./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive/McCarthy91-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive/McCarthy91-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2a5dd5c1c64cd1875ba800cc2db6d1da955f2d2f519c1964ff87558bc42b9b4c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:17:19,930 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:17:20,064 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-23 23:17:20,071 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:17:20,074 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:17:20,121 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:17:20,122 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:17:20,123 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:17:20,123 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:17:20,124 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:17:20,124 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:17:20,125 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:17:20,125 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:17:20,125 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-23 23:17:20,126 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-23 23:17:20,127 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-23 23:17:20,127 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-23 23:17:20,128 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-23 23:17:20,128 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-23 23:17:20,128 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:17:20,128 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-23 23:17:20,128 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:17:20,129 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:17:20,129 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:17:20,129 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:17:20,129 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-23 23:17:20,129 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-23 23:17:20,129 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-23 23:17:20,130 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 23:17:20,130 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:17:20,130 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:17:20,130 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-23 23:17:20,130 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:17:20,130 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:17:20,131 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:17:20,131 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:17:20,131 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:17:20,132 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-23 23:17:20,133 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-23 23:17:20,133 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_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a5dd5c1c64cd1875ba800cc2db6d1da955f2d2f519c1964ff87558bc42b9b4c [2024-11-23 23:17:20,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:17:20,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:17:20,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:17:20,540 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:17:20,541 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:17:20,542 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/recursive/McCarthy91-2.c [2024-11-23 23:17:23,862 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/data/d3f3f4ac8/4e900e61f476414cbc7e9f54232be866/FLAG006b021cb [2024-11-23 23:17:24,159 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:17:24,162 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/sv-benchmarks/c/recursive/McCarthy91-2.c [2024-11-23 23:17:24,173 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/data/d3f3f4ac8/4e900e61f476414cbc7e9f54232be866/FLAG006b021cb [2024-11-23 23:17:24,203 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/data/d3f3f4ac8/4e900e61f476414cbc7e9f54232be866 [2024-11-23 23:17:24,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:17:24,210 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:17:24,212 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:17:24,212 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:17:24,218 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:17:24,219 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:17:24" (1/1) ... [2024-11-23 23:17:24,220 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2393f1ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:24, skipping insertion in model container [2024-11-23 23:17:24,226 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:17:24" (1/1) ... [2024-11-23 23:17:24,244 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:17:24,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:17:24,424 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:17:24,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:17:24,458 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:17:24,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:24 WrapperNode [2024-11-23 23:17:24,459 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:17:24,460 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:17:24,460 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:17:24,460 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:17:24,469 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:24" (1/1) ... [2024-11-23 23:17:24,477 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:24" (1/1) ... [2024-11-23 23:17:24,495 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2024-11-23 23:17:24,495 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:17:24,496 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:17:24,496 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:17:24,498 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:17:24,507 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:24" (1/1) ... [2024-11-23 23:17:24,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:24" (1/1) ... [2024-11-23 23:17:24,509 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:24" (1/1) ... [2024-11-23 23:17:24,523 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 23:17:24,525 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:24" (1/1) ... [2024-11-23 23:17:24,525 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:24" (1/1) ... [2024-11-23 23:17:24,528 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:24" (1/1) ... [2024-11-23 23:17:24,530 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:24" (1/1) ... [2024-11-23 23:17:24,532 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:24" (1/1) ... [2024-11-23 23:17:24,533 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:24" (1/1) ... [2024-11-23 23:17:24,537 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:24" (1/1) ... [2024-11-23 23:17:24,538 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:17:24,539 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:17:24,539 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:17:24,539 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:17:24,540 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:24" (1/1) ... [2024-11-23 23:17:24,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:24,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:24,583 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:24,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-23 23:17:24,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:17:24,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:17:24,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:17:24,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:17:24,619 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2024-11-23 23:17:24,619 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2024-11-23 23:17:24,685 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:17:24,687 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:17:24,817 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-23 23:17:24,817 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:17:24,826 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:17:24,827 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 23:17:24,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:17:24 BoogieIcfgContainer [2024-11-23 23:17:24,827 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:17:24,828 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-23 23:17:24,828 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-23 23:17:24,834 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-23 23:17:24,834 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 23:17:24,835 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 11:17:24" (1/3) ... [2024-11-23 23:17:24,835 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f669922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 11:17:24, skipping insertion in model container [2024-11-23 23:17:24,836 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 23:17:24,836 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:24" (2/3) ... [2024-11-23 23:17:24,836 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f669922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 11:17:24, skipping insertion in model container [2024-11-23 23:17:24,836 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 23:17:24,836 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:17:24" (3/3) ... [2024-11-23 23:17:24,838 INFO L363 chiAutomizerObserver]: Analyzing ICFG McCarthy91-2.c [2024-11-23 23:17:24,889 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-23 23:17:24,889 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-23 23:17:24,889 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-23 23:17:24,889 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-23 23:17:24,889 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-23 23:17:24,889 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-23 23:17:24,890 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-23 23:17:24,890 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-23 23:17:24,895 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-23 23:17:24,913 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-23 23:17:24,914 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 23:17:24,914 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 23:17:24,920 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-23 23:17:24,920 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-23 23:17:24,920 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-23 23:17:24,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-23 23:17:24,922 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-23 23:17:24,923 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 23:17:24,923 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 23:17:24,923 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-23 23:17:24,923 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-23 23:17:24,929 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;" "call main_#t~ret7#1 := f91(main_~x~0#1);"< [2024-11-23 23:17:24,929 INFO L749 eck$LassoCheckResult]: Loop: "~x := #in~x;" "assume !(~x > 100);" "call #t~ret4 := f91(11 + ~x);"< [2024-11-23 23:17:24,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:24,934 INFO L85 PathProgramCache]: Analyzing trace with hash 29879, now seen corresponding path program 1 times [2024-11-23 23:17:24,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:17:24,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852401715] [2024-11-23 23:17:24,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:24,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:17:25,022 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:17:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:17:25,053 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:17:25,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:25,057 INFO L85 PathProgramCache]: Analyzing trace with hash 46807, now seen corresponding path program 1 times [2024-11-23 23:17:25,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:17:25,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347330583] [2024-11-23 23:17:25,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:25,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:25,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:17:25,077 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:17:25,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:17:25,088 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:17:25,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:25,091 INFO L85 PathProgramCache]: Analyzing trace with hash 890142305, now seen corresponding path program 1 times [2024-11-23 23:17:25,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:17:25,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102299122] [2024-11-23 23:17:25,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:25,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:17:25,111 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:17:25,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:17:25,130 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:17:25,278 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 23:17:25,279 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 23:17:25,279 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 23:17:25,280 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 23:17:25,280 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 23:17:25,283 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:25,283 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 23:17:25,283 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 23:17:25,284 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration1_Loop [2024-11-23 23:17:25,284 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 23:17:25,284 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 23:17:25,302 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:25,316 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:25,339 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:25,348 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:25,357 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:25,418 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 23:17:25,419 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 23:17:25,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:25,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:25,426 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:25,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-23 23:17:25,430 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 23:17:25,430 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:17:25,454 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 23:17:25,455 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 23:17:25,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-23 23:17:25,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:25,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:25,470 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:25,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-23 23:17:25,475 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 23:17:25,475 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:17:25,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-23 23:17:25,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:25,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:25,507 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:25,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-23 23:17:25,512 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 23:17:25,512 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:17:25,700 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 23:17:25,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-23 23:17:25,705 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 23:17:25,705 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 23:17:25,705 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 23:17:25,706 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 23:17:25,706 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 23:17:25,706 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:25,706 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 23:17:25,706 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 23:17:25,706 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration1_Loop [2024-11-23 23:17:25,706 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 23:17:25,706 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 23:17:25,708 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:25,717 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:25,734 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:25,741 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:25,747 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:25,795 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 23:17:25,800 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 23:17:25,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:25,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:25,804 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:25,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-23 23:17:25,809 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 [2024-11-23 23:17:25,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 23:17:25,826 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 23:17:25,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 23:17:25,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 23:17:25,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 23:17:25,835 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 23:17:25,835 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 23:17:25,842 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 23:17:25,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-23 23:17:25,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:25,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:25,858 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:25,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-23 23:17:25,863 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 [2024-11-23 23:17:25,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 23:17:25,878 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 23:17:25,879 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 23:17:25,879 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 23:17:25,879 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 23:17:25,880 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 23:17:25,881 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 23:17:25,886 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 23:17:25,892 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-23 23:17:25,896 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-23 23:17:25,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:25,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:25,900 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:25,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-23 23:17:25,904 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 23:17:25,904 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 23:17:25,904 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 23:17:25,905 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -2*f91_#in~x + 211 Supporting invariants [] [2024-11-23 23:17:25,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-23 23:17:25,922 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 23:17:25,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:26,013 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:17:26,015 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:26,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-23 23:17:26,078 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 23:17:26,079 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:26,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:17:26,194 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 [2024-11-23 23:17:26,196 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 17 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:17:26,337 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 17 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 35 states and 43 transitions. Complement of second has 16 states. [2024-11-23 23:17:26,340 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 [2024-11-23 23:17:26,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:17:26,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2024-11-23 23:17:26,356 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2024-11-23 23:17:26,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:17:26,357 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2024-11-23 23:17:26,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:17:26,357 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2024-11-23 23:17:26,358 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:17:26,359 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 43 transitions. [2024-11-23 23:17:26,362 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-23 23:17:26,368 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 19 states and 25 transitions. [2024-11-23 23:17:26,369 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-11-23 23:17:26,369 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-11-23 23:17:26,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2024-11-23 23:17:26,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 23:17:26,372 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 25 transitions. [2024-11-23 23:17:26,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2024-11-23 23:17:26,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2024-11-23 23:17:26,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-23 23:17:26,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2024-11-23 23:17:26,396 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 21 transitions. [2024-11-23 23:17:26,396 INFO L425 stractBuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2024-11-23 23:17:26,396 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-23 23:17:26,396 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2024-11-23 23:17:26,397 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-23 23:17:26,397 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 23:17:26,397 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 23:17:26,398 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:17:26,398 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-23 23:17:26,399 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;" "call main_#t~ret7#1 := f91(main_~x~0#1);"< "~x := #in~x;" "assume !(~x > 100);" "call #t~ret4 := f91(11 + ~x);"< "~x := #in~x;" "assume ~x > 100;#res := ~x - 10;" "assume true;" >"#29#return;" [2024-11-23 23:17:26,399 INFO L749 eck$LassoCheckResult]: Loop: "call #t~ret5 := f91(#t~ret4);"< "~x := #in~x;" "assume !(~x > 100);" "call #t~ret4 := f91(11 + ~x);"< "~x := #in~x;" "assume ~x > 100;#res := ~x - 10;" "assume true;" >"#29#return;" [2024-11-23 23:17:26,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:26,399 INFO L85 PathProgramCache]: Analyzing trace with hash -218206616, now seen corresponding path program 1 times [2024-11-23 23:17:26,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:17:26,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46265267] [2024-11-23 23:17:26,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:26,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:17:26,411 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:17:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:17:26,422 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:17:26,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:26,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1767505954, now seen corresponding path program 1 times [2024-11-23 23:17:26,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:17:26,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002085220] [2024-11-23 23:17:26,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:26,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:17:26,430 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:17:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:17:26,438 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:17:26,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:26,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1919740023, now seen corresponding path program 1 times [2024-11-23 23:17:26,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:17:26,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004162818] [2024-11-23 23:17:26,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:26,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:26,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:17:26,460 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:17:26,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:17:26,475 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:17:26,711 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 23:17:26,711 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 23:17:26,711 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 23:17:26,712 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 23:17:26,712 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 23:17:26,712 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:26,712 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 23:17:26,712 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 23:17:26,712 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration2_Loop [2024-11-23 23:17:26,712 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 23:17:26,712 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 23:17:26,713 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:26,716 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:26,719 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:26,785 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 23:17:26,785 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 23:17:26,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:26,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:26,787 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:26,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-23 23:17:26,790 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 23:17:26,790 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:17:26,803 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 23:17:26,803 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#t~ret5=0} Honda state: {f91_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 23:17:26,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-23 23:17:26,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:26,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:26,814 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:26,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-23 23:17:26,818 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 23:17:26,818 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:17:26,830 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 23:17:26,831 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 23:17:26,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-23 23:17:26,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:26,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:26,839 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:26,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-23 23:17:26,843 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 23:17:26,843 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:17:26,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-23 23:17:26,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:26,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:26,879 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:26,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-23 23:17:26,881 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 23:17:26,881 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:17:27,502 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 23:17:27,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-23 23:17:27,514 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 23:17:27,514 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 23:17:27,514 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 23:17:27,514 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 23:17:27,514 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 23:17:27,514 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:27,514 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 23:17:27,514 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 23:17:27,514 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration2_Loop [2024-11-23 23:17:27,514 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 23:17:27,514 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 23:17:27,515 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:27,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:27,526 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:27,598 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 23:17:27,598 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 23:17:27,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:27,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:27,602 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:27,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-23 23:17:27,607 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 [2024-11-23 23:17:27,622 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 23:17:27,623 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 23:17:27,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 23:17:27,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 23:17:27,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 23:17:27,624 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 23:17:27,624 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 23:17:27,628 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 23:17:27,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-23 23:17:27,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:27,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:27,641 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:27,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-23 23:17:27,645 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 [2024-11-23 23:17:27,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 23:17:27,661 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 23:17:27,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 23:17:27,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 23:17:27,661 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 23:17:27,662 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 23:17:27,662 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 23:17:27,668 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 23:17:27,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-23 23:17:27,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:27,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:27,681 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:27,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-23 23:17:27,686 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 [2024-11-23 23:17:27,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 23:17:27,703 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 23:17:27,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 23:17:27,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 23:17:27,703 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 23:17:27,707 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 23:17:27,708 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 23:17:27,713 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 23:17:27,717 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-23 23:17:27,718 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-23 23:17:27,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:27,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:27,721 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:27,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-23 23:17:27,724 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 23:17:27,724 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 23:17:27,724 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 23:17:27,724 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#t~ret4) = -2*f91_#t~ret4 + 201 Supporting invariants [] [2024-11-23 23:17:27,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-23 23:17:27,733 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 23:17:27,740 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~ret4 [2024-11-23 23:17:27,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:27,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:27,798 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 23:17:27,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:27,952 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 23:17:27,954 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:28,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-23 23:17:28,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:17:28,153 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 7 loop predicates [2024-11-23 23:17:28,153 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-23 23:17:28,403 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6. Second operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Result 51 states and 73 transitions. Complement of second has 32 states. [2024-11-23 23:17:28,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2024-11-23 23:17:28,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-23 23:17:28,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 17 transitions. [2024-11-23 23:17:28,409 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 10 letters. Loop has 8 letters. [2024-11-23 23:17:28,410 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:17:28,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 18 letters. Loop has 8 letters. [2024-11-23 23:17:28,410 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:17:28,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 10 letters. Loop has 16 letters. [2024-11-23 23:17:28,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:17:28,411 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 73 transitions. [2024-11-23 23:17:28,415 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2024-11-23 23:17:28,417 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 42 states and 62 transitions. [2024-11-23 23:17:28,417 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2024-11-23 23:17:28,418 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2024-11-23 23:17:28,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 62 transitions. [2024-11-23 23:17:28,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 23:17:28,418 INFO L218 hiAutomatonCegarLoop]: Abstraction has 42 states and 62 transitions. [2024-11-23 23:17:28,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 62 transitions. [2024-11-23 23:17:28,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2024-11-23 23:17:28,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 23 states have internal predecessors, (26), 10 states have call successors, (13), 7 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-23 23:17:28,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2024-11-23 23:17:28,424 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 51 transitions. [2024-11-23 23:17:28,424 INFO L425 stractBuchiCegarLoop]: Abstraction has 36 states and 51 transitions. [2024-11-23 23:17:28,424 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-23 23:17:28,424 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 51 transitions. [2024-11-23 23:17:28,425 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2024-11-23 23:17:28,425 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 23:17:28,425 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 23:17:28,426 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:17:28,426 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-23 23:17:28,426 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;" "call main_#t~ret7#1 := f91(main_~x~0#1);"< "~x := #in~x;" "assume !(~x > 100);" "call #t~ret4 := f91(11 + ~x);"< "~x := #in~x;" "assume ~x > 100;#res := ~x - 10;" "assume true;" >"#29#return;" "call #t~ret5 := f91(#t~ret4);"< "~x := #in~x;" "assume !(~x > 100);" [2024-11-23 23:17:28,426 INFO L749 eck$LassoCheckResult]: Loop: "call #t~ret4 := f91(11 + ~x);"< "~x := #in~x;" "assume !(~x > 100);" [2024-11-23 23:17:28,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:28,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1987218266, now seen corresponding path program 2 times [2024-11-23 23:17:28,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:17:28,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712177840] [2024-11-23 23:17:28,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:28,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:17:28,438 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:17:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:17:28,448 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:17:28,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:28,448 INFO L85 PathProgramCache]: Analyzing trace with hash 57247, now seen corresponding path program 2 times [2024-11-23 23:17:28,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:17:28,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132806341] [2024-11-23 23:17:28,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:28,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:28,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:17:28,452 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:17:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:17:28,455 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:17:28,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:28,456 INFO L85 PathProgramCache]: Analyzing trace with hash -609818202, now seen corresponding path program 3 times [2024-11-23 23:17:28,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:17:28,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834194262] [2024-11-23 23:17:28,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:28,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:28,644 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-23 23:17:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:28,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-23 23:17:28,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834194262] [2024-11-23 23:17:28,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834194262] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:17:28,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889406107] [2024-11-23 23:17:28,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:28,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:17:28,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:28,701 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:17:28,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-23 23:17:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:28,740 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 23:17:28,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:28,776 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:17:28,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889406107] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:17:28,927 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:17:28,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-23 23:17:28,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454290163] [2024-11-23 23:17:28,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:17:29,000 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 23:17:29,000 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 23:17:29,000 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 23:17:29,001 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 23:17:29,001 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 23:17:29,001 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:29,001 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 23:17:29,001 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 23:17:29,001 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration3_Loop [2024-11-23 23:17:29,001 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 23:17:29,001 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 23:17:29,002 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:29,006 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:29,016 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:29,019 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:29,061 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 23:17:29,062 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 23:17:29,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:29,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:29,064 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:29,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-23 23:17:29,070 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 23:17:29,070 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:17:29,088 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 23:17:29,088 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#t~ret4=0} Honda state: {f91_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 23:17:29,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-23 23:17:29,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:29,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:29,100 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:29,104 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 23:17:29,104 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:17:29,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-23 23:17:29,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-23 23:17:29,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:29,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:29,139 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:29,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-23 23:17:29,142 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 23:17:29,142 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:17:29,542 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 23:17:29,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-23 23:17:29,549 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 23:17:29,549 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 23:17:29,549 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 23:17:29,549 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 23:17:29,550 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 23:17:29,550 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:29,550 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 23:17:29,550 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 23:17:29,550 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration3_Loop [2024-11-23 23:17:29,550 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 23:17:29,550 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 23:17:29,551 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:29,554 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:29,556 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:29,566 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:29,602 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 23:17:29,602 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 23:17:29,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:29,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:29,606 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:29,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-23 23:17:29,608 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 [2024-11-23 23:17:29,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 23:17:29,623 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 23:17:29,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 23:17:29,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 23:17:29,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 23:17:29,624 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 23:17:29,624 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 23:17:29,626 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 23:17:29,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-23 23:17:29,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:29,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:29,638 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:29,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-23 23:17:29,651 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 [2024-11-23 23:17:29,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 23:17:29,667 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 23:17:29,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 23:17:29,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 23:17:29,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 23:17:29,671 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 23:17:29,672 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 23:17:29,676 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 23:17:29,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-11-23 23:17:29,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:29,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:29,689 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:29,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-23 23:17:29,693 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 [2024-11-23 23:17:29,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 23:17:29,710 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 23:17:29,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 23:17:29,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 23:17:29,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 23:17:29,713 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 23:17:29,714 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 23:17:29,721 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 23:17:29,724 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-23 23:17:29,725 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-23 23:17:29,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:29,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:29,729 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:29,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-23 23:17:29,731 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 23:17:29,731 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 23:17:29,731 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 23:17:29,731 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_~x) = -2*f91_~x + 189 Supporting invariants [] [2024-11-23 23:17:29,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-23 23:17:29,743 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 23:17:29,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:29,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:29,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 23:17:29,792 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:29,893 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 23:17:29,894 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:29,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:17:29,933 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2024-11-23 23:17:29,933 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 51 transitions. cyclomatic complexity: 19 Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:17:30,018 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 51 transitions. cyclomatic complexity: 19. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 43 states and 59 transitions. Complement of second has 13 states. [2024-11-23 23:17:30,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-23 23:17:30,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:17:30,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2024-11-23 23:17:30,021 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 13 letters. Loop has 3 letters. [2024-11-23 23:17:30,022 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:17:30,022 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-23 23:17:30,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:30,068 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 23:17:30,069 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:30,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:30,160 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 23:17:30,160 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:30,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:17:30,195 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 3 loop predicates [2024-11-23 23:17:30,195 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 51 transitions. cyclomatic complexity: 19 Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:17:30,277 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 51 transitions. cyclomatic complexity: 19. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 43 states and 59 transitions. Complement of second has 13 states. [2024-11-23 23:17:30,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-23 23:17:30,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:17:30,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2024-11-23 23:17:30,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 13 letters. Loop has 3 letters. [2024-11-23 23:17:30,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:17:30,281 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-23 23:17:30,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:30,330 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 23:17:30,331 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:30,422 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 23:17:30,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:30,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:17:30,461 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2024-11-23 23:17:30,461 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 51 transitions. cyclomatic complexity: 19 Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:17:30,567 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 51 transitions. cyclomatic complexity: 19. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 71 states and 100 transitions. Complement of second has 16 states. [2024-11-23 23:17:30,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-23 23:17:30,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:17:30,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2024-11-23 23:17:30,572 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 13 letters. Loop has 3 letters. [2024-11-23 23:17:30,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:17:30,573 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 16 letters. Loop has 3 letters. [2024-11-23 23:17:30,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:17:30,573 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 13 letters. Loop has 6 letters. [2024-11-23 23:17:30,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:17:30,573 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 100 transitions. [2024-11-23 23:17:30,577 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-23 23:17:30,579 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 48 states and 74 transitions. [2024-11-23 23:17:30,579 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2024-11-23 23:17:30,580 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2024-11-23 23:17:30,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 74 transitions. [2024-11-23 23:17:30,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 23:17:30,580 INFO L218 hiAutomatonCegarLoop]: Abstraction has 48 states and 74 transitions. [2024-11-23 23:17:30,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 74 transitions. [2024-11-23 23:17:30,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2024-11-23 23:17:30,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 11 states have call successors, (18), 9 states have call predecessors, (18), 5 states have return successors, (15), 6 states have call predecessors, (15), 8 states have call successors, (15) [2024-11-23 23:17:30,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 60 transitions. [2024-11-23 23:17:30,586 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 60 transitions. [2024-11-23 23:17:30,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-23 23:17:30,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 23:17:30,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:17:30,590 INFO L87 Difference]: Start difference. First operand 42 states and 60 transitions. Second operand has 14 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 8 states have internal predecessors, (16), 5 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-23 23:17:30,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:17:30,744 INFO L93 Difference]: Finished difference Result 63 states and 82 transitions. [2024-11-23 23:17:30,744 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 82 transitions. [2024-11-23 23:17:30,746 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2024-11-23 23:17:30,748 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 58 states and 75 transitions. [2024-11-23 23:17:30,749 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2024-11-23 23:17:30,749 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2024-11-23 23:17:30,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 75 transitions. [2024-11-23 23:17:30,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 23:17:30,749 INFO L218 hiAutomatonCegarLoop]: Abstraction has 58 states and 75 transitions. [2024-11-23 23:17:30,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 75 transitions. [2024-11-23 23:17:30,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2024-11-23 23:17:30,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 37 states have internal predecessors, (37), 13 states have call successors, (18), 11 states have call predecessors, (18), 9 states have return successors, (19), 8 states have call predecessors, (19), 11 states have call successors, (19) [2024-11-23 23:17:30,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 74 transitions. [2024-11-23 23:17:30,755 INFO L240 hiAutomatonCegarLoop]: Abstraction has 57 states and 74 transitions. [2024-11-23 23:17:30,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 23:17:30,756 INFO L425 stractBuchiCegarLoop]: Abstraction has 57 states and 74 transitions. [2024-11-23 23:17:30,756 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-23 23:17:30,757 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 74 transitions. [2024-11-23 23:17:30,758 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2024-11-23 23:17:30,758 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 23:17:30,758 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 23:17:30,759 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-23 23:17:30,759 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 3, 2, 2, 2, 2, 2, 1, 1] [2024-11-23 23:17:30,760 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;" "call main_#t~ret7#1 := f91(main_~x~0#1);"< "~x := #in~x;" "assume !(~x > 100);" "call #t~ret4 := f91(11 + ~x);"< "~x := #in~x;" "assume !(~x > 100);" "call #t~ret4 := f91(11 + ~x);"< "~x := #in~x;" "assume ~x > 100;#res := ~x - 10;" "assume true;" >"#29#return;" "call #t~ret5 := f91(#t~ret4);"< "~x := #in~x;" "assume ~x > 100;#res := ~x - 10;" "assume true;" >"#31#return;" "#res := #t~ret5;havoc #t~ret4;havoc #t~ret5;" "assume true;" >"#29#return;" "call #t~ret5 := f91(#t~ret4);"< [2024-11-23 23:17:30,760 INFO L749 eck$LassoCheckResult]: Loop: "~x := #in~x;" "assume !(~x > 100);" "call #t~ret4 := f91(11 + ~x);"< "~x := #in~x;" "assume !(~x > 100);" "call #t~ret4 := f91(11 + ~x);"< "~x := #in~x;" "assume ~x > 100;#res := ~x - 10;" "assume true;" >"#29#return;" "call #t~ret5 := f91(#t~ret4);"< "~x := #in~x;" "assume ~x > 100;#res := ~x - 10;" "assume true;" >"#31#return;" "#res := #t~ret5;havoc #t~ret4;havoc #t~ret5;" "assume true;" >"#29#return;" "call #t~ret5 := f91(#t~ret4);"< [2024-11-23 23:17:30,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:30,760 INFO L85 PathProgramCache]: Analyzing trace with hash -834951989, now seen corresponding path program 1 times [2024-11-23 23:17:30,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:17:30,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017263038] [2024-11-23 23:17:30,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:30,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:17:30,772 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:17:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:17:30,783 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:17:30,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:30,783 INFO L85 PathProgramCache]: Analyzing trace with hash -871747263, now seen corresponding path program 1 times [2024-11-23 23:17:30,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:17:30,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950077284] [2024-11-23 23:17:30,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:30,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:30,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:17:30,792 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:17:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:17:30,801 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:17:30,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:30,801 INFO L85 PathProgramCache]: Analyzing trace with hash 418853943, now seen corresponding path program 2 times [2024-11-23 23:17:30,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:17:30,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458130521] [2024-11-23 23:17:30,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:30,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:30,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:30,947 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-23 23:17:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:31,024 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-23 23:17:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:31,032 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-23 23:17:31,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:31,052 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-23 23:17:31,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:31,179 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-23 23:17:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:31,192 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-23 23:17:31,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:31,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-23 23:17:31,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458130521] [2024-11-23 23:17:31,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458130521] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:17:31,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096100964] [2024-11-23 23:17:31,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:31,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:17:31,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:31,202 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:17:31,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-23 23:17:31,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:31,277 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 23:17:31,280 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:31,351 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:17:31,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096100964] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:17:31,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:17:31,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2024-11-23 23:17:31,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653340114] [2024-11-23 23:17:31,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:17:31,953 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 23:17:31,953 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 23:17:31,954 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 23:17:31,954 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 23:17:31,954 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 23:17:31,954 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:31,954 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 23:17:31,954 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 23:17:31,954 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration4_Loop [2024-11-23 23:17:31,954 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 23:17:31,954 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 23:17:31,955 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:31,959 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:31,963 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:31,966 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:31,972 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:32,017 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 23:17:32,017 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 23:17:32,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:32,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:32,023 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:32,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-23 23:17:32,028 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 23:17:32,028 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:17:32,051 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 23:17:32,052 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#t~ret4=0} Honda state: {f91_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 23:17:32,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-23 23:17:32,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:32,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:32,066 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:32,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-23 23:17:32,073 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 23:17:32,073 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:17:32,095 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 23:17:32,095 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_~x=0} Honda state: {f91_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 23:17:32,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-23 23:17:32,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:32,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:32,109 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:32,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-23 23:17:32,113 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 23:17:32,113 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:17:32,133 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 23:17:32,133 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#t~ret5=0} Honda state: {f91_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 23:17:32,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-23 23:17:32,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:32,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:32,146 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:32,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-23 23:17:32,152 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 23:17:32,152 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:17:32,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-23 23:17:32,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:32,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:32,190 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:32,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-23 23:17:32,196 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 23:17:32,197 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:17:32,213 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 23:17:32,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-23 23:17:32,222 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 23:17:32,222 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 23:17:32,223 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 23:17:32,223 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 23:17:32,223 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 23:17:32,223 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:32,223 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 23:17:32,223 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 23:17:32,223 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration4_Loop [2024-11-23 23:17:32,223 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 23:17:32,223 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 23:17:32,224 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:32,228 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:32,230 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:32,233 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:32,239 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:32,273 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 23:17:32,273 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 23:17:32,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:32,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:32,275 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:32,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-23 23:17:32,280 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 23:17:32,294 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 23:17:32,294 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 23:17:32,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 23:17:32,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 23:17:32,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 23:17:32,296 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 23:17:32,296 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 23:17:32,297 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 23:17:32,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-11-23 23:17:32,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:32,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:32,310 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:32,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-23 23:17:32,315 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 [2024-11-23 23:17:32,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 23:17:32,330 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 23:17:32,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 23:17:32,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 23:17:32,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 23:17:32,331 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 23:17:32,331 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 23:17:32,335 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 23:17:32,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-11-23 23:17:32,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:32,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:32,348 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:32,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-23 23:17:32,352 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 [2024-11-23 23:17:32,367 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 23:17:32,367 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 23:17:32,367 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 23:17:32,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 23:17:32,368 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 23:17:32,368 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 23:17:32,368 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 23:17:32,371 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 23:17:32,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-11-23 23:17:32,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:32,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:32,384 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:32,388 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 [2024-11-23 23:17:32,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-23 23:17:32,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 23:17:32,403 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 23:17:32,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 23:17:32,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 23:17:32,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 23:17:32,405 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 23:17:32,405 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 23:17:32,408 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 23:17:32,411 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-23 23:17:32,411 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-23 23:17:32,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:32,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:32,414 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:32,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-23 23:17:32,418 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 23:17:32,418 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 23:17:32,418 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 23:17:32,418 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -1*f91_#in~x + 90 Supporting invariants [] [2024-11-23 23:17:32,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-11-23 23:17:32,429 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 23:17:32,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:32,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:32,492 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 23:17:32,494 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:32,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-23 23:17:32,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:33,088 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-23 23:17:33,089 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 10 loop predicates [2024-11-23 23:17:33,089 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 57 states and 74 transitions. cyclomatic complexity: 21 Second operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 6 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-23 23:17:33,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-11-23 23:17:33,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-23 23:17:33,598 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 57 states and 74 transitions. cyclomatic complexity: 21. Second operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 6 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Result 125 states and 150 transitions. Complement of second has 49 states. [2024-11-23 23:17:33,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 15 states 2 stem states 12 non-accepting loop states 1 accepting loop states [2024-11-23 23:17:33,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 6 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-23 23:17:33,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 35 transitions. [2024-11-23 23:17:33,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 35 transitions. Stem has 22 letters. Loop has 19 letters. [2024-11-23 23:17:33,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:17:33,601 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-23 23:17:33,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:33,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:33,656 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 23:17:33,658 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:33,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-23 23:17:33,865 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:34,129 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-23 23:17:34,130 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 10 loop predicates [2024-11-23 23:17:34,130 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 57 states and 74 transitions. cyclomatic complexity: 21 Second operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 6 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-23 23:17:34,622 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 57 states and 74 transitions. cyclomatic complexity: 21. Second operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 6 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Result 125 states and 150 transitions. Complement of second has 49 states. [2024-11-23 23:17:34,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 15 states 2 stem states 12 non-accepting loop states 1 accepting loop states [2024-11-23 23:17:34,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 6 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-23 23:17:34,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 35 transitions. [2024-11-23 23:17:34,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 35 transitions. Stem has 22 letters. Loop has 19 letters. [2024-11-23 23:17:34,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:17:34,626 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-23 23:17:34,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:34,678 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 23:17:34,679 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:34,927 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-23 23:17:34,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:35,193 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-23 23:17:35,194 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 10 loop predicates [2024-11-23 23:17:35,195 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 57 states and 74 transitions. cyclomatic complexity: 21 Second operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 6 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-23 23:17:36,171 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 57 states and 74 transitions. cyclomatic complexity: 21. Second operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 6 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Result 431 states and 531 transitions. Complement of second has 224 states. [2024-11-23 23:17:36,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 21 states 2 stem states 18 non-accepting loop states 1 accepting loop states [2024-11-23 23:17:36,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 6 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-23 23:17:36,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 50 transitions. [2024-11-23 23:17:36,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 50 transitions. Stem has 22 letters. Loop has 19 letters. [2024-11-23 23:17:36,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:17:36,174 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 50 transitions. Stem has 41 letters. Loop has 19 letters. [2024-11-23 23:17:36,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:17:36,174 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 50 transitions. Stem has 22 letters. Loop has 38 letters. [2024-11-23 23:17:36,175 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:17:36,175 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 431 states and 531 transitions. [2024-11-23 23:17:36,185 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 29 [2024-11-23 23:17:36,190 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 431 states to 203 states and 269 transitions. [2024-11-23 23:17:36,190 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 95 [2024-11-23 23:17:36,191 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 106 [2024-11-23 23:17:36,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 203 states and 269 transitions. [2024-11-23 23:17:36,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 23:17:36,191 INFO L218 hiAutomatonCegarLoop]: Abstraction has 203 states and 269 transitions. [2024-11-23 23:17:36,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states and 269 transitions. [2024-11-23 23:17:36,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 157. [2024-11-23 23:17:36,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 97 states have (on average 1.092783505154639) internal successors, (106), 99 states have internal predecessors, (106), 35 states have call successors, (45), 29 states have call predecessors, (45), 25 states have return successors, (47), 28 states have call predecessors, (47), 32 states have call successors, (47) [2024-11-23 23:17:36,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 198 transitions. [2024-11-23 23:17:36,222 INFO L240 hiAutomatonCegarLoop]: Abstraction has 157 states and 198 transitions. [2024-11-23 23:17:36,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-23 23:17:36,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-23 23:17:36,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:17:36,225 INFO L87 Difference]: Start difference. First operand 157 states and 198 transitions. Second operand has 17 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 10 states have internal predecessors, (24), 8 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-23 23:17:36,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:17:36,482 INFO L93 Difference]: Finished difference Result 159 states and 188 transitions. [2024-11-23 23:17:36,483 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 188 transitions. [2024-11-23 23:17:36,488 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-11-23 23:17:36,490 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 104 states and 123 transitions. [2024-11-23 23:17:36,491 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2024-11-23 23:17:36,493 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 76 [2024-11-23 23:17:36,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 123 transitions. [2024-11-23 23:17:36,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 23:17:36,494 INFO L218 hiAutomatonCegarLoop]: Abstraction has 104 states and 123 transitions. [2024-11-23 23:17:36,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 123 transitions. [2024-11-23 23:17:36,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 100. [2024-11-23 23:17:36,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 63 states have (on average 1.0476190476190477) internal successors, (66), 64 states have internal predecessors, (66), 21 states have call successors, (28), 20 states have call predecessors, (28), 16 states have return successors, (25), 15 states have call predecessors, (25), 18 states have call successors, (25) [2024-11-23 23:17:36,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 119 transitions. [2024-11-23 23:17:36,501 INFO L240 hiAutomatonCegarLoop]: Abstraction has 100 states and 119 transitions. [2024-11-23 23:17:36,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:17:36,505 INFO L425 stractBuchiCegarLoop]: Abstraction has 100 states and 119 transitions. [2024-11-23 23:17:36,505 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-23 23:17:36,506 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 100 states and 119 transitions. [2024-11-23 23:17:36,507 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-11-23 23:17:36,507 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 23:17:36,507 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 23:17:36,508 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-23 23:17:36,508 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-23 23:17:36,511 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;" "call main_#t~ret7#1 := f91(main_~x~0#1);"< "~x := #in~x;" "assume !(~x > 100);" "call #t~ret4 := f91(11 + ~x);"< "~x := #in~x;" "assume !(~x > 100);" "call #t~ret4 := f91(11 + ~x);"< "~x := #in~x;" "assume ~x > 100;#res := ~x - 10;" "assume true;" >"#29#return;" "call #t~ret5 := f91(#t~ret4);"< "~x := #in~x;" "assume ~x > 100;#res := ~x - 10;" "assume true;" >"#31#return;" "#res := #t~ret5;havoc #t~ret4;havoc #t~ret5;" "assume true;" >"#29#return;" "call #t~ret5 := f91(#t~ret4);"< "~x := #in~x;" "assume !(~x > 100);" "call #t~ret4 := f91(11 + ~x);"< "~x := #in~x;" "assume !(~x > 100);" "call #t~ret4 := f91(11 + ~x);"< "~x := #in~x;" "assume ~x > 100;#res := ~x - 10;" "assume true;" >"#29#return;" [2024-11-23 23:17:36,511 INFO L749 eck$LassoCheckResult]: Loop: "call #t~ret5 := f91(#t~ret4);"< "~x := #in~x;" "assume !(~x > 100);" "call #t~ret4 := f91(11 + ~x);"< "~x := #in~x;" "assume ~x > 100;#res := ~x - 10;" "assume true;" >"#29#return;" [2024-11-23 23:17:36,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:36,512 INFO L85 PathProgramCache]: Analyzing trace with hash 2083076242, now seen corresponding path program 3 times [2024-11-23 23:17:36,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:17:36,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507498857] [2024-11-23 23:17:36,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:36,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:36,638 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-23 23:17:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:36,677 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-23 23:17:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:36,680 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-23 23:17:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:36,695 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-23 23:17:36,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:36,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-23 23:17:36,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507498857] [2024-11-23 23:17:36,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507498857] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:17:36,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934663855] [2024-11-23 23:17:36,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:36,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:17:36,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:36,702 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:17:36,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-23 23:17:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:36,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 23:17:36,743 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:36,772 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:17:36,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934663855] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:17:36,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:17:36,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-23 23:17:36,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512543100] [2024-11-23 23:17:36,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:17:36,960 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-23 23:17:36,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:36,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1767505954, now seen corresponding path program 2 times [2024-11-23 23:17:36,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:17:36,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340184434] [2024-11-23 23:17:36,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:36,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:36,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:17:36,964 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:17:36,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:17:36,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:17:37,097 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 23:17:37,098 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 23:17:37,098 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 23:17:37,098 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 23:17:37,098 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 23:17:37,098 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:37,098 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 23:17:37,098 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 23:17:37,098 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration5_Loop [2024-11-23 23:17:37,098 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 23:17:37,098 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 23:17:37,099 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:37,101 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:37,102 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:37,146 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 23:17:37,146 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 23:17:37,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:37,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:37,148 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:37,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-23 23:17:37,151 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 23:17:37,151 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:17:37,163 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 23:17:37,163 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#t~ret5=0} Honda state: {f91_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 23:17:37,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-11-23 23:17:37,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:37,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:37,174 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:37,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-23 23:17:37,176 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 23:17:37,176 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:17:37,189 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 23:17:37,189 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 23:17:37,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-11-23 23:17:37,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:37,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:37,197 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:37,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-23 23:17:37,200 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 23:17:37,201 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:17:37,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2024-11-23 23:17:37,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:37,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:37,236 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:37,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-11-23 23:17:37,239 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 23:17:37,239 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:17:37,884 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 23:17:37,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-11-23 23:17:37,895 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 23:17:37,895 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 23:17:37,895 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 23:17:37,895 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 23:17:37,895 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 23:17:37,895 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:37,895 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 23:17:37,895 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 23:17:37,895 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration5_Loop [2024-11-23 23:17:37,895 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 23:17:37,895 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 23:17:37,896 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:37,905 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:37,908 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:17:37,949 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 23:17:37,949 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 23:17:37,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:37,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:37,952 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:37,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-23 23:17:37,956 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 [2024-11-23 23:17:37,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 23:17:37,967 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 23:17:37,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 23:17:37,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 23:17:37,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 23:17:37,968 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 23:17:37,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 23:17:37,969 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 23:17:37,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-11-23 23:17:37,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:37,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:37,978 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:37,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-11-23 23:17:37,981 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 [2024-11-23 23:17:37,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 23:17:37,992 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 23:17:37,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 23:17:37,992 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 23:17:37,992 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 23:17:37,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 23:17:37,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 23:17:37,994 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 23:17:38,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-11-23 23:17:38,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:38,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:38,005 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:38,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-11-23 23:17:38,008 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 [2024-11-23 23:17:38,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 23:17:38,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 23:17:38,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 23:17:38,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 23:17:38,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 23:17:38,021 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 23:17:38,021 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 23:17:38,025 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 23:17:38,029 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-23 23:17:38,029 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-23 23:17:38,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:17:38,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:38,032 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:38,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-11-23 23:17:38,036 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 23:17:38,036 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 23:17:38,036 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 23:17:38,036 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#t~ret4) = -2*f91_#t~ret4 + 201 Supporting invariants [] [2024-11-23 23:17:38,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2024-11-23 23:17:38,044 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 23:17:38,045 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~ret4 [2024-11-23 23:17:38,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:38,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:38,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 23:17:38,104 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:38,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:38,325 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 23:17:38,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:38,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:17:38,430 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 7 loop predicates [2024-11-23 23:17:38,430 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 100 states and 119 transitions. cyclomatic complexity: 24 Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-23 23:17:38,605 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 100 states and 119 transitions. cyclomatic complexity: 24. Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Result 139 states and 161 transitions. Complement of second has 24 states. [2024-11-23 23:17:38,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2024-11-23 23:17:38,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-23 23:17:38,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 17 transitions. [2024-11-23 23:17:38,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 32 letters. Loop has 8 letters. [2024-11-23 23:17:38,607 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:17:38,607 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-23 23:17:38,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:38,679 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 23:17:38,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:38,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:38,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 23:17:38,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:39,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:17:39,012 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 7 loop predicates [2024-11-23 23:17:39,012 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 100 states and 119 transitions. cyclomatic complexity: 24 Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-23 23:17:39,165 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 100 states and 119 transitions. cyclomatic complexity: 24. Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Result 139 states and 161 transitions. Complement of second has 24 states. [2024-11-23 23:17:39,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2024-11-23 23:17:39,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-23 23:17:39,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 17 transitions. [2024-11-23 23:17:39,167 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 32 letters. Loop has 8 letters. [2024-11-23 23:17:39,167 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:17:39,167 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-23 23:17:39,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:39,231 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 23:17:39,232 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:39,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:39,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 23:17:39,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:39,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:17:39,568 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 7 loop predicates [2024-11-23 23:17:39,568 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 100 states and 119 transitions. cyclomatic complexity: 24 Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-23 23:17:39,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2024-11-23 23:17:39,786 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 100 states and 119 transitions. cyclomatic complexity: 24. Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Result 181 states and 211 transitions. Complement of second has 27 states. [2024-11-23 23:17:39,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2024-11-23 23:17:39,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-23 23:17:39,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 21 transitions. [2024-11-23 23:17:39,790 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 21 transitions. Stem has 32 letters. Loop has 8 letters. [2024-11-23 23:17:39,791 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:17:39,791 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 21 transitions. Stem has 40 letters. Loop has 8 letters. [2024-11-23 23:17:39,793 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:17:39,794 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 21 transitions. Stem has 32 letters. Loop has 16 letters. [2024-11-23 23:17:39,796 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:17:39,796 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 181 states and 211 transitions. [2024-11-23 23:17:39,802 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-23 23:17:39,803 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 181 states to 0 states and 0 transitions. [2024-11-23 23:17:39,803 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-23 23:17:39,803 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-23 23:17:39,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-23 23:17:39,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-23 23:17:39,804 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 23:17:39,804 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 23:17:39,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-23 23:17:39,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 23:17:39,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:17:39,805 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 16 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 8 states have internal predecessors, (23), 6 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (7), 6 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-23 23:17:39,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:17:39,806 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-11-23 23:17:39,806 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-11-23 23:17:39,806 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-23 23:17:39,806 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-11-23 23:17:39,806 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-23 23:17:39,806 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-23 23:17:39,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-23 23:17:39,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-23 23:17:39,806 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 23:17:39,806 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 23:17:39,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:17:39,807 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 23:17:39,807 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-23 23:17:39,807 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-23 23:17:39,808 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-23 23:17:39,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-23 23:17:39,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 11:17:39 BoogieIcfgContainer [2024-11-23 23:17:39,822 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-23 23:17:39,823 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 23:17:39,823 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 23:17:39,823 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 23:17:39,825 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:17:24" (3/4) ... [2024-11-23 23:17:39,828 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 23:17:39,828 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 23:17:39,832 INFO L158 Benchmark]: Toolchain (without parser) took 15619.30ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 93.4MB in the beginning and 314.5MB in the end (delta: -221.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:17:39,833 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 167.8MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:17:39,833 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.58ms. Allocated memory is still 117.4MB. Free memory was 93.4MB in the beginning and 83.1MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:17:39,834 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.76ms. Allocated memory is still 117.4MB. Free memory was 83.1MB in the beginning and 82.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:17:39,834 INFO L158 Benchmark]: Boogie Preprocessor took 41.80ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 80.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:17:39,835 INFO L158 Benchmark]: RCFGBuilder took 288.69ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 71.3MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:17:39,835 INFO L158 Benchmark]: BuchiAutomizer took 14994.20ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 70.9MB in the beginning and 314.6MB in the end (delta: -243.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:17:39,835 INFO L158 Benchmark]: Witness Printer took 5.66ms. Allocated memory is still 352.3MB. Free memory was 314.6MB in the beginning and 314.5MB in the end (delta: 72.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:17:39,839 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 167.8MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 247.58ms. Allocated memory is still 117.4MB. Free memory was 93.4MB in the beginning and 83.1MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.76ms. Allocated memory is still 117.4MB. Free memory was 83.1MB in the beginning and 82.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.80ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 80.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 288.69ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 71.3MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 14994.20ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 70.9MB in the beginning and 314.6MB in the end (delta: -243.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.66ms. Allocated memory is still 352.3MB. Free memory was 314.6MB in the beginning and 314.5MB in the end (delta: 72.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #t~ret4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #t~ret4 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 8 terminating modules (3 trivial, 2 deterministic, 3 nondeterministic). One deterministic module has affine ranking function (211 + ((long long) -2 * \old(x))) and consists of 5 locations. One deterministic module has affine ranking function null and consists of 8 locations. One nondeterministic module has affine ranking function (((long long) -2 * x) + 189) and consists of 6 locations. One nondeterministic module has affine ranking function (((long long) -1 * \old(x)) + 90) and consists of 21 locations. One nondeterministic module has affine ranking function null and consists of 8 locations. 3 modules have a trivial ranking function, the largest among these consists of 17 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 14.9s and 6 iterations. TraceHistogramMax:7. Analysis of lassos took 6.8s. Construction of modules took 1.0s. Büchi inclusion checks took 6.8s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 6. Automata minimization 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 65 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 3, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 12/24 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 261 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 246 mSDsluCounter, 445 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 275 mSDsCounter, 205 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 984 IncrementalHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 205 mSolverCounterUnsat, 170 mSDtfsCounter, 984 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq176 hnf90 smp100 dnf100 smp100 tf110 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 41ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-23 23:17:39,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-23 23:17:40,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-23 23:17:40,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-23 23:17:40,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b39f70f-c63d-4f7d-a782-f238401a1b65/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE