./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/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_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/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 64bit --witnessprinter.graph.data.programhash 7fe3843d41a84d22889162aaa1c2b6d18f44faeeac702eea9c45f49a2c72d4bd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 02:02:33,405 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 02:02:33,511 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-24 02:02:33,525 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 02:02:33,525 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 02:02:33,579 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 02:02:33,580 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 02:02:33,580 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 02:02:33,580 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 02:02:33,581 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 02:02:33,582 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 02:02:33,582 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 02:02:33,582 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 02:02:33,583 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-24 02:02:33,585 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-24 02:02:33,585 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-24 02:02:33,585 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-24 02:02:33,585 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-24 02:02:33,585 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-24 02:02:33,586 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 02:02:33,586 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-24 02:02:33,586 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 02:02:33,586 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 02:02:33,586 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-24 02:02:33,586 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-24 02:02:33,587 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-24 02:02:33,587 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 02:02:33,587 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 02:02:33,588 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-24 02:02:33,588 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 02:02:33,589 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 02:02:33,589 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 02:02:33,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:02:33,589 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 02:02:33,589 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-24 02:02:33,590 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-24 02:02:33,590 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_1db09ddd-53d1-40e5-afc5-068dae03614b/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7fe3843d41a84d22889162aaa1c2b6d18f44faeeac702eea9c45f49a2c72d4bd [2024-11-24 02:02:34,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 02:02:34,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 02:02:34,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 02:02:34,042 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 02:02:34,042 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 02:02:34,044 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig4.c [2024-11-24 02:02:38,100 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/data/363091095/3cd4e2a049eb4dc09bec04d2d59ae498/FLAG8d2e59f36 [2024-11-24 02:02:38,500 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 02:02:38,502 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig4.c [2024-11-24 02:02:38,514 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/data/363091095/3cd4e2a049eb4dc09bec04d2d59ae498/FLAG8d2e59f36 [2024-11-24 02:02:38,546 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/data/363091095/3cd4e2a049eb4dc09bec04d2d59ae498 [2024-11-24 02:02:38,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 02:02:38,569 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 02:02:38,573 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 02:02:38,577 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 02:02:38,594 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 02:02:38,595 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:02:38" (1/1) ... [2024-11-24 02:02:38,600 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b36a4c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:38, skipping insertion in model container [2024-11-24 02:02:38,601 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:02:38" (1/1) ... [2024-11-24 02:02:38,634 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 02:02:38,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:02:38,914 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 02:02:38,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:02:38,952 INFO L204 MainTranslator]: Completed translation [2024-11-24 02:02:38,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:38 WrapperNode [2024-11-24 02:02:38,953 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 02:02:38,955 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 02:02:38,955 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 02:02:38,956 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 02:02:38,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:38" (1/1) ... [2024-11-24 02:02:38,973 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:38" (1/1) ... [2024-11-24 02:02:38,997 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2024-11-24 02:02:38,998 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 02:02:38,999 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 02:02:38,999 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 02:02:38,999 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 02:02:39,013 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:38" (1/1) ... [2024-11-24 02:02:39,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:38" (1/1) ... [2024-11-24 02:02:39,015 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:38" (1/1) ... [2024-11-24 02:02:39,024 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-24 02:02:39,025 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:38" (1/1) ... [2024-11-24 02:02:39,026 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:38" (1/1) ... [2024-11-24 02:02:39,029 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:38" (1/1) ... [2024-11-24 02:02:39,031 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:38" (1/1) ... [2024-11-24 02:02:39,041 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:38" (1/1) ... [2024-11-24 02:02:39,042 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:38" (1/1) ... [2024-11-24 02:02:39,043 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:38" (1/1) ... [2024-11-24 02:02:39,047 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 02:02:39,048 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 02:02:39,050 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 02:02:39,050 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 02:02:39,052 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:38" (1/1) ... [2024-11-24 02:02:39,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:39,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:39,118 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:39,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-24 02:02:39,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 02:02:39,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 02:02:39,300 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 02:02:39,304 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 02:02:39,425 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-24 02:02:39,427 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 02:02:39,447 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 02:02:39,448 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 02:02:39,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:02:39 BoogieIcfgContainer [2024-11-24 02:02:39,450 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 02:02:39,451 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-24 02:02:39,452 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-24 02:02:39,465 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-24 02:02:39,466 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-24 02:02:39,467 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 24.11 02:02:38" (1/3) ... [2024-11-24 02:02:39,470 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75ba0494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 24.11 02:02:39, skipping insertion in model container [2024-11-24 02:02:39,470 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-24 02:02:39,470 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:38" (2/3) ... [2024-11-24 02:02:39,471 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75ba0494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 24.11 02:02:39, skipping insertion in model container [2024-11-24 02:02:39,472 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-24 02:02:39,472 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:02:39" (3/3) ... [2024-11-24 02:02:39,474 INFO L363 chiAutomizerObserver]: Analyzing ICFG PodelskiRybalchenko-TACAS2011-Fig4.c [2024-11-24 02:02:39,569 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-24 02:02:39,569 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-24 02:02:39,570 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-24 02:02:39,570 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-24 02:02:39,570 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-24 02:02:39,570 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-24 02:02:39,570 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-24 02:02:39,571 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-24 02:02:39,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:02:39,611 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-24 02:02:39,612 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-24 02:02:39,612 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-24 02:02:39,621 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-24 02:02:39,621 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-24 02:02:39,621 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-24 02:02:39,622 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:02:39,623 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-24 02:02:39,623 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-24 02:02:39,624 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-24 02:02:39,624 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-24 02:02:39,624 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-24 02:02:39,636 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" [2024-11-24 02:02:39,637 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 > 0 && main_~y~0#1 > 0;" "havoc main_#t~nondet2#1;" "assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := main_~y~0#1 - 1;" [2024-11-24 02:02:39,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:39,646 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-24 02:02:39,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 02:02:39,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881728369] [2024-11-24 02:02:39,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:39,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:02:39,778 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 02:02:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:02:39,809 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 02:02:39,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:39,815 INFO L85 PathProgramCache]: Analyzing trace with hash 37868, now seen corresponding path program 1 times [2024-11-24 02:02:39,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 02:02:39,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905556087] [2024-11-24 02:02:39,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:39,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:02:39,842 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 02:02:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:02:39,855 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 02:02:39,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:39,861 INFO L85 PathProgramCache]: Analyzing trace with hash 28696810, now seen corresponding path program 1 times [2024-11-24 02:02:39,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 02:02:39,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734991108] [2024-11-24 02:02:39,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:39,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:02:39,881 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 02:02:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:02:39,896 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 02:02:40,061 INFO L204 LassoAnalysis]: Preferences: [2024-11-24 02:02:40,062 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-24 02:02:40,062 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-24 02:02:40,063 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-24 02:02:40,063 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-24 02:02:40,063 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:40,063 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-24 02:02:40,063 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-24 02:02:40,064 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig4.c_Iteration1_Loop [2024-11-24 02:02:40,064 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-24 02:02:40,064 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-24 02:02:40,084 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:40,111 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:40,122 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:40,131 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:40,160 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:40,355 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-24 02:02:40,356 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-24 02:02:40,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:40,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:40,366 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:40,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-24 02:02:40,373 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-24 02:02:40,373 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 02:02:40,425 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-24 02:02:40,425 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-24 02:02:40,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-11-24 02:02:40,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:40,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:40,447 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:40,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-24 02:02:40,453 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-24 02:02:40,453 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 02:02:40,491 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-24 02:02:40,491 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-24 02:02:40,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-24 02:02:40,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:40,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:40,510 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:40,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-24 02:02:40,517 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-24 02:02:40,517 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 02:02:40,558 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-24 02:02:40,558 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=1} Honda state: {ULTIMATE.start_main_~x~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-24 02:02:40,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-24 02:02:40,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:40,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:40,577 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:40,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-24 02:02:40,584 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-24 02:02:40,584 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 02:02:40,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-24 02:02:40,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:40,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:40,631 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:40,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-24 02:02:40,638 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-24 02:02:40,639 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 02:02:40,710 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-24 02:02:40,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-24 02:02:40,716 INFO L204 LassoAnalysis]: Preferences: [2024-11-24 02:02:40,716 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-24 02:02:40,716 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-24 02:02:40,716 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-24 02:02:40,716 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-24 02:02:40,717 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:40,717 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-24 02:02:40,717 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-24 02:02:40,717 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig4.c_Iteration1_Loop [2024-11-24 02:02:40,717 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-24 02:02:40,717 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-24 02:02:40,722 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:40,731 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:40,741 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:40,749 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:40,774 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:40,916 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-24 02:02:40,925 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-24 02:02:40,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:40,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:40,934 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:40,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-24 02:02:40,940 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 [2024-11-24 02:02:40,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-24 02:02:40,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-24 02:02:40,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-24 02:02:40,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-24 02:02:40,982 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-24 02:02:40,983 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-24 02:02:40,994 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-24 02:02:41,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-24 02:02:41,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:41,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:41,013 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:41,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-24 02:02:41,019 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 [2024-11-24 02:02:41,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-24 02:02:41,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-24 02:02:41,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-24 02:02:41,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-24 02:02:41,046 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-24 02:02:41,047 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-24 02:02:41,066 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-24 02:02:41,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-24 02:02:41,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:41,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:41,086 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:41,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-24 02:02:41,091 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 [2024-11-24 02:02:41,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-24 02:02:41,115 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-24 02:02:41,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-24 02:02:41,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-24 02:02:41,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-24 02:02:41,117 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-24 02:02:41,118 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-24 02:02:41,128 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-24 02:02:41,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-24 02:02:41,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:41,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:41,157 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:41,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-24 02:02:41,164 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-24 02:02:41,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-24 02:02:41,188 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-24 02:02:41,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-24 02:02:41,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-24 02:02:41,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-24 02:02:41,192 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-24 02:02:41,193 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-24 02:02:41,200 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-24 02:02:41,208 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-24 02:02:41,216 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-24 02:02:41,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:41,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:41,225 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:41,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-24 02:02:41,229 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-24 02:02:41,231 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-24 02:02:41,231 INFO L474 LassoAnalysis]: Proved termination. [2024-11-24 02:02:41,232 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-24 02:02:41,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-24 02:02:41,253 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-24 02:02:41,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:41,320 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 02:02:41,321 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:02:41,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:41,345 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 02:02:41,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:02:41,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:02:41,443 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-24 02:02:41,446 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:02:41,536 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 27 transitions. Complement of second has 6 states. [2024-11-24 02:02:41,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-24 02:02:41,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:02:41,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2024-11-24 02:02:41,561 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 2 letters. Loop has 3 letters. [2024-11-24 02:02:41,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 02:02:41,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 3 letters. [2024-11-24 02:02:41,564 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 02:02:41,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 2 letters. Loop has 6 letters. [2024-11-24 02:02:41,565 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 02:02:41,566 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 27 transitions. [2024-11-24 02:02:41,568 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-24 02:02:41,574 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 11 states and 14 transitions. [2024-11-24 02:02:41,575 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-11-24 02:02:41,576 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-24 02:02:41,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2024-11-24 02:02:41,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-24 02:02:41,578 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-11-24 02:02:41,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2024-11-24 02:02:41,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-11-24 02:02:41,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:02:41,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2024-11-24 02:02:41,618 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-11-24 02:02:41,618 INFO L425 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-11-24 02:02:41,618 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-24 02:02:41,619 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2024-11-24 02:02:41,619 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-24 02:02:41,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-24 02:02:41,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-24 02:02:41,620 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-24 02:02:41,621 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-24 02:02:41,621 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~x~0#1 > 0 && main_~y~0#1 > 0;" "havoc main_#t~nondet2#1;" "assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet3#1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;" [2024-11-24 02:02:41,622 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 > 0 && main_~y~0#1 > 0;" "havoc main_#t~nondet2#1;" "assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := main_~y~0#1 - 1;" [2024-11-24 02:02:41,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:41,624 INFO L85 PathProgramCache]: Analyzing trace with hash 28696808, now seen corresponding path program 1 times [2024-11-24 02:02:41,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 02:02:41,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069278201] [2024-11-24 02:02:41,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:41,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:02:41,640 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 02:02:41,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:02:41,652 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 02:02:41,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:41,655 INFO L85 PathProgramCache]: Analyzing trace with hash 37868, now seen corresponding path program 2 times [2024-11-24 02:02:41,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 02:02:41,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639960363] [2024-11-24 02:02:41,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:41,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:02:41,672 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 02:02:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:02:41,679 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 02:02:41,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:41,682 INFO L85 PathProgramCache]: Analyzing trace with hash 208123301, now seen corresponding path program 1 times [2024-11-24 02:02:41,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 02:02:41,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060492637] [2024-11-24 02:02:41,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:41,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:02:41,707 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 02:02:41,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:02:41,719 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 02:02:41,777 INFO L204 LassoAnalysis]: Preferences: [2024-11-24 02:02:41,777 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-24 02:02:41,777 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-24 02:02:41,777 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-24 02:02:41,778 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-24 02:02:41,778 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:41,778 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-24 02:02:41,778 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-24 02:02:41,778 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig4.c_Iteration2_Loop [2024-11-24 02:02:41,778 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-24 02:02:41,778 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-24 02:02:41,780 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:41,794 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:41,801 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:41,806 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:41,811 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:41,894 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-24 02:02:41,894 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-24 02:02:41,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:41,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:41,899 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:41,903 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-24 02:02:41,903 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 02:02:41,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-24 02:02:41,940 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-24 02:02:41,940 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-24 02:02:41,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-24 02:02:41,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:41,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:41,959 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:41,965 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-24 02:02:41,966 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 02:02:41,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-24 02:02:42,005 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-24 02:02:42,006 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-24 02:02:42,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-11-24 02:02:42,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:42,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:42,025 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:42,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-24 02:02:42,033 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-24 02:02:42,033 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 02:02:42,072 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-24 02:02:42,072 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=1} Honda state: {ULTIMATE.start_main_~x~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-24 02:02:42,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-24 02:02:42,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:42,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:42,088 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:42,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-24 02:02:42,093 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-24 02:02:42,093 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 02:02:42,114 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-24 02:02:42,114 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-24 02:02:42,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-11-24 02:02:42,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:42,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:42,129 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:42,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-24 02:02:42,136 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-24 02:02:42,136 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 02:02:42,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-24 02:02:42,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:42,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:42,173 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:42,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-24 02:02:42,176 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-24 02:02:42,176 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 02:02:42,215 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-24 02:02:42,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-24 02:02:42,218 INFO L204 LassoAnalysis]: Preferences: [2024-11-24 02:02:42,218 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-24 02:02:42,219 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-24 02:02:42,219 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-24 02:02:42,219 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-24 02:02:42,219 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:42,219 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-24 02:02:42,219 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-24 02:02:42,219 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig4.c_Iteration2_Loop [2024-11-24 02:02:42,219 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-24 02:02:42,219 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-24 02:02:42,221 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:42,228 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:42,234 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:42,241 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:42,246 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:42,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-24 02:02:42,383 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-24 02:02:42,383 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-24 02:02:42,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:42,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:42,388 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:42,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-24 02:02:42,392 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 [2024-11-24 02:02:42,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-24 02:02:42,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-24 02:02:42,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-24 02:02:42,413 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-24 02:02:42,420 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-24 02:02:42,422 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-24 02:02:42,430 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-24 02:02:42,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-24 02:02:42,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:42,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:42,446 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:42,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-24 02:02:42,452 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 [2024-11-24 02:02:42,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-24 02:02:42,470 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-24 02:02:42,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-24 02:02:42,470 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-24 02:02:42,470 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-24 02:02:42,471 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-24 02:02:42,471 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-24 02:02:42,474 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-24 02:02:42,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-24 02:02:42,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:42,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:42,490 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:42,495 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 [2024-11-24 02:02:42,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-24 02:02:42,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-24 02:02:42,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-24 02:02:42,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-24 02:02:42,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-24 02:02:42,526 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-24 02:02:42,526 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-24 02:02:42,538 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-24 02:02:42,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-24 02:02:42,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:42,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:42,557 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:42,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-24 02:02:42,563 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 [2024-11-24 02:02:42,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-24 02:02:42,582 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-24 02:02:42,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-24 02:02:42,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-24 02:02:42,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-24 02:02:42,584 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-24 02:02:42,584 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-24 02:02:42,589 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-24 02:02:42,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-11-24 02:02:42,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:42,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:42,605 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:42,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-24 02:02:42,611 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 [2024-11-24 02:02:42,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-24 02:02:42,630 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-24 02:02:42,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-24 02:02:42,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-24 02:02:42,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-24 02:02:42,631 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-24 02:02:42,631 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-24 02:02:42,636 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-24 02:02:42,643 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-24 02:02:42,643 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-24 02:02:42,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:42,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:42,646 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:42,651 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-24 02:02:42,652 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-24 02:02:42,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-24 02:02:42,652 INFO L474 LassoAnalysis]: Proved termination. [2024-11-24 02:02:42,652 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-24 02:02:42,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-24 02:02:42,666 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-24 02:02:42,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:42,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:42,712 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 02:02:42,712 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:02:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:42,735 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 02:02:42,736 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:02:42,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:02:42,781 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-24 02:02:42,782 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:02:42,821 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 22 transitions. Complement of second has 5 states. [2024-11-24 02:02:42,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-24 02:02:42,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:02:42,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-11-24 02:02:42,824 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 3 letters. [2024-11-24 02:02:42,825 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 02:02:42,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 3 letters. [2024-11-24 02:02:42,825 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 02:02:42,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 6 letters. [2024-11-24 02:02:42,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 02:02:42,826 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 22 transitions. [2024-11-24 02:02:42,827 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-24 02:02:42,828 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 22 transitions. [2024-11-24 02:02:42,828 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-11-24 02:02:42,828 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-11-24 02:02:42,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2024-11-24 02:02:42,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-24 02:02:42,829 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2024-11-24 02:02:42,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2024-11-24 02:02:42,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-24 02:02:42,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:02:42,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2024-11-24 02:02:42,832 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2024-11-24 02:02:42,832 INFO L425 stractBuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2024-11-24 02:02:42,832 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-24 02:02:42,832 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2024-11-24 02:02:42,833 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-24 02:02:42,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-24 02:02:42,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-24 02:02:42,834 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1] [2024-11-24 02:02:42,834 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-24 02:02:42,835 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~x~0#1 > 0 && main_~y~0#1 > 0;" "havoc main_#t~nondet2#1;" "assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet3#1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;" "assume main_~x~0#1 > 0 && main_~y~0#1 > 0;" "havoc main_#t~nondet2#1;" "assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet3#1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;" [2024-11-24 02:02:42,835 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 > 0 && main_~y~0#1 > 0;" "havoc main_#t~nondet2#1;" "assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := main_~y~0#1 - 1;" [2024-11-24 02:02:42,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:42,835 INFO L85 PathProgramCache]: Analyzing trace with hash 208123299, now seen corresponding path program 2 times [2024-11-24 02:02:42,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 02:02:42,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407222953] [2024-11-24 02:02:42,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:42,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:42,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:02:42,845 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 02:02:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:02:42,853 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 02:02:42,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:42,853 INFO L85 PathProgramCache]: Analyzing trace with hash 37868, now seen corresponding path program 3 times [2024-11-24 02:02:42,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 02:02:42,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317876650] [2024-11-24 02:02:42,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:42,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:02:42,860 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 02:02:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:02:42,864 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 02:02:42,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:42,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1731566838, now seen corresponding path program 2 times [2024-11-24 02:02:42,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 02:02:42,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21142152] [2024-11-24 02:02:42,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:42,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:42,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:02:42,875 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 02:02:42,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:02:42,884 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 02:02:42,923 INFO L204 LassoAnalysis]: Preferences: [2024-11-24 02:02:42,923 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-24 02:02:42,924 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-24 02:02:42,924 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-24 02:02:42,924 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-24 02:02:42,924 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:42,924 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-24 02:02:42,924 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-24 02:02:42,924 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig4.c_Iteration3_Loop [2024-11-24 02:02:42,924 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-24 02:02:42,924 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-24 02:02:42,926 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:42,937 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:42,941 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:42,945 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:42,950 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:43,031 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-24 02:02:43,031 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-24 02:02:43,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:43,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:43,036 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:43,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-24 02:02:43,043 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-24 02:02:43,044 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 02:02:43,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-24 02:02:43,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:43,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:43,085 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:43,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-24 02:02:43,090 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-24 02:02:43,090 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 02:02:43,137 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-24 02:02:43,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-11-24 02:02:43,142 INFO L204 LassoAnalysis]: Preferences: [2024-11-24 02:02:43,143 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-24 02:02:43,143 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-24 02:02:43,143 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-24 02:02:43,143 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-24 02:02:43,143 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:43,143 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-24 02:02:43,143 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-24 02:02:43,143 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig4.c_Iteration3_Loop [2024-11-24 02:02:43,143 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-24 02:02:43,143 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-24 02:02:43,145 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:43,150 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:43,161 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:43,167 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:43,172 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:43,242 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-24 02:02:43,243 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-24 02:02:43,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:43,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:43,245 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:43,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-24 02:02:43,251 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 [2024-11-24 02:02:43,271 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-24 02:02:43,271 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-24 02:02:43,271 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-24 02:02:43,271 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-24 02:02:43,271 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-24 02:02:43,272 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-24 02:02:43,272 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-24 02:02:43,276 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-24 02:02:43,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-24 02:02:43,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:43,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:43,291 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:43,296 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 [2024-11-24 02:02:43,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-24 02:02:43,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-24 02:02:43,315 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-24 02:02:43,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-24 02:02:43,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-24 02:02:43,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-24 02:02:43,317 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-24 02:02:43,317 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-24 02:02:43,321 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-24 02:02:43,325 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-24 02:02:43,325 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-24 02:02:43,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:43,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:43,329 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:43,334 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-24 02:02:43,334 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-24 02:02:43,334 INFO L474 LassoAnalysis]: Proved termination. [2024-11-24 02:02:43,334 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-24 02:02:43,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-24 02:02:43,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-24 02:02:43,348 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-24 02:02:43,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:43,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:43,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 02:02:43,382 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:02:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:43,407 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 02:02:43,408 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:02:43,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:02:43,440 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-24 02:02:43,440 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:02:43,469 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 21 states and 28 transitions. Complement of second has 5 states. [2024-11-24 02:02:43,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-24 02:02:43,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:02:43,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-11-24 02:02:43,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 3 letters. [2024-11-24 02:02:43,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 02:02:43,471 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-24 02:02:43,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:43,502 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 02:02:43,503 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:02:43,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:43,537 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 02:02:43,537 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:02:43,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:02:43,579 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-24 02:02:43,580 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:02:43,611 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 21 states and 28 transitions. Complement of second has 5 states. [2024-11-24 02:02:43,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-24 02:02:43,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:02:43,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-11-24 02:02:43,613 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 3 letters. [2024-11-24 02:02:43,613 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 02:02:43,613 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-24 02:02:43,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:43,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:43,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 02:02:43,644 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:02:43,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:43,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 02:02:43,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:02:43,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:02:43,725 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-24 02:02:43,725 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:02:43,758 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 32 transitions. Complement of second has 4 states. [2024-11-24 02:02:43,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-24 02:02:43,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:02:43,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2024-11-24 02:02:43,763 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 3 letters. [2024-11-24 02:02:43,763 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 02:02:43,763 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 11 letters. Loop has 3 letters. [2024-11-24 02:02:43,764 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 02:02:43,764 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 6 letters. [2024-11-24 02:02:43,764 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 02:02:43,764 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 32 transitions. [2024-11-24 02:02:43,766 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-24 02:02:43,767 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 20 states and 26 transitions. [2024-11-24 02:02:43,767 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-11-24 02:02:43,767 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-11-24 02:02:43,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 26 transitions. [2024-11-24 02:02:43,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-24 02:02:43,768 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 26 transitions. [2024-11-24 02:02:43,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 26 transitions. [2024-11-24 02:02:43,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 8. [2024-11-24 02:02:43,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:02:43,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2024-11-24 02:02:43,770 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2024-11-24 02:02:43,770 INFO L425 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2024-11-24 02:02:43,770 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-24 02:02:43,770 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2024-11-24 02:02:43,771 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-24 02:02:43,771 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-24 02:02:43,771 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-24 02:02:43,771 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-24 02:02:43,771 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-24 02:02:43,772 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" [2024-11-24 02:02:43,772 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 > 0 && main_~y~0#1 > 0;" "havoc main_#t~nondet2#1;" "assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet3#1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;" [2024-11-24 02:02:43,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:43,772 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-11-24 02:02:43,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 02:02:43,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330979252] [2024-11-24 02:02:43,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:43,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:43,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:02:43,777 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 02:02:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:02:43,779 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 02:02:43,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:43,779 INFO L85 PathProgramCache]: Analyzing trace with hash 37866, now seen corresponding path program 1 times [2024-11-24 02:02:43,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 02:02:43,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39604184] [2024-11-24 02:02:43,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:43,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:43,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:02:43,785 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 02:02:43,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:02:43,789 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 02:02:43,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:43,790 INFO L85 PathProgramCache]: Analyzing trace with hash 28696808, now seen corresponding path program 3 times [2024-11-24 02:02:43,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 02:02:43,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902740774] [2024-11-24 02:02:43,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:43,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:02:43,801 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 02:02:43,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:02:43,813 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 02:02:43,863 INFO L204 LassoAnalysis]: Preferences: [2024-11-24 02:02:43,863 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-24 02:02:43,863 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-24 02:02:43,863 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-24 02:02:43,863 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-24 02:02:43,863 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:43,863 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-24 02:02:43,863 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-24 02:02:43,863 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig4.c_Iteration4_Loop [2024-11-24 02:02:43,863 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-24 02:02:43,863 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-24 02:02:43,865 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:43,872 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:43,876 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:43,882 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:43,894 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:43,902 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:43,974 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-24 02:02:43,974 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-24 02:02:43,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:43,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:43,977 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:43,982 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-24 02:02:43,982 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 02:02:43,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-24 02:02:44,007 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-24 02:02:44,007 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=0} Honda state: {ULTIMATE.start_main_#t~nondet3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-24 02:02:44,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-11-24 02:02:44,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:44,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:44,023 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:44,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-24 02:02:44,029 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-24 02:02:44,029 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 02:02:44,053 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-24 02:02:44,053 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-24 02:02:44,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-11-24 02:02:44,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:44,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:44,066 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:44,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-24 02:02:44,069 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-24 02:02:44,069 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 02:02:44,094 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-24 02:02:44,094 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=1} Honda state: {ULTIMATE.start_main_~y~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-24 02:02:44,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-24 02:02:44,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:44,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:44,104 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:44,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-24 02:02:44,108 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-24 02:02:44,108 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 02:02:44,133 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-24 02:02:44,133 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-24 02:02:44,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-11-24 02:02:44,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:44,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:44,144 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:44,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-24 02:02:44,148 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-24 02:02:44,148 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 02:02:44,176 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-24 02:02:44,176 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-24 02:02:44,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-11-24 02:02:44,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:44,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:44,186 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:44,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-24 02:02:44,189 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-24 02:02:44,190 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 02:02:44,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-11-24 02:02:44,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:44,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:44,215 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:44,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-24 02:02:44,219 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-24 02:02:44,219 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 02:02:44,262 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-24 02:02:44,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-11-24 02:02:44,269 INFO L204 LassoAnalysis]: Preferences: [2024-11-24 02:02:44,269 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-24 02:02:44,269 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-24 02:02:44,269 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-24 02:02:44,269 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-24 02:02:44,269 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:44,269 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-24 02:02:44,269 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-24 02:02:44,269 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig4.c_Iteration4_Loop [2024-11-24 02:02:44,269 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-24 02:02:44,269 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-24 02:02:44,271 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:44,277 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:44,283 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:44,286 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:44,298 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:44,307 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 02:02:44,393 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-24 02:02:44,394 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-24 02:02:44,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:44,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:44,401 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:44,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-24 02:02:44,406 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 [2024-11-24 02:02:44,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-24 02:02:44,425 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-24 02:02:44,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-24 02:02:44,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-24 02:02:44,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-24 02:02:44,426 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-24 02:02:44,427 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-24 02:02:44,429 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-24 02:02:44,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-11-24 02:02:44,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:44,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:44,446 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:44,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-24 02:02:44,452 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 [2024-11-24 02:02:44,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-24 02:02:44,473 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-24 02:02:44,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-24 02:02:44,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-24 02:02:44,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-24 02:02:44,474 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-24 02:02:44,474 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-24 02:02:44,478 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-24 02:02:44,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2024-11-24 02:02:44,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:44,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:44,494 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:44,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-24 02:02:44,504 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-24 02:02:44,521 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-24 02:02:44,521 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-24 02:02:44,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-24 02:02:44,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-24 02:02:44,522 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-24 02:02:44,522 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-24 02:02:44,522 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-24 02:02:44,524 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-24 02:02:44,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2024-11-24 02:02:44,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:44,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:44,534 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:44,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-11-24 02:02:44,537 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 [2024-11-24 02:02:44,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-24 02:02:44,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-24 02:02:44,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-24 02:02:44,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-24 02:02:44,558 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-24 02:02:44,558 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-24 02:02:44,566 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-24 02:02:44,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-11-24 02:02:44,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:44,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:44,583 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:44,589 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 [2024-11-24 02:02:44,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-24 02:02:44,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-24 02:02:44,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-24 02:02:44,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-24 02:02:44,608 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-24 02:02:44,611 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-24 02:02:44,611 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-24 02:02:44,617 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-24 02:02:44,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-11-24 02:02:44,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:44,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:44,634 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:44,639 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 [2024-11-24 02:02:44,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-11-24 02:02:44,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-24 02:02:44,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-24 02:02:44,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-24 02:02:44,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-24 02:02:44,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-24 02:02:44,660 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-24 02:02:44,660 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-24 02:02:44,664 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-24 02:02:44,669 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-24 02:02:44,669 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-24 02:02:44,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 02:02:44,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:44,673 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:44,678 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-24 02:02:44,678 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-24 02:02:44,678 INFO L474 LassoAnalysis]: Proved termination. [2024-11-24 02:02:44,678 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-24 02:02:44,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-11-24 02:02:44,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2024-11-24 02:02:44,693 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-24 02:02:44,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:44,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:44,726 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 02:02:44,727 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:02:44,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:44,736 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 02:02:44,737 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:02:44,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:02:44,774 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-24 02:02:44,774 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:02:44,800 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 23 transitions. Complement of second has 4 states. [2024-11-24 02:02:44,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-24 02:02:44,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:02:44,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-11-24 02:02:44,803 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 3 letters. [2024-11-24 02:02:44,803 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 02:02:44,803 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 3 letters. [2024-11-24 02:02:44,803 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 02:02:44,804 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 6 letters. [2024-11-24 02:02:44,804 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 02:02:44,804 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2024-11-24 02:02:44,805 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-24 02:02:44,805 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2024-11-24 02:02:44,806 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-24 02:02:44,806 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-24 02:02:44,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-24 02:02:44,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-24 02:02:44,806 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 02:02:44,806 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 02:02:44,806 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 02:02:44,806 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-24 02:02:44,806 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-24 02:02:44,806 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-24 02:02:44,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-24 02:02:44,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 24.11 02:02:44 BoogieIcfgContainer [2024-11-24 02:02:44,819 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-24 02:02:44,820 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 02:02:44,820 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 02:02:44,820 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 02:02:44,821 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:02:39" (3/4) ... [2024-11-24 02:02:44,824 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 02:02:44,826 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 02:02:44,828 INFO L158 Benchmark]: Toolchain (without parser) took 6262.34ms. Allocated memory is still 167.8MB. Free memory was 129.2MB in the beginning and 55.7MB in the end (delta: 73.4MB). Peak memory consumption was 73.1MB. Max. memory is 16.1GB. [2024-11-24 02:02:44,828 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 167.8MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:02:44,832 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.33ms. Allocated memory is still 167.8MB. Free memory was 129.2MB in the beginning and 119.4MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 02:02:44,832 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.98ms. Allocated memory is still 167.8MB. Free memory was 119.4MB in the beginning and 118.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:02:44,833 INFO L158 Benchmark]: Boogie Preprocessor took 48.54ms. Allocated memory is still 167.8MB. Free memory was 118.3MB in the beginning and 117.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:02:44,833 INFO L158 Benchmark]: RCFGBuilder took 401.56ms. Allocated memory is still 167.8MB. Free memory was 117.3MB in the beginning and 108.1MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 02:02:44,834 INFO L158 Benchmark]: BuchiAutomizer took 5367.51ms. Allocated memory is still 167.8MB. Free memory was 108.1MB in the beginning and 55.8MB in the end (delta: 52.3MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. [2024-11-24 02:02:44,836 INFO L158 Benchmark]: Witness Printer took 6.17ms. Allocated memory is still 167.8MB. Free memory was 55.8MB in the beginning and 55.7MB in the end (delta: 50.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:02:44,839 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 167.8MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 381.33ms. Allocated memory is still 167.8MB. Free memory was 129.2MB in the beginning and 119.4MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.98ms. Allocated memory is still 167.8MB. Free memory was 119.4MB in the beginning and 118.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.54ms. Allocated memory is still 167.8MB. Free memory was 118.3MB in the beginning and 117.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 401.56ms. Allocated memory is still 167.8MB. Free memory was 117.3MB in the beginning and 108.1MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 5367.51ms. Allocated memory is still 167.8MB. Free memory was 108.1MB in the beginning and 55.8MB in the end (delta: 52.3MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. * Witness Printer took 6.17ms. Allocated memory is still 167.8MB. Free memory was 55.8MB in the beginning and 55.7MB in the end (delta: 50.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 3 locations. One deterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.2s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 4.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 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 [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 40 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax192 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 67ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 12 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-24 02:02:44,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-11-24 02:02:45,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-11-24 02:02:45,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-24 02:02:45,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1db09ddd-53d1-40e5-afc5-068dae03614b/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