 INFO L218 hiAutomatonCegarLoop]: Abstraction has 81 states and 108 transitions. [2023-11-19 07:35:04,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states and 108 transitions. [2023-11-19 07:35:04,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 78. [2023-11-19 07:35:04,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 78 states have (on average 1.3461538461538463) internal successors, (105), 77 states have internal predecessors, (105), 0 states have call successors, (0), 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 07:35:04,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 105 transitions. [2023-11-19 07:35:04,212 INFO L240 hiAutomatonCegarLoop]: Abstraction has 78 states and 105 transitions. [2023-11-19 07:35:04,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:04,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:35:04,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:35:04,214 INFO L87 Difference]: Start difference. First operand 78 states and 105 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:04,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:04,260 INFO L93 Difference]: Finished difference Result 81 states and 102 transitions. [2023-11-19 07:35:04,260 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 102 transitions. [2023-11-19 07:35:04,261 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2023-11-19 07:35:04,263 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 81 states and 102 transitions. [2023-11-19 07:35:04,263 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2023-11-19 07:35:04,263 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2023-11-19 07:35:04,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 81 states and 102 transitions. [2023-11-19 07:35:04,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:35:04,264 INFO L218 hiAutomatonCegarLoop]: Abstraction has 81 states and 102 transitions. [2023-11-19 07:35:04,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states and 102 transitions. [2023-11-19 07:35:04,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2023-11-19 07:35:04,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 81 states have (on average 1.2592592592592593) internal successors, (102), 80 states have internal predecessors, (102), 0 states have call successors, (0), 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 07:35:04,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 102 transitions. [2023-11-19 07:35:04,271 INFO L240 hiAutomatonCegarLoop]: Abstraction has 81 states and 102 transitions. [2023-11-19 07:35:04,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:35:04,272 INFO L428 stractBuchiCegarLoop]: Abstraction has 81 states and 102 transitions. [2023-11-19 07:35:04,272 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-19 07:35:04,273 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states and 102 transitions. [2023-11-19 07:35:04,274 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2023-11-19 07:35:04,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:35:04,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:35:04,275 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:04,275 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 07:35:04,275 INFO L748 eck$LassoCheckResult]: Stem: 751#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);~__BLAST_NONDET~0 := 0; 732#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post5#1, main_#t~post4#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1, main_~l~0#1, main_~m~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_#t~nondet1#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~l~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 726#L30 assume !!(-1000000 < main_~n~0#1 && main_~n~0#1 < 1000000); 727#L31 assume !!(-1000000 < main_~m~0#1 && main_~m~0#1 < 1000000); 731#L32 assume !!(-1000000 < main_~l~0#1 && main_~l~0#1 < 1000000); 730#L33 assume 3 * main_~n~0#1 <= main_~m~0#1 + main_~l~0#1; 728#L33-1 main_~i~0#1 := 0; 729#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 756#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 776#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 774#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 739#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 740#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 734#L18 [2023-11-19 07:35:04,275 INFO L750 eck$LassoCheckResult]: Loop: 734#L18 assume !(0 == __VERIFIER_assert_~cond#1); 750#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 743#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 733#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 734#L18 [2023-11-19 07:35:04,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:04,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1686054480, now seen corresponding path program 1 times [2023-11-19 07:35:04,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:04,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526132948] [2023-11-19 07:35:04,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:04,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:04,292 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:35:04,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:04,317 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:35:04,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:04,318 INFO L85 PathProgramCache]: Analyzing trace with hash 2835153, now seen corresponding path program 1 times [2023-11-19 07:35:04,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:04,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214983421] [2023-11-19 07:35:04,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:04,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:04,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:04,329 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:35:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:04,341 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:35:04,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:04,343 INFO L85 PathProgramCache]: Analyzing trace with hash -684086016, now seen corresponding path program 1 times [2023-11-19 07:35:04,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:04,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048452787] [2023-11-19 07:35:04,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:04,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:04,524 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:04,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:04,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048452787] [2023-11-19 07:35:04,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048452787] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:35:04,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281588460] [2023-11-19 07:35:04,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:04,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:04,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:04,527 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:35:04,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-19 07:35:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:04,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:35:04,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:04,679 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:04,680 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:35:04,732 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:04,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281588460] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:35:04,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:35:04,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 10 [2023-11-19 07:35:04,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616931042] [2023-11-19 07:35:04,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:35:04,807 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:35:04,807 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:35:04,807 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:35:04,807 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:35:04,807 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:35:04,807 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:04,808 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:35:04,808 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:35:04,808 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration4_Loop [2023-11-19 07:35:04,808 