./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Narrowing.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Narrowing.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 65d96571ae692dc892a607d17412b050d92bd8365fc1d6c09a627f6750d6e1ac --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:10:54,175 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:10:54,263 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-13 16:10:54,272 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:10:54,272 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:10:54,311 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:10:54,312 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:10:54,312 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:10:54,313 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:10:54,313 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:10:54,313 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:10:54,314 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:10:54,314 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:10:54,314 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-13 16:10:54,314 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-13 16:10:54,315 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-13 16:10:54,316 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-13 16:10:54,316 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-13 16:10:54,316 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-13 16:10:54,317 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:10:54,317 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-13 16:10:54,317 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:10:54,317 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:10:54,317 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-13 16:10:54,317 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-13 16:10:54,317 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-13 16:10:54,317 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:10:54,317 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:10:54,318 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:10:54,318 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-13 16:10:54,318 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:10:54,318 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:10:54,318 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:10:54,318 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:10:54,318 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:10:54,318 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-13 16:10:54,319 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65d96571ae692dc892a607d17412b050d92bd8365fc1d6c09a627f6750d6e1ac [2024-11-13 16:10:54,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:10:54,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:10:54,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:10:54,657 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:10:54,658 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:10:54,659 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/termination-restricted-15/Narrowing.c Unable to find full path for "g++" [2024-11-13 16:10:56,549 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:10:56,814 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:10:56,815 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/sv-benchmarks/c/termination-restricted-15/Narrowing.c [2024-11-13 16:10:56,841 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/data/3183a9fad/97e2cde3e1444a6bb011b842d0e30fa5/FLAG0d78d7d19 [2024-11-13 16:10:56,869 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/data/3183a9fad/97e2cde3e1444a6bb011b842d0e30fa5 [2024-11-13 16:10:56,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:10:56,873 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:10:56,875 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:10:56,875 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:10:56,880 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:10:56,881 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:10:56" (1/1) ... [2024-11-13 16:10:56,882 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e53d92b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:56, skipping insertion in model container [2024-11-13 16:10:56,883 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:10:56" (1/1) ... [2024-11-13 16:10:56,899 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:10:57,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:10:57,060 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:10:57,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:10:57,090 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:10:57,091 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57 WrapperNode [2024-11-13 16:10:57,091 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:10:57,092 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:10:57,093 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:10:57,093 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:10:57,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57" (1/1) ... [2024-11-13 16:10:57,111 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57" (1/1) ... [2024-11-13 16:10:57,132 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2024-11-13 16:10:57,133 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:10:57,133 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:10:57,134 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:10:57,134 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:10:57,144 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57" (1/1) ... [2024-11-13 16:10:57,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57" (1/1) ... [2024-11-13 16:10:57,147 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57" (1/1) ... [2024-11-13 16:10:57,154 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-13 16:10:57,154 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57" (1/1) ... [2024-11-13 16:10:57,155 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57" (1/1) ... [2024-11-13 16:10:57,158 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57" (1/1) ... [2024-11-13 16:10:57,163 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57" (1/1) ... [2024-11-13 16:10:57,167 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57" (1/1) ... [2024-11-13 16:10:57,168 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57" (1/1) ... [2024-11-13 16:10:57,169 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:10:57,170 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:10:57,170 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:10:57,173 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:10:57,174 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57" (1/1) ... [2024-11-13 16:10:57,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:10:57,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:10:57,222 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:10:57,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-13 16:10:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:10:57,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:10:57,345 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:10:57,347 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:10:57,451 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-13 16:10:57,452 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:10:57,460 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:10:57,461 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 16:10:57,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:10:57 BoogieIcfgContainer [2024-11-13 16:10:57,461 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:10:57,462 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-13 16:10:57,462 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-13 16:10:57,467 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-13 16:10:57,468 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 16:10:57,468 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 04:10:56" (1/3) ... [2024-11-13 16:10:57,469 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15462602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 04:10:57, skipping insertion in model container [2024-11-13 16:10:57,469 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 16:10:57,470 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:57" (2/3) ... [2024-11-13 16:10:57,470 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15462602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 04:10:57, skipping insertion in model container [2024-11-13 16:10:57,470 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 16:10:57,470 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:10:57" (3/3) ... [2024-11-13 16:10:57,471 INFO L333 chiAutomizerObserver]: Analyzing ICFG Narrowing.c [2024-11-13 16:10:57,545 INFO L299 stractBuchiCegarLoop]: Interprodecural is true [2024-11-13 16:10:57,545 INFO L300 stractBuchiCegarLoop]: Hoare is None [2024-11-13 16:10:57,545 INFO L301 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-13 16:10:57,546 INFO L302 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-13 16:10:57,546 INFO L303 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-13 16:10:57,546 INFO L304 stractBuchiCegarLoop]: Difference is false [2024-11-13 16:10:57,546 INFO L305 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-13 16:10:57,547 INFO L309 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-13 16:10:57,552 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:10:57,570 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-13 16:10:57,571 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:10:57,572 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:10:57,578 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 16:10:57,578 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-13 16:10:57,578 INFO L331 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-13 16:10:57,579 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:10:57,580 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-13 16:10:57,581 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:10:57,581 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:10:57,581 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 16:10:57,582 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-13 16:10:57,590 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0; 4#L26-1true [2024-11-13 16:10:57,590 INFO L747 eck$LassoCheckResult]: Loop: 4#L26-1true assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 11#L14true assume 0 == main_~i~0#1;main_~up~0#1 := 1; 12#L14-2true assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0; 9#L17-1true assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 7#L20-1true assume !(0 == main_~up~0#1); 10#L23-1true assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 4#L26-1true [2024-11-13 16:10:57,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:57,599 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-13 16:10:57,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:57,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177628802] [2024-11-13 16:10:57,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:57,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:57,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:57,704 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:10:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:57,730 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:10:57,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:57,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1186392078, now seen corresponding path program 1 times [2024-11-13 16:10:57,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:57,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723751566] [2024-11-13 16:10:57,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:57,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:57,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:10:57,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:10:57,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:10:57,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723751566] [2024-11-13 16:10:57,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723751566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:10:57,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:10:57,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:10:57,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707932978] [2024-11-13 16:10:57,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:10:57,881 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-13 16:10:57,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:10:57,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:10:57,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:10:57,921 INFO L87 Difference]: Start difference. First operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:10:57,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:10:57,967 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2024-11-13 16:10:57,968 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 30 transitions. [2024-11-13 16:10:57,969 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-11-13 16:10:57,976 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 14 states and 23 transitions. [2024-11-13 16:10:57,977 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-11-13 16:10:57,977 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-11-13 16:10:57,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 23 transitions. [2024-11-13 16:10:57,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 16:10:57,978 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 23 transitions. [2024-11-13 16:10:57,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 23 transitions. [2024-11-13 16:10:58,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-13 16:10:58,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 13 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:10:58,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 23 transitions. [2024-11-13 16:10:58,004 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 23 transitions. [2024-11-13 16:10:58,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:10:58,010 INFO L424 stractBuchiCegarLoop]: Abstraction has 14 states and 23 transitions. [2024-11-13 16:10:58,011 INFO L331 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-13 16:10:58,011 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 23 transitions. [2024-11-13 16:10:58,012 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-11-13 16:10:58,012 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:10:58,012 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:10:58,012 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 16:10:58,012 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-13 16:10:58,013 INFO L745 eck$LassoCheckResult]: Stem: 43#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 44#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0; 48#L26-1 [2024-11-13 16:10:58,013 INFO L747 eck$LassoCheckResult]: Loop: 48#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 54#L14 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 51#L14-2 assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0; 49#L17-1 assume !(1 == main_~up~0#1); 50#L20-1 assume !(0 == main_~up~0#1); 47#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 48#L26-1 [2024-11-13 16:10:58,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:58,014 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-11-13 16:10:58,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:58,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900268145] [2024-11-13 16:10:58,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:58,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:58,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:58,022 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:10:58,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:58,032 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:10:58,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:58,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1186394000, now seen corresponding path program 1 times [2024-11-13 16:10:58,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:58,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144796195] [2024-11-13 16:10:58,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:58,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:10:58,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:10:58,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:10:58,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144796195] [2024-11-13 16:10:58,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144796195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:10:58,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:10:58,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:10:58,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531639626] [2024-11-13 16:10:58,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:10:58,095 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-13 16:10:58,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:10:58,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:10:58,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:10:58,096 INFO L87 Difference]: Start difference. First operand 14 states and 23 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:10:58,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:10:58,136 INFO L93 Difference]: Finished difference Result 14 states and 22 transitions. [2024-11-13 16:10:58,136 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 22 transitions. [2024-11-13 16:10:58,137 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-11-13 16:10:58,137 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 22 transitions. [2024-11-13 16:10:58,138 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-11-13 16:10:58,138 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-11-13 16:10:58,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 22 transitions. [2024-11-13 16:10:58,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 16:10:58,138 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 22 transitions. [2024-11-13 16:10:58,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 22 transitions. [2024-11-13 16:10:58,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-13 16:10:58,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 13 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) [2024-11-13 16:10:58,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 22 transitions. [2024-11-13 16:10:58,140 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 22 transitions. [2024-11-13 16:10:58,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:10:58,144 INFO L424 stractBuchiCegarLoop]: Abstraction has 14 states and 22 transitions. [2024-11-13 16:10:58,144 INFO L331 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-13 16:10:58,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 22 transitions. [2024-11-13 16:10:58,145 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-11-13 16:10:58,145 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:10:58,145 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:10:58,145 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 16:10:58,145 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-13 16:10:58,145 INFO L745 eck$LassoCheckResult]: Stem: 77#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 78#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0; 83#L26-1 [2024-11-13 16:10:58,145 INFO L747 eck$LassoCheckResult]: Loop: 83#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 84#L14 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 85#L14-2 assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0; 81#L17-1 assume !(1 == main_~up~0#1); 79#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 80#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 83#L26-1 [2024-11-13 16:10:58,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:58,146 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2024-11-13 16:10:58,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:58,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245287575] [2024-11-13 16:10:58,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:58,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:58,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:58,155 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:10:58,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:58,160 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:10:58,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:58,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1186393938, now seen corresponding path program 1 times [2024-11-13 16:10:58,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:58,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705927008] [2024-11-13 16:10:58,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:58,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:58,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:10:58,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:10:58,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:10:58,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705927008] [2024-11-13 16:10:58,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705927008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:10:58,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:10:58,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:10:58,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831133288] [2024-11-13 16:10:58,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:10:58,281 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-13 16:10:58,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:10:58,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:10:58,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:10:58,282 INFO L87 Difference]: Start difference. First operand 14 states and 22 transitions. cyclomatic complexity: 9 Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:10:58,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:10:58,397 INFO L93 Difference]: Finished difference Result 34 states and 52 transitions. [2024-11-13 16:10:58,397 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 52 transitions. [2024-11-13 16:10:58,398 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 32 [2024-11-13 16:10:58,401 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 34 states and 52 transitions. [2024-11-13 16:10:58,401 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2024-11-13 16:10:58,402 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2024-11-13 16:10:58,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 52 transitions. [2024-11-13 16:10:58,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 16:10:58,403 INFO L218 hiAutomatonCegarLoop]: Abstraction has 34 states and 52 transitions. [2024-11-13 16:10:58,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 52 transitions. [2024-11-13 16:10:58,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2024-11-13 16:10:58,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 30 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:10:58,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 48 transitions. [2024-11-13 16:10:58,410 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 48 transitions. [2024-11-13 16:10:58,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:10:58,412 INFO L424 stractBuchiCegarLoop]: Abstraction has 31 states and 48 transitions. [2024-11-13 16:10:58,412 INFO L331 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-13 16:10:58,412 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 48 transitions. [2024-11-13 16:10:58,413 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 29 [2024-11-13 16:10:58,413 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:10:58,413 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:10:58,414 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 16:10:58,414 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-13 16:10:58,414 INFO L745 eck$LassoCheckResult]: Stem: 132#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 133#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0; 138#L26-1 [2024-11-13 16:10:58,414 INFO L747 eck$LassoCheckResult]: Loop: 138#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 150#L14 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 149#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 148#L17-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 146#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 147#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 138#L26-1 [2024-11-13 16:10:58,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:58,414 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2024-11-13 16:10:58,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:58,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790662073] [2024-11-13 16:10:58,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:58,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:58,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:58,424 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:10:58,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:58,426 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:10:58,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:58,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1186451600, now seen corresponding path program 1 times [2024-11-13 16:10:58,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:58,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801992070] [2024-11-13 16:10:58,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:58,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:10:58,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:10:58,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:10:58,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801992070] [2024-11-13 16:10:58,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801992070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:10:58,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:10:58,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:10:58,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159790830] [2024-11-13 16:10:58,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:10:58,473 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-13 16:10:58,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:10:58,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:10:58,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:10:58,474 INFO L87 Difference]: Start difference. First operand 31 states and 48 transitions. cyclomatic complexity: 18 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:10:58,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:10:58,490 INFO L93 Difference]: Finished difference Result 31 states and 45 transitions. [2024-11-13 16:10:58,490 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 45 transitions. [2024-11-13 16:10:58,491 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 29 [2024-11-13 16:10:58,491 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 45 transitions. [2024-11-13 16:10:58,491 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2024-11-13 16:10:58,492 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2024-11-13 16:10:58,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 45 transitions. [2024-11-13 16:10:58,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 16:10:58,492 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 45 transitions. [2024-11-13 16:10:58,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 45 transitions. [2024-11-13 16:10:58,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 25. [2024-11-13 16:10:58,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.44) internal successors, (36), 24 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:10:58,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 36 transitions. [2024-11-13 16:10:58,500 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 36 transitions. [2024-11-13 16:10:58,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:10:58,504 INFO L424 stractBuchiCegarLoop]: Abstraction has 25 states and 36 transitions. [2024-11-13 16:10:58,504 INFO L331 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-13 16:10:58,504 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 36 transitions. [2024-11-13 16:10:58,505 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2024-11-13 16:10:58,505 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:10:58,505 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:10:58,505 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 16:10:58,505 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-13 16:10:58,506 INFO L745 eck$LassoCheckResult]: Stem: 200#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 201#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0; 206#L26-1 [2024-11-13 16:10:58,506 INFO L747 eck$LassoCheckResult]: Loop: 206#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 212#L14 assume !(0 == main_~i~0#1); 209#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 210#L17-1 assume !(1 == main_~up~0#1); 216#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 213#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 206#L26-1 [2024-11-13 16:10:58,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:58,506 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2024-11-13 16:10:58,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:58,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860099906] [2024-11-13 16:10:58,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:58,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:58,516 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:10:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:58,519 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:10:58,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:58,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1188300564, now seen corresponding path program 1 times [2024-11-13 16:10:58,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:58,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599054958] [2024-11-13 16:10:58,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:58,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:58,533 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:10:58,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:58,542 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:10:58,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:58,543 INFO L85 PathProgramCache]: Analyzing trace with hash 268349782, now seen corresponding path program 1 times [2024-11-13 16:10:58,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:58,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966690481] [2024-11-13 16:10:58,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:58,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:58,557 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:10:58,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:58,569 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:10:58,727 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 16:10:58,728 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 16:10:58,728 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 16:10:58,729 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 16:10:58,729 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 16:10:58,729 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:10:58,729 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 16:10:58,729 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 16:10:58,729 INFO L132 ssoRankerPreferences]: Filename of dumped script: Narrowing.c_Iteration5_Loop [2024-11-13 16:10:58,729 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 16:10:58,729 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 16:10:58,750 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:10:58,795 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:10:58,801 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:10:58,806 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:10:58,942 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 16:10:58,942 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 16:10:58,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:10:58,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:10:58,948 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:10:58,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-13 16:10:58,950 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 16:10:58,950 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 16:10:58,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-13 16:10:58,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:10:58,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:10:58,991 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:10:58,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-13 16:10:58,996 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 16:10:58,996 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 16:10:59,037 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 16:10:59,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-13 16:10:59,040 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 16:10:59,040 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 16:10:59,041 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 16:10:59,041 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 16:10:59,041 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 16:10:59,041 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:10:59,041 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 16:10:59,041 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 16:10:59,041 INFO L132 ssoRankerPreferences]: Filename of dumped script: Narrowing.c_Iteration5_Loop [2024-11-13 16:10:59,041 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 16:10:59,041 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 16:10:59,043 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:10:59,063 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:10:59,068 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:10:59,072 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:10:59,170 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 16:10:59,174 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 16:10:59,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:10:59,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:10:59,178 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:10:59,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-13 16:10:59,182 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:10:59,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:10:59,202 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:10:59,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:10:59,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:10:59,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:10:59,210 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 16:10:59,210 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:10:59,215 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 16:10:59,223 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 16:10:59,226 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 16:10:59,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:10:59,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:10:59,230 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:10:59,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-13 16:10:59,233 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 16:10:59,234 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 16:10:59,234 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 16:10:59,235 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-13 16:10:59,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-13 16:10:59,258 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 16:10:59,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:10:59,293 INFO L255 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 16:10:59,294 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:10:59,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:10:59,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 16:10:59,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:10:59,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:10:59,415 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 16:10:59,417 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 36 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:10:59,510 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 36 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 71 states and 104 transitions. Complement of second has 7 states. [2024-11-13 16:10:59,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-13 16:10:59,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:10:59,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2024-11-13 16:10:59,525 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 6 letters. [2024-11-13 16:10:59,526 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:10:59,530 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 6 letters. [2024-11-13 16:10:59,530 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:10:59,530 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 12 letters. [2024-11-13 16:10:59,531 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:10:59,531 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 104 transitions. [2024-11-13 16:10:59,537 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 35 [2024-11-13 16:10:59,538 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 66 states and 95 transitions. [2024-11-13 16:10:59,538 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2024-11-13 16:10:59,539 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2024-11-13 16:10:59,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 95 transitions. [2024-11-13 16:10:59,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 16:10:59,539 INFO L218 hiAutomatonCegarLoop]: Abstraction has 66 states and 95 transitions. [2024-11-13 16:10:59,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 95 transitions. [2024-11-13 16:10:59,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 65. [2024-11-13 16:10:59,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 65 states have (on average 1.4461538461538461) internal successors, (94), 64 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:10:59,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 94 transitions. [2024-11-13 16:10:59,554 INFO L240 hiAutomatonCegarLoop]: Abstraction has 65 states and 94 transitions. [2024-11-13 16:10:59,554 INFO L424 stractBuchiCegarLoop]: Abstraction has 65 states and 94 transitions. [2024-11-13 16:10:59,554 INFO L331 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-13 16:10:59,554 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 94 transitions. [2024-11-13 16:10:59,555 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 35 [2024-11-13 16:10:59,555 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:10:59,555 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:10:59,556 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-13 16:10:59,556 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-13 16:10:59,556 INFO L745 eck$LassoCheckResult]: Stem: 345#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 346#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0; 351#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 359#L14 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 360#L14-2 [2024-11-13 16:10:59,556 INFO L747 eck$LassoCheckResult]: Loop: 360#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 389#L17-1 assume !(1 == main_~up~0#1); 387#L20-1 assume !(0 == main_~up~0#1); 384#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 383#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 382#L14 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 360#L14-2 [2024-11-13 16:10:59,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:59,556 INFO L85 PathProgramCache]: Analyzing trace with hash 925766, now seen corresponding path program 1 times [2024-11-13 16:10:59,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:59,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256665953] [2024-11-13 16:10:59,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:59,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:59,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:59,568 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:10:59,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:59,571 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:10:59,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:59,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1514671824, now seen corresponding path program 1 times [2024-11-13 16:10:59,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:59,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300952161] [2024-11-13 16:10:59,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:59,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:59,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:59,584 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:10:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:59,592 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:10:59,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:59,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1588844715, now seen corresponding path program 1 times [2024-11-13 16:10:59,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:59,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691670298] [2024-11-13 16:10:59,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:59,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:59,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:10:59,634 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:10:59,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:10:59,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691670298] [2024-11-13 16:10:59,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691670298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:10:59,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:10:59,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:10:59,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467758168] [2024-11-13 16:10:59,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:10:59,734 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 16:10:59,735 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 16:10:59,735 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 16:10:59,735 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 16:10:59,735 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 16:10:59,735 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:10:59,735 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 16:10:59,735 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 16:10:59,735 INFO L132 ssoRankerPreferences]: Filename of dumped script: Narrowing.c_Iteration6_Loop [2024-11-13 16:10:59,735 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 16:10:59,735 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 16:10:59,737 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:10:59,750 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:10:59,761 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:10:59,766 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:10:59,777 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:10:59,946 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 16:10:59,946 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 16:10:59,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:10:59,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:10:59,953 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:10:59,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-13 16:10:59,957 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 16:10:59,957 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 16:10:59,988 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 16:10:59,988 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 16:11:00,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-13 16:11:00,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:00,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:00,010 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:00,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-13 16:11:00,013 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 16:11:00,013 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 16:11:00,039 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 16:11:00,039 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~range~0#1=1} Honda state: {ULTIMATE.start_main_~range~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 16:11:00,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-13 16:11:00,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:00,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:00,059 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:00,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-13 16:11:00,062 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 16:11:00,063 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 16:11:00,115 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 16:11:00,115 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 16:11:00,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-13 16:11:00,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:00,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:00,136 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:00,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-13 16:11:00,139 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 16:11:00,139 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 16:11:00,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-13 16:11:00,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:00,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:00,186 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:00,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-13 16:11:00,190 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 16:11:00,190 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 16:11:00,247 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 16:11:00,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-13 16:11:00,253 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 16:11:00,253 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 16:11:00,253 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 16:11:00,253 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 16:11:00,253 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 16:11:00,254 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:00,254 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 16:11:00,254 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 16:11:00,254 INFO L132 ssoRankerPreferences]: Filename of dumped script: Narrowing.c_Iteration6_Loop [2024-11-13 16:11:00,254 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 16:11:00,254 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 16:11:00,255 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:00,267 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:00,271 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:00,279 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:00,283 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:00,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-13 16:11:00,497 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 16:11:00,497 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 16:11:00,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:00,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:00,501 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:00,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-13 16:11:00,504 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:00,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:00,520 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:00,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:00,521 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 16:11:00,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:11:00,524 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-13 16:11:00,525 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:00,532 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:00,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-13 16:11:00,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:00,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:00,555 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:00,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-13 16:11:00,559 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:00,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:00,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:00,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:00,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:11:00,581 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:11:00,581 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 16:11:00,587 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:00,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-13 16:11:00,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:00,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:00,611 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:00,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-13 16:11:00,614 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:00,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:00,631 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:00,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:00,631 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 16:11:00,632 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:11:00,634 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-13 16:11:00,634 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:00,640 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:00,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-13 16:11:00,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:00,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:00,661 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:00,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-13 16:11:00,664 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:00,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:00,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:00,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:00,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:11:00,686 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:11:00,686 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 16:11:00,696 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:00,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-13 16:11:00,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:00,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:00,716 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:00,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-13 16:11:00,719 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:00,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:00,733 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:00,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:00,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:00,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:11:00,734 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 16:11:00,734 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:00,739 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:00,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-13 16:11:00,751 INFO L451 LassoAnalysis]: Using template '2-nested'. [2024-11-13 16:11:00,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:00,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:00,752 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:00,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-13 16:11:00,754 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:00,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:00,765 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:00,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:00,766 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 16:11:00,766 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-13 16:11:00,768 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:11:00,768 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:00,772 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:00,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-13 16:11:00,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:00,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:00,790 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:00,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-13 16:11:00,791 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:00,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:00,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:00,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:00,804 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-13 16:11:00,812 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2024-11-13 16:11:00,812 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2024-11-13 16:11:00,821 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:00,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-13 16:11:00,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:00,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:00,844 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:00,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-13 16:11:00,847 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:00,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:00,864 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:00,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:00,864 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 16:11:00,864 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-13 16:11:00,868 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:11:00,868 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:00,874 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:00,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-13 16:11:00,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:00,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:00,897 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:00,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-13 16:11:00,903 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:00,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:00,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:00,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:00,921 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-13 16:11:00,926 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2024-11-13 16:11:00,926 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2024-11-13 16:11:00,934 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:00,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-13 16:11:00,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:00,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:00,958 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:00,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-13 16:11:00,962 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:00,979 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:00,979 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:00,979 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:00,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:00,979 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-13 16:11:00,981 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-13 16:11:00,981 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:00,984 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:01,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-13 16:11:01,003 INFO L451 LassoAnalysis]: Using template '3-nested'. [2024-11-13 16:11:01,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:01,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:01,006 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:01,012 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:01,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-13 16:11:01,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:01,028 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:01,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:01,028 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 16:11:01,028 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2024-11-13 16:11:01,031 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2024-11-13 16:11:01,031 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:01,037 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:01,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-11-13 16:11:01,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:01,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:01,059 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:01,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-13 16:11:01,061 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:01,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:01,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:01,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:01,077 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2024-11-13 16:11:01,081 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2024-11-13 16:11:01,081 