./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB --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 da22ffb72429307957b6c0c7dbecd683a89e13ab06c6f4d1911b51bf365e4d9f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:55:31,987 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:55:32,071 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-27 19:55:32,078 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:55:32,078 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:55:32,120 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:55:32,122 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:55:32,122 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:55:32,123 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:55:32,123 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:55:32,125 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:55:32,125 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:55:32,125 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:55:32,125 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-27 19:55:32,125 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-27 19:55:32,125 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-27 19:55:32,125 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-27 19:55:32,125 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-27 19:55:32,126 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-27 19:55:32,126 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:55:32,126 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-27 19:55:32,126 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:55:32,126 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:55:32,126 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-27 19:55:32,126 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-27 19:55:32,126 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-27 19:55:32,126 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 19:55:32,127 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:55:32,127 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-27 19:55:32,127 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:55:32,128 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:55:32,128 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:55:32,128 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:55:32,129 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:55:32,129 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-27 19:55:32,129 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-27 19:55:32,129 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_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB 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 -> da22ffb72429307957b6c0c7dbecd683a89e13ab06c6f4d1911b51bf365e4d9f [2024-11-27 19:55:32,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:55:32,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:55:32,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:55:32,550 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:55:32,551 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:55:32,554 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c [2024-11-27 19:55:36,226 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/data/66fdeba27/210ded0b49f44fe3be013bf5171d3301/FLAG9091a1163 [2024-11-27 19:55:36,596 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:55:36,607 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c [2024-11-27 19:55:36,621 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/data/66fdeba27/210ded0b49f44fe3be013bf5171d3301/FLAG9091a1163 [2024-11-27 19:55:36,654 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/data/66fdeba27/210ded0b49f44fe3be013bf5171d3301 [2024-11-27 19:55:36,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:55:36,662 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:55:36,664 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:55:36,665 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:55:36,671 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:55:36,672 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:55:36" (1/1) ... [2024-11-27 19:55:36,675 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72be3b00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:36, skipping insertion in model container [2024-11-27 19:55:36,676 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:55:36" (1/1) ... [2024-11-27 19:55:36,695 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:55:36,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:55:36,898 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:55:36,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:55:36,933 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:55:36,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:36 WrapperNode [2024-11-27 19:55:36,934 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:55:36,935 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:55:36,935 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:55:36,936 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:55:36,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:36" (1/1) ... [2024-11-27 19:55:36,958 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:36" (1/1) ... [2024-11-27 19:55:36,978 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2024-11-27 19:55:36,979 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:55:36,980 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:55:36,980 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:55:36,980 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:55:36,991 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:36" (1/1) ... [2024-11-27 19:55:36,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:36" (1/1) ... [2024-11-27 19:55:36,992 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:36" (1/1) ... [2024-11-27 19:55:37,001 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-27 19:55:37,002 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:36" (1/1) ... [2024-11-27 19:55:37,002 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:36" (1/1) ... [2024-11-27 19:55:37,005 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:36" (1/1) ... [2024-11-27 19:55:37,007 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:36" (1/1) ... [2024-11-27 19:55:37,015 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:36" (1/1) ... [2024-11-27 19:55:37,016 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:36" (1/1) ... [2024-11-27 19:55:37,020 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:36" (1/1) ... [2024-11-27 19:55:37,022 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:55:37,023 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:55:37,023 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:55:37,023 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:55:37,028 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:36" (1/1) ... [2024-11-27 19:55:37,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:37,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:37,075 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:37,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-27 19:55:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:55:37,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:55:37,192 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:55:37,195 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:55:37,286 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-27 19:55:37,286 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:55:37,300 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:55:37,300 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 19:55:37,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:55:37 BoogieIcfgContainer [2024-11-27 19:55:37,301 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:55:37,303 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-27 19:55:37,303 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-27 19:55:37,311 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-27 19:55:37,312 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 19:55:37,312 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.11 07:55:36" (1/3) ... [2024-11-27 19:55:37,313 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54f8fbcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 07:55:37, skipping insertion in model container [2024-11-27 19:55:37,314 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 19:55:37,314 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:55:36" (2/3) ... [2024-11-27 19:55:37,315 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54f8fbcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 07:55:37, skipping insertion in model container [2024-11-27 19:55:37,315 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 19:55:37,315 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:55:37" (3/3) ... [2024-11-27 19:55:37,316 INFO L363 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7a.c [2024-11-27 19:55:37,379 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-27 19:55:37,380 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-27 19:55:37,380 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-27 19:55:37,380 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-27 19:55:37,380 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-27 19:55:37,381 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-27 19:55:37,381 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-27 19:55:37,381 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-27 19:55:37,388 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) [2024-11-27 19:55:37,408 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 19:55:37,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 19:55:37,410 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 19:55:37,416 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 19:55:37,417 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-27 19:55:37,417 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-27 19:55:37,418 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) [2024-11-27 19:55:37,419 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 19:55:37,420 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 19:55:37,420 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 19:55:37,420 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 19:55:37,420 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-27 19:55:37,428 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" [2024-11-27 19:55:37,429 INFO L749 eck$LassoCheckResult]: Loop: "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" "havoc main_#t~nondet3#1;" "assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;havoc main_#t~nondet5#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1;" [2024-11-27 19:55:37,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:37,435 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-27 19:55:37,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:55:37,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996079628] [2024-11-27 19:55:37,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:37,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:37,524 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:55:37,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:37,545 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 19:55:37,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:37,549 INFO L85 PathProgramCache]: Analyzing trace with hash 37868, now seen corresponding path program 1 times [2024-11-27 19:55:37,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:55:37,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352430167] [2024-11-27 19:55:37,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:37,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:37,562 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:55:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:37,576 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 19:55:37,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:37,580 INFO L85 PathProgramCache]: Analyzing trace with hash 28696810, now seen corresponding path program 1 times [2024-11-27 19:55:37,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:55:37,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72430151] [2024-11-27 19:55:37,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:37,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:37,598 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:55:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:37,615 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 19:55:37,818 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 19:55:37,819 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 19:55:37,819 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 19:55:37,820 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 19:55:37,820 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 19:55:37,820 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:37,822 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 19:55:37,822 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 19:55:37,823 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration1_Loop [2024-11-27 19:55:37,823 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 19:55:37,823 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 19:55:37,845 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:37,874 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:37,884 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:37,894 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:37,903 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:37,924 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:37,931 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:38,086 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 19:55:38,087 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 19:55:38,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:38,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:38,095 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:38,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-27 19:55:38,099 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 19:55:38,100 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:38,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-27 19:55:38,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:38,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:38,131 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:38,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-27 19:55:38,134 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 19:55:38,134 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:38,174 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 19:55:38,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-27 19:55:38,179 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 19:55:38,179 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 19:55:38,179 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 19:55:38,179 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 19:55:38,179 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 19:55:38,179 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:38,179 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 19:55:38,180 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 19:55:38,180 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration1_Loop [2024-11-27 19:55:38,180 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 19:55:38,180 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 19:55:38,183 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:38,195 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:38,199 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:38,205 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:38,211 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:38,222 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:38,227 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:38,342 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 19:55:38,347 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 19:55:38,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:38,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:38,351 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:38,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-27 19:55:38,357 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 [2024-11-27 19:55:38,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 19:55:38,376 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 19:55:38,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 19:55:38,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 19:55:38,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 19:55:38,389 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 19:55:38,389 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 19:55:38,395 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 19:55:38,403 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-27 19:55:38,407 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-27 19:55:38,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:38,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:38,415 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:38,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-27 19:55:38,418 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 19:55:38,418 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-27 19:55:38,419 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 19:55:38,419 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~d~0#1) = 1*ULTIMATE.start_main_~d~0#1 Supporting invariants [] [2024-11-27 19:55:38,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-27 19:55:38,434 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-27 19:55:38,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:38,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:38,488 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 19:55:38,489 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:38,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:38,509 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 19:55:38,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:38,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:55:38,600 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 [2024-11-27 19:55:38,603 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) [2024-11-27 19:55:38,674 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. [2024-11-27 19:55:38,676 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 [2024-11-27 19:55:38,682 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) [2024-11-27 19:55:38,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2024-11-27 19:55:38,691 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 2 letters. Loop has 3 letters. [2024-11-27 19:55:38,692 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 19:55:38,692 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 3 letters. [2024-11-27 19:55:38,692 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 19:55:38,692 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 2 letters. Loop has 6 letters. [2024-11-27 19:55:38,693 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 19:55:38,693 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 27 transitions. [2024-11-27 19:55:38,696 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 19:55:38,699 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 11 states and 14 transitions. [2024-11-27 19:55:38,701 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-11-27 19:55:38,701 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-27 19:55:38,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2024-11-27 19:55:38,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 19:55:38,703 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-11-27 19:55:38,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2024-11-27 19:55:38,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-11-27 19:55:38,738 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) [2024-11-27 19:55:38,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2024-11-27 19:55:38,740 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-11-27 19:55:38,740 INFO L425 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-11-27 19:55:38,740 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-27 19:55:38,740 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2024-11-27 19:55:38,741 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 19:55:38,741 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 19:55:38,741 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 19:55:38,741 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-27 19:55:38,741 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-27 19:55:38,742 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" "havoc main_#t~nondet3#1;" "assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet4#1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;" [2024-11-27 19:55:38,742 INFO L749 eck$LassoCheckResult]: Loop: "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" "havoc main_#t~nondet3#1;" "assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;havoc main_#t~nondet5#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1;" [2024-11-27 19:55:38,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:38,746 INFO L85 PathProgramCache]: Analyzing trace with hash 28696808, now seen corresponding path program 1 times [2024-11-27 19:55:38,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:55:38,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470304300] [2024-11-27 19:55:38,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:38,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:38,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:38,760 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:55:38,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:38,771 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 19:55:38,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:38,772 INFO L85 PathProgramCache]: Analyzing trace with hash 37868, now seen corresponding path program 2 times [2024-11-27 19:55:38,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:55:38,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155043938] [2024-11-27 19:55:38,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:38,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:38,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:38,786 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:55:38,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:38,799 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 19:55:38,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:38,800 INFO L85 PathProgramCache]: Analyzing trace with hash 208123301, now seen corresponding path program 1 times [2024-11-27 19:55:38,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:55:38,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909254021] [2024-11-27 19:55:38,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:38,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:38,820 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:55:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:38,834 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 19:55:38,919 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 19:55:38,919 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 19:55:38,919 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 19:55:38,919 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 19:55:38,919 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 19:55:38,919 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:38,919 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 19:55:38,919 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 19:55:38,920 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration2_Loop [2024-11-27 19:55:38,920 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 19:55:38,920 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 19:55:38,922 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:38,927 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:38,931 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:38,936 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:38,942 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:38,952 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:38,963 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:39,053 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 19:55:39,053 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 19:55:39,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:39,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:39,056 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:39,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-27 19:55:39,060 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 19:55:39,060 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:39,089 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 19:55:39,089 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: [] [2024-11-27 19:55:39,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-27 19:55:39,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:39,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:39,103 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:39,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-27 19:55:39,106 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 19:55:39,106 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:39,121 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 19:55:39,122 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: [] [2024-11-27 19:55:39,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-27 19:55:39,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:39,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:39,133 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:39,161 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 19:55:39,161 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:39,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-27 19:55:39,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-27 19:55:39,190 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 19:55:39,190 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: [] [2024-11-27 19:55:39,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-27 19:55:39,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:39,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:39,199 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:39,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-27 19:55:39,202 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 19:55:39,202 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:39,225 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 19:55:39,225 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: [] [2024-11-27 19:55:39,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-27 19:55:39,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:39,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:39,243 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:39,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-27 19:55:39,245 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 19:55:39,245 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:39,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-27 19:55:39,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:39,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:39,272 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:39,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-27 19:55:39,279 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 19:55:39,279 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:39,319 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 19:55:39,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-27 19:55:39,326 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 19:55:39,326 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 19:55:39,326 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 19:55:39,326 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 19:55:39,327 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 19:55:39,327 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:39,327 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 19:55:39,327 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 19:55:39,327 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration2_Loop [2024-11-27 19:55:39,327 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 19:55:39,327 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 19:55:39,331 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:39,342 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:39,345 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:39,355 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:39,360 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:39,365 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:39,375 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:39,463 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 19:55:39,463 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 19:55:39,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:39,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:39,466 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:39,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-27 19:55:39,471 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 [2024-11-27 19:55:39,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 19:55:39,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 19:55:39,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 19:55:39,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 19:55:39,494 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-27 19:55:39,494 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-27 19:55:39,502 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 19:55:39,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-27 19:55:39,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:39,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:39,519 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:39,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-27 19:55:39,523 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 [2024-11-27 19:55:39,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 19:55:39,539 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 19:55:39,539 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 19:55:39,539 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 19:55:39,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 19:55:39,540 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 19:55:39,540 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 19:55:39,543 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 19:55:39,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-27 19:55:39,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:39,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:39,557 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:39,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-27 19:55:39,562 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 [2024-11-27 19:55:39,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 19:55:39,580 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 19:55:39,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 19:55:39,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 19:55:39,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 19:55:39,582 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 19:55:39,582 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 19:55:39,587 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 19:55:39,594 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-27 19:55:39,594 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-27 19:55:39,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:39,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:39,596 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:39,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-27 19:55:39,602 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 19:55:39,602 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-27 19:55:39,602 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 19:55:39,602 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~d~0#1) = 1*ULTIMATE.start_main_~d~0#1 Supporting invariants [] [2024-11-27 19:55:39,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-27 19:55:39,614 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-27 19:55:39,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:39,644 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 19:55:39,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:39,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 19:55:39,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:39,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:55:39,693 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 [2024-11-27 19:55:39,694 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) [2024-11-27 19:55:39,721 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. [2024-11-27 19:55:39,721 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 [2024-11-27 19:55:39,722 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) [2024-11-27 19:55:39,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-11-27 19:55:39,723 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 3 letters. [2024-11-27 19:55:39,724 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 19:55:39,724 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 3 letters. [2024-11-27 19:55:39,724 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 19:55:39,724 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 6 letters. [2024-11-27 19:55:39,724 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 19:55:39,724 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 22 transitions. [2024-11-27 19:55:39,725 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 19:55:39,726 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 22 transitions. [2024-11-27 19:55:39,726 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-11-27 19:55:39,726 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-11-27 19:55:39,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2024-11-27 19:55:39,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 19:55:39,727 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2024-11-27 19:55:39,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2024-11-27 19:55:39,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-27 19:55:39,728 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) [2024-11-27 19:55:39,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2024-11-27 19:55:39,729 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2024-11-27 19:55:39,729 INFO L425 stractBuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2024-11-27 19:55:39,729 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-27 19:55:39,729 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2024-11-27 19:55:39,730 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 19:55:39,730 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 19:55:39,730 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 19:55:39,731 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1] [2024-11-27 19:55:39,731 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-27 19:55:39,731 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" "havoc main_#t~nondet3#1;" "assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet4#1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;" "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" "havoc main_#t~nondet3#1;" "assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet4#1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;" [2024-11-27 19:55:39,731 INFO L749 eck$LassoCheckResult]: Loop: "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" "havoc main_#t~nondet3#1;" "assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;havoc main_#t~nondet5#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1;" [2024-11-27 19:55:39,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:39,732 INFO L85 PathProgramCache]: Analyzing trace with hash 208123299, now seen corresponding path program 2 times [2024-11-27 19:55:39,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:55:39,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609904738] [2024-11-27 19:55:39,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:39,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:39,740 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:55:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:39,746 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 19:55:39,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:39,747 INFO L85 PathProgramCache]: Analyzing trace with hash 37868, now seen corresponding path program 3 times [2024-11-27 19:55:39,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:55:39,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863436296] [2024-11-27 19:55:39,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:39,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:39,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:39,752 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:55:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:39,756 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 19:55:39,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:39,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1731566838, now seen corresponding path program 2 times [2024-11-27 19:55:39,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:55:39,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712530358] [2024-11-27 19:55:39,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:39,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:39,766 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:55:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:39,775 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 19:55:39,845 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 19:55:39,845 