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:35:04,808 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:35:04,810 INFO 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 07:35:04,862 INFO 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 07:35:05,122 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:35:05,122 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:35:05,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:05,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:05,127 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:05,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:35:05,135 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:35:05,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-19 07:35:05,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:05,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:05,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:05,193 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:05,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-19 07:35:05,203 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:35:05,205 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:35:06,408 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:35:06,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:06,414 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:35:06,415 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:35:06,415 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:35:06,415 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:35:06,415 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:35:06,415 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:06,415 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:35:06,415 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:35:06,415 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration4_Loop [2023-11-19 07:35:06,415 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:35:06,415 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:35:06,417 INFO 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 07:35:06,490 INFO 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 07:35:06,783 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:35:06,783 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:35:06,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:06,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:06,785 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:06,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-19 07:35:06,790 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 07:35:06,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:35:06,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:35:06,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:35:06,806 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2023-11-19 07:35:06,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:35:06,816 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2023-11-19 07:35:06,816 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:35:06,832 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:35:06,839 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:35:06,840 INFO L444 ModelExtractionUtils]: 5 out of 8 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:35:06,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:06,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:06,881 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:06,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:06,900 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:35:06,900 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:35:06,900 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:35:06,900 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0#1, ULTIMATE.start_main_~j~0#1) = -1*ULTIMATE.start_main_~k~0#1 + 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2023-11-19 07:35:06,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-19 07:35:06,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:06,930 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:35:06,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:06,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:35:06,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:07,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:35:07,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:07,026 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 07:35:07,027 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 07:35:07,028 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 81 states and 102 transitions. cyclomatic complexity: 31 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:07,077 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 81 states and 102 transitions. cyclomatic complexity: 31. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 154 states and 183 transitions. Complement of second has 7 states. [2023-11-19 07:35:07,077 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 07:35:07,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:07,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2023-11-19 07:35:07,082 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 13 letters. Loop has 4 letters. [2023-11-19 07:35:07,085 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:35:07,085 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 17 letters. Loop has 4 letters. [2023-11-19 07:35:07,085 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:35:07,085 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 13 letters. Loop has 8 letters. [2023-11-19 07:35:07,086 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:35:07,087 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 154 states and 183 transitions. [2023-11-19 07:35:07,091 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2023-11-19 07:35:07,096 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 154 states to 132 states and 159 transitions. [2023-11-19 07:35:07,096 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2023-11-19 07:35:07,097 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2023-11-19 07:35:07,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 132 states and 159 transitions. [2023-11-19 07:35:07,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:35:07,097 INFO L218 hiAutomatonCegarLoop]: Abstraction has 132 states and 159 transitions. [2023-11-19 07:35:07,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states and 159 transitions. [2023-11-19 07:35:07,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 118. [2023-11-19 07:35:07,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 118 states have (on average 1.228813559322034) internal successors, (145), 117 states have internal predecessors, (145), 0 states have call successors, (0), 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 07:35:07,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 145 transitions. [2023-11-19 07:35:07,122 INFO L240 hiAutomatonCegarLoop]: Abstraction has 118 states and 145 transitions. [2023-11-19 07:35:07,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:07,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:35:07,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:35:07,123 INFO L87 Difference]: Start difference. First operand 118 states and 145 transitions. Second operand has 11 states, 10 states have (on average 3.0) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:07,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:07,270 INFO L93 Difference]: Finished difference Result 121 states and 137 transitions. [2023-11-19 07:35:07,271 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 121 states and 137 transitions. [2023-11-19 07:35:07,274 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-19 07:35:07,275 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 121 states to 90 states and 105 transitions. [2023-11-19 07:35:07,275 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2023-11-19 07:35:07,276 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2023-11-19 07:35:07,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 105 transitions. [2023-11-19 07:35:07,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:35:07,276 INFO L218 hiAutomatonCegarLoop]: Abstraction has 90 states and 105 transitions. [2023-11-19 07:35:07,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 105 transitions. [2023-11-19 07:35:07,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 69. [2023-11-19 