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-11-13 16:11:01,090 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:01,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-13 16:11:01,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:01,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:01,108 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:01,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-13 16:11:01,110 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:01,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:01,123 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:01,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:01,123 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 16:11:01,123 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2024-11-13 16:11:01,128 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2024-11-13 16:11:01,128 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:01,136 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:01,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-13 16:11:01,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:01,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:01,159 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:01,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-13 16:11:01,164 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:01,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:01,184 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:01,184 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:01,184 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2024-11-13 16:11:01,193 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2024-11-13 16:11:01,193 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-11-13 16:11:01,204 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:01,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-13 16:11:01,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:01,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:01,226 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:01,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-13 16:11:01,229 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:01,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:01,246 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:01,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:01,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:01,246 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2024-11-13 16:11:01,248 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-13 16:11:01,248 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:01,251 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:01,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-13 16:11:01,269 INFO L451 LassoAnalysis]: Using template '4-nested'. [2024-11-13 16:11:01,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:01,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:01,271 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:01,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-13 16:11:01,273 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:01,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:01,285 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:01,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:01,285 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 16:11:01,285 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2024-11-13 16:11:01,287 INFO L401 nArgumentSynthesizer]: We have 10 Motzkin's Theorem applications. [2024-11-13 16:11:01,287 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:01,292 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:01,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-13 16:11:01,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:01,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:01,313 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:01,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-13 16:11:01,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:01,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:01,331 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:01,331 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:01,331 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2024-11-13 16:11:01,334 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2024-11-13 16:11:01,335 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2024-11-13 16:11:01,344 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:01,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-11-13 16:11:01,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:01,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:01,365 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:01,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-13 16:11:01,369 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:01,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:01,387 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:01,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:01,387 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 16:11:01,387 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2024-11-13 16:11:01,391 INFO L401 nArgumentSynthesizer]: We have 10 Motzkin's Theorem applications. [2024-11-13 16:11:01,391 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:01,399 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:01,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-11-13 16:11:01,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:01,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:01,423 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:01,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-13 16:11:01,427 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:01,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:01,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:01,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:01,446 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2024-11-13 16:11:01,450 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2024-11-13 16:11:01,450 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2024-11-13 16:11:01,460 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:01,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-13 16:11:01,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:01,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:01,483 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:01,486 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:01,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-13 16:11:01,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:01,503 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:01,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:01,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:01,504 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2024-11-13 16:11:01,505 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2024-11-13 16:11:01,505 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:01,508 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:01,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-11-13 16:11:01,528 INFO L451 LassoAnalysis]: Using template '2-phase'. [2024-11-13 16:11:01,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:01,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:01,530 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:01,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-13 16:11:01,533 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:01,547 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2024-11-13 16:11:01,547 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2024-11-13 16:11:01,548 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:01,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:01,548 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 16:11:01,548 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-13 16:11:01,550 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:11:01,550 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:01,556 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:01,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-13 16:11:01,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:01,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:01,572 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:01,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-13 16:11:01,573 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:01,587 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2024-11-13 16:11:01,587 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2024-11-13 16:11:01,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:01,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:01,587 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-13 16:11:01,590 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2024-11-13 16:11:01,590 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2024-11-13 16:11:01,596 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:01,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-11-13 16:11:01,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:01,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:01,615 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:01,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-13 16:11:01,616 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:01,627 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2024-11-13 16:11:01,627 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2024-11-13 16:11:01,627 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:01,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:01,627 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 16:11:01,627 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-13 16:11:01,630 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:11:01,630 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:01,640 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:01,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-11-13 16:11:01,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:01,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:01,661 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:01,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-13 16:11:01,665 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:01,680 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2024-11-13 16:11:01,681 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2024-11-13 16:11:01,681 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:01,681 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:01,681 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-13 16:11:01,688 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2024-11-13 16:11:01,688 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2024-11-13 16:11:01,700 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:01,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-11-13 16:11:01,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:01,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:01,724 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:01,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-13 16:11:01,728 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:01,743 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2024-11-13 16:11:01,743 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2024-11-13 16:11:01,743 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:01,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:01,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:01,743 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-13 16:11:01,744 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-13 16:11:01,744 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:01,756 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:01,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-11-13 16:11:01,774 INFO L451 LassoAnalysis]: Using template '3-phase'. [2024-11-13 16:11:01,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:01,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:01,775 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:01,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-13 16:11:01,777 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:01,789 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2024-11-13 16:11:01,789 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2024-11-13 16:11:01,789 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:01,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:01,789 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 16:11:01,789 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2024-11-13 16:11:01,792 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2024-11-13 16:11:01,792 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:01,802 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:01,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-11-13 16:11:01,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:01,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:01,823 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:01,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-13 16:11:01,825 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:01,838 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2024-11-13 16:11:01,838 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2024-11-13 16:11:01,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:01,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:01,838 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2024-11-13 16:11:01,842 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2024-11-13 16:11:01,842 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-11-13 16:11:01,852 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:01,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-11-13 16:11:01,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:01,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:01,867 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:01,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-13 16:11:01,870 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:01,883 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2024-11-13 16:11:01,883 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2024-11-13 16:11:01,883 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:01,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:01,883 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 16:11:01,883 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2024-11-13 16:11:01,887 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2024-11-13 16:11:01,887 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:01,901 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:01,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-11-13 16:11:01,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:01,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:01,925 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:01,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-11-13 16:11:01,929 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:01,946 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2024-11-13 16:11:01,946 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2024-11-13 16:11:01,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:01,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:01,947 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2024-11-13 16:11:01,950 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2024-11-13 16:11:01,950 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-11-13 16:11:01,960 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:01,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-11-13 16:11:01,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:01,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:01,982 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:01,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-13 16:11:01,989 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 [2024-11-13 16:11:02,005 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2024-11-13 16:11:02,005 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2024-11-13 16:11:02,005 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:02,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:02,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:02,005 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2024-11-13 16:11:02,007 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-13 16:11:02,007 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:02,011 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:02,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-11-13 16:11:02,029 INFO L451 LassoAnalysis]: Using template '4-phase'. [2024-11-13 16:11:02,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:02,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:02,032 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:02,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-11-13 16:11:02,035 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:02,052 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2024-11-13 16:11:02,052 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2024-11-13 16:11:02,052 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:02,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:02,052 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 16:11:02,052 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2024-11-13 16:11:02,056 INFO L401 nArgumentSynthesizer]: We have 10 Motzkin's Theorem applications. [2024-11-13 16:11:02,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:02,070 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:02,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-11-13 16:11:02,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:02,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:02,091 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:02,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-11-13 16:11:02,094 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:02,111 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2024-11-13 16:11:02,111 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2024-11-13 16:11:02,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:02,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:02,111 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2024-11-13 16:11:02,117 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2024-11-13 16:11:02,117 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2024-11-13 16:11:02,130 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:02,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-11-13 16:11:02,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:02,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:02,154 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:02,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-11-13 16:11:02,157 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:02,175 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2024-11-13 16:11:02,175 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2024-11-13 16:11:02,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:02,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:02,175 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 16:11:02,175 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2024-11-13 16:11:02,180 INFO L401 nArgumentSynthesizer]: We have 10 Motzkin's Theorem applications. [2024-11-13 16:11:02,180 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:02,211 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:02,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2024-11-13 16:11:02,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:02,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:02,230 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:02,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-11-13 16:11:02,234 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:02,248 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2024-11-13 16:11:02,248 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2024-11-13 16:11:02,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:02,248 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:02,248 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2024-11-13 16:11:02,254 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2024-11-13 16:11:02,254 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2024-11-13 16:11:02,268 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:02,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2024-11-13 16:11:02,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:02,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:02,291 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:02,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-11-13 16:11:02,294 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:02,312 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2024-11-13 16:11:02,312 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2024-11-13 16:11:02,312 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:02,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:02,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:02,313 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2024-11-13 16:11:02,314 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2024-11-13 16:11:02,315 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:02,321 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:02,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2024-11-13 16:11:02,341 INFO L451 LassoAnalysis]: Using template '2-lex'. [2024-11-13 16:11:02,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:02,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:02,343 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:02,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-11-13 16:11:02,347 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:02,363 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2024-11-13 16:11:02,363 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2024-11-13 16:11:02,363 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:02,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:02,365 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 16:11:02,365 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2024-11-13 16:11:02,368 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2024-11-13 16:11:02,368 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:02,374 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:02,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2024-11-13 16:11:02,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:02,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:02,398 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:02,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-11-13 16:11:02,401 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:02,417 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2024-11-13 16:11:02,418 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2024-11-13 16:11:02,418 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:02,418 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:02,418 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2024-11-13 16:11:02,423 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2024-11-13 16:11:02,423 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-11-13 16:11:02,430 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:02,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2024-11-13 16:11:02,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:02,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:02,454 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:02,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-11-13 16:11:02,457 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:02,474 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2024-11-13 16:11:02,475 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2024-11-13 16:11:02,475 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:02,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:02,475 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 16:11:02,475 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2024-11-13 16:11:02,478 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2024-11-13 16:11:02,478 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:02,487 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:02,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2024-11-13 16:11:02,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:02,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:02,511 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:02,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-11-13 16:11:02,514 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:02,530 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2024-11-13 16:11:02,531 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2024-11-13 16:11:02,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:02,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:02,531 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2024-11-13 16:11:02,537 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2024-11-13 16:11:02,537 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-11-13 16:11:02,544 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:02,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2024-11-13 16:11:02,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:02,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:02,565 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:02,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-11-13 16:11:02,569 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:02,584 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2024-11-13 16:11:02,584 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2024-11-13 16:11:02,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:02,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:02,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:02,584 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2024-11-13 16:11:02,585 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-13 16:11:02,585 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:02,589 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:02,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2024-11-13 16:11:02,607 INFO L451 LassoAnalysis]: Using template '3-lex'. [2024-11-13 16:11:02,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:02,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:02,610 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:02,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-11-13 16:11:02,615 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:02,632 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2024-11-13 16:11:02,632 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2024-11-13 16:11:02,632 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:02,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:02,632 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 16:11:02,632 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2024-11-13 16:11:02,635 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2024-11-13 16:11:02,635 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:02,643 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:02,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2024-11-13 16:11:02,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:02,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:02,665 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:02,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-11-13 16:11:02,669 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:02,685 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2024-11-13 16:11:02,686 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2024-11-13 16:11:02,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:02,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:02,686 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2024-11-13 16:11:02,690 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2024-11-13 16:11:02,690 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2024-11-13 16:11:02,702 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:02,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2024-11-13 16:11:02,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:02,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:02,728 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:02,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2024-11-13 16:11:02,730 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:02,748 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2024-11-13 16:11:02,749 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2024-11-13 16:11:02,749 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:02,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:02,749 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 16:11:02,749 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2024-11-13 16:11:02,753 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2024-11-13 16:11:02,753 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:02,769 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:02,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2024-11-13 16:11:02,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:02,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:02,792 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:02,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2024-11-13 16:11:02,795 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:02,812 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2024-11-13 16:11:02,812 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2024-11-13 16:11:02,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:02,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:02,813 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2024-11-13 16:11:02,819 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2024-11-13 16:11:02,819 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2024-11-13 16:11:02,831 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:02,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2024-11-13 16:11:02,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:02,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:02,854 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:02,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2024-11-13 16:11:02,858 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:02,874 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2024-11-13 16:11:02,875 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2024-11-13 16:11:02,875 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:02,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:02,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:02,875 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2024-11-13 16:11:02,877 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:11:02,877 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:02,883 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:02,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2024-11-13 16:11:02,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:11:02,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:11:02,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:11:02,900 INFO L87 Difference]: Start difference. First operand 65 states and 94 transitions. cyclomatic complexity: 33 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:11:02,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:11:02,916 INFO L93 Difference]: Finished difference Result 49 states and 66 transitions. [2024-11-13 16:11:02,916 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 66 transitions. [2024-11-13 16:11:02,917 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2024-11-13 16:11:02,918 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 47 states and 64 transitions. [2024-11-13 16:11:02,918 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2024-11-13 16:11:02,918 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2024-11-13 16:11:02,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 64 transitions. [2024-11-13 16:11:02,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 16:11:02,918 INFO L218 hiAutomatonCegarLoop]: Abstraction has 47 states and 64 transitions. [2024-11-13 16:11:02,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 64 transitions. [2024-11-13 16:11:02,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 42. [2024-11-13 16:11:02,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.380952380952381) internal successors, (58), 41 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:11:02,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 58 transitions. [2024-11-13 16:11:02,922 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 58 transitions. [2024-11-13 16:11:02,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:11:02,923 INFO L424 stractBuchiCegarLoop]: Abstraction has 42 states and 58 transitions. [2024-11-13 16:11:02,923 INFO L331 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-13 16:11:02,923 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 58 transitions. [2024-11-13 16:11:02,924 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2024-11-13 16:11:02,924 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:11:02,924 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:11:02,925 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-13 16:11:02,925 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-13 16:11:02,925 INFO L745 eck$LassoCheckResult]: Stem: 467#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 468#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0; 479#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 480#L14 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 481#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 488#L17-1 [2024-11-13 16:11:02,925 INFO L747 eck$LassoCheckResult]: Loop: 488#L17-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 489#L20-1 assume !(0 == main_~up~0#1); 490#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 495#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 493#L14 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 491#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 488#L17-1 [2024-11-13 16:11:02,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:02,925 INFO L85 PathProgramCache]: Analyzing trace with hash 28698767, now seen corresponding path program 1 times [2024-11-13 16:11:02,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:02,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833313347] [2024-11-13 16:11:02,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:02,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:02,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:02,934 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:11:02,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:02,941 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:11:02,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:02,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1634880532, now seen corresponding path program 1 times [2024-11-13 16:11:02,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:02,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931626866] [2024-11-13 16:11:02,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:02,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:02,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:02,949 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:11:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:02,955 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:11:02,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:02,957 INFO L85 PathProgramCache]: Analyzing trace with hash -2066804190, now seen corresponding path program 1 times [2024-11-13 16:11:02,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:02,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484926752] [2024-11-13 16:11:02,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:02,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:03,034 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:11:03,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:11:03,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484926752] [2024-11-13 16:11:03,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484926752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:11:03,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:11:03,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:11:03,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769748034] [2024-11-13 16:11:03,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:11:03,112 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 16:11:03,112 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 16:11:03,112 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 16:11:03,112 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 16:11:03,112 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 16:11:03,112 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:03,112 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 16:11:03,112 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 16:11:03,112 INFO L132 ssoRankerPreferences]: Filename of dumped script: Narrowing.c_Iteration7_Loop [2024-11-13 16:11:03,112 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 16:11:03,112 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 16:11:03,113 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:03,127 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:03,131 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:03,137 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:03,142 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:03,246 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 16:11:03,246 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 16:11:03,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:03,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:03,250 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:03,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2024-11-13 16:11:03,253 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 16:11:03,253 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 16:11:03,284 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 16:11:03,284 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~range~0#1=1} Honda state: {ULTIMATE.start_main_~range~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 16:11:03,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2024-11-13 16:11:03,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:03,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:03,300 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:03,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2024-11-13 16:11:03,302 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 16:11:03,302 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 16:11:03,324 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 16:11:03,325 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 16:11:03,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2024-11-13 16:11:03,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:03,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:03,341 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:03,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2024-11-13 16:11:03,343 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 16:11:03,343 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 16:11:03,358 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 16:11:03,358 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=1} Honda state: {ULTIMATE.start_main_~up~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 16:11:03,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2024-11-13 16:11:03,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:03,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:03,383 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:03,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2024-11-13 16:11:03,386 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 16:11:03,386 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 16:11:03,415 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 16:11:03,416 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 16:11:03,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2024-11-13 16:11:03,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:03,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:03,439 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:03,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2024-11-13 16:11:03,443 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 16:11:03,443 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 16:11:03,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2024-11-13 16:11:03,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:03,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:03,482 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:03,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2024-11-13 16:11:03,484 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 16:11:03,484 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 16:11:03,513 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 16:11:03,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2024-11-13 16:11:03,515 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 16:11:03,516 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 16:11:03,516 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 16:11:03,516 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 16:11:03,516 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 16:11:03,516 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:03,516 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 16:11:03,516 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 16:11:03,516 INFO L132 ssoRankerPreferences]: Filename of dumped script: Narrowing.c_Iteration7_Loop [2024-11-13 16:11:03,516 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 16:11:03,516 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 16:11:03,517 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:03,525 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:03,528 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:03,533 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:03,536 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:03,621 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 16:11:03,621 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 16:11:03,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:03,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:03,627 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:03,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2024-11-13 16:11:03,630 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:03,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:03,647 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:03,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:03,647 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 16:11:03,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:11:03,649 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-13 16:11:03,649 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:03,652 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:03,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2024-11-13 16:11:03,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:03,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:03,672 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:03,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2024-11-13 16:11:03,674 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:03,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:03,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:03,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:03,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:11:03,689 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:11:03,689 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 16:11:03,692 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:03,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2024-11-13 16:11:03,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:03,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:03,707 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:03,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2024-11-13 16:11:03,709 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:03,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:03,724 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:03,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:03,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:03,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:11:03,726 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 16:11:03,726 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:03,728 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:03,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2024-11-13 16:11:03,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:03,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:03,743 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:03,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2024-11-13 16:11:03,745 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:03,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:03,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:03,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:03,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:11:03,758 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:11:03,758 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 16:11:03,763 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:03,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2024-11-13 16:11:03,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:03,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:03,786 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:03,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2024-11-13 16:11:03,790 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 [2024-11-13 16:11:03,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:03,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:03,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:03,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:03,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:11:03,807 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 16:11:03,807 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:03,810 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 16:11:03,814 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 16:11:03,814 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 16:11:03,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:03,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:03,818 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:03,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2024-11-13 16:11:03,823 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 16:11:03,824 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 16:11:03,824 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 16:11:03,824 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-13 16:11:03,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2024-11-13 16:11:03,847 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 16:11:03,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:03,881 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 16:11:03,882 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:11:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:03,936 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 16:11:03,937 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:11:03,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2024-11-13 16:11:03,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:11:03,980 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 16:11:03,980 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 58 transitions. cyclomatic complexity: 18 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:11:04,062 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 58 transitions. cyclomatic complexity: 18. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 115 states and 154 transitions. Complement of second has 7 states. [2024-11-13 16:11:04,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-13 16:11:04,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:11:04,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 33 transitions. [2024-11-13 16:11:04,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 33 transitions. Stem has 5 letters. Loop has 6 letters. [2024-11-13 16:11:04,066 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:11:04,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 33 transitions. Stem has 11 letters. Loop has 6 letters. [2024-11-13 16:11:04,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:11:04,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 33 transitions. Stem has 5 letters. Loop has 12 letters. [2024-11-13 16:11:04,069 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:11:04,069 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 115 states and 154 transitions. [2024-11-13 16:11:04,073 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 42 [2024-11-13 16:11:04,074 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 115 states to 109 states and 145 transitions. [2024-11-13 16:11:04,076 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2024-11-13 16:11:04,076 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2024-11-13 16:11:04,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 145 transitions. [2024-11-13 16:11:04,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 16:11:04,076 INFO L218 hiAutomatonCegarLoop]: Abstraction has 109 states and 145 transitions. [2024-11-13 16:11:04,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 145 transitions. [2024-11-13 16:11:04,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 94. [2024-11-13 16:11:04,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 94 states have (on average 1.372340425531915) internal successors, (129), 93 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:11:04,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 129 transitions. [2024-11-13 16:11:04,089 INFO L240 hiAutomatonCegarLoop]: Abstraction has 94 states and 129 transitions. [2024-11-13 16:11:04,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:11:04,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:11:04,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:11:04,090 INFO L87 Difference]: Start difference. First operand 94 states and 129 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:11:04,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:11:04,135 INFO L93 Difference]: Finished difference Result 112 states and 143 transitions. [2024-11-13 16:11:04,135 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 112 states and 143 transitions. [2024-11-13 16:11:04,136 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 50 [2024-11-13 16:11:04,137 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 112 states to 93 states and 119 transitions. [2024-11-13 16:11:04,137 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2024-11-13 16:11:04,137 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2024-11-13 16:11:04,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 119 transitions. [2024-11-13 16:11:04,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 16:11:04,137 INFO L218 hiAutomatonCegarLoop]: Abstraction has 93 states and 119 transitions. [2024-11-13 16:11:04,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states and 119 transitions. [2024-11-13 16:11:04,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 42. [2024-11-13 16:11:04,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 41 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:11:04,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2024-11-13 16:11:04,144 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 56 transitions. [2024-11-13 16:11:04,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:11:04,150 INFO L424 stractBuchiCegarLoop]: Abstraction has 42 states and 56 transitions. [2024-11-13 16:11:04,150 INFO L331 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-13 16:11:04,150 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 56 transitions. [2024-11-13 16:11:04,150 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2024-11-13 16:11:04,150 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:11:04,150 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:11:04,151 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-13 16:11:04,151 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-13 16:11:04,151 INFO L745 eck$LassoCheckResult]: Stem: 889#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 890#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0; 895#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 886#L14 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 917#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 922#L17-1 [2024-11-13 16:11:04,151 INFO L747 eck$LassoCheckResult]: Loop: 922#L17-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 912#L20-1 assume !(0 == main_~up~0#1); 913#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 921#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 926#L14 assume !(0 == main_~i~0#1); 923#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 922#L17-1 [2024-11-13 16:11:04,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:04,151 INFO L85 PathProgramCache]: Analyzing trace with hash 28698767, now seen corresponding path program 2 times [2024-11-13 16:11:04,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:04,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207179816] [2024-11-13 16:11:04,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:04,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:04,161 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:11:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:04,168 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:11:04,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:04,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1634880594, now seen corresponding path program 1 times [2024-11-13 16:11:04,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:04,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213859649] [2024-11-13 16:11:04,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:04,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:04,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:04,177 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:11:04,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:04,187 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:11:04,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:04,188 INFO L85 PathProgramCache]: Analyzing trace with hash -2066804128, now seen corresponding path program 1 times [2024-11-13 16:11:04,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:04,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8435821] [2024-11-13 16:11:04,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:04,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:04,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:04,201 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:11:04,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:04,210 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:11:04,306 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 16:11:04,306 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 16:11:04,306 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 16:11:04,306 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 16:11:04,306 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 16:11:04,307 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:04,307 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 16:11:04,307 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 16:11:04,307 INFO L132 ssoRankerPreferences]: Filename of dumped script: Narrowing.c_Iteration8_Loop [2024-11-13 16:11:04,307 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 16:11:04,307 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 16:11:04,308 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:04,312 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:04,316 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:04,334 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:04,480 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 16:11:04,482 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 16:11:04,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:04,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:04,485 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:04,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2024-11-13 16:11:04,490 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 16:11:04,490 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 16:11:04,513 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 16:11:04,513 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=1} Honda state: {ULTIMATE.start_main_~up~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 16:11:04,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2024-11-13 16:11:04,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:04,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:04,540 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:04,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2024-11-13 16:11:04,543 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 16:11:04,543 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 16:11:04,572 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 16:11:04,572 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 16:11:04,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2024-11-13 16:11:04,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:04,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:04,595 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:04,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2024-11-13 16:11:04,597 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 16:11:04,597 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 16:11:04,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2024-11-13 16:11:04,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:04,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:04,629 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:04,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2024-11-13 16:11:04,630 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 16:11:04,630 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 16:11:04,862 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 16:11:04,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2024-11-13 16:11:04,868 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 16:11:04,868 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 16:11:04,868 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 16:11:04,868 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 16:11:04,868 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 16:11:04,868 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:04,868 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 16:11:04,868 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 16:11:04,868 INFO L132 ssoRankerPreferences]: Filename of dumped script: Narrowing.c_Iteration8_Loop [2024-11-13 16:11:04,868 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 16:11:04,868 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 16:11:04,870 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:04,874 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:04,889 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:04,892 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:05,030 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 16:11:05,030 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 16:11:05,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:05,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:05,036 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:05,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2024-11-13 16:11:05,039 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:05,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:05,056 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:05,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:05,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:05,056 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:11:05,058 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 16:11:05,058 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:05,060 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:05,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2024-11-13 16:11:05,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:05,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:05,078 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:05,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2024-11-13 16:11:05,081 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:05,094 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:05,094 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:05,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:05,094 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 16:11:05,094 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:11:05,096 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-13 16:11:05,096 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:05,100 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 16:11:05,108 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-13 16:11:05,108 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 16:11:05,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:05,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:05,110 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:05,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2024-11-13 16:11:05,111 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 16:11:05,112 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 16:11:05,112 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 16:11:05,112 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~range~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~range~0#1 Supporting invariants [] [2024-11-13 16:11:05,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2024-11-13 16:11:05,125 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 16:11:05,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:05,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 16:11:05,144 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:11:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:05,155 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 16:11:05,156 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:11:05,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:11:05,195 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 16:11:05,195 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 56 transitions. cyclomatic complexity: 16 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:11:05,242 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 56 transitions. cyclomatic complexity: 16. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 91 states and 116 transitions. Complement of second has 7 states. [2024-11-13 16:11:05,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-13 16:11:05,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:11:05,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2024-11-13 16:11:05,245 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 5 letters. Loop has 6 letters. [2024-11-13 16:11:05,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:11:05,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 11 letters. Loop has 6 letters. [2024-11-13 16:11:05,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:11:05,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 5 letters. Loop has 12 letters. [2024-11-13 16:11:05,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:11:05,246 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 91 states and 116 transitions. [2024-11-13 16:11:05,247 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2024-11-13 16:11:05,251 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 91 states to 78 states and 99 transitions. [2024-11-13 16:11:05,251 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2024-11-13 16:11:05,251 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2024-11-13 16:11:05,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 78 states and 99 transitions. [2024-11-13 16:11:05,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 16:11:05,252 INFO L218 hiAutomatonCegarLoop]: Abstraction has 78 states and 99 transitions. [2024-11-13 16:11:05,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states and 99 transitions. [2024-11-13 16:11:05,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 72. [2024-11-13 16:11:05,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 72 states have (on average 1.2916666666666667) internal successors, (93), 71 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:11:05,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 93 transitions. [2024-11-13 16:11:05,259 INFO L240 hiAutomatonCegarLoop]: Abstraction has 72 states and 93 transitions. [2024-11-13 16:11:05,259 INFO L424 stractBuchiCegarLoop]: Abstraction has 72 states and 93 transitions. [2024-11-13 16:11:05,259 INFO L331 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-11-13 16:11:05,259 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states and 93 transitions. [2024-11-13 16:11:05,260 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2024-11-13 16:11:05,260 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:11:05,260 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:11:05,260 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:11:05,260 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-13 16:11:05,260 INFO L745 eck$LassoCheckResult]: Stem: 1079#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1080#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0; 1091#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 1136#L14 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 1141#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 1085#L17-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 1086#L20-1 assume !(0 == main_~up~0#1); 1137#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 1134#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 1092#L14 assume !(0 == main_~i~0#1); 1093#L14-2 assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0; 1103#L17-1 [2024-11-13 16:11:05,260 INFO L747 eck$LassoCheckResult]: Loop: 1103#L17-1 assume !(1 == main_~up~0#1); 1081#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 1082#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 1116#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 1145#L14 assume !(0 == main_~i~0#1); 1105#L14-2 assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0; 1103#L17-1 [2024-11-13 16:11:05,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:05,261 INFO L85 PathProgramCache]: Analyzing trace with hash -2066863712, now seen corresponding path program 1 times [2024-11-13 16:11:05,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:05,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607611478] [2024-11-13 16:11:05,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:05,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:05,329 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:11:05,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:11:05,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607611478] [2024-11-13 16:11:05,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607611478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:11:05,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:11:05,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:11:05,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156101105] [2024-11-13 16:11:05,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:11:05,330 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-13 16:11:05,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:05,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1690291852, now seen corresponding path program 1 times [2024-11-13 16:11:05,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:05,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463309293] [2024-11-13 16:11:05,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:05,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:05,334 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:11:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:05,337 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:11:05,394 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 16:11:05,394 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 16:11:05,394 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 16:11:05,394 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 16:11:05,394 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 16:11:05,394 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:05,394 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 16:11:05,394 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 16:11:05,394 INFO L132 ssoRankerPreferences]: Filename of dumped script: Narrowing.c_Iteration9_Loop [2024-11-13 16:11:05,395 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 16:11:05,395 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 16:11:05,395 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:05,433 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:05,436 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:05,443 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:05,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2024-11-13 16:11:05,528 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 16:11:05,529 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 16:11:05,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:05,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:05,530 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:05,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2024-11-13 16:11:05,532 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 16:11:05,532 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 16:11:05,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2024-11-13 16:11:05,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:05,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:05,558 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:05,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2024-11-13 16:11:05,560 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 16:11:05,560 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 16:11:05,712 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 16:11:05,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2024-11-13 16:11:05,715 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 16:11:05,715 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 16:11:05,715 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 16:11:05,715 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 16:11:05,715 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 16:11:05,715 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:05,715 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 16:11:05,715 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 16:11:05,715 INFO L132 ssoRankerPreferences]: Filename of dumped script: Narrowing.c_Iteration9_Loop [2024-11-13 16:11:05,715 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 16:11:05,715 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 16:11:05,716 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:05,724 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:05,726 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:05,729 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:05,812 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 16:11:05,812 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 16:11:05,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:05,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:05,814 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:05,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2024-11-13 16:11:05,816 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:05,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:05,828 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:05,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:05,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:05,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:11:05,829 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 16:11:05,829 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:05,831 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 16:11:05,834 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 16:11:05,834 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 16:11:05,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:05,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:05,836 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:05,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2024-11-13 16:11:05,837 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 16:11:05,837 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 16:11:05,837 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 16:11:05,837 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-13 16:11:05,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Ended with exit code 0 [2024-11-13 16:11:05,851 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 16:11:05,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:05,869 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 16:11:05,869 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:11:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:05,889 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 16:11:05,889 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:11:05,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:11:05,930 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 16:11:05,931 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 72 states and 93 transitions. cyclomatic complexity: 26 Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2024-11-13 16:11:05,971 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 72 states and 93 transitions. cyclomatic complexity: 26. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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 161 states and 214 transitions. Complement of second has 7 states. [2024-11-13 16:11:05,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-13 16:11:05,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2024-11-13 16:11:05,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2024-11-13 16:11:05,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 11 letters. Loop has 6 letters. [2024-11-13 16:11:05,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:11:05,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 17 letters. Loop has 6 letters. [2024-11-13 16:11:05,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:11:05,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 11 letters. Loop has 12 letters. [2024-11-13 16:11:05,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:11:05,977 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 161 states and 214 transitions. [2024-11-13 16:11:05,982 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 35 [2024-11-13 16:11:05,984 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 161 states to 127 states and 165 transitions. [2024-11-13 16:11:05,984 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2024-11-13 16:11:05,984 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2024-11-13 16:11:05,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 127 states and 165 transitions. [2024-11-13 16:11:05,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 16:11:05,984 INFO L218 hiAutomatonCegarLoop]: Abstraction has 127 states and 165 transitions. [2024-11-13 16:11:05,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states and 165 transitions. [2024-11-13 16:11:05,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 118. [2024-11-13 16:11:05,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 118 states have (on average 1.3220338983050848) internal successors, (156), 117 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:11:05,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 156 transitions. [2024-11-13 16:11:05,989 INFO L240 hiAutomatonCegarLoop]: Abstraction has 118 states and 156 transitions. [2024-11-13 16:11:05,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:11:05,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 16:11:05,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:11:05,990 INFO L87 Difference]: Start difference. First operand 118 states and 156 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:11:06,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:11:06,047 INFO L93 Difference]: Finished difference Result 223 states and 284 transitions. [2024-11-13 16:11:06,048 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 223 states and 284 transitions. [2024-11-13 16:11:06,050 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 80 [2024-11-13 16:11:06,052 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 223 states to 218 states and 276 transitions. [2024-11-13 16:11:06,053 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 124 [2024-11-13 16:11:06,054 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 124 [2024-11-13 16:11:06,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 218 states and 276 transitions. [2024-11-13 16:11:06,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 16:11:06,054 INFO L218 hiAutomatonCegarLoop]: Abstraction has 218 states and 276 transitions. [2024-11-13 16:11:06,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states and 276 transitions. [2024-11-13 16:11:06,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 209. [2024-11-13 16:11:06,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 209 states have (on average 1.277511961722488) internal successors, (267), 208 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:11:06,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 267 transitions. [2024-11-13 16:11:06,067 INFO L240 hiAutomatonCegarLoop]: Abstraction has 209 states and 267 transitions. [2024-11-13 16:11:06,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:11:06,068 INFO L424 stractBuchiCegarLoop]: Abstraction has 209 states and 267 transitions. [2024-11-13 16:11:06,072 INFO L331 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2024-11-13 16:11:06,072 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 209 states and 267 transitions. [2024-11-13 16:11:06,073 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 78 [2024-11-13 16:11:06,074 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:11:06,074 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:11:06,074 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:11:06,074 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-13 16:11:06,074 INFO L745 eck$LassoCheckResult]: Stem: 1733#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1734#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0; 1745#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 1802#L14 assume !(0 == main_~i~0#1); 1796#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 1797#L17-1 assume !(1 == main_~up~0#1); 1863#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 1858#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 1859#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 1936#L14 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 1935#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 1933#L17-1 [2024-11-13 16:11:06,076 INFO L747 eck$LassoCheckResult]: Loop: 1933#L17-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 1932#L20-1 assume !(0 == main_~up~0#1); 1742#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 1743#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 1937#L14 assume !(0 == main_~i~0#1); 1934#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 1933#L17-1 [2024-11-13 16:11:06,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:06,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1474168158, now seen corresponding path program 1 times [2024-11-13 16:11:06,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:06,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825216412] [2024-11-13 16:11:06,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:06,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:06,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:06,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:11:06,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:11:06,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825216412] [2024-11-13 16:11:06,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825216412] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:11:06,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666793665] [2024-11-13 16:11:06,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:06,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:11:06,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:06,123 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:11:06,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2024-11-13 16:11:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:06,159 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 16:11:06,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:11:06,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:11:06,183 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:11:06,219 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:11:06,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666793665] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:11:06,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:11:06,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-13 16:11:06,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905192078] [2024-11-13 16:11:06,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:11:06,220 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-13 16:11:06,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:06,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1634880594, now seen corresponding path program 2 times [2024-11-13 16:11:06,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:06,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519593172] [2024-11-13 16:11:06,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:06,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:06,227 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:11:06,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:06,230 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:11:06,297 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 16:11:06,297 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 16:11:06,297 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 16:11:06,297 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 16:11:06,297 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 16:11:06,298 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:06,298 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 16:11:06,298 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 16:11:06,298 INFO L132 ssoRankerPreferences]: Filename of dumped script: Narrowing.c_Iteration10_Loop [2024-11-13 16:11:06,298 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 16:11:06,298 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 16:11:06,299 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:06,301 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:06,304 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:06,319 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:06,447 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 16:11:06,447 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 16:11:06,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:06,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:06,451 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:06,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2024-11-13 16:11:06,454 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 16:11:06,454 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 16:11:06,475 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 16:11:06,475 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 16:11:06,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Ended with exit code 0 [2024-11-13 16:11:06,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:06,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:06,494 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:06,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2024-11-13 16:11:06,495 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 16:11:06,495 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 16:11:06,514 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 16:11:06,514 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 16:11:06,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Ended with exit code 0 [2024-11-13 16:11:06,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:06,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:06,527 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:06,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2024-11-13 16:11:06,529 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 16:11:06,529 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 16:11:06,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2024-11-13 16:11:06,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:06,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:06,556 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:06,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2024-11-13 16:11:06,557 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 16:11:06,557 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 16:11:06,786 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 16:11:06,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Ended with exit code 0 [2024-11-13 16:11:06,790 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 16:11:06,790 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 16:11:06,790 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 16:11:06,790 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 16:11:06,790 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 16:11:06,790 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:06,790 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 16:11:06,790 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 16:11:06,790 INFO L132 ssoRankerPreferences]: Filename of dumped script: Narrowing.c_Iteration10_Loop [2024-11-13 16:11:06,790 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 16:11:06,790 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 16:11:06,791 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:06,797 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:06,811 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:06,815 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 16:11:06,967 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 16:11:06,967 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 16:11:06,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:06,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:06,971 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:06,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2024-11-13 16:11:06,975 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:06,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:06,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:06,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 16:11:06,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:11:06,993 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 16:11:06,993 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 16:11:06,997 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 16:11:07,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Ended with exit code 0 [2024-11-13 16:11:07,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:07,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:07,018 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:07,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2024-11-13 16:11:07,021 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 16:11:07,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 16:11:07,032 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 16:11:07,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 16:11:07,033 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 16:11:07,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 16:11:07,034 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-13 16:11:07,034 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 16:11:07,039 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 16:11:07,043 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 16:11:07,043 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-13 16:11:07,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:11:07,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:07,046 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:11:07,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2024-11-13 16:11:07,048 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 16:11:07,048 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 16:11:07,048 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 16:11:07,048 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~range~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~range~0#1 Supporting invariants [] [2024-11-13 16:11:07,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Forceful destruction successful, exit code 0 [2024-11-13 16:11:07,063 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 16:11:07,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:07,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Ended with exit code 0 [2024-11-13 16:11:07,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:07,105 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 16:11:07,106 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:11:07,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2024-11-13 16:11:07,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:07,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 16:11:07,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:11:07,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:11:07,189 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 16:11:07,189 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 209 states and 267 transitions. cyclomatic complexity: 73 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) [2024-11-13 16:11:07,237 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 209 states and 267 transitions. cyclomatic complexity: 73. 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 255 states and 317 transitions. Complement of second has 7 states. [2024-11-13 16:11:07,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-13 16:11:07,238 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) [2024-11-13 16:11:07,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2024-11-13 16:11:07,239 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 11 letters. Loop has 6 letters. [2024-11-13 16:11:07,239 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:11:07,239 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 16:11:07,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:07,265 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 16:11:07,266 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:11:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:07,293 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 16:11:07,293 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:11:07,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:11:07,341 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 16:11:07,341 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 209 states and 267 transitions. cyclomatic complexity: 73 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) [2024-11-13 16:11:07,417 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 209 states and 267 transitions. cyclomatic complexity: 73. 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 369 states and 449 transitions. Complement of second has 9 states. [2024-11-13 16:11:07,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-13 16:11:07,422 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) [2024-11-13 16:11:07,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2024-11-13 16:11:07,423 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 11 letters. Loop has 6 letters. [2024-11-13 16:11:07,423 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:11:07,423 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 16:11:07,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:07,445 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 16:11:07,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:11:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:07,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 16:11:07,469 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:11:07,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:11:07,514 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 16:11:07,514 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 209 states and 267 transitions. cyclomatic complexity: 73 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) [2024-11-13 16:11:07,563 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 209 states and 267 transitions. cyclomatic complexity: 73. 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 320 states and 401 transitions. Complement of second has 8 states. [2024-11-13 16:11:07,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-13 16:11:07,567 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) [2024-11-13 16:11:07,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2024-11-13 16:11:07,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 11 letters. Loop has 6 letters. [2024-11-13 16:11:07,567 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:11:07,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 17 letters. Loop has 6 letters. [2024-11-13 16:11:07,567 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:11:07,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 11 letters. Loop has 12 letters. [2024-11-13 16:11:07,568 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 16:11:07,568 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 320 states and 401 transitions. [2024-11-13 16:11:07,576 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 76 [2024-11-13 16:11:07,579 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 320 states to 237 states and 299 transitions. [2024-11-13 16:11:07,579 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 69 [2024-11-13 16:11:07,580 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 84 [2024-11-13 16:11:07,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 237 states and 299 transitions. [2024-11-13 16:11:07,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 16:11:07,581 INFO L218 hiAutomatonCegarLoop]: Abstraction has 237 states and 299 transitions. [2024-11-13 16:11:07,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states and 299 transitions. [2024-11-13 16:11:07,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 175. [2024-11-13 16:11:07,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 175 states have (on average 1.3085714285714285) internal successors, (229), 174 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:11:07,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 229 transitions. [2024-11-13 16:11:07,591 INFO L240 hiAutomatonCegarLoop]: Abstraction has 175 states and 229 transitions. [2024-11-13 16:11:07,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:11:07,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:11:07,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:11:07,591 INFO L87 Difference]: Start difference. First operand 175 states and 229 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:11:07,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:11:07,729 INFO L93 Difference]: Finished difference Result 387 states and 490 transitions. [2024-11-13 16:11:07,729 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 387 states and 490 transitions. [2024-11-13 16:11:07,733 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 86 [2024-11-13 16:11:07,738 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 387 states to 371 states and 472 transitions. [2024-11-13 16:11:07,738 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 123 [2024-11-13 16:11:07,739 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 123 [2024-11-13 16:11:07,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 371 states and 472 transitions. [2024-11-13 16:11:07,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 16:11:07,739 INFO L218 hiAutomatonCegarLoop]: Abstraction has 371 states and 472 transitions. [2024-11-13 16:11:07,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states and 472 transitions. [2024-11-13 16:11:07,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 305. [2024-11-13 16:11:07,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 305 states have (on average 1.2819672131147541) internal successors, (391), 304 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:11:07,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 391 transitions. [2024-11-13 16:11:07,754 INFO L240 hiAutomatonCegarLoop]: Abstraction has 305 states and 391 transitions. [2024-11-13 16:11:07,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:11:07,756 INFO L424 stractBuchiCegarLoop]: Abstraction has 305 states and 391 transitions. [2024-11-13 16:11:07,756 INFO L331 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2024-11-13 16:11:07,757 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 305 states and 391 transitions. [2024-11-13 16:11:07,760 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 83 [2024-11-13 16:11:07,761 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:11:07,761 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:11:07,761 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-13 16:11:07,763 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 4, 3, 3, 2, 2, 2, 2, 1, 1] [2024-11-13 16:11:07,764 INFO L745 eck$LassoCheckResult]: Stem: 3717#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3718#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0; 3729#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 3869#L14 assume !(0 == main_~i~0#1); 3865#L14-2 assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0; 3856#L17-1 assume !(1 == main_~up~0#1); 3863#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 3861#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 3849#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 3858#L14 assume !(0 == main_~i~0#1); 3855#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 3853#L17-1 assume !(1 == main_~up~0#1); 3851#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 3847#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 3845#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 3839#L14 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 3837#L14-2 [2024-11-13 16:11:07,764 INFO L747 eck$LassoCheckResult]: Loop: 3837#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 3836#L17-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3835#L20-1 assume !(0 == main_~up~0#1); 3834#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 3833#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 3830#L14 assume !(0 == main_~i~0#1); 3829#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 3827#L17-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3825#L20-1 assume !(0 == main_~up~0#1); 3822#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 3823#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 3831#L14 assume !(0 == main_~i~0#1); 3832#L14-2 assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0; 3740#L17-1 assume !(1 == main_~up~0#1); 3719#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 3720#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 3727#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 3742#L14 assume !(0 == main_~i~0#1); 3739#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 3741#L17-1 assume !(1 == main_~up~0#1); 3812#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 3810#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 3811#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 3838#L14 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 3837#L14-2 [2024-11-13 16:11:07,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:07,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1878928146, now seen corresponding path program 1 times [2024-11-13 16:11:07,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:07,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709352183] [2024-11-13 16:11:07,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:07,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:07,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:07,857 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:11:07,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:11:07,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709352183] [2024-11-13 16:11:07,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709352183] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:11:07,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735245671] [2024-11-13 16:11:07,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:07,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:11:07,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:07,860 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:11:07,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2024-11-13 16:11:07,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:07,902 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 16:11:07,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:11:07,941 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:11:07,941 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:11:08,015 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:11:08,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735245671] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:11:08,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:11:08,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-13 16:11:08,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306245051] [2024-11-13 16:11:08,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:11:08,017 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-13 16:11:08,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:08,017 INFO L85 PathProgramCache]: Analyzing trace with hash 460042885, now seen corresponding path program 1 times [2024-11-13 16:11:08,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:08,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376951426] [2024-11-13 16:11:08,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:08,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:08,267 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:11:08,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:11:08,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376951426] [2024-11-13 16:11:08,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376951426] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:11:08,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910102770] [2024-11-13 16:11:08,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:08,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:11:08,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:08,271 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:11:08,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2024-11-13 16:11:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:08,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 16:11:08,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:11:08,409 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 28 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 16:11:08,410 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:11:08,457 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 28 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 16:11:08,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910102770] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:11:08,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:11:08,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 14 [2024-11-13 16:11:08,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316152584] [2024-11-13 16:11:08,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:11:08,458 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-13 16:11:08,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:11:08,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 16:11:08,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:11:08,459 INFO L87 Difference]: Start difference. First operand 305 states and 391 transitions. cyclomatic complexity: 104 Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:11:08,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:11:08,828 INFO L93 Difference]: Finished difference Result 945 states and 1181 transitions. [2024-11-13 16:11:08,829 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 945 states and 1181 transitions. [2024-11-13 16:11:08,837 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 274 [2024-11-13 16:11:08,843 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 945 states to 911 states and 1144 transitions. [2024-11-13 16:11:08,843 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 336 [2024-11-13 16:11:08,844 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 336 [2024-11-13 16:11:08,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 911 states and 1144 transitions. [2024-11-13 16:11:08,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 16:11:08,845 INFO L218 hiAutomatonCegarLoop]: Abstraction has 911 states and 1144 transitions. [2024-11-13 16:11:08,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states and 1144 transitions. [2024-11-13 16:11:08,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 549. [2024-11-13 16:11:08,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 549 states have (on average 1.2805100182149363) internal successors, (703), 548 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:11:08,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 703 transitions. [2024-11-13 16:11:08,860 INFO L240 hiAutomatonCegarLoop]: Abstraction has 549 states and 703 transitions. [2024-11-13 16:11:08,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-13 16:11:08,861 INFO L424 stractBuchiCegarLoop]: Abstraction has 549 states and 703 transitions. [2024-11-13 16:11:08,861 INFO L331 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2024-11-13 16:11:08,861 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 549 states and 703 transitions. [2024-11-13 16:11:08,865 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 177 [2024-11-13 16:11:08,865 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:11:08,865 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:11:08,866 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 5, 5, 5, 3, 3, 3, 2, 1, 1, 1] [2024-11-13 16:11:08,866 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:11:08,867 INFO L745 eck$LassoCheckResult]: Stem: 5244#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 5245#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0; 5250#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 5508#L14 assume !(0 == main_~i~0#1); 5506#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 5505#L17-1 assume !(1 == main_~up~0#1); 5504#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 5502#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 5499#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 5497#L14 assume !(0 == main_~i~0#1); 5494#L14-2 assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0; 5492#L17-1 assume !(1 == main_~up~0#1); 5490#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 5488#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 5486#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 5485#L14 assume !(0 == main_~i~0#1); 5483#L14-2 assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0; 5457#L17-1 assume !(1 == main_~up~0#1); 5481#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 5479#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 5475#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 5460#L14 assume !(0 == main_~i~0#1); 5456#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 5455#L17-1 assume !(1 == main_~up~0#1); 5452#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 5447#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 5433#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 5382#L14 assume !(0 == main_~i~0#1); 5379#L14-2 assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0; 5369#L17-1 assume !(1 == main_~up~0#1); 5366#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 5364#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 5350#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 5362#L14 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 5360#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 5322#L17-1 [2024-11-13 16:11:08,867 INFO L747 eck$LassoCheckResult]: Loop: 5322#L17-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 5358#L20-1 assume !(0 == main_~up~0#1); 5357#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 5356#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 5328#L14 assume !(0 == main_~i~0#1); 5323#L14-2 assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0; 5279#L17-1 assume !(1 == main_~up~0#1); 5285#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 5284#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 5272#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 5341#L14 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 5321#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 5322#L17-1 [2024-11-13 16:11:08,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:08,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1198142926, now seen corresponding path program 1 times [2024-11-13 16:11:08,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:08,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934243806] [2024-11-13 16:11:08,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:08,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:08,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:08,928 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-13 16:11:08,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:11:08,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934243806] [2024-11-13 16:11:08,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934243806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:11:08,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:11:08,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:11:08,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426471093] [2024-11-13 16:11:08,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:11:08,930 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-13 16:11:08,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:08,930 INFO L85 PathProgramCache]: Analyzing trace with hash 357917535, now seen corresponding path program 2 times [2024-11-13 16:11:08,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:08,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024610895] [2024-11-13 16:11:08,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:08,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:08,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:08,938 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:11:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:08,946 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:11:09,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:11:09,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:11:09,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:11:09,024 INFO L87 Difference]: Start difference. First operand 549 states and 703 transitions. cyclomatic complexity: 174 Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:11:09,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:11:09,064 INFO L93 Difference]: Finished difference Result 537 states and 632 transitions. [2024-11-13 16:11:09,064 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 537 states and 632 transitions. [2024-11-13 16:11:09,069 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 177 [2024-11-13 16:11:09,072 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 537 states to 524 states and 614 transitions. [2024-11-13 16:11:09,072 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 179 [2024-11-13 16:11:09,073 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 179 [2024-11-13 16:11:09,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 524 states and 614 transitions. [2024-11-13 16:11:09,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 16:11:09,073 INFO L218 hiAutomatonCegarLoop]: Abstraction has 524 states and 614 transitions. [2024-11-13 16:11:09,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states and 614 transitions. [2024-11-13 16:11:09,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 508. [2024-11-13 16:11:09,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 508 states have (on average 1.1771653543307086) internal successors, (598), 507 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:11:09,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 598 transitions. [2024-11-13 16:11:09,086 INFO L240 hiAutomatonCegarLoop]: Abstraction has 508 states and 598 transitions. [2024-11-13 16:11:09,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:11:09,087 INFO L424 stractBuchiCegarLoop]: Abstraction has 508 states and 598 transitions. [2024-11-13 16:11:09,087 INFO L331 stractBuchiCegarLoop]: ======== Iteration 13 ============ [2024-11-13 16:11:09,087 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 508 states and 598 transitions. [2024-11-13 16:11:09,091 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 176 [2024-11-13 16:11:09,091 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:11:09,091 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:11:09,092 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 6, 6, 6, 5, 3, 3, 1, 1, 1, 1] [2024-11-13 16:11:09,093 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:11:09,093 INFO L745 eck$LassoCheckResult]: Stem: 6337#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 6338#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0; 6349#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 6543#L14 assume !(0 == main_~i~0#1); 6544#L14-2 assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0; 6665#L17-1 assume !(1 == main_~up~0#1); 6663#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 6661#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 6659#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 6657#L14 assume !(0 == main_~i~0#1); 6655#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 6653#L17-1 assume !(1 == main_~up~0#1); 6651#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 6649#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 6600#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 6799#L14 assume !(0 == main_~i~0#1); 6796#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 6793#L17-1 assume !(1 == main_~up~0#1); 6790#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 6344#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 6345#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 6688#L14 assume !(0 == main_~i~0#1); 6687#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 6348#L17-1 assume !(1 == main_~up~0#1); 6341#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 6342#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 6783#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 6779#L14 assume !(0 == main_~i~0#1); 6775#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 6771#L17-1 assume !(1 == main_~up~0#1); 6770#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 6769#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 6690#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 6691#L14 assume !(0 == main_~i~0#1); 6708#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 6705#L17-1 assume !(1 == main_~up~0#1); 6702#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 6695#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 6696#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 6824#L14 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 6822#L14-2 [2024-11-13 16:11:09,093 INFO L747 eck$LassoCheckResult]: Loop: 6822#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 6820#L17-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 6819#L20-1 assume !(0 == main_~up~0#1); 6817#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 6818#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 6823#L14 assume !(0 == main_~i~0#1); 6780#L14-2 assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0; 6776#L17-1 assume !(1 == main_~up~0#1); 6772#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 6697#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 6693#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 6826#L14 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 6822#L14-2 [2024-11-13 16:11:09,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:09,094 INFO L85 PathProgramCache]: Analyzing trace with hash 990473140, now seen corresponding path program 2 times [2024-11-13 16:11:09,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:09,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234256123] [2024-11-13 16:11:09,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:09,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:09,215 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 16:11:09,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:11:09,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234256123] [2024-11-13 16:11:09,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234256123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:11:09,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:11:09,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 16:11:09,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975536414] [2024-11-13 16:11:09,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:11:09,217 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-13 16:11:09,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:09,217 INFO L85 PathProgramCache]: Analyzing trace with hash 2022702435, now seen corresponding path program 3 times [2024-11-13 16:11:09,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:09,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565100065] [2024-11-13 16:11:09,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:09,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:09,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:09,223 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:11:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:09,228 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:11:09,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:11:09,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:11:09,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:11:09,293 INFO L87 Difference]: Start difference. First operand 508 states and 598 transitions. cyclomatic complexity: 110 Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:11:09,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:11:09,356 INFO L93 Difference]: Finished difference Result 565 states and 627 transitions. [2024-11-13 16:11:09,356 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 565 states and 627 transitions. [2024-11-13 16:11:09,361 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 133 [2024-11-13 16:11:09,364 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 565 states to 558 states and 620 transitions. [2024-11-13 16:11:09,365 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 156 [2024-11-13 16:11:09,365 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 156 [2024-11-13 16:11:09,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 558 states and 620 transitions. [2024-11-13 16:11:09,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 16:11:09,365 INFO L218 hiAutomatonCegarLoop]: Abstraction has 558 states and 620 transitions. [2024-11-13 16:11:09,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states and 620 transitions. [2024-11-13 16:11:09,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 546. [2024-11-13 16:11:09,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 546 states have (on average 1.1117216117216118) internal successors, (607), 545 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:11:09,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 607 transitions. [2024-11-13 16:11:09,378 INFO L240 hiAutomatonCegarLoop]: Abstraction has 546 states and 607 transitions. [2024-11-13 16:11:09,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:11:09,379 INFO L424 stractBuchiCegarLoop]: Abstraction has 546 states and 607 transitions. [2024-11-13 16:11:09,379 INFO L331 stractBuchiCegarLoop]: ======== Iteration 14 ============ [2024-11-13 16:11:09,379 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 546 states and 607 transitions. [2024-11-13 16:11:09,383 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 132 [2024-11-13 16:11:09,383 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:11:09,383 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:11:09,384 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1] [2024-11-13 16:11:09,384 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:11:09,385 INFO L745 eck$LassoCheckResult]: Stem: 7419#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 7420#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0; 7428#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 7548#L14 assume !(0 == main_~i~0#1); 7545#L14-2 assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0; 7546#L17-1 assume !(1 == main_~up~0#1); 7745#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 7741#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 7738#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 7734#L14 assume !(0 == main_~i~0#1); 7731#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 7727#L17-1 assume !(1 == main_~up~0#1); 7722#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 7718#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 7715#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 7710#L14 assume !(0 == main_~i~0#1); 7707#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 7706#L17-1 assume !(1 == main_~up~0#1); 7702#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 7697#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 7692#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 7687#L14 assume !(0 == main_~i~0#1); 7683#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 7679#L17-1 assume !(1 == main_~up~0#1); 7675#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 7670#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 7666#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 7662#L14 assume !(0 == main_~i~0#1); 7658#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 7655#L17-1 assume !(1 == main_~up~0#1); 7651#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 7647#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 7621#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 7636#L14 assume !(0 == main_~i~0#1); 7633#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 7630#L17-1 assume !(1 == main_~up~0#1); 7627#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 7619#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 7620#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 7448#L14 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 7447#L14-2 [2024-11-13 16:11:09,385 INFO L747 eck$LassoCheckResult]: Loop: 7447#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 7445#L17-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 7446#L20-1 assume !(0 == main_~up~0#1); 7645#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 7641#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 7638#L14 assume !(0 == main_~i~0#1); 7635#L14-2 assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0; 7632#L17-1 assume !(1 == main_~up~0#1); 7629#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 7626#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 7613#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 7614#L14 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 7447#L14-2 [2024-11-13 16:11:09,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:09,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1847634992, now seen corresponding path program 3 times [2024-11-13 16:11:09,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:09,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942389536] [2024-11-13 16:11:09,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:09,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:09,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:09,542 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:11:09,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:11:09,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942389536] [2024-11-13 16:11:09,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942389536] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:11:09,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419540775] [2024-11-13 16:11:09,542 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 16:11:09,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:11:09,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:09,545 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:11:09,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2024-11-13 16:11:09,584 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-13 16:11:09,584 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 16:11:09,586 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 16:11:09,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:11:09,678 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 16:11:09,678 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:11:09,828 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 16:11:09,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419540775] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:11:09,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:11:09,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 17 [2024-11-13 16:11:09,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155973470] [2024-11-13 16:11:09,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:11:09,829 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-13 16:11:09,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:09,830 INFO L85 PathProgramCache]: Analyzing trace with hash 2022702435, now seen corresponding path program 4 times [2024-11-13 16:11:09,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:09,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489097671] [2024-11-13 16:11:09,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:09,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:09,834 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:11:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:09,839 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:11:09,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:11:09,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-13 16:11:09,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=192, Unknown=0, NotChecked=0, Total=306 [2024-11-13 16:11:09,908 INFO L87 Difference]: Start difference. First operand 546 states and 607 transitions. cyclomatic complexity: 84 Second operand has 18 states, 17 states have (on average 5.529411764705882) internal successors, (94), 18 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:11:10,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:11:10,743 INFO L93 Difference]: Finished difference Result 2568 states and 2723 transitions. [2024-11-13 16:11:10,743 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2568 states and 2723 transitions. [2024-11-13 16:11:10,761 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 632 [2024-11-13 16:11:10,789 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2568 states to 2426 states and 2571 transitions. [2024-11-13 16:11:10,789 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 818 [2024-11-13 16:11:10,790 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 818 [2024-11-13 16:11:10,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2426 states and 2571 transitions. [2024-11-13 16:11:10,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 16:11:10,790 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2426 states and 2571 transitions. [2024-11-13 16:11:10,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2426 states and 2571 transitions. [2024-11-13 16:11:10,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2426 to 1928. [2024-11-13 16:11:10,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1928 states, 1928 states have (on average 1.0674273858921162) internal successors, (2058), 1927 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:11:10,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1928 states to 1928 states and 2058 transitions. [2024-11-13 16:11:10,829 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1928 states and 2058 transitions. [2024-11-13 16:11:10,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-13 16:11:10,830 INFO L424 stractBuchiCegarLoop]: Abstraction has 1928 states and 2058 transitions. [2024-11-13 16:11:10,830 INFO L331 stractBuchiCegarLoop]: ======== Iteration 15 ============ [2024-11-13 16:11:10,830 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1928 states and 2058 transitions. [2024-11-13 16:11:10,842 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 390 [2024-11-13 16:11:10,842 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:11:10,842 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:11:10,843 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [14, 13, 13, 13, 12, 12, 1, 1, 1, 1, 1] [2024-11-13 16:11:10,843 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:11:10,844 INFO L745 eck$LassoCheckResult]: Stem: 10862#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 10863#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0; 10868#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 11012#L14 assume !(0 == main_~i~0#1); 11010#L14-2 assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0; 11011#L17-1 assume !(1 == main_~up~0#1); 11165#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 11164#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 11163#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 11162#L14 assume !(0 == main_~i~0#1); 11161#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 11160#L17-1 assume !(1 == main_~up~0#1); 11159#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 11157#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 11156#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 11155#L14 assume !(0 == main_~i~0#1); 11154#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 11153#L17-1 assume !(1 == main_~up~0#1); 11152#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 11150#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 11149#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 11148#L14 assume !(0 == main_~i~0#1); 11147#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 11146#L17-1 assume !(1 == main_~up~0#1); 11145#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 11143#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 11142#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 11141#L14 assume !(0 == main_~i~0#1); 11140#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 11139#L17-1 assume !(1 == main_~up~0#1); 11138#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 11136#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 11135#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 11134#L14 assume !(0 == main_~i~0#1); 11133#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 11132#L17-1 assume !(1 == main_~up~0#1); 11131#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 11129#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 11128#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 11127#L14 assume !(0 == main_~i~0#1); 11126#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 11125#L17-1 assume !(1 == main_~up~0#1); 11124#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 11122#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 11121#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 11120#L14 assume !(0 == main_~i~0#1); 11119#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 11118#L17-1 assume !(1 == main_~up~0#1); 11117#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 11115#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 11114#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 11113#L14 assume !(0 == main_~i~0#1); 11112#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 11111#L17-1 assume !(1 == main_~up~0#1); 11110#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 11108#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 11107#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 11106#L14 assume !(0 == main_~i~0#1); 11105#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 11104#L17-1 assume !(1 == main_~up~0#1); 11103#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 11101#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 11100#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 11099#L14 assume !(0 == main_~i~0#1); 11098#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 11097#L17-1 assume !(1 == main_~up~0#1); 11096#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 11094#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 11093#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 11092#L14 assume !(0 == main_~i~0#1); 11091#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 11090#L17-1 assume !(1 == main_~up~0#1); 11089#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 11088#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 11034#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 11083#L14 assume !(0 == main_~i~0#1); 11069#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 11065#L17-1 assume !(1 == main_~up~0#1); 11040#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 11032#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 11033#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 10891#L14 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 10890#L14-2 [2024-11-13 16:11:10,844 INFO L747 eck$LassoCheckResult]: Loop: 10890#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 10888#L17-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 10889#L20-1 assume !(0 == main_~up~0#1); 11048#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 11047#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 11045#L14 assume !(0 == main_~i~0#1); 11044#L14-2 assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0; 11043#L17-1 assume !(1 == main_~up~0#1); 11042#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 11039#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 11029#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 11030#L14 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 10890#L14-2 [2024-11-13 16:11:10,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:10,844 INFO L85 PathProgramCache]: Analyzing trace with hash -913005273, now seen corresponding path program 4 times [2024-11-13 16:11:10,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:10,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399406582] [2024-11-13 16:11:10,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:10,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:11,280 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 494 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:11:11,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:11:11,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399406582] [2024-11-13 16:11:11,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399406582] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:11:11,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777364315] [2024-11-13 16:11:11,280 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-13 16:11:11,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:11:11,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:11:11,283 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:11:11,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2024-11-13 16:11:11,347 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-13 16:11:11,347 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 16:11:11,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 16:11:11,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:11:11,519 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 494 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:11:11,519 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:11:11,892 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 494 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:11:11,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777364315] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:11:11,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:11:11,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 24 [2024-11-13 16:11:11,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774933407] [2024-11-13 16:11:11,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:11:11,894 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-13 16:11:11,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:11,894 INFO L85 PathProgramCache]: Analyzing trace with hash 2022702435, now seen corresponding path program 5 times [2024-11-13 16:11:11,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:11,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771537529] [2024-11-13 16:11:11,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:11,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:11,899 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:11:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:11,903 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:11:11,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:11:11,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-13 16:11:11,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=360, Unknown=0, NotChecked=0, Total=600 [2024-11-13 16:11:11,991 INFO L87 Difference]: Start difference. First operand 1928 states and 2058 transitions. cyclomatic complexity: 172 Second operand has 25 states, 24 states have (on average 5.458333333333333) internal successors, (131), 25 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:11:13,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:11:13,651 INFO L93 Difference]: Finished difference Result 6018 states and 6332 transitions. [2024-11-13 16:11:13,651 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6018 states and 6332 transitions. [2024-11-13 16:11:13,689 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 1451 [2024-11-13 16:11:13,714 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6018 states to 5864 states and 6164 transitions. [2024-11-13 16:11:13,714 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2221 [2024-11-13 16:11:13,717 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2221 [2024-11-13 16:11:13,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5864 states and 6164 transitions. [2024-11-13 16:11:13,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 16:11:13,717 INFO L218 hiAutomatonCegarLoop]: Abstraction has 5864 states and 6164 transitions. [2024-11-13 16:11:13,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5864 states and 6164 transitions. [2024-11-13 16:11:13,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5864 to 2266. [2024-11-13 16:11:13,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2266 states, 2266 states have (on average 1.057811120917917) internal successors, (2397), 2265 states have internal predecessors, (2397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:11:13,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2266 states to 2266 states and 2397 transitions. [2024-11-13 16:11:13,776 INFO L240 hiAutomatonCegarLoop]: Abstraction has 2266 states and 2397 transitions. [2024-11-13 16:11:13,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2024-11-13 16:11:13,777 INFO L424 stractBuchiCegarLoop]: Abstraction has 2266 states and 2397 transitions. [2024-11-13 16:11:13,777 INFO L331 stractBuchiCegarLoop]: ======== Iteration 16 ============ [2024-11-13 16:11:13,777 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2266 states and 2397 transitions. [2024-11-13 16:11:13,788 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 488 [2024-11-13 16:11:13,789 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:11:13,789 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:11:13,791 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [21, 20, 20, 20, 19, 19, 1, 1, 1, 1, 1] [2024-11-13 16:11:13,791 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:11:13,793 INFO L745 eck$LassoCheckResult]: Stem: 19438#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 19439#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~range~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~range~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~range~0#1 := 20;main_~up~0#1 := 0; 19448#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 19690#L14 assume !(0 == main_~i~0#1); 19688#L14-2 assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0; 19689#L17-1 assume !(1 == main_~up~0#1); 20410#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 20409#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 20408#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 20407#L14 assume !(0 == main_~i~0#1); 20406#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 20405#L17-1 assume !(1 == main_~up~0#1); 20404#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 20402#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 20401#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 20400#L14 assume !(0 == main_~i~0#1); 20399#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 20398#L17-1 assume !(1 == main_~up~0#1); 20397#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 20395#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 20394#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 20393#L14 assume !(0 == main_~i~0#1); 20392#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 20391#L17-1 assume !(1 == main_~up~0#1); 20390#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 20388#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 20387#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 20386#L14 assume !(0 == main_~i~0#1); 20385#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 20384#L17-1 assume !(1 == main_~up~0#1); 20383#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 20381#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 20380#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 20379#L14 assume !(0 == main_~i~0#1); 20378#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 20377#L17-1 assume !(1 == main_~up~0#1); 20376#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 20374#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 20373#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 20372#L14 assume !(0 == main_~i~0#1); 20371#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 20370#L17-1 assume !(1 == main_~up~0#1); 20369#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 20367#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 20366#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 20365#L14 assume !(0 == main_~i~0#1); 20364#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 20363#L17-1 assume !(1 == main_~up~0#1); 20362#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 20360#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 20359#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 20358#L14 assume !(0 == main_~i~0#1); 20357#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 20356#L17-1 assume !(1 == main_~up~0#1); 20355#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 20353#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 20352#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 20351#L14 assume !(0 == main_~i~0#1); 20350#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 20349#L17-1 assume !(1 == main_~up~0#1); 20348#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 20346#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 20345#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 20344#L14 assume !(0 == main_~i~0#1); 20343#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 20342#L17-1 assume !(1 == main_~up~0#1); 20341#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 20339#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 20338#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 20337#L14 assume !(0 == main_~i~0#1); 20336#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 20335#L17-1 assume !(1 == main_~up~0#1); 20334#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 20332#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 20331#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 20330#L14 assume !(0 == main_~i~0#1); 20329#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 20328#L17-1 assume !(1 == main_~up~0#1); 20327#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 20325#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 20324#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 20323#L14 assume !(0 == main_~i~0#1); 20322#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 20321#L17-1 assume !(1 == main_~up~0#1); 20320#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 20318#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 20317#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 20316#L14 assume !(0 == main_~i~0#1); 20315#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 20314#L17-1 assume !(1 == main_~up~0#1); 20313#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 20311#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 20310#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 20309#L14 assume !(0 == main_~i~0#1); 20308#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 20307#L17-1 assume !(1 == main_~up~0#1); 20306#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 20304#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 20303#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 20302#L14 assume !(0 == main_~i~0#1); 20301#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 20300#L17-1 assume !(1 == main_~up~0#1); 20299#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 20297#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 20296#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 20295#L14 assume !(0 == main_~i~0#1); 20294#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 20293#L17-1 assume !(1 == main_~up~0#1); 20292#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 20290#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 20289#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 20288#L14 assume !(0 == main_~i~0#1); 20287#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 20286#L17-1 assume !(1 == main_~up~0#1); 20285#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 20284#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 20141#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 20233#L14 assume !(0 == main_~i~0#1); 20153#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 20151#L17-1 assume !(1 == main_~up~0#1); 20149#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 20139#L23-1 assume main_~i~0#1 == main_~range~0#1 - 2;main_~range~0#1 := main_~range~0#1 - 1; 20140#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 20181#L14 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 19471#L14-2 [2024-11-13 16:11:13,793 INFO L747 eck$LassoCheckResult]: Loop: 19471#L14-2 assume !(main_~i~0#1 == main_~range~0#1); 20177#L17-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 20174#L20-1 assume !(0 == main_~up~0#1); 20171#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 20169#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 20166#L14 assume !(0 == main_~i~0#1); 20164#L14-2 assume main_~i~0#1 == main_~range~0#1;main_~up~0#1 := 0; 20162#L17-1 assume !(1 == main_~up~0#1); 20160#L20-1 assume 0 == main_~up~0#1;main_~i~0#1 := main_~i~0#1 - 1; 20157#L23-1 assume !(main_~i~0#1 == main_~range~0#1 - 2); 20137#L26-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= main_~range~0#1); 20154#L14 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 19471#L14-2 [2024-11-13 16:11:13,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:13,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1162577570, now seen corresponding path program 5 times [2024-11-13 16:11:13,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:13,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745945234] [2024-11-13 16:11:13,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:13,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:13,828 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:11:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:13,871 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:11:13,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:13,873 INFO L85 PathProgramCache]: Analyzing trace with hash 2022702435, now seen corresponding path program 6 times [2024-11-13 16:11:13,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:13,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322741549] [2024-11-13 16:11:13,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:13,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:13,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:13,877 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:11:13,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:13,881 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:11:13,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:13,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1492144960, now seen corresponding path program 1 times [2024-11-13 16:11:13,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:13,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447831781] [2024-11-13 16:11:13,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:13,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:13,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:13,918 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:11:13,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:13,958 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:11:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:15,421 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:11:15,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:15,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 04:11:15 BoogieIcfgContainer [2024-11-13 16:11:15,590 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-13 16:11:15,591 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:11:15,591 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:11:15,594 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:11:15,595 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:10:57" (3/4) ... [2024-11-13 16:11:15,597 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-13 16:11:15,685 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 16:11:15,685 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:11:15,686 INFO L158 Benchmark]: Toolchain (without parser) took 18813.00ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 95.1MB in the beginning and 55.5MB in the end (delta: 39.7MB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB. [2024-11-13 16:11:15,686 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:11:15,687 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.53ms. Allocated memory is still 117.4MB. Free memory was 94.8MB in the beginning and 85.1MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:11:15,687 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.79ms. Allocated memory is still 117.4MB. Free memory was 84.8MB in the beginning and 83.9MB in the end (delta: 904.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:11:15,687 INFO L158 Benchmark]: Boogie Preprocessor took 35.79ms. Allocated memory is still 117.4MB. Free memory was 83.9MB in the beginning and 83.0MB in the end (delta: 896.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:11:15,688 INFO L158 Benchmark]: RCFGBuilder took 291.77ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 73.7MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:11:15,688 INFO L158 Benchmark]: BuchiAutomizer took 18127.85ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 73.7MB in the beginning and 61.1MB in the end (delta: 12.6MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. [2024-11-13 16:11:15,688 INFO L158 Benchmark]: Witness Printer took 94.77ms. Allocated memory is still 142.6MB. Free memory was 61.1MB in the beginning and 55.5MB in the end (delta: 5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:11:15,690 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.53ms. Allocated memory is still 117.4MB. Free memory was 94.8MB in the beginning and 85.1MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.79ms. Allocated memory is still 117.4MB. Free memory was 84.8MB in the beginning and 83.9MB in the end (delta: 904.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.79ms. Allocated memory is still 117.4MB. Free memory was 83.9MB in the beginning and 83.0MB in the end (delta: 896.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 291.77ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 73.7MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 18127.85ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 73.7MB in the beginning and 61.1MB in the end (delta: 12.6MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. * Witness Printer took 94.77ms. Allocated memory is still 142.6MB. Free memory was 61.1MB in the beginning and 55.5MB in the end (delta: 5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 18 terminating modules (13 trivial, 4 deterministic, 1 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function ((long) -1 * i) and consists of 4 locations. One deterministic module has affine ranking function (((long) -1 * i) + range) and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One nondeterministic module has affine ranking function (((long) -1 * i) + range) and consists of 4 locations. 13 modules have a trivial ranking function, the largest among these consists of 25 locations. The remainder module has 2266 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 17.9s and 16 iterations. TraceHistogramMax:21. Analysis of lassos took 12.5s. Construction of modules took 1.4s. Büchi inclusion checks took 3.6s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 14. Automata minimization 0.3s AutomataMinimizationTime, 18 MinimizatonAttempts, 4719 StatesRemovedByMinimization, 16 NontrivialMinimizations. Non-live state removal took 0.2s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 797 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 790 mSDsluCounter, 542 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 321 mSDsCounter, 154 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1343 IncrementalHoareTripleChecker+Invalid, 1497 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 154 mSolverCounterUnsat, 221 mSDtfsCounter, 1343 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT2 conc1 concLT1 SILN4 SILU0 SILI1 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital27 mio100 ax143 hnf100 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq176 hnf97 smp72 dnf138 smp87 tf108 neg100 sie114 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 3 Time: 40ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 6 MotzkinApplications: 18 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 17]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] int range; [L8] int up; [L9] i = __VERIFIER_nondet_int() [L10] range = 20 [L11] up = 0 VAL [range=20, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=20, range=20, up=0] [L14] COND FALSE !(i == 0) VAL [i=20, range=20, up=0] [L17] COND TRUE i == range [L18] up = 0 VAL [i=20, range=20, up=0] [L20] COND FALSE !(up == 1) VAL [i=20, range=20, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=19, range=20, up=0] [L26] COND FALSE !(i == range-2) VAL [i=19, range=20, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=19, range=20, up=0] [L14] COND FALSE !(i == 0) VAL [i=19, range=20, up=0] [L17] COND FALSE !(i == range) VAL [i=19, range=20, up=0] [L20] COND FALSE !(up == 1) VAL [i=19, range=20, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=18, range=20, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=18, range=19, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=18, range=19, up=0] [L14] COND FALSE !(i == 0) VAL [i=18, range=19, up=0] [L17] COND FALSE !(i == range) VAL [i=18, range=19, up=0] [L20] COND FALSE !(up == 1) VAL [i=18, range=19, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=17, range=19, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=17, range=18, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=17, range=18, up=0] [L14] COND FALSE !(i == 0) VAL [i=17, range=18, up=0] [L17] COND FALSE !(i == range) VAL [i=17, range=18, up=0] [L20] COND FALSE !(up == 1) VAL [i=17, range=18, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=16, range=18, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=16, range=17, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=16, range=17, up=0] [L14] COND FALSE !(i == 0) VAL [i=16, range=17, up=0] [L17] COND FALSE !(i == range) VAL [i=16, range=17, up=0] [L20] COND FALSE !(up == 1) VAL [i=16, range=17, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=15, range=17, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=15, range=16, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=15, range=16, up=0] [L14] COND FALSE !(i == 0) VAL [i=15, range=16, up=0] [L17] COND FALSE !(i == range) VAL [i=15, range=16, up=0] [L20] COND FALSE !(up == 1) VAL [i=15, range=16, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=14, range=16, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=14, range=15, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=14, range=15, up=0] [L14] COND FALSE !(i == 0) VAL [i=14, range=15, up=0] [L17] COND FALSE !(i == range) VAL [i=14, range=15, up=0] [L20] COND FALSE !(up == 1) VAL [i=14, range=15, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=13, range=15, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=13, range=14, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=13, range=14, up=0] [L14] COND FALSE !(i == 0) VAL [i=13, range=14, up=0] [L17] COND FALSE !(i == range) VAL [i=13, range=14, up=0] [L20] COND FALSE !(up == 1) VAL [i=13, range=14, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=12, range=14, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=12, range=13, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=12, range=13, up=0] [L14] COND FALSE !(i == 0) VAL [i=12, range=13, up=0] [L17] COND FALSE !(i == range) VAL [i=12, range=13, up=0] [L20] COND FALSE !(up == 1) VAL [i=12, range=13, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=11, range=13, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=11, range=12, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=11, range=12, up=0] [L14] COND FALSE !(i == 0) VAL [i=11, range=12, up=0] [L17] COND FALSE !(i == range) VAL [i=11, range=12, up=0] [L20] COND FALSE !(up == 1) VAL [i=11, range=12, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=10, range=12, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=10, range=11, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=10, range=11, up=0] [L14] COND FALSE !(i == 0) VAL [i=10, range=11, up=0] [L17] COND FALSE !(i == range) VAL [i=10, range=11, up=0] [L20] COND FALSE !(up == 1) VAL [i=10, range=11, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=9, range=11, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=9, range=10, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=9, range=10, up=0] [L14] COND FALSE !(i == 0) VAL [i=9, range=10, up=0] [L17] COND FALSE !(i == range) VAL [i=9, range=10, up=0] [L20] COND FALSE !(up == 1) VAL [i=9, range=10, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=8, range=10, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=8, range=9, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=8, range=9, up=0] [L14] COND FALSE !(i == 0) VAL [i=8, range=9, up=0] [L17] COND FALSE !(i == range) VAL [i=8, range=9, up=0] [L20] COND FALSE !(up == 1) VAL [i=8, range=9, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=7, range=9, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=7, range=8, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=7, range=8, up=0] [L14] COND FALSE !(i == 0) VAL [i=7, range=8, up=0] [L17] COND FALSE !(i == range) VAL [i=7, range=8, up=0] [L20] COND FALSE !(up == 1) VAL [i=7, range=8, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=6, range=8, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=6, range=7, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=6, range=7, up=0] [L14] COND FALSE !(i == 0) VAL [i=6, range=7, up=0] [L17] COND FALSE !(i == range) VAL [i=6, range=7, up=0] [L20] COND FALSE !(up == 1) VAL [i=6, range=7, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=5, range=7, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=5, range=6, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=5, range=6, up=0] [L14] COND FALSE !(i == 0) VAL [i=5, range=6, up=0] [L17] COND FALSE !(i == range) VAL [i=5, range=6, up=0] [L20] COND FALSE !(up == 1) VAL [i=5, range=6, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=4, range=6, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=4, range=5, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=4, range=5, up=0] [L14] COND FALSE !(i == 0) VAL [i=4, range=5, up=0] [L17] COND FALSE !(i == range) VAL [i=4, range=5, up=0] [L20] COND FALSE !(up == 1) VAL [i=4, range=5, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=3, range=5, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=3, range=4, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=3, range=4, up=0] [L14] COND FALSE !(i == 0) VAL [i=3, range=4, up=0] [L17] COND FALSE !(i == range) VAL [i=3, range=4, up=0] [L20] COND FALSE !(up == 1) VAL [i=3, range=4, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=2, range=4, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=2, range=3, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=2, range=3, up=0] [L14] COND FALSE !(i == 0) VAL [i=2, range=3, up=0] [L17] COND FALSE !(i == range) VAL [i=2, range=3, up=0] [L20] COND FALSE !(up == 1) VAL [i=2, range=3, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=1, range=3, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=1, range=2, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=1, range=2, up=0] [L14] COND FALSE !(i == 0) VAL [i=1, range=2, up=0] [L17] COND FALSE !(i == range) VAL [i=1, range=2, up=0] [L20] COND FALSE !(up == 1) VAL [i=1, range=2, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=0, range=2, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=0, range=1, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=0, range=1, up=0] [L14] COND TRUE i == 0 [L15] up = 1 VAL [i=0, range=1, up=1] Loop: [L17] COND FALSE !(i == range) [L20] COND TRUE up == 1 [L21] i = i+1 [L23] COND FALSE !(up == 0) [L26] COND FALSE !(i == range-2) [L13] COND TRUE 0 <= i && i <= range [L14] COND FALSE !(i == 0) [L17] COND TRUE i == range [L18] up = 0 [L20] COND FALSE !(up == 1) [L23] COND TRUE up == 0 [L24] i = i-1 [L26] COND FALSE !(i == range-2) [L13] COND TRUE 0 <= i && i <= range [L14] COND TRUE i == 0 [L15] up = 1 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 17]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int range; [L8] int up; [L9] i = __VERIFIER_nondet_int() [L10] range = 20 [L11] up = 0 VAL [range=20, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=20, range=20, up=0] [L14] COND FALSE !(i == 0) VAL [i=20, range=20, up=0] [L17] COND TRUE i == range [L18] up = 0 VAL [i=20, range=20, up=0] [L20] COND FALSE !(up == 1) VAL [i=20, range=20, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=19, range=20, up=0] [L26] COND FALSE !(i == range-2) VAL [i=19, range=20, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=19, range=20, up=0] [L14] COND FALSE !(i == 0) VAL [i=19, range=20, up=0] [L17] COND FALSE !(i == range) VAL [i=19, range=20, up=0] [L20] COND FALSE !(up == 1) VAL [i=19, range=20, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=18, range=20, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=18, range=19, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=18, range=19, up=0] [L14] COND FALSE !(i == 0) VAL [i=18, range=19, up=0] [L17] COND FALSE !(i == range) VAL [i=18, range=19, up=0] [L20] COND FALSE !(up == 1) VAL [i=18, range=19, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=17, range=19, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=17, range=18, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=17, range=18, up=0] [L14] COND FALSE !(i == 0) VAL [i=17, range=18, up=0] [L17] COND FALSE !(i == range) VAL [i=17, range=18, up=0] [L20] COND FALSE !(up == 1) VAL [i=17, range=18, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=16, range=18, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=16, range=17, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=16, range=17, up=0] [L14] COND FALSE !(i == 0) VAL [i=16, range=17, up=0] [L17] COND FALSE !(i == range) VAL [i=16, range=17, up=0] [L20] COND FALSE !(up == 1) VAL [i=16, range=17, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=15, range=17, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=15, range=16, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=15, range=16, up=0] [L14] COND FALSE !(i == 0) VAL [i=15, range=16, up=0] [L17] COND FALSE !(i == range) VAL [i=15, range=16, up=0] [L20] COND FALSE !(up == 1) VAL [i=15, range=16, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=14, range=16, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=14, range=15, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=14, range=15, up=0] [L14] COND FALSE !(i == 0) VAL [i=14, range=15, up=0] [L17] COND FALSE !(i == range) VAL [i=14, range=15, up=0] [L20] COND FALSE !(up == 1) VAL [i=14, range=15, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=13, range=15, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=13, range=14, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=13, range=14, up=0] [L14] COND FALSE !(i == 0) VAL [i=13, range=14, up=0] [L17] COND FALSE !(i == range) VAL [i=13, range=14, up=0] [L20] COND FALSE !(up == 1) VAL [i=13, range=14, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=12, range=14, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=12, range=13, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=12, range=13, up=0] [L14] COND FALSE !(i == 0) VAL [i=12, range=13, up=0] [L17] COND FALSE !(i == range) VAL [i=12, range=13, up=0] [L20] COND FALSE !(up == 1) VAL [i=12, range=13, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=11, range=13, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=11, range=12, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=11, range=12, up=0] [L14] COND FALSE !(i == 0) VAL [i=11, range=12, up=0] [L17] COND FALSE !(i == range) VAL [i=11, range=12, up=0] [L20] COND FALSE !(up == 1) VAL [i=11, range=12, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=10, range=12, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=10, range=11, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=10, range=11, up=0] [L14] COND FALSE !(i == 0) VAL [i=10, range=11, up=0] [L17] COND FALSE !(i == range) VAL [i=10, range=11, up=0] [L20] COND FALSE !(up == 1) VAL [i=10, range=11, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=9, range=11, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=9, range=10, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=9, range=10, up=0] [L14] COND FALSE !(i == 0) VAL [i=9, range=10, up=0] [L17] COND FALSE !(i == range) VAL [i=9, range=10, up=0] [L20] COND FALSE !(up == 1) VAL [i=9, range=10, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=8, range=10, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=8, range=9, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=8, range=9, up=0] [L14] COND FALSE !(i == 0) VAL [i=8, range=9, up=0] [L17] COND FALSE !(i == range) VAL [i=8, range=9, up=0] [L20] COND FALSE !(up == 1) VAL [i=8, range=9, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=7, range=9, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=7, range=8, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=7, range=8, up=0] [L14] COND FALSE !(i == 0) VAL [i=7, range=8, up=0] [L17] COND FALSE !(i == range) VAL [i=7, range=8, up=0] [L20] COND FALSE !(up == 1) VAL [i=7, range=8, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=6, range=8, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=6, range=7, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=6, range=7, up=0] [L14] COND FALSE !(i == 0) VAL [i=6, range=7, up=0] [L17] COND FALSE !(i == range) VAL [i=6, range=7, up=0] [L20] COND FALSE !(up == 1) VAL [i=6, range=7, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=5, range=7, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=5, range=6, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=5, range=6, up=0] [L14] COND FALSE !(i == 0) VAL [i=5, range=6, up=0] [L17] COND FALSE !(i == range) VAL [i=5, range=6, up=0] [L20] COND FALSE !(up == 1) VAL [i=5, range=6, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=4, range=6, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=4, range=5, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=4, range=5, up=0] [L14] COND FALSE !(i == 0) VAL [i=4, range=5, up=0] [L17] COND FALSE !(i == range) VAL [i=4, range=5, up=0] [L20] COND FALSE !(up == 1) VAL [i=4, range=5, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=3, range=5, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=3, range=4, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=3, range=4, up=0] [L14] COND FALSE !(i == 0) VAL [i=3, range=4, up=0] [L17] COND FALSE !(i == range) VAL [i=3, range=4, up=0] [L20] COND FALSE !(up == 1) VAL [i=3, range=4, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=2, range=4, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=2, range=3, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=2, range=3, up=0] [L14] COND FALSE !(i == 0) VAL [i=2, range=3, up=0] [L17] COND FALSE !(i == range) VAL [i=2, range=3, up=0] [L20] COND FALSE !(up == 1) VAL [i=2, range=3, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=1, range=3, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=1, range=2, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=1, range=2, up=0] [L14] COND FALSE !(i == 0) VAL [i=1, range=2, up=0] [L17] COND FALSE !(i == range) VAL [i=1, range=2, up=0] [L20] COND FALSE !(up == 1) VAL [i=1, range=2, up=0] [L23] COND TRUE up == 0 [L24] i = i-1 VAL [i=0, range=2, up=0] [L26] COND TRUE i == range-2 [L27] range = range-1 VAL [i=0, range=1, up=0] [L13] COND TRUE 0 <= i && i <= range VAL [i=0, range=1, up=0] [L14] COND TRUE i == 0 [L15] up = 1 VAL [i=0, range=1, up=1] Loop: [L17] COND FALSE !(i == range) [L20] COND TRUE up == 1 [L21] i = i+1 [L23] COND FALSE !(up == 0) [L26] COND FALSE !(i == range-2) [L13] COND TRUE 0 <= i && i <= range [L14] COND FALSE !(i == 0) [L17] COND TRUE i == range [L18] up = 0 [L20] COND FALSE !(up == 1) [L23] COND TRUE up == 0 [L24] i = i-1 [L26] COND FALSE !(i == range-2) [L13] COND TRUE 0 <= i && i <= range [L14] COND TRUE i == 0 [L15] up = 1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 16:11:15,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Ended with exit code 0 [2024-11-13 16:11:15,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Forceful destruction successful, exit code 0 [2024-11-13 16:11:16,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2024-11-13 16:11:16,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Forceful destruction successful, exit code 0 [2024-11-13 16:11:16,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Ended with exit code 0 [2024-11-13 16:11:16,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_729fa7d3-f3ca-4cfb-ba2c-fe4bb2427adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)