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 19:55:39,845 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 19:55:39,845 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 19:55:39,845 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 19:55:39,845 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:39,845 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 19:55:39,845 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 19:55:39,845 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration3_Loop [2024-11-27 19:55:39,846 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 19:55:39,846 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 19:55:39,847 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:39,855 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:39,861 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:39,866 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:39,877 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:39,880 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:39,891 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:39,984 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 19:55:39,984 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 19:55:39,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:39,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:39,987 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:39,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-27 19:55:39,995 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 19:55:39,995 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:40,023 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 19:55:40,023 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: [] [2024-11-27 19:55:40,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-27 19:55:40,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:40,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:40,036 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:40,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-27 19:55:40,041 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 19:55:40,041 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:40,069 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 19:55:40,069 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 19:55:40,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-27 19:55:40,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:40,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:40,082 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:40,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-27 19:55:40,087 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 19:55:40,088 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:40,107 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 19:55:40,107 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5#1=0} Honda state: {ULTIMATE.start_main_#t~nondet5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 19:55:40,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-27 19:55:40,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:40,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:40,120 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:40,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-27 19:55:40,128 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 19:55:40,128 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:40,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-27 19:55:40,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:40,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:40,160 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:40,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-27 19:55:40,165 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 19:55:40,165 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:40,205 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 19:55:40,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-27 19:55:40,210 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 19:55:40,210 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 19:55:40,210 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 19:55:40,210 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 19:55:40,210 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 19:55:40,210 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:40,210 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 19:55:40,210 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 19:55:40,210 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration3_Loop [2024-11-27 19:55:40,210 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 19:55:40,210 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 19:55:40,212 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:40,221 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:40,227 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:40,231 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:40,237 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:40,247 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:40,257 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:40,339 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 19:55:40,340 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 19:55:40,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:40,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:40,345 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:40,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-27 19:55:40,348 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 19:55:40,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 19:55:40,364 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 19:55:40,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 19:55:40,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 19:55:40,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 19:55:40,365 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 19:55:40,366 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 19:55:40,371 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 19:55:40,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-27 19:55:40,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:40,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:40,385 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:40,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-27 19:55:40,389 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 [2024-11-27 19:55:40,406 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 19:55:40,406 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 19:55:40,406 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 19:55:40,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 19:55:40,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 19:55:40,407 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 19:55:40,408 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 19:55:40,411 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 19:55:40,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-27 19:55:40,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:40,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:40,424 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:40,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-27 19:55:40,429 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 [2024-11-27 19:55:40,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 19:55:40,446 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 19:55:40,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 19:55:40,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 19:55:40,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 19:55:40,447 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 19:55:40,447 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 19:55:40,449 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 19:55:40,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-27 19:55:40,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:40,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:40,466 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:40,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-27 19:55:40,472 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 [2024-11-27 19:55:40,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 19:55:40,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 19:55:40,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 19:55:40,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 19:55:40,489 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-27 19:55:40,489 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-27 19:55:40,495 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 19:55:40,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-27 19:55:40,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:40,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:40,509 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:40,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-27 19:55:40,515 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 [2024-11-27 19:55:40,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 19:55:40,530 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 19:55:40,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 19:55:40,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 19:55:40,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 19:55:40,532 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 19:55:40,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 19:55:40,535 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 19:55:40,542 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-27 19:55:40,542 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-27 19:55:40,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:40,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:40,544 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:40,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-27 19:55:40,549 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 19:55:40,549 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-27 19:55:40,549 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 19:55:40,549 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~d~0#1) = 1*ULTIMATE.start_main_~d~0#1 Supporting invariants [] [2024-11-27 19:55:40,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-27 19:55:40,562 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-27 19:55:40,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:40,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 19:55:40,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:40,629 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 19:55:40,630 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:40,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:55:40,667 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 [2024-11-27 19:55:40,668 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) [2024-11-27 19:55:40,696 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. [2024-11-27 19:55:40,697 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 [2024-11-27 19:55:40,698 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) [2024-11-27 19:55:40,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-11-27 19:55:40,698 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 3 letters. [2024-11-27 19:55:40,698 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 19:55:40,698 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-27 19:55:40,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:40,727 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 19:55:40,727 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:40,752 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 19:55:40,753 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:40,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:55:40,794 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 [2024-11-27 19:55:40,794 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) [2024-11-27 19:55:40,819 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. [2024-11-27 19:55:40,820 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 [2024-11-27 19:55:40,821 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) [2024-11-27 19:55:40,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-11-27 19:55:40,823 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 3 letters. [2024-11-27 19:55:40,823 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 19:55:40,823 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-27 19:55:40,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:40,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 19:55:40,850 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:40,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:40,882 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 19:55:40,883 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:40,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:55:40,911 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 [2024-11-27 19:55:40,911 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) [2024-11-27 19:55:40,939 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. [2024-11-27 19:55:40,941 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 [2024-11-27 19:55:40,942 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) [2024-11-27 19:55:40,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2024-11-27 19:55:40,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 3 letters. [2024-11-27 19:55:40,943 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 19:55:40,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 11 letters. Loop has 3 letters. [2024-11-27 19:55:40,943 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 19:55:40,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 6 letters. [2024-11-27 19:55:40,944 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 19:55:40,944 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 32 transitions. [2024-11-27 19:55:40,947 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-27 19:55:40,949 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 20 states and 26 transitions. [2024-11-27 19:55:40,949 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-11-27 19:55:40,949 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-11-27 19:55:40,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 26 transitions. [2024-11-27 19:55:40,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 19:55:40,950 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 26 transitions. [2024-11-27 19:55:40,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 26 transitions. [2024-11-27 19:55:40,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 8. [2024-11-27 19:55:40,951 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) [2024-11-27 19:55:40,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2024-11-27 19:55:40,951 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2024-11-27 19:55:40,951 INFO L425 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2024-11-27 19:55:40,951 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-27 19:55:40,951 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2024-11-27 19:55:40,952 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-27 19:55:40,952 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 19:55:40,952 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 19:55:40,955 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 19:55:40,955 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-27 19:55:40,955 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" [2024-11-27 19:55:40,955 INFO L749 eck$LassoCheckResult]: Loop: "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" "havoc main_#t~nondet3#1;" "assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet4#1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;" [2024-11-27 19:55:40,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:40,955 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-11-27 19:55:40,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:55:40,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935567054] [2024-11-27 19:55:40,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:40,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:40,961 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:55:40,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:40,965 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 19:55:40,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:40,966 INFO L85 PathProgramCache]: Analyzing trace with hash 37866, now seen corresponding path program 1 times [2024-11-27 19:55:40,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:55:40,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142389321] [2024-11-27 19:55:40,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:40,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:40,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:40,972 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:55:40,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:40,979 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 19:55:40,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:40,980 INFO L85 PathProgramCache]: Analyzing trace with hash 28696808, now seen corresponding path program 3 times [2024-11-27 19:55:40,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:55:40,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659982954] [2024-11-27 19:55:40,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:40,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:40,993 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:55:40,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:41,001 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 19:55:41,057 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 19:55:41,057 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 19:55:41,057 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 19:55:41,057 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 19:55:41,057 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 19:55:41,057 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:41,057 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 19:55:41,057 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 19:55:41,057 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration4_Loop [2024-11-27 19:55:41,057 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 19:55:41,057 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 19:55:41,059 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:41,062 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:41,067 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:41,069 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:41,073 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:41,077 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:41,084 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:41,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-27 19:55:41,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-27 19:55:41,184 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 19:55:41,184 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 19:55:41,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:41,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:41,189 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:41,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-27 19:55:41,195 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 19:55:41,195 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:41,224 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 19:55:41,224 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: [] [2024-11-27 19:55:41,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-27 19:55:41,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:41,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:41,237 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:41,241 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 19:55:41,242 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:41,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-27 19:55:41,265 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 19:55:41,265 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~d~0#1=1} Honda state: {ULTIMATE.start_main_~d~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 19:55:41,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-27 19:55:41,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:41,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:41,273 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:41,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-27 19:55:41,276 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 19:55:41,276 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:41,289 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 19:55:41,289 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: [] [2024-11-27 19:55:41,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-27 19:55:41,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:41,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:41,297 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:41,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-27 19:55:41,300 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 19:55:41,300 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:41,320 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 19:55:41,321 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: [] [2024-11-27 19:55:41,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-11-27 19:55:41,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:41,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:41,329 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:41,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-27 19:55:41,332 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 19:55:41,332 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:41,355 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 19:55:41,355 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: [] [2024-11-27 19:55:41,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-27 19:55:41,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:41,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:41,368 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:41,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-27 19:55:41,373 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 19:55:41,373 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:41,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-11-27 19:55:41,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:41,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:41,398 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:41,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-27 19:55:41,402 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 19:55:41,402 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:41,432 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 19:55:41,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-11-27 19:55:41,435 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 19:55:41,435 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 19:55:41,435 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 19:55:41,435 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 19:55:41,435 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 19:55:41,436 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:41,436 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 19:55:41,436 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 19:55:41,436 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration4_Loop [2024-11-27 19:55:41,436 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 19:55:41,436 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 19:55:41,437 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:41,443 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:41,447 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:41,451 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:41,456 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:41,464 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:41,467 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:41,524 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 19:55:41,524 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 19:55:41,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:41,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:41,529 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:41,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-27 19:55:41,532 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 [2024-11-27 19:55:41,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 19:55:41,547 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 19:55:41,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 19:55:41,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 19:55:41,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 19:55:41,548 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 19:55:41,548 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 19:55:41,552 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 19:55:41,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-11-27 19:55:41,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:41,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:41,565 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:41,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-27 19:55:41,568 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 [2024-11-27 19:55:41,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 19:55:41,581 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 19:55:41,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 19:55:41,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 19:55:41,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 19:55:41,582 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 19:55:41,582 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 19:55:41,585 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 19:55:41,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-11-27 19:55:41,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:41,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:41,596 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:41,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-27 19:55:41,599 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 [2024-11-27 19:55:41,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 19:55:41,612 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 19:55:41,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 19:55:41,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 19:55:41,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 19:55:41,614 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 19:55:41,614 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 19:55:41,616 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 19:55:41,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-11-27 19:55:41,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:41,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:41,625 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:41,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-27 19:55:41,630 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 19:55:41,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 19:55:41,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 19:55:41,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 19:55:41,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 19:55:41,649 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-27 19:55:41,649 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-27 19:55:41,653 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 19:55:41,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-11-27 19:55:41,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:41,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:41,661 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:41,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-27 19:55:41,663 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 [2024-11-27 19:55:41,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 19:55:41,676 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 19:55:41,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 19:55:41,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 19:55:41,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 19:55:41,677 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 19:55:41,677 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 19:55:41,680 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 19:55:41,682 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-27 19:55:41,682 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-27 19:55:41,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:41,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:41,684 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:41,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-11-27 19:55:41,686 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 19:55:41,686 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-27 19:55:41,686 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 19:55:41,686 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 [] [2024-11-27 19:55:41,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2024-11-27 19:55:41,696 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-27 19:55:41,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:41,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:41,714 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 19:55:41,714 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:41,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:41,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 19:55:41,725 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:41,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:55:41,754 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 [2024-11-27 19:55:41,754 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) [2024-11-27 19:55:41,779 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 18 states and 24 transitions. Complement of second has 5 states. [2024-11-27 19:55:41,780 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 [2024-11-27 19:55:41,781 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) [2024-11-27 19:55:41,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-11-27 19:55:41,781 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 3 letters. [2024-11-27 19:55:41,781 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 19:55:41,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 3 letters. [2024-11-27 19:55:41,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 19:55:41,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 6 letters. [2024-11-27 19:55:41,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 19:55:41,782 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 24 transitions. [2024-11-27 19:55:41,783 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-27 19:55:41,784 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 14 states and 18 transitions. [2024-11-27 19:55:41,784 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-11-27 19:55:41,784 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-11-27 19:55:41,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 18 transitions. [2024-11-27 19:55:41,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 19:55:41,784 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 18 transitions. [2024-11-27 19:55:41,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 18 transitions. [2024-11-27 19:55:41,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2024-11-27 19:55:41,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:55:41,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2024-11-27 19:55:41,786 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2024-11-27 19:55:41,786 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2024-11-27 19:55:41,786 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-27 19:55:41,786 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2024-11-27 19:55:41,786 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-27 19:55:41,787 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 19:55:41,787 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 19:55:41,788 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2024-11-27 19:55:41,788 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-27 19:55:41,788 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" "havoc main_#t~nondet3#1;" "assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;havoc main_#t~nondet5#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1;" "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" [2024-11-27 19:55:41,788 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet3#1;" "assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet4#1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;" "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" [2024-11-27 19:55:41,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:41,789 INFO L85 PathProgramCache]: Analyzing trace with hash 889601118, now seen corresponding path program 2 times [2024-11-27 19:55:41,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:55:41,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787684953] [2024-11-27 19:55:41,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:41,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:41,796 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:55:41,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:41,801 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 19:55:41,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:41,802 INFO L85 PathProgramCache]: Analyzing trace with hash 41796, now seen corresponding path program 2 times [2024-11-27 19:55:41,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:55:41,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657820911] [2024-11-27 19:55:41,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:41,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:41,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:41,806 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:55:41,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:41,810 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 19:55:41,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:41,810 INFO L85 PathProgramCache]: Analyzing trace with hash -2136265273, now seen corresponding path program 3 times [2024-11-27 19:55:41,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:55:41,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501603092] [2024-11-27 19:55:41,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:41,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:41,817 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:55:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:41,827 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 19:55:41,859 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 19:55:41,859 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 19:55:41,859 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 19:55:41,859 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 19:55:41,859 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 19:55:41,859 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:41,859 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 19:55:41,859 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 19:55:41,859 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration5_Loop [2024-11-27 19:55:41,859 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 19:55:41,859 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 19:55:41,861 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:41,874 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:41,878 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:41,881 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:41,885 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:41,889 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:41,892 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:41,961 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 19:55:41,961 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 19:55:41,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:41,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:41,967 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:41,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-27 19:55:41,972 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 19:55:41,973 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:41,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-11-27 19:55:42,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:42,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:42,002 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:42,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-11-27 19:55:42,004 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 19:55:42,004 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:42,049 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 19:55:42,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-11-27 19:55:42,052 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 19:55:42,052 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 19:55:42,052 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 19:55:42,052 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 19:55:42,052 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 19:55:42,053 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:42,053 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 19:55:42,053 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 19:55:42,053 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration5_Loop [2024-11-27 19:55:42,053 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 19:55:42,053 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 19:55:42,054 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:42,065 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:42,071 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:42,074 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:42,077 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:42,080 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:42,084 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:42,135 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 19:55:42,136 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 19:55:42,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:42,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:42,138 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:42,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-11-27 19:55:42,141 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 [2024-11-27 19:55:42,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 19:55:42,156 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 19:55:42,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 19:55:42,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 19:55:42,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 19:55:42,157 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 19:55:42,157 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 19:55:42,160 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 19:55:42,162 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-27 19:55:42,162 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-27 19:55:42,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:42,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:42,166 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:42,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-11-27 19:55:42,170 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 19:55:42,170 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-27 19:55:42,170 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 19:55:42,170 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 [] [2024-11-27 19:55:42,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-11-27 19:55:42,183 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-27 19:55:42,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:42,204 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 19:55:42,205 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:42,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:42,222 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 19:55:42,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:42,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:55:42,245 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 [2024-11-27 19:55:42,245 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2024-11-27 19:55:42,273 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 17 states and 21 transitions. Complement of second has 7 states. [2024-11-27 19:55:42,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-27 19:55:42,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2024-11-27 19:55:42,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2024-11-27 19:55:42,275 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 6 letters. Loop has 3 letters. [2024-11-27 19:55:42,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 19:55:42,275 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-27 19:55:42,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:42,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 19:55:42,300 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:42,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:42,315 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 19:55:42,316 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:42,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:55:42,332 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 [2024-11-27 19:55:42,333 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2024-11-27 19:55:42,355 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 17 states and 21 transitions. Complement of second has 7 states. [2024-11-27 19:55:42,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-27 19:55:42,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2024-11-27 19:55:42,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2024-11-27 19:55:42,356 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 6 letters. Loop has 3 letters. [2024-11-27 19:55:42,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 19:55:42,357 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-27 19:55:42,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:42,378 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 19:55:42,378 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:42,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 19:55:42,399 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:42,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:55:42,415 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 [2024-11-27 19:55:42,415 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2024-11-27 19:55:42,435 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 26 transitions. Complement of second has 6 states. [2024-11-27 19:55:42,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-27 19:55:42,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2024-11-27 19:55:42,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2024-11-27 19:55:42,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 3 letters. [2024-11-27 19:55:42,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 19:55:42,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 9 letters. Loop has 3 letters. [2024-11-27 19:55:42,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 19:55:42,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 6 letters. [2024-11-27 19:55:42,438 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 19:55:42,438 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2024-11-27 19:55:42,438 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-27 19:55:42,439 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 15 states and 19 transitions. [2024-11-27 19:55:42,439 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2024-11-27 19:55:42,439 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2024-11-27 19:55:42,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2024-11-27 19:55:42,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 19:55:42,440 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 19 transitions. [2024-11-27 19:55:42,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2024-11-27 19:55:42,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 10. [2024-11-27 19:55:42,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:55:42,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2024-11-27 19:55:42,441 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2024-11-27 19:55:42,441 INFO L425 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2024-11-27 19:55:42,441 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-27 19:55:42,441 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2024-11-27 19:55:42,441 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-27 19:55:42,441 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 19:55:42,441 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 19:55:42,442 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2024-11-27 19:55:42,442 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1] [2024-11-27 19:55:42,442 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" "havoc main_#t~nondet3#1;" "assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;havoc main_#t~nondet5#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1;" "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" [2024-11-27 19:55:42,442 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet3#1;" "assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet4#1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;" "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" "havoc main_#t~nondet3#1;" "assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;havoc main_#t~nondet5#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1;" "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" [2024-11-27 19:55:42,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:42,442 INFO L85 PathProgramCache]: Analyzing trace with hash 889601118, now seen corresponding path program 3 times [2024-11-27 19:55:42,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:55:42,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322871314] [2024-11-27 19:55:42,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:42,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:42,448 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:55:42,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:42,452 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 19:55:42,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:42,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1245156703, now seen corresponding path program 1 times [2024-11-27 19:55:42,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:55:42,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259822402] [2024-11-27 19:55:42,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:42,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:42,459 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:55:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:42,464 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 19:55:42,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:42,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1346656252, now seen corresponding path program 4 times [2024-11-27 19:55:42,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 19:55:42,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576950934] [2024-11-27 19:55:42,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:55:42,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:55:42,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:42,473 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 19:55:42,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 19:55:42,480 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 19:55:42,558 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 19:55:42,559 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 19:55:42,559 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 19:55:42,559 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 19:55:42,559 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 19:55:42,559 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:42,559 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 19:55:42,559 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 19:55:42,559 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration6_Loop [2024-11-27 19:55:42,559 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 19:55:42,559 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 19:55:42,560 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:42,569 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:42,571 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:42,575 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:42,581 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:42,583 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:42,585 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:42,588 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:42,642 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 19:55:42,642 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 19:55:42,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:42,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:42,647 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:42,651 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 19:55:42,651 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:42,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-11-27 19:55:42,672 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 19:55:42,672 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=2} Honda state: {ULTIMATE.start_main_~x~0#1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 19:55:42,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2024-11-27 19:55:42,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:42,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:42,686 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:42,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-11-27 19:55:42,693 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 19:55:42,693 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:42,712 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 19:55:42,712 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: [] [2024-11-27 19:55:42,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2024-11-27 19:55:42,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:42,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:42,721 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:42,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-11-27 19:55:42,724 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 19:55:42,724 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:42,748 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 19:55:42,749 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 19:55:42,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2024-11-27 19:55:42,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:42,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:42,761 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:42,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-11-27 19:55:42,764 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 19:55:42,764 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:42,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2024-11-27 19:55:42,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:42,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:42,786 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:42,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-11-27 19:55:42,788 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 19:55:42,789 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 19:55:42,866 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 19:55:42,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2024-11-27 19:55:42,871 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 19:55:42,871 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 19:55:42,871 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 19:55:42,871 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 19:55:42,871 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 19:55:42,871 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:42,871 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 19:55:42,871 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 19:55:42,871 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration6_Loop [2024-11-27 19:55:42,871 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 19:55:42,871 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 19:55:42,873 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:42,881 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:42,891 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:42,895 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:42,898 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:42,901 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:42,905 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:42,909 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 19:55:42,975 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 19:55:42,975 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 19:55:42,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:42,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:42,980 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:42,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-11-27 19:55:42,985 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 [2024-11-27 19:55:43,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 19:55:43,002 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 19:55:43,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 19:55:43,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 19:55:43,002 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 19:55:43,003 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 19:55:43,004 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 19:55:43,008 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 19:55:43,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2024-11-27 19:55:43,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:43,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:43,020 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:43,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-11-27 19:55:43,023 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 [2024-11-27 19:55:43,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 19:55:43,035 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 19:55:43,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 19:55:43,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 19:55:43,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 19:55:43,036 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 19:55:43,036 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 19:55:43,039 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 19:55:43,040 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-27 19:55:43,041 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-27 19:55:43,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 19:55:43,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:55:43,043 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 19:55:43,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-11-27 19:55:43,046 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 19:55:43,046 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-27 19:55:43,046 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 19:55:43,046 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 [] [2024-11-27 19:55:43,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2024-11-27 19:55:43,058 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-27 19:55:43,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:55:43,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:43,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 19:55:43,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:43,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:55:43,104 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 19:55:43,105 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:55:43,130 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 19:55:43,130 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 [2024-11-27 19:55:43,131 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:55:43,154 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 38 transitions. Complement of second has 6 states. [2024-11-27 19:55:43,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-27 19:55:43,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:55:43,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2024-11-27 19:55:43,158 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 6 letters. Loop has 6 letters. [2024-11-27 19:55:43,158 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 19:55:43,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 12 letters. Loop has 6 letters. [2024-11-27 19:55:43,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 19:55:43,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 6 letters. Loop has 12 letters. [2024-11-27 19:55:43,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 19:55:43,159 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 38 transitions. [2024-11-27 19:55:43,160 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-27 19:55:43,160 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2024-11-27 19:55:43,160 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-27 19:55:43,160 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-27 19:55:43,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-27 19:55:43,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 19:55:43,160 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 19:55:43,160 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 19:55:43,161 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 19:55:43,161 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-27 19:55:43,161 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-27 19:55:43,161 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-27 19:55:43,161 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-27 19:55:43,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.11 07:55:43 BoogieIcfgContainer [2024-11-27 19:55:43,179 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-27 19:55:43,181 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 19:55:43,181 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 19:55:43,181 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 19:55:43,182 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:55:37" (3/4) ... [2024-11-27 19:55:43,185 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 19:55:43,186 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 19:55:43,187 INFO L158 Benchmark]: Toolchain (without parser) took 6526.15ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 37.4MB in the end (delta: 68.0MB). Peak memory consumption was 63.2MB. Max. memory is 16.1GB. [2024-11-27 19:55:43,188 INFO L158 Benchmark]: CDTParser took 1.10ms. Allocated memory is still 167.8MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:55:43,188 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.05ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 95.3MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 19:55:43,189 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.89ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 94.2MB in the end (delta: 770.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:55:43,189 INFO L158 Benchmark]: Boogie Preprocessor took 42.28ms. Allocated memory is still 142.6MB. Free memory was 94.2MB in the beginning and 93.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:55:43,190 INFO L158 Benchmark]: RCFGBuilder took 279.61ms. Allocated memory is still 142.6MB. Free memory was 93.2MB in the beginning and 84.7MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 19:55:43,191 INFO L158 Benchmark]: BuchiAutomizer took 5876.47ms. Allocated memory is still 142.6MB. Free memory was 84.3MB in the beginning and 37.5MB in the end (delta: 46.9MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. [2024-11-27 19:55:43,191 INFO L158 Benchmark]: Witness Printer took 5.37ms. Allocated memory is still 142.6MB. Free memory was 37.5MB in the beginning and 37.4MB in the end (delta: 36.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:55:43,194 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.10ms. Allocated memory is still 167.8MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.05ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 95.3MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.89ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 94.2MB in the end (delta: 770.5kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.28ms. Allocated memory is still 142.6MB. Free memory was 94.2MB in the beginning and 93.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 279.61ms. Allocated memory is still 142.6MB. Free memory was 93.2MB in the beginning and 84.7MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 5876.47ms. Allocated memory is still 142.6MB. Free memory was 84.3MB in the beginning and 37.5MB in the end (delta: 46.9MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. * Witness Printer took 5.37ms. Allocated memory is still 142.6MB. Free memory was 37.5MB in the beginning and 37.4MB in the end (delta: 36.9kB). 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 6 terminating modules (0 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function d and consists of 4 locations. One deterministic module has affine ranking function d and consists of 3 locations. One deterministic module has affine ranking function x and consists of 3 locations. One deterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function d and consists of 3 locations. One nondeterministic module has affine ranking function x and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.8s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 4.4s. Construction of modules took 0.1s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 3/3 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 61 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51 mSDsluCounter, 77 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 58 IncrementalHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 63 mSDtfsCounter, 58 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax164 hnf100 lsp32 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 38ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 15 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 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! [2024-11-27 19:55:43,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2024-11-27 19:55:43,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2024-11-27 19:55:43,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-11-27 19:55:43,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6e23fb-e79e-4a7a-99ef-f915601cb843/bin/uautomizer-verify-aQ6SnzHsRB/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