07:35:07,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 69 states have (on average 1.1884057971014492) internal successors, (82), 68 states have internal predecessors, (82), 0 states have call successors, (0), 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 07:35:07,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 82 transitions. [2023-11-19 07:35:07,294 INFO L240 hiAutomatonCegarLoop]: Abstraction has 69 states and 82 transitions. [2023-11-19 07:35:07,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:35:07,297 INFO L428 stractBuchiCegarLoop]: Abstraction has 69 states and 82 transitions. [2023-11-19 07:35:07,300 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-19 07:35:07,300 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 82 transitions. [2023-11-19 07:35:07,301 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-19 07:35:07,303 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:35:07,304 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:35:07,305 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:07,305 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:07,306 INFO L748 eck$LassoCheckResult]: Stem: 1413#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);~__BLAST_NONDET~0 := 0; 1399#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post5#1, main_#t~post4#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1, main_~l~0#1, main_~m~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_#t~nondet1#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~l~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 1389#L30 assume !!(-1000000 < main_~n~0#1 && main_~n~0#1 < 1000000); 1390#L31 assume !!(-1000000 < main_~m~0#1 && main_~m~0#1 < 1000000); 1394#L32 assume !!(-1000000 < main_~l~0#1 && main_~l~0#1 < 1000000); 1393#L33 assume 3 * main_~n~0#1 <= main_~m~0#1 + main_~l~0#1; 1391#L33-1 main_~i~0#1 := 0; 1392#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 1418#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 1425#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 1422#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 1402#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 1403#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1410#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1411#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1412#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 1441#L36-3 assume !(main_~k~0#1 < main_~j~0#1); 1442#L35-2 main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1435#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 1426#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 1424#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 1421#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 1395#L36-3 [2023-11-19 07:35:07,306 INFO L750 eck$LassoCheckResult]: Loop: 1395#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1396#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1409#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1405#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 1406#L36-3 assume !(main_~k~0#1 < main_~j~0#1); 1414#L35-2 main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1415#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 1395#L36-3 [2023-11-19 07:35:07,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:07,307 INFO L85 PathProgramCache]: Analyzing trace with hash -77878730, now seen corresponding path program 1 times [2023-11-19 07:35:07,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:07,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998631980] [2023-11-19 07:35:07,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:07,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:07,343 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:35:07,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:07,366 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:35:07,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:07,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1064574562, now seen corresponding path program 1 times [2023-11-19 07:35:07,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:07,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405653366] [2023-11-19 07:35:07,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:07,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:07,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:07,392 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:35:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:07,405 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:35:07,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:07,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1648050633, now seen corresponding path program 2 times [2023-11-19 07:35:07,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:07,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605640679] [2023-11-19 07:35:07,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:07,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:07,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:07,586 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:35:07,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:07,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605640679] [2023-11-19 07:35:07,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605640679] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:35:07,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415510944] [2023-11-19 07:35:07,588 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:35:07,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:35:07,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:07,590 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:35:07,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-19 07:35:07,651 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:35:07,652 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:35:07,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:35:07,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:07,764 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:35:07,764 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:35:07,843 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:35:07,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415510944] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:35:07,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:35:07,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2023-11-19 07:35:07,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313054326] [2023-11-19 07:35:07,844 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:35:07,898 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:35:07,898 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:35:07,898 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:35:07,898 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:35:07,899 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:35:07,899 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:07,899 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:35:07,899 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:35:07,899 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration5_Loop [2023-11-19 07:35:07,899 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:35:07,899 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:35:07,901 INFO 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 07:35:07,903 INFO 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 07:35:07,916 INFO 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 07:35:07,919 INFO 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 07:35:07,922 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:35:07,966 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:35:07,966 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:35:07,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:07,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:07,968 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:07,974 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:35:07,974 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:35:07,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-19 07:35:07,997 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:35:07,998 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:35:08,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:08,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:08,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:08,018 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:08,022 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:35:08,022 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:35:08,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-19 07:35:08,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:08,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:08,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:08,074 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:08,078 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:35:08,078 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:35:08,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-19 07:35:08,578 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:35:08,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-11-19 07:35:08,583 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:35:08,583 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:35:08,583 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:35:08,583 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:35:08,583 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:35:08,583 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:08,583 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:35:08,583 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:35:08,583 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration5_Loop [2023-11-19 07:35:08,584 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:35:08,584 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:35:08,585 INFO 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 07:35:08,598 INFO 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 07:35:08,601 INFO 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 07:35:08,604 INFO 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 07:35:08,607 INFO 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 07:35:08,655 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:35:08,655 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:35:08,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:08,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:08,657 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:08,667 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 07:35:08,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-19 07:35:08,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:35:08,681 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:35:08,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:35:08,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:35:08,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:35:08,684 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:35:08,684 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:35:08,701 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:35:08,708 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-19 07:35:08,708 INFO L444 ModelExtractionUtils]: 1 out of 6 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-11-19 07:35:08,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:08,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:08,711 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:08,712 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:35:08,713 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:35:08,713 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:35:08,713 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 3*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-19 07:35:08,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-19 07:35:08,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:08,737 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:35:08,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:08,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:08,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:35:08,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:08,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:08,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:35:08,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:08,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:35:08,834 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 07:35:08,835 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 82 transitions. cyclomatic complexity: 19 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 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 07:35:08,865 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 82 transitions. cyclomatic complexity: 19. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 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 97 states and 110 transitions. Complement of second has 7 states. [2023-11-19 07:35:08,866 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 07:35:08,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 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 07:35:08,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2023-11-19 07:35:08,867 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 22 letters. Loop has 7 letters. [2023-11-19 07:35:08,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:35:08,868 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:35:08,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:08,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:08,899 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:35:08,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:08,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:08,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:35:08,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:08,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:35:08,960 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 07:35:08,961 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 82 transitions. cyclomatic complexity: 19 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 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 07:35:08,988 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 82 transitions. cyclomatic complexity: 19. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 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 97 states and 110 transitions. Complement of second has 7 states. [2023-11-19 07:35:08,989 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 07:35:08,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 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 07:35:08,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2023-11-19 07:35:08,991 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 22 letters. Loop has 7 letters. [2023-11-19 07:35:08,991 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:35:08,991 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:35:09,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:09,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:35:09,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:09,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:35:09,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:09,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:35:09,095 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 07:35:09,096 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 82 transitions. cyclomatic complexity: 19 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 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 07:35:09,134 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 82 transitions. cyclomatic complexity: 19. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 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 115 states and 134 transitions. Complement of second has 6 states. [2023-11-19 07:35:09,134 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 07:35:09,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 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 07:35:09,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2023-11-19 07:35:09,136 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 22 letters. Loop has 7 letters. [2023-11-19 07:35:09,141 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:35:09,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 29 letters. Loop has 7 letters. [2023-11-19 07:35:09,142 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:35:09,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 22 letters. Loop has 14 letters. [2023-11-19 07:35:09,143 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:35:09,143 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 115 states and 134 transitions. [2023-11-19 07:35:09,144 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:35:09,145 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 115 states to 87 states and 104 transitions. [2023-11-19 07:35:09,146 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2023-11-19 07:35:09,146 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2023-11-19 07:35:09,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 104 transitions. [2023-11-19 07:35:09,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:35:09,146 INFO L218 hiAutomatonCegarLoop]: Abstraction has 87 states and 104 transitions. [2023-11-19 07:35:09,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 104 transitions. [2023-11-19 07:35:09,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 82. [2023-11-19 07:35:09,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 82 states have (on average 1.2073170731707317) internal successors, (99), 81 states have internal predecessors, (99), 0 states have call successors, (0), 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 07:35:09,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 99 transitions. [2023-11-19 07:35:09,153 INFO L240 hiAutomatonCegarLoop]: Abstraction has 82 states and 99 transitions. [2023-11-19 07:35:09,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:09,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:35:09,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:35:09,157 INFO L87 Difference]: Start difference. First operand 82 states and 99 transitions. Second operand has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 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 07:35:09,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:09,304 INFO L93 Difference]: Finished difference Result 153 states and 170 transitions. [2023-11-19 07:35:09,305 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 153 states and 170 transitions. [2023-11-19 07:35:09,306 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:35:09,308 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 153 states to 130 states and 146 transitions. [2023-11-19 07:35:09,308 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2023-11-19 07:35:09,309 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2023-11-19 07:35:09,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 130 states and 146 transitions. [2023-11-19 07:35:09,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:35:09,309 INFO L218 hiAutomatonCegarLoop]: Abstraction has 130 states and 146 transitions. [2023-11-19 07:35:09,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states and 146 transitions. [2023-11-19 07:35:09,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 101. [2023-11-19 07:35:09,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 101 states have (on average 1.1584158415841583) internal successors, (117), 100 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:09,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 117 transitions. [2023-11-19 07:35:09,316 INFO L240 hiAutomatonCegarLoop]: Abstraction has 101 states and 117 transitions. [2023-11-19 07:35:09,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:35:09,317 INFO L428 stractBuchiCegarLoop]: Abstraction has 101 states and 117 transitions. [2023-11-19 07:35:09,317 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-19 07:35:09,317 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 101 states and 117 transitions. [2023-11-19 07:35:09,318 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:35:09,318 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:35:09,318 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:35:09,319 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:09,320 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 07:35:09,320 INFO L748 eck$LassoCheckResult]: Stem: 2512#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);~__BLAST_NONDET~0 := 0; 2495#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post5#1, main_#t~post4#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1, main_~l~0#1, main_~m~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_#t~nondet1#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~l~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 2489#L30 assume !!(-1000000 < main_~n~0#1 && main_~n~0#1 < 1000000); 2490#L31 assume !!(-1000000 < main_~m~0#1 && main_~m~0#1 < 1000000); 2494#L32 assume !!(-1000000 < main_~l~0#1 && main_~l~0#1 < 1000000); 2493#L33 assume 3 * main_~n~0#1 <= main_~m~0#1 + main_~l~0#1; 2491#L33-1 main_~i~0#1 := 0; 2492#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 2515#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 2525#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 2517#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 2502#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 2503#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 2587#L18 assume !(0 == __VERIFIER_assert_~cond#1); 2589#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 2588#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 2532#L36-3 assume !(main_~k~0#1 < main_~j~0#1); 2530#L35-2 main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 2528#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 2500#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 2501#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 2516#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 2577#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 2497#L18 [2023-11-19 07:35:09,320 INFO L750 eck$LassoCheckResult]: Loop: 2497#L18 assume !(0 == __VERIFIER_assert_~cond#1); 2508#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 2505#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 2496#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 2497#L18 [2023-11-19 07:35:09,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:09,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1880726714, now seen corresponding path program 3 times [2023-11-19 07:35:09,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:09,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426081818] [2023-11-19 07:35:09,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:09,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:09,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:09,349 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:35:09,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:09,381 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:35:09,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:09,383 INFO L85 PathProgramCache]: Analyzing trace with hash 2835153, now seen corresponding path program 2 times [2023-11-19 07:35:09,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:09,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995555801] [2023-11-19 07:35:09,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:09,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:09,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2023-11-19 07:35:09,391 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:35:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:09,397 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:35:09,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:09,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1548081930, now seen corresponding path program 4 times [2023-11-19 07:35:09,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:09,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627102216] [2023-11-19 07:35:09,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:09,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:09,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:09,425 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:35:09,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-11-19 07:35:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:09,454 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:35:09,523 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:35:09,524 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:35:09,524 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:35:09,524 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:35:09,524 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:35:09,524 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:09,524 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:35:09,524 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:35:09,525 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration6_Loop [2023-11-19 07:35:09,525 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:35:09,525 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:35:09,526 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:35:09,531 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:35:09,812 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:35:09,812 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:35:09,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:09,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:09,814 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:09,822 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:35:09,822 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:35:09,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-19 07:35:09,845 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:35:09,846 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6#1=0} Honda state: {ULTIMATE.start_main_#t~post6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:35:09,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-11-19 07:35:09,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:09,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:09,868 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:09,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-19 07:35:09,874 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:35:09,874 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:35:09,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:09,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:09,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:09,923 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:09,926 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:35:09,926 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:35:09,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-19 07:35:11,057 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:35:11,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2023-11-19 07:35:11,062 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:35:11,062 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:35:11,062 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:35:11,062 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:35:11,063 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:35:11,063 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:11,063 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:35:11,063 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:35:11,063 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration6_Loop [2023-11-19 07:35:11,063 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:35:11,063 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:35:11,064 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:35:11,071 INFO 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 07:35:11,353 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:35:11,354 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:35:11,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:11,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:11,358 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:11,362 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 07:35:11,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-19 07:35:11,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:35:11,377 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:35:11,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:35:11,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:35:11,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:35:11,378 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:35:11,378 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:35:11,387 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:35:11,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:11,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:11,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:11,416 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:11,422 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 07:35:11,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-19 07:35:11,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:35:11,437 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:35:11,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:35:11,438 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2023-11-19 07:35:11,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:35:11,446 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2023-11-19 07:35:11,447 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:35:11,466 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:35:11,482 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:35:11,482 INFO L444 ModelExtractionUtils]: 5 out of 8 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:35:11,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:11,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:11,484 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:11,488 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:35:11,488 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:35:11,488 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:35:11,488 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0#1, ULTIMATE.start_main_~j~0#1) = -1*ULTIMATE.start_main_~k~0#1 + 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2023-11-19 07:35:11,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-19 07:35:11,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:11,516 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:35:11,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:11,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:35:11,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:11,590 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:35:11,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:11,606 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 07:35:11,606 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 07:35:11,607 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 101 states and 117 transitions. cyclomatic complexity: 22 Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 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 07:35:11,647 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 101 states and 117 transitions. cyclomatic complexity: 22. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 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 156 states and 174 transitions. Complement of second has 7 states. [2023-11-19 07:35:11,647 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 07:35:11,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 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 07:35:11,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2023-11-19 07:35:11,651 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 23 letters. Loop has 4 letters. [2023-11-19 07:35:11,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:35:11,652 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:35:11,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:11,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:11,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:35:11,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:11,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:11,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:35:11,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:11,754 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 07:35:11,755 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 07:35:11,755 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 101 states and 117 transitions. cyclomatic complexity: 22 Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 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 07:35:11,780 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 101 states and 117 transitions. cyclomatic complexity: 22. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 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 156 states and 174 transitions. Complement of second has 7 states. [2023-11-19 07:35:11,780 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 07:35:11,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 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 07:35:11,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2023-11-19 07:35:11,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 23 letters. Loop has 4 letters. [2023-11-19 07:35:11,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:35:11,782 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:35:11,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:11,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:11,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:35:11,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:11,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:35:11,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:11,851 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 07:35:11,851 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 07:35:11,852 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 101 states and 117 transitions. cyclomatic complexity: 22 Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 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 07:35:11,878 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 101 states and 117 transitions. cyclomatic complexity: 22. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 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 166 states and 185 transitions. Complement of second has 6 states. [2023-11-19 07:35:11,879 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 07:35:11,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 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 07:35:11,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2023-11-19 07:35:11,880 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 23 letters. Loop has 4 letters. [2023-11-19 07:35:11,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:35:11,881 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 27 letters. Loop has 4 letters. [2023-11-19 07:35:11,881 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:35:11,881 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 23 letters. Loop has 8 letters. [2023-11-19 07:35:11,881 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:35:11,881 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 166 states and 185 transitions. [2023-11-19 07:35:11,883 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:35:11,883 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 166 states to 0 states and 0 transitions. [2023-11-19 07:35:11,883 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 07:35:11,883 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 07:35:11,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 07:35:11,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:35:11,884 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:35:11,884 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:35:11,884 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:35:11,884 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-19 07:35:11,884 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:35:11,884 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:35:11,885 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-19 07:35:11,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:35:11 BoogieIcfgContainer [2023-11-19 07:35:11,893 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:35:11,894 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:35:11,894 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:35:11,895 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:35:11,895 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:59" (3/4) ... [2023-11-19 07:35:11,897 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:35:11,898 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:35:11,898 INFO L158 Benchmark]: Toolchain (without parser) took 13030.72ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 107.5MB in the beginning and 81.7MB in the end (delta: 25.8MB). Peak memory consumption was 77.2MB. Max. memory is 16.1GB. [2023-11-19 07:35:11,899 INFO L158 Benchmark]: CDTParser took 0.65ms. Allocated memory is still 153.1MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:35:11,899 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.04ms. Allocated memory is still 153.1MB. Free memory was 107.0MB in the beginning and 96.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:35:11,899 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.42ms. Allocated memory is still 153.1MB. Free memory was 96.5MB in the beginning and 95.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:35:11,900 INFO L158 Benchmark]: Boogie Preprocessor took 49.43ms. Allocated memory is still 153.1MB. Free memory was 95.0MB in the beginning and 93.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:35:11,900 INFO L158 Benchmark]: RCFGBuilder took 468.54ms. Allocated memory is still 153.1MB. Free memory was 93.8MB in the beginning and 83.4MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:35:11,900 INFO L158 Benchmark]: BuchiAutomizer took 12149.35ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 82.9MB in the beginning and 82.8MB in the end (delta: 88.9kB). Peak memory consumption was 49.9MB. Max. memory is 16.1GB. [2023-11-19 07:35:11,901 INFO L158 Benchmark]: Witness Printer took 3.64ms. Allocated memory is still 201.3MB. Free memory was 82.8MB in the beginning and 81.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:35:11,903 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65ms. Allocated memory is still 153.1MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.04ms. Allocated memory is still 153.1MB. Free memory was 107.0MB in the beginning and 96.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.42ms. Allocated memory is still 153.1MB. Free memory was 96.5MB in the beginning and 95.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 49.43ms. Allocated memory is still 153.1MB. Free memory was 95.0MB in the beginning and 93.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 468.54ms. Allocated memory is still 153.1MB. Free memory was 93.8MB in the beginning and 83.4MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 12149.35ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 82.9MB in the beginning and 82.8MB in the end (delta: 88.9kB). Peak memory consumption was 49.9MB. Max. memory is 16.1GB. * Witness Printer took 3.64ms. Allocated memory is still 201.3MB. Free memory was 82.8MB in the beginning and 81.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (4 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function ((-2 * i) + 1) and consists of 6 locations. One deterministic module has affine ranking function ((-1 * i) + n) and consists of 4 locations. One deterministic module has affine ranking function ((-1 * j) + (3 * i)) and consists of 4 locations. One deterministic module has affine ranking function (j + (-1 * k)) and consists of 4 locations. One nondeterministic module has affine ranking function ((-1 * j) + (3 * i)) and consists of 4 locations. One nondeterministic module has affine ranking function (j + (-1 * k)) and consists of 4 locations. 4 modules have a trivial ranking function, the largest among these consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.0s and 7 iterations. TraceHistogramMax:3. Analysis of lassos took 9.6s. Construction of modules took 0.3s. Büchi inclusion checks took 1.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 85 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 296 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 286 mSDsluCounter, 410 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 198 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 377 IncrementalHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 212 mSDtfsCounter, 377 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT4 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital31 mio100 ax100 hnf100 lsp117 ukn88 mio100 lsp100 div100 bol100 ite100 ukn100 eq157 hnf94 smp100 dnf233 smp83 tf104 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 116ms VariablesStem: 0 VariablesLoop: 8 DisjunctsStem: 1 DisjunctsLoop: 4 SupportingInvariants: 0 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 4.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-19 07:35:11,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-11-19 07:35:12,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-19 07:35:12,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-19 07:35:12,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a469069-1d59-492c-9511-f26dc73719a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE