./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.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_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/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_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/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_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/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 33be026e9ca846df0a8faa91fc9c2bbf64ee20dbba0f4f48a9cd42fbefb372d5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:50:48,859 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:50:48,978 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-28 04:50:48,987 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:50:48,988 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:50:49,031 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:50:49,032 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:50:49,033 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:50:49,033 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:50:49,034 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:50:49,035 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:50:49,036 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:50:49,036 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:50:49,036 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 04:50:49,037 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 04:50:49,037 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 04:50:49,037 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 04:50:49,037 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 04:50:49,038 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 04:50:49,038 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:50:49,038 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 04:50:49,038 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:50:49,038 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:50:49,038 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 04:50:49,038 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 04:50:49,038 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 04:50:49,038 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:50:49,039 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:50:49,039 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 04:50:49,039 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:50:49,040 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:50:49,040 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:50:49,040 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:50:49,040 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:50:49,040 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 04:50:49,041 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 04:50:49,041 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_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/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 -> 33be026e9ca846df0a8faa91fc9c2bbf64ee20dbba0f4f48a9cd42fbefb372d5 [2024-11-28 04:50:49,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:50:49,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:50:49,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:50:49,456 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:50:49,457 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:50:49,458 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2024-11-28 04:50:52,722 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/data/233a43eb9/e3da52a4a817492c98111f4a8032ce62/FLAG70d289c94 [2024-11-28 04:50:53,085 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:50:53,090 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2024-11-28 04:50:53,112 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/data/233a43eb9/e3da52a4a817492c98111f4a8032ce62/FLAG70d289c94 [2024-11-28 04:50:53,337 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/data/233a43eb9/e3da52a4a817492c98111f4a8032ce62 [2024-11-28 04:50:53,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:50:53,344 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:50:53,346 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:50:53,347 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:50:53,356 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:50:53,357 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:50:53" (1/1) ... [2024-11-28 04:50:53,358 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@391bfaa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:53, skipping insertion in model container [2024-11-28 04:50:53,359 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:50:53" (1/1) ... [2024-11-28 04:50:53,378 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:50:53,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:50:53,567 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:50:53,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:50:53,593 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:50:53,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:53 WrapperNode [2024-11-28 04:50:53,593 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:50:53,594 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:50:53,595 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:50:53,595 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:50:53,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:53" (1/1) ... [2024-11-28 04:50:53,607 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:53" (1/1) ... [2024-11-28 04:50:53,621 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2024-11-28 04:50:53,622 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:50:53,622 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:50:53,623 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:50:53,623 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:50:53,629 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:53" (1/1) ... [2024-11-28 04:50:53,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:53" (1/1) ... [2024-11-28 04:50:53,630 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:53" (1/1) ... [2024-11-28 04:50:53,635 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-28 04:50:53,635 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:53" (1/1) ... [2024-11-28 04:50:53,636 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:53" (1/1) ... [2024-11-28 04:50:53,637 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:53" (1/1) ... [2024-11-28 04:50:53,638 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:53" (1/1) ... [2024-11-28 04:50:53,644 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:53" (1/1) ... [2024-11-28 04:50:53,645 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:53" (1/1) ... [2024-11-28 04:50:53,645 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:53" (1/1) ... [2024-11-28 04:50:53,649 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:50:53,650 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:50:53,650 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:50:53,650 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:50:53,651 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:53" (1/1) ... [2024-11-28 04:50:53,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:53,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:53,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:53,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 04:50:53,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:50:53,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:50:53,799 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:50:53,801 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:50:53,888 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-28 04:50:53,888 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:50:53,898 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:50:53,899 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:50:53,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:50:53 BoogieIcfgContainer [2024-11-28 04:50:53,899 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:50:53,900 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 04:50:53,900 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 04:50:53,907 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 04:50:53,907 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:50:53,908 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 04:50:53" (1/3) ... [2024-11-28 04:50:53,909 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12f9658a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 04:50:53, skipping insertion in model container [2024-11-28 04:50:53,909 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:50:53,909 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:53" (2/3) ... [2024-11-28 04:50:53,909 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12f9658a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 04:50:53, skipping insertion in model container [2024-11-28 04:50:53,909 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:50:53,910 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:50:53" (3/3) ... [2024-11-28 04:50:53,911 INFO L363 chiAutomizerObserver]: Analyzing ICFG LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2024-11-28 04:50:53,985 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 04:50:53,986 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 04:50:53,986 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 04:50:53,986 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 04:50:53,986 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 04:50:53,986 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 04:50:53,986 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 04:50:53,986 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 04:50:53,992 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) 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) [2024-11-28 04:50:54,009 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 04:50:54,010 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:50:54,010 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:50:54,016 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-28 04:50:54,016 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 04:50:54,017 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 04:50:54,017 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) 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) [2024-11-28 04:50:54,018 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 04:50:54,018 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:50:54,018 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:50:54,018 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-28 04:50:54,019 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 04:50:54,028 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000;" [2024-11-28 04:50:54,028 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~y~0#1 >= 1;" "main_~x~0#1 := main_~x~0#1 - 1;" "assume !(main_~y~0#1 < main_~z~0#1);" "main_~y~0#1 := main_~x~0#1 + main_~y~0#1;" [2024-11-28 04:50:54,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:54,034 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-11-28 04:50:54,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:50:54,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411361257] [2024-11-28 04:50:54,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:54,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:54,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:50:54,130 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:50:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:50:54,158 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:50:54,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:54,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1266379, now seen corresponding path program 1 times [2024-11-28 04:50:54,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:50:54,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081086643] [2024-11-28 04:50:54,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:54,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:50:54,185 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:50:54,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:50:54,198 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:50:54,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:54,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1805029100, now seen corresponding path program 1 times [2024-11-28 04:50:54,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:50:54,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537039251] [2024-11-28 04:50:54,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:54,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:54,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:50:54,220 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:50:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:50:54,235 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:50:54,372 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:50:54,373 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:50:54,373 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:50:54,373 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:50:54,373 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 04:50:54,373 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:54,373 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:50:54,373 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:50:54,374 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration1_Loop [2024-11-28 04:50:54,374 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:50:54,374 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:50:54,389 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:50:54,405 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:50:54,415 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:50:54,524 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:50:54,524 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 04:50:54,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:54,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:54,530 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:54,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-28 04:50:54,536 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:50:54,536 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:50:54,568 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 04:50:54,568 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 04:50:54,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-28 04:50:54,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:54,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:54,582 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:54,587 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:50:54,588 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:50:54,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-28 04:50:54,618 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 04:50:54,618 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 04:50:54,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:50:54,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:54,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:54,632 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:54,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-28 04:50:54,636 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:50:54,637 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:50:54,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-28 04:50:54,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:54,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:54,670 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:54,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-28 04:50:54,676 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 04:50:54,676 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:50:54,884 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 04:50:54,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-28 04:50:54,889 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:50:54,889 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:50:54,889 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:50:54,889 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:50:54,889 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 04:50:54,890 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:54,890 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:50:54,890 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:50:54,890 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration1_Loop [2024-11-28 04:50:54,890 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:50:54,890 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:50:54,893 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:50:54,899 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:50:54,909 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:50:55,011 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:50:55,016 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 04:50:55,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:55,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:55,020 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:55,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-28 04:50:55,026 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 [2024-11-28 04:50:55,043 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:50:55,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:50:55,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:50:55,044 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:50:55,054 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 04:50:55,054 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 04:50:55,064 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:50:55,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-28 04:50:55,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:55,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:55,082 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:55,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-28 04:50:55,087 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 [2024-11-28 04:50:55,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:50:55,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:50:55,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:50:55,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:50:55,107 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 04:50:55,107 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 04:50:55,121 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:50:55,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-28 04:50:55,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:55,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:55,136 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:55,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-28 04:50:55,141 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 [2024-11-28 04:50:55,158 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:50:55,158 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:50:55,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:50:55,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:50:55,159 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:50:55,163 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:50:55,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:50:55,169 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:50:55,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-28 04:50:55,176 INFO L451 LassoAnalysis]: Using template '2-nested'. [2024-11-28 04:50:55,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:55,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:55,178 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:55,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-28 04:50:55,200 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 [2024-11-28 04:50:55,213 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:50:55,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:50:55,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:50:55,214 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-28 04:50:55,218 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2024-11-28 04:50:55,218 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2024-11-28 04:50:55,227 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:50:55,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-28 04:50:55,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:55,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:55,239 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:55,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-28 04:50:55,244 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 [2024-11-28 04:50:55,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:50:55,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:50:55,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:50:55,260 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-28 04:50:55,266 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2024-11-28 04:50:55,268 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2024-11-28 04:50:55,281 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:50:55,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-28 04:50:55,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:55,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:55,293 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:55,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-28 04:50:55,298 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 [2024-11-28 04:50:55,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:50:55,314 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:50:55,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:50:55,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:50:55,315 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-28 04:50:55,318 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-28 04:50:55,318 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:50:55,324 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 04:50:55,331 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-28 04:50:55,334 INFO L444 ModelExtractionUtils]: 3 out of 9 variables were initially zero. Simplification set additionally 3 variables to zero. [2024-11-28 04:50:55,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:55,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:55,339 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:55,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-28 04:50:55,342 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 04:50:55,342 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 04:50:55,342 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 04:50:55,343 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*ULTIMATE.start_main_~x~0#1 f1 = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-28 04:50:55,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-28 04:50:55,361 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 04:50:55,371 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-28 04:50:55,372 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-28 04:50:55,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:55,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:55,426 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:50:55,428 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:55,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:55,452 WARN L254 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:50:55,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:55,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:50:55,862 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-28 04:50:55,864 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) 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) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2024-11-28 04:50:55,973 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) 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). Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 36 states and 49 transitions. Complement of second has 8 states. [2024-11-28 04:50:55,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-28 04:50:55,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2024-11-28 04:50:55,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2024-11-28 04:50:55,993 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 3 letters. Loop has 4 letters. [2024-11-28 04:50:55,997 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:50:55,997 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 7 letters. Loop has 4 letters. [2024-11-28 04:50:55,997 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:50:55,997 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 3 letters. Loop has 8 letters. [2024-11-28 04:50:55,997 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:50:55,998 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 49 transitions. [2024-11-28 04:50:56,003 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 04:50:56,007 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 16 states and 20 transitions. [2024-11-28 04:50:56,009 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-11-28 04:50:56,010 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-11-28 04:50:56,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 20 transitions. [2024-11-28 04:50:56,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 04:50:56,011 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 20 transitions. [2024-11-28 04:50:56,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 20 transitions. [2024-11-28 04:50:56,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2024-11-28 04:50:56,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 14 states have internal predecessors, (19), 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) [2024-11-28 04:50:56,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2024-11-28 04:50:56,043 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 19 transitions. [2024-11-28 04:50:56,043 INFO L425 stractBuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2024-11-28 04:50:56,044 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-28 04:50:56,044 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2024-11-28 04:50:56,045 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 04:50:56,046 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:50:56,046 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:50:56,046 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-28 04:50:56,047 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 04:50:56,047 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000;" "assume main_~y~0#1 >= 1;" "main_~x~0#1 := main_~x~0#1 - 1;" "assume main_~y~0#1 < main_~z~0#1;" [2024-11-28 04:50:56,047 INFO L749 eck$LassoCheckResult]: Loop: "main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1;" "assume main_~y~0#1 < main_~z~0#1;" [2024-11-28 04:50:56,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:56,051 INFO L85 PathProgramCache]: Analyzing trace with hash 889510735, now seen corresponding path program 1 times [2024-11-28 04:50:56,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:50:56,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576868896] [2024-11-28 04:50:56,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:56,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:56,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:50:56,063 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:50:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:50:56,073 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:50:56,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:56,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1757, now seen corresponding path program 1 times [2024-11-28 04:50:56,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:50:56,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479074701] [2024-11-28 04:50:56,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:56,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:50:56,083 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:50:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:50:56,091 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:50:56,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:56,091 INFO L85 PathProgramCache]: Analyzing trace with hash 121325227, now seen corresponding path program 1 times [2024-11-28 04:50:56,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:50:56,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973617403] [2024-11-28 04:50:56,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:56,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:50:56,106 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:50:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:50:56,119 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:50:56,159 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:50:56,159 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:50:56,159 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:50:56,159 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:50:56,160 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 04:50:56,160 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:56,160 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:50:56,160 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:50:56,160 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration2_Loop [2024-11-28 04:50:56,160 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:50:56,160 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:50:56,161 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:50:56,167 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:50:56,172 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:50:56,176 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:50:56,242 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:50:56,243 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 04:50:56,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:56,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:56,245 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:56,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-28 04:50:56,250 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:50:56,250 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:50:56,276 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 04:50:56,276 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: [] [2024-11-28 04:50:56,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-28 04:50:56,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:56,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:56,284 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:56,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-28 04:50:56,287 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:50:56,287 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:50:56,309 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 04:50:56,309 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: [] [2024-11-28 04:50:56,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-28 04:50:56,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:56,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:56,323 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:56,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-28 04:50:56,327 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:50:56,327 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:50:56,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-28 04:50:56,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:56,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:56,352 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:56,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-28 04:50:56,354 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 04:50:56,354 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:50:56,394 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 04:50:56,394 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=1}, {ULTIMATE.start_main_~x~0#1=-7}, {ULTIMATE.start_main_~x~0#1=7}] Lambdas: [8, 2, 1] Nus: [1, 1] [2024-11-28 04:50:56,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-28 04:50:56,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:56,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:56,409 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:56,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-28 04:50:56,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-28 04:50:56,414 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:50:56,414 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:50:56,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-28 04:50:56,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:56,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:56,443 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:56,447 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 04:50:56,448 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:50:56,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-28 04:50:56,581 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 04:50:56,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-28 04:50:56,585 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:50:56,585 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:50:56,585 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:50:56,585 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:50:56,586 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 04:50:56,586 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:56,586 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:50:56,586 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:50:56,586 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration2_Loop [2024-11-28 04:50:56,586 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:50:56,586 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:50:56,588 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:50:56,593 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:50:56,598 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:50:56,603 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:50:56,677 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:50:56,677 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 04:50:56,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:56,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:56,680 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:56,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-28 04:50:56,686 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 04:50:56,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:50:56,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:50:56,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:50:56,704 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:50:56,708 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 04:50:56,708 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 04:50:56,714 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:50:56,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-28 04:50:56,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:56,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:56,730 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:56,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-28 04:50:56,735 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 [2024-11-28 04:50:56,753 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:50:56,753 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:50:56,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:50:56,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:50:56,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:50:56,755 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:50:56,755 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:50:56,758 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:50:56,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-28 04:50:56,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:56,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:56,774 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:56,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-28 04:50:56,781 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 [2024-11-28 04:50:56,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:50:56,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:50:56,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:50:56,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:50:56,803 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 04:50:56,803 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 04:50:56,809 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:50:56,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-11-28 04:50:56,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:56,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:56,822 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:56,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-28 04:50:56,825 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 04:50:56,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:50:56,838 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:50:56,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:50:56,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:50:56,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:50:56,839 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:50:56,839 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:50:56,843 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 04:50:56,849 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-28 04:50:56,849 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-28 04:50:56,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:56,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:56,852 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:56,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-28 04:50:56,856 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 04:50:56,856 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 04:50:56,856 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 04:50:56,857 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~z~0#1) = -1*ULTIMATE.start_main_~y~0#1 + 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2024-11-28 04:50:56,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-28 04:50:56,870 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 04:50:56,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:56,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:56,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:50:56,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:56,929 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:50:56,930 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:56,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:50:56,949 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 [2024-11-28 04:50:56,950 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 6 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) [2024-11-28 04:50:56,994 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 6. 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 26 states and 35 transitions. Complement of second has 6 states. [2024-11-28 04:50:56,997 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 [2024-11-28 04:50:56,998 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) [2024-11-28 04:50:56,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2024-11-28 04:50:56,998 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 2 letters. [2024-11-28 04:50:56,999 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:50:56,999 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 8 letters. Loop has 2 letters. [2024-11-28 04:50:56,999 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:50:56,999 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 4 letters. [2024-11-28 04:50:56,999 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:50:56,999 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 35 transitions. [2024-11-28 04:50:57,003 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 04:50:57,004 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 20 states and 26 transitions. [2024-11-28 04:50:57,004 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-11-28 04:50:57,005 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-11-28 04:50:57,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 26 transitions. [2024-11-28 04:50:57,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 04:50:57,005 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 26 transitions. [2024-11-28 04:50:57,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 26 transitions. [2024-11-28 04:50:57,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2024-11-28 04:50:57,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:50:57,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2024-11-28 04:50:57,008 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 25 transitions. [2024-11-28 04:50:57,008 INFO L425 stractBuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2024-11-28 04:50:57,009 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-28 04:50:57,009 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 25 transitions. [2024-11-28 04:50:57,011 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 04:50:57,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:50:57,011 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:50:57,011 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:50:57,011 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 04:50:57,011 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000;" "assume main_~y~0#1 >= 1;" "main_~x~0#1 := main_~x~0#1 - 1;" "assume main_~y~0#1 < main_~z~0#1;" "main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1;" "assume !(main_~y~0#1 < main_~z~0#1);" [2024-11-28 04:50:57,012 INFO L749 eck$LassoCheckResult]: Loop: "main_~y~0#1 := main_~x~0#1 + main_~y~0#1;" "assume main_~y~0#1 >= 1;" "main_~x~0#1 := main_~x~0#1 - 1;" "assume !(main_~y~0#1 < main_~z~0#1);" [2024-11-28 04:50:57,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:57,012 INFO L85 PathProgramCache]: Analyzing trace with hash 121325229, now seen corresponding path program 1 times [2024-11-28 04:50:57,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:50:57,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550740534] [2024-11-28 04:50:57,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:57,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:57,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:50:57,029 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:50:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:50:57,044 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:50:57,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:57,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1798519, now seen corresponding path program 2 times [2024-11-28 04:50:57,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:50:57,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329828408] [2024-11-28 04:50:57,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:57,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:57,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:50:57,055 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:50:57,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:50:57,059 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:50:57,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:57,060 INFO L85 PathProgramCache]: Analyzing trace with hash -709131741, now seen corresponding path program 1 times [2024-11-28 04:50:57,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:50:57,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942140189] [2024-11-28 04:50:57,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:57,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:57,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:50:57,070 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:50:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:50:57,079 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:50:57,122 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:50:57,123 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:50:57,123 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:50:57,123 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:50:57,123 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 04:50:57,123 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:57,123 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:50:57,123 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:50:57,123 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration3_Loop [2024-11-28 04:50:57,123 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:50:57,123 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:50:57,124 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:50:57,130 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:50:57,146 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:50:57,217 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:50:57,217 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 04:50:57,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:57,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:57,220 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:57,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-28 04:50:57,225 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:50:57,225 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:50:57,254 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 04:50:57,254 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: [] [2024-11-28 04:50:57,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-28 04:50:57,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:57,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:57,268 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:57,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-28 04:50:57,274 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:50:57,274 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:50:57,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-11-28 04:50:57,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:57,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:57,307 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:57,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-28 04:50:57,313 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 04:50:57,313 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:50:57,501 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 04:50:57,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-28 04:50:57,506 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:50:57,506 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:50:57,506 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:50:57,506 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:50:57,506 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 04:50:57,506 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:57,506 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:50:57,507 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:50:57,507 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration3_Loop [2024-11-28 04:50:57,507 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:50:57,507 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:50:57,508 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:50:57,520 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:50:57,527 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:50:57,586 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:50:57,586 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 04:50:57,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:57,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:57,588 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:57,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-28 04:50:57,593 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 [2024-11-28 04:50:57,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:50:57,609 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:50:57,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:50:57,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:50:57,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:50:57,611 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:50:57,611 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:50:57,614 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:50:57,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-11-28 04:50:57,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:57,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:57,631 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:57,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-28 04:50:57,634 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 [2024-11-28 04:50:57,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:50:57,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:50:57,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:50:57,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:50:57,653 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 04:50:57,654 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 04:50:57,661 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:50:57,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-28 04:50:57,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:57,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:57,674 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:57,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-28 04:50:57,678 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 [2024-11-28 04:50:57,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:50:57,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:50:57,694 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:50:57,694 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:50:57,696 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 04:50:57,696 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 04:50:57,702 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:50:57,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-28 04:50:57,713 INFO L451 LassoAnalysis]: Using template '2-nested'. [2024-11-28 04:50:57,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:57,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:57,715 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:57,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-28 04:50:57,720 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 [2024-11-28 04:50:57,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:50:57,736 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:50:57,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:50:57,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:50:57,736 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-28 04:50:57,742 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-28 04:50:57,742 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:50:57,750 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 04:50:57,762 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-11-28 04:50:57,762 INFO L444 ModelExtractionUtils]: 3 out of 9 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-11-28 04:50:57,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:57,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:57,766 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:57,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-28 04:50:57,768 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 04:50:57,769 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 04:50:57,769 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 04:50:57,769 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*ULTIMATE.start_main_~x~0#1 f1 = 1*ULTIMATE.start_main_~y~0#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-28 04:50:57,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-11-28 04:50:57,780 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 04:50:57,782 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-28 04:50:57,782 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-28 04:50:57,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:57,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:57,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:50:57,813 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:57,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:57,834 WARN L254 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:50:57,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:58,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-28 04:50:58,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-28 04:50:58,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:50:58,156 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2024-11-28 04:50:58,156 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 25 transitions. cyclomatic complexity: 9 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2024-11-28 04:50:58,240 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 25 transitions. cyclomatic complexity: 9. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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 49 states and 63 transitions. Complement of second has 10 states. [2024-11-28 04:50:58,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-28 04:50:58,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2024-11-28 04:50:58,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 22 transitions. [2024-11-28 04:50:58,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 8 letters. Loop has 4 letters. [2024-11-28 04:50:58,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:50:58,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 12 letters. Loop has 4 letters. [2024-11-28 04:50:58,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:50:58,247 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 8 letters. Loop has 8 letters. [2024-11-28 04:50:58,247 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:50:58,247 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 63 transitions. [2024-11-28 04:50:58,248 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 04:50:58,252 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 34 states and 43 transitions. [2024-11-28 04:50:58,254 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-11-28 04:50:58,254 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2024-11-28 04:50:58,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 43 transitions. [2024-11-28 04:50:58,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 04:50:58,254 INFO L218 hiAutomatonCegarLoop]: Abstraction has 34 states and 43 transitions. [2024-11-28 04:50:58,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 43 transitions. [2024-11-28 04:50:58,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 28. [2024-11-28 04:50:58,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:50:58,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2024-11-28 04:50:58,260 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 36 transitions. [2024-11-28 04:50:58,260 INFO L425 stractBuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2024-11-28 04:50:58,260 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-28 04:50:58,260 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 36 transitions. [2024-11-28 04:50:58,261 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 04:50:58,261 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:50:58,261 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:50:58,262 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 04:50:58,262 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 04:50:58,262 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000;" "assume main_~y~0#1 >= 1;" "main_~x~0#1 := main_~x~0#1 - 1;" "assume !(main_~y~0#1 < main_~z~0#1);" "main_~y~0#1 := main_~x~0#1 + main_~y~0#1;" "assume main_~y~0#1 >= 1;" "main_~x~0#1 := main_~x~0#1 - 1;" "assume main_~y~0#1 < main_~z~0#1;" "main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1;" "assume !(main_~y~0#1 < main_~z~0#1);" [2024-11-28 04:50:58,262 INFO L749 eck$LassoCheckResult]: Loop: "main_~y~0#1 := main_~x~0#1 + main_~y~0#1;" "assume main_~y~0#1 >= 1;" "main_~x~0#1 := main_~x~0#1 - 1;" "assume !(main_~y~0#1 < main_~z~0#1);" [2024-11-28 04:50:58,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:58,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1168902819, now seen corresponding path program 2 times [2024-11-28 04:50:58,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:50:58,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545846838] [2024-11-28 04:50:58,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:58,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:58,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:50:58,286 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:50:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:50:58,300 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:50:58,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:58,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1798519, now seen corresponding path program 3 times [2024-11-28 04:50:58,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:50:58,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717501666] [2024-11-28 04:50:58,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:58,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:50:58,306 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:50:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:50:58,309 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:50:58,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:58,315 INFO L85 PathProgramCache]: Analyzing trace with hash 631069465, now seen corresponding path program 3 times [2024-11-28 04:50:58,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:50:58,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524771174] [2024-11-28 04:50:58,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:58,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:58,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 04:50:58,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524771174] [2024-11-28 04:50:58,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524771174] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:50:58,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493271222] [2024-11-28 04:50:58,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:58,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:50:58,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:58,508 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:50:58,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-28 04:50:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:58,549 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:50:58,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:58,653 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:50:58,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493271222] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:50:58,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:50:58,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-28 04:50:58,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460544534] [2024-11-28 04:50:58,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:50:58,842 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:50:58,843 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:50:58,843 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:50:58,844 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:50:58,844 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 04:50:58,844 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:58,844 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:50:58,844 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:50:58,844 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration4_Loop [2024-11-28 04:50:58,844 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:50:58,844 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:50:58,845 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:50:58,860 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:50:58,866 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:50:58,924 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:50:58,924 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 04:50:58,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:58,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:58,927 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:58,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-28 04:50:58,931 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:50:58,931 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:50:58,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-11-28 04:50:58,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:58,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:58,960 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:58,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-28 04:50:58,964 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 04:50:58,964 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:50:59,217 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 04:50:59,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-11-28 04:50:59,222 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:50:59,222 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:50:59,222 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:50:59,222 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:50:59,223 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 04:50:59,223 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:59,223 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:50:59,223 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:50:59,223 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration4_Loop [2024-11-28 04:50:59,223 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:50:59,223 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:50:59,224 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:50:59,237 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:50:59,246 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:50:59,310 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:50:59,311 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 04:50:59,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:59,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:59,313 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:59,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-28 04:50:59,318 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 [2024-11-28 04:50:59,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:50:59,333 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:50:59,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:50:59,333 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:50:59,333 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:50:59,335 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:50:59,335 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:50:59,339 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:50:59,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-11-28 04:50:59,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:59,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:59,350 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:59,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-28 04:50:59,355 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 [2024-11-28 04:50:59,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:50:59,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:50:59,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:50:59,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:50:59,371 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 04:50:59,371 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 04:50:59,376 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:50:59,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-11-28 04:50:59,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:59,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:59,388 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:59,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-28 04:50:59,392 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 04:50:59,406 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:50:59,406 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:50:59,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:50:59,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:50:59,408 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 04:50:59,408 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 04:50:59,414 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:50:59,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-11-28 04:50:59,423 INFO L451 LassoAnalysis]: Using template '2-nested'. [2024-11-28 04:50:59,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:59,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:59,425 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:59,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-28 04:50:59,430 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 [2024-11-28 04:50:59,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:50:59,445 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:50:59,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:50:59,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:50:59,446 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-28 04:50:59,448 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-28 04:50:59,448 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:50:59,453 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 04:50:59,461 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-11-28 04:50:59,462 INFO L444 ModelExtractionUtils]: 3 out of 9 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-11-28 04:50:59,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:50:59,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:59,464 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:50:59,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-11-28 04:50:59,466 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 04:50:59,466 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 04:50:59,466 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 04:50:59,467 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*ULTIMATE.start_main_~x~0#1 f1 = 1*ULTIMATE.start_main_~x~0#1 + 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-28 04:50:59,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-11-28 04:50:59,474 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 04:50:59,475 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-28 04:50:59,475 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-28 04:50:59,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:59,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:50:59,502 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:59,525 WARN L254 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:50:59,526 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:59,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:50:59,797 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2024-11-28 04:50:59,797 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 13 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 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) [2024-11-28 04:50:59,854 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 13. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 44 states and 55 transitions. Complement of second has 9 states. [2024-11-28 04:50:59,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-28 04:50:59,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 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) [2024-11-28 04:50:59,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2024-11-28 04:50:59,856 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 12 letters. Loop has 4 letters. [2024-11-28 04:50:59,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:50:59,856 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 04:50:59,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:59,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:59,886 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:50:59,886 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:59,910 WARN L254 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:50:59,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:00,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:51:00,132 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2024-11-28 04:51:00,133 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 13 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 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) [2024-11-28 04:51:00,190 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 13. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 53 transitions. Complement of second has 9 states. [2024-11-28 04:51:00,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-28 04:51:00,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 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) [2024-11-28 04:51:00,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2024-11-28 04:51:00,192 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 12 letters. Loop has 4 letters. [2024-11-28 04:51:00,192 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:51:00,192 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 04:51:00,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:00,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:00,219 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:51:00,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:00,242 WARN L254 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:51:00,242 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:00,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:51:00,468 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 4 loop predicates [2024-11-28 04:51:00,469 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 13 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 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) [2024-11-28 04:51:00,526 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 13. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 56 states and 73 transitions. Complement of second has 11 states. [2024-11-28 04:51:00,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-28 04:51:00,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 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) [2024-11-28 04:51:00,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 25 transitions. [2024-11-28 04:51:00,527 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 12 letters. Loop has 4 letters. [2024-11-28 04:51:00,528 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:51:00,528 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 16 letters. Loop has 4 letters. [2024-11-28 04:51:00,528 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:51:00,528 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 12 letters. Loop has 8 letters. [2024-11-28 04:51:00,532 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:51:00,532 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 73 transitions. [2024-11-28 04:51:00,534 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-28 04:51:00,534 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 36 states and 45 transitions. [2024-11-28 04:51:00,534 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-11-28 04:51:00,534 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2024-11-28 04:51:00,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 45 transitions. [2024-11-28 04:51:00,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 04:51:00,535 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 45 transitions. [2024-11-28 04:51:00,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 45 transitions. [2024-11-28 04:51:00,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 22. [2024-11-28 04:51:00,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 21 states have internal predecessors, (28), 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) [2024-11-28 04:51:00,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2024-11-28 04:51:00,539 INFO L240 hiAutomatonCegarLoop]: Abstraction has 22 states and 28 transitions. [2024-11-28 04:51:00,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 04:51:00,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:51:00,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:51:00,542 INFO L87 Difference]: Start difference. First operand 22 states and 28 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 states have internal predecessors, (24), 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) [2024-11-28 04:51:00,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:00,684 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2024-11-28 04:51:00,684 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 40 transitions. [2024-11-28 04:51:00,685 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-28 04:51:00,685 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 33 states and 40 transitions. [2024-11-28 04:51:00,686 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-11-28 04:51:00,686 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2024-11-28 04:51:00,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 40 transitions. [2024-11-28 04:51:00,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 04:51:00,686 INFO L218 hiAutomatonCegarLoop]: Abstraction has 33 states and 40 transitions. [2024-11-28 04:51:00,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 40 transitions. [2024-11-28 04:51:00,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2024-11-28 04:51:00,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 28 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:51:00,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2024-11-28 04:51:00,696 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 36 transitions. [2024-11-28 04:51:00,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:51:00,697 INFO L425 stractBuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2024-11-28 04:51:00,697 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-28 04:51:00,698 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 36 transitions. [2024-11-28 04:51:00,699 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-28 04:51:00,699 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:51:00,699 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:51:00,700 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:00,700 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 04:51:00,700 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000;" "assume main_~y~0#1 >= 1;" "main_~x~0#1 := main_~x~0#1 - 1;" "assume main_~y~0#1 < main_~z~0#1;" "main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1;" "assume !(main_~y~0#1 < main_~z~0#1);" "main_~y~0#1 := main_~x~0#1 + main_~y~0#1;" "assume main_~y~0#1 >= 1;" "main_~x~0#1 := main_~x~0#1 - 1;" "assume main_~y~0#1 < main_~z~0#1;" [2024-11-28 04:51:00,700 INFO L749 eck$LassoCheckResult]: Loop: "main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1;" "assume main_~y~0#1 < main_~z~0#1;" [2024-11-28 04:51:00,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:00,700 INFO L85 PathProgramCache]: Analyzing trace with hash -709131743, now seen corresponding path program 4 times [2024-11-28 04:51:00,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:51:00,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136717846] [2024-11-28 04:51:00,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:00,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:00,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:51:00,711 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:51:00,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:51:00,724 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:51:00,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:00,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1757, now seen corresponding path program 2 times [2024-11-28 04:51:00,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:51:00,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238467573] [2024-11-28 04:51:00,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:00,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:00,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:51:00,732 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:51:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:51:00,739 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:51:00,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:00,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1424195837, now seen corresponding path program 5 times [2024-11-28 04:51:00,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:51:00,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032458246] [2024-11-28 04:51:00,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:00,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:51:00,755 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:51:00,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:51:00,765 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:51:00,798 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:51:00,798 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:51:00,798 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:51:00,798 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:51:00,798 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 04:51:00,798 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:51:00,798 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:51:00,798 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:51:00,798 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration5_Loop [2024-11-28 04:51:00,799 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:51:00,799 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:51:00,799 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:51:00,806 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:51:00,809 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:51:00,812 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:51:00,855 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:51:00,855 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 04:51:00,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:51:00,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:00,859 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:51:00,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-28 04:51:00,863 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:51:00,864 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:51:00,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-11-28 04:51:00,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:51:00,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:00,891 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:51:00,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-11-28 04:51:00,894 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 04:51:00,894 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:51:00,995 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 04:51:00,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-11-28 04:51:00,998 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:51:00,998 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:51:00,998 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:51:00,998 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:51:00,998 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 04:51:00,998 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:51:00,998 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:51:00,999 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:51:00,999 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration5_Loop [2024-11-28 04:51:00,999 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:51:00,999 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:51:00,999 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:51:01,006 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:51:01,009 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:51:01,013 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:51:01,060 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:51:01,060 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 04:51:01,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:51:01,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:01,062 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:51:01,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-11-28 04:51:01,066 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 [2024-11-28 04:51:01,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:51:01,079 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:51:01,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:51:01,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:51:01,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:51:01,080 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:51:01,080 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:51:01,083 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 04:51:01,087 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-28 04:51:01,087 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-28 04:51:01,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:51:01,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:01,091 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:51:01,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-11-28 04:51:01,094 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 04:51:01,094 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 04:51:01,094 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 04:51:01,094 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~z~0#1) = -1*ULTIMATE.start_main_~y~0#1 + 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2024-11-28 04:51:01,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-11-28 04:51:01,103 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 04:51:01,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:01,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:01,128 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:51:01,128 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:01,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:01,154 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:51:01,154 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:01,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:51:01,167 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 [2024-11-28 04:51:01,167 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 12 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2024-11-28 04:51:01,192 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 12. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 37 states and 46 transitions. Complement of second has 5 states. [2024-11-28 04:51:01,193 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 [2024-11-28 04:51:01,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2024-11-28 04:51:01,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2024-11-28 04:51:01,194 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 12 letters. Loop has 2 letters. [2024-11-28 04:51:01,194 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:51:01,195 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 04:51:01,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:01,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:51:01,224 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:01,248 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:51:01,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:01,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:51:01,260 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 [2024-11-28 04:51:01,260 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 12 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2024-11-28 04:51:01,287 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 12. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 37 states and 46 transitions. Complement of second has 5 states. [2024-11-28 04:51:01,288 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 [2024-11-28 04:51:01,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2024-11-28 04:51:01,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2024-11-28 04:51:01,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 12 letters. Loop has 2 letters. [2024-11-28 04:51:01,291 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:51:01,291 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 04:51:01,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:01,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:01,321 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:51:01,322 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:01,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:01,348 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:51:01,348 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:01,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:51:01,363 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 [2024-11-28 04:51:01,363 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 12 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2024-11-28 04:51:01,386 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 12. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 38 states and 49 transitions. Complement of second has 4 states. [2024-11-28 04:51:01,386 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 [2024-11-28 04:51:01,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2024-11-28 04:51:01,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2024-11-28 04:51:01,387 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 12 letters. Loop has 2 letters. [2024-11-28 04:51:01,387 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:51:01,387 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 14 letters. Loop has 2 letters. [2024-11-28 04:51:01,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:51:01,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 12 letters. Loop has 4 letters. [2024-11-28 04:51:01,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:51:01,388 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 49 transitions. [2024-11-28 04:51:01,389 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-28 04:51:01,389 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 32 states and 40 transitions. [2024-11-28 04:51:01,390 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2024-11-28 04:51:01,390 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2024-11-28 04:51:01,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 40 transitions. [2024-11-28 04:51:01,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 04:51:01,390 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 40 transitions. [2024-11-28 04:51:01,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 40 transitions. [2024-11-28 04:51:01,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28. [2024-11-28 04:51:01,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.25) internal successors, (35), 27 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:51:01,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2024-11-28 04:51:01,393 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 35 transitions. [2024-11-28 04:51:01,393 INFO L425 stractBuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2024-11-28 04:51:01,393 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-28 04:51:01,393 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 35 transitions. [2024-11-28 04:51:01,393 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-28 04:51:01,394 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:51:01,394 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:51:01,394 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:01,394 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-28 04:51:01,394 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000;" "assume main_~y~0#1 >= 1;" "main_~x~0#1 := main_~x~0#1 - 1;" "assume !(main_~y~0#1 < main_~z~0#1);" "main_~y~0#1 := main_~x~0#1 + main_~y~0#1;" "assume main_~y~0#1 >= 1;" "main_~x~0#1 := main_~x~0#1 - 1;" "assume main_~y~0#1 < main_~z~0#1;" "main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1;" [2024-11-28 04:51:01,394 INFO L749 eck$LassoCheckResult]: Loop: "assume !(main_~y~0#1 < main_~z~0#1);" "main_~y~0#1 := main_~x~0#1 + main_~y~0#1;" "assume main_~y~0#1 >= 1;" "main_~x~0#1 := main_~x~0#1 - 1;" "assume main_~y~0#1 < main_~z~0#1;" "main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1;" [2024-11-28 04:51:01,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:01,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1901956108, now seen corresponding path program 6 times [2024-11-28 04:51:01,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:51:01,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969631372] [2024-11-28 04:51:01,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:01,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:51:01,402 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:51:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:51:01,407 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:51:01,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:01,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1573099055, now seen corresponding path program 1 times [2024-11-28 04:51:01,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:51:01,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162876034] [2024-11-28 04:51:01,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:01,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:01,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:51:01,413 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:51:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:51:01,417 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:51:01,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:01,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1911683102, now seen corresponding path program 7 times [2024-11-28 04:51:01,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:51:01,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557440667] [2024-11-28 04:51:01,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:01,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:51:01,425 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:51:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:51:01,436 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:51:01,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2024-11-28 04:51:01,528 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:51:01,528 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:51:01,528 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:51:01,528 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:51:01,528 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 04:51:01,528 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:51:01,528 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:51:01,528 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:51:01,528 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration6_Loop [2024-11-28 04:51:01,528 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:51:01,528 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:51:01,529 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:51:01,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2024-11-28 04:51:01,536 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:51:01,539 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:51:01,616 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:51:01,617 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 04:51:01,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:51:01,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:01,620 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:51:01,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-11-28 04:51:01,622 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:51:01,622 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:51:01,642 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 04:51:01,642 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 04:51:01,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2024-11-28 04:51:01,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:51:01,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:01,651 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:51:01,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-11-28 04:51:01,653 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:51:01,654 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:51:01,673 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 04:51:01,673 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: [] [2024-11-28 04:51:01,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2024-11-28 04:51:01,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:51:01,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:01,681 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:51:01,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-11-28 04:51:01,685 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:51:01,685 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:51:01,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2024-11-28 04:51:01,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:51:01,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:01,709 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:51:01,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-11-28 04:51:01,711 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 04:51:01,711 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:51:01,886 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 04:51:01,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2024-11-28 04:51:01,890 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:51:01,890 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:51:01,890 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:51:01,891 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:51:01,891 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 04:51:01,891 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:51:01,891 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:51:01,891 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:51:01,891 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration6_Loop [2024-11-28 04:51:01,891 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:51:01,891 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:51:01,892 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:51:01,909 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:51:01,912 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:51:01,975 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:51:01,976 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 04:51:01,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:51:01,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:01,980 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:51:01,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-11-28 04:51:01,983 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 [2024-11-28 04:51:01,998 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:51:01,998 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:51:01,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:51:01,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:51:01,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:51:02,001 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:51:02,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:51:02,005 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 04:51:02,010 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 04:51:02,010 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-28 04:51:02,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:51:02,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:02,014 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:51:02,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-11-28 04:51:02,017 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 04:51:02,017 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 04:51:02,018 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 04:51:02,018 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1) = 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2024-11-28 04:51:02,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2024-11-28 04:51:02,028 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 04:51:02,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:02,048 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:51:02,049 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:02,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:02,069 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:51:02,070 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:02,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:51:02,107 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-28 04:51:02,108 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 35 transitions. cyclomatic complexity: 11 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:51:02,180 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 35 transitions. cyclomatic complexity: 11. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 58 states and 76 transitions. Complement of second has 8 states. [2024-11-28 04:51:02,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-28 04:51:02,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:51:02,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2024-11-28 04:51:02,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 11 letters. Loop has 6 letters. [2024-11-28 04:51:02,182 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:51:02,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 17 letters. Loop has 6 letters. [2024-11-28 04:51:02,182 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:51:02,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 11 letters. Loop has 12 letters. [2024-11-28 04:51:02,182 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:51:02,183 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 76 transitions. [2024-11-28 04:51:02,183 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 04:51:02,183 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 0 states and 0 transitions. [2024-11-28 04:51:02,184 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-28 04:51:02,184 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-28 04:51:02,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-28 04:51:02,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 04:51:02,184 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:51:02,184 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:51:02,184 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:51:02,184 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-28 04:51:02,184 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:51:02,184 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 04:51:02,184 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-28 04:51:02,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 04:51:02 BoogieIcfgContainer [2024-11-28 04:51:02,198 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 04:51:02,199 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:51:02,199 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:51:02,199 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:51:02,200 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:50:53" (3/4) ... [2024-11-28 04:51:02,203 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 04:51:02,203 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:51:02,207 INFO L158 Benchmark]: Toolchain (without parser) took 8861.03ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 94.0MB in the beginning and 292.0MB in the end (delta: -198.0MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2024-11-28 04:51:02,207 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 167.8MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:51:02,207 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.75ms. Allocated memory is still 117.4MB. Free memory was 93.6MB in the beginning and 83.6MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:51:02,207 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.55ms. Allocated memory is still 117.4MB. Free memory was 83.6MB in the beginning and 82.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:51:02,208 INFO L158 Benchmark]: Boogie Preprocessor took 27.13ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 81.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:51:02,208 INFO L158 Benchmark]: RCFGBuilder took 249.05ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 72.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:51:02,210 INFO L158 Benchmark]: BuchiAutomizer took 8298.45ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 72.2MB in the beginning and 295.1MB in the end (delta: -222.9MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2024-11-28 04:51:02,211 INFO L158 Benchmark]: Witness Printer took 4.47ms. Allocated memory is still 352.3MB. Free memory was 292.1MB in the beginning and 292.0MB in the end (delta: 72.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:51:02,212 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 167.8MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 247.75ms. Allocated memory is still 117.4MB. Free memory was 93.6MB in the beginning and 83.6MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.55ms. Allocated memory is still 117.4MB. Free memory was 83.6MB in the beginning and 82.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.13ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 81.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 249.05ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 72.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 8298.45ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 72.2MB in the beginning and 295.1MB in the end (delta: -222.9MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. * Witness Printer took 4.47ms. Allocated memory is still 352.3MB. Free memory was 292.1MB in the beginning and 292.0MB in the end (delta: 72.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (1 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has 2-nested ranking function null, null and consists of 5 locations. One deterministic module has affine ranking function (((long) -1 * y) + z) and consists of 4 locations. One deterministic module has 2-nested ranking function null, null and consists of 6 locations. One deterministic module has affine ranking function z and consists of 5 locations. One nondeterministic module has 2-nested ranking function null, null and consists of 6 locations. One nondeterministic module has affine ranking function (((long) -1 * y) + z) and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.2s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 5.1s. Construction of modules took 0.2s. Büchi inclusion checks took 2.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 30 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 115 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 105 mSDsluCounter, 102 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 211 IncrementalHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 92 mSDtfsCounter, 211 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax164 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 50ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-28 04:51:02,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2024-11-28 04:51:02,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-28 04:51:02,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9bcc723-ea21-43c5-b83e-b1ed23e5465b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE