./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 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/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_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 33be026e9ca846df0a8faa91fc9c2bbf64ee20dbba0f4f48a9cd42fbefb372d5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:20:37,164 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:20:37,267 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-13 13:20:37,278 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:20:37,278 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:20:37,319 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:20:37,319 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:20:37,320 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:20:37,320 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:20:37,321 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:20:37,321 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:20:37,321 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:20:37,321 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:20:37,322 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-13 13:20:37,322 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-13 13:20:37,322 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-13 13:20:37,322 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-13 13:20:37,322 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-13 13:20:37,323 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-13 13:20:37,323 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:20:37,323 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-13 13:20:37,323 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:20:37,327 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:20:37,327 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-13 13:20:37,328 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-13 13:20:37,328 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-13 13:20:37,328 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:20:37,328 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 13:20:37,328 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:20:37,328 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-13 13:20:37,328 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:20:37,328 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:20:37,328 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:20:37,329 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:20:37,329 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:20:37,329 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-13 13:20:37,329 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_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33be026e9ca846df0a8faa91fc9c2bbf64ee20dbba0f4f48a9cd42fbefb372d5 [2024-11-13 13:20:37,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:20:37,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:20:37,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:20:37,778 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:20:37,779 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:20:37,781 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c Unable to find full path for "g++" [2024-11-13 13:20:40,120 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:20:40,487 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:20:40,488 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2024-11-13 13:20:40,497 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/data/50b0a2a18/cac7518372f24d90870631d0014e060e/FLAG0952e7530 [2024-11-13 13:20:40,524 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/data/50b0a2a18/cac7518372f24d90870631d0014e060e [2024-11-13 13:20:40,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:20:40,534 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:20:40,536 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:20:40,538 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:20:40,544 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:20:40,546 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:20:40" (1/1) ... [2024-11-13 13:20:40,550 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@774d5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:40, skipping insertion in model container [2024-11-13 13:20:40,550 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:20:40" (1/1) ... [2024-11-13 13:20:40,571 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:20:40,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:20:40,753 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:20:40,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:20:40,792 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:20:40,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:40 WrapperNode [2024-11-13 13:20:40,792 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:20:40,794 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:20:40,794 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:20:40,794 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:20:40,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:40" (1/1) ... [2024-11-13 13:20:40,812 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:40" (1/1) ... [2024-11-13 13:20:40,832 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2024-11-13 13:20:40,833 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:20:40,834 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:20:40,834 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:20:40,835 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:20:40,845 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:40" (1/1) ... [2024-11-13 13:20:40,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:40" (1/1) ... [2024-11-13 13:20:40,846 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:40" (1/1) ... [2024-11-13 13:20:40,852 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-13 13:20:40,852 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:40" (1/1) ... [2024-11-13 13:20:40,853 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:40" (1/1) ... [2024-11-13 13:20:40,855 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:40" (1/1) ... [2024-11-13 13:20:40,861 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:40" (1/1) ... [2024-11-13 13:20:40,862 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:40" (1/1) ... [2024-11-13 13:20:40,863 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:40" (1/1) ... [2024-11-13 13:20:40,865 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:20:40,867 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:20:40,867 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:20:40,867 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:20:40,869 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:40" (1/1) ... [2024-11-13 13:20:40,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:40,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:40,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:40,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-13 13:20:40,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:20:40,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:20:41,040 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:20:41,043 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:20:41,159 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-13 13:20:41,159 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:20:41,177 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:20:41,177 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 13:20:41,177 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:20:41 BoogieIcfgContainer [2024-11-13 13:20:41,177 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:20:41,178 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-13 13:20:41,178 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-13 13:20:41,188 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-13 13:20:41,189 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 13:20:41,189 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 01:20:40" (1/3) ... [2024-11-13 13:20:41,191 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49cec620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 01:20:41, skipping insertion in model container [2024-11-13 13:20:41,191 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 13:20:41,191 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:20:40" (2/3) ... [2024-11-13 13:20:41,191 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49cec620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 01:20:41, skipping insertion in model container [2024-11-13 13:20:41,191 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 13:20:41,191 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:20:41" (3/3) ... [2024-11-13 13:20:41,195 INFO L333 chiAutomizerObserver]: Analyzing ICFG LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2024-11-13 13:20:41,269 INFO L299 stractBuchiCegarLoop]: Interprodecural is true [2024-11-13 13:20:41,270 INFO L300 stractBuchiCegarLoop]: Hoare is None [2024-11-13 13:20:41,270 INFO L301 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-13 13:20:41,270 INFO L302 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-13 13:20:41,270 INFO L303 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-13 13:20:41,271 INFO L304 stractBuchiCegarLoop]: Difference is false [2024-11-13 13:20:41,271 INFO L305 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-13 13:20:41,271 INFO L309 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-13 13:20:41,277 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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) [2024-11-13 13:20:41,298 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-13 13:20:41,299 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 13:20:41,300 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 13:20:41,305 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-13 13:20:41,306 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 13:20:41,306 INFO L331 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-13 13:20:41,306 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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) [2024-11-13 13:20:41,307 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-13 13:20:41,308 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 13:20:41,309 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 13:20:41,309 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-13 13:20:41,309 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 13:20:41,319 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true 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; 5#L21true assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000; 8#L22-2true [2024-11-13 13:20:41,320 INFO L747 eck$LassoCheckResult]: Loop: 8#L22-2true assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 3#L24-2true assume !(main_~y~0#1 < main_~z~0#1); 9#L24-3true main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 8#L22-2true [2024-11-13 13:20:41,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:41,331 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-11-13 13:20:41,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:41,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812912558] [2024-11-13 13:20:41,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:41,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:41,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:41,446 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:20:41,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:41,473 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:20:41,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:41,478 INFO L85 PathProgramCache]: Analyzing trace with hash 42898, now seen corresponding path program 1 times [2024-11-13 13:20:41,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:41,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586153830] [2024-11-13 13:20:41,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:41,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:41,500 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:20:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:41,512 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:20:41,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:41,514 INFO L85 PathProgramCache]: Analyzing trace with hash 889512785, now seen corresponding path program 1 times [2024-11-13 13:20:41,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:41,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261584031] [2024-11-13 13:20:41,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:41,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:41,530 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:20:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:41,539 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:20:41,644 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 13:20:41,645 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 13:20:41,645 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 13:20:41,646 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 13:20:41,646 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 13:20:41,646 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:41,646 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 13:20:41,646 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 13:20:41,647 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration1_Loop [2024-11-13 13:20:41,647 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 13:20:41,647 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 13:20:41,665 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:41,686 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:41,695 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:41,824 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 13:20:41,824 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 13:20:41,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:41,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:41,829 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:41,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-13 13:20:41,835 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:20:41,835 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:20:41,861 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:20:41,861 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: [] [2024-11-13 13:20:41,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-13 13:20:41,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:41,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:41,878 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:41,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-13 13:20:41,880 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:20:41,880 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:20:41,903 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:20:41,904 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: [] [2024-11-13 13:20:41,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-13 13:20:41,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:41,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:41,919 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:41,921 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:20:41,921 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:20:41,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-13 13:20:41,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-13 13:20:41,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:41,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:41,957 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:41,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-13 13:20:41,959 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 13:20:41,959 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:20:42,214 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 13:20:42,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-13 13:20:42,217 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 13:20:42,217 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 13:20:42,217 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 13:20:42,217 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 13:20:42,218 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 13:20:42,218 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:42,218 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 13:20:42,218 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 13:20:42,218 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration1_Loop [2024-11-13 13:20:42,218 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 13:20:42,218 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 13:20:42,220 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:42,226 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:42,234 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:42,352 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 13:20:42,357 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 13:20:42,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:42,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:42,361 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:42,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-13 13:20:42,365 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 13:20:42,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:20:42,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:20:42,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:20:42,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:20:42,397 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 13:20:42,399 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 13:20:42,413 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:20:42,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-13 13:20:42,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:42,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:42,439 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:42,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-13 13:20:42,443 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 13:20:42,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:20:42,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:20:42,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:20:42,457 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:20:42,461 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 13:20:42,461 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 13:20:42,468 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:20:42,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-13 13:20:42,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:42,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:42,485 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:42,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-13 13:20:42,487 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 13:20:42,501 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:20:42,501 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:20:42,501 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:20:42,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:20:42,502 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:20:42,504 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:20:42,504 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:20:42,508 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:20:42,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-13 13:20:42,529 INFO L451 LassoAnalysis]: Using template '2-nested'. [2024-11-13 13:20:42,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:42,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:42,531 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:42,538 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 13:20:42,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-13 13:20:42,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:20:42,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:20:42,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:20:42,558 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-13 13:20:42,563 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2024-11-13 13:20:42,563 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2024-11-13 13:20:42,572 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:20:42,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-13 13:20:42,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:42,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:42,590 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:42,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-13 13:20:42,593 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 [2024-11-13 13:20:42,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:20:42,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:20:42,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:20:42,609 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-13 13:20:42,616 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2024-11-13 13:20:42,616 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2024-11-13 13:20:42,634 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:20:42,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-13 13:20:42,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:42,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:42,660 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:42,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-13 13:20:42,665 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 13:20:42,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:20:42,683 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:20:42,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:20:42,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:20:42,683 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-13 13:20:42,687 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-13 13:20:42,687 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:20:42,695 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 13:20:42,707 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2024-11-13 13:20:42,710 INFO L444 ModelExtractionUtils]: 4 out of 9 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-11-13 13:20:42,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:42,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:42,716 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:42,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-13 13:20:42,719 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 13:20:42,720 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 13:20:42,720 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 13:20:42,721 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 [] [2024-11-13 13:20:42,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-13 13:20:42,755 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 13:20:42,770 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-13 13:20:42,771 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-13 13:20:42,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:42,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:42,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:20:42,840 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:42,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:42,868 WARN L253 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 13:20:42,869 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:43,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-13 13:20:43,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:43,286 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 [2024-11-13 13:20:43,288 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:43,370 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 41 transitions. Complement of second has 6 states. [2024-11-13 13:20:43,375 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 [2024-11-13 13:20:43,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:43,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2024-11-13 13:20:43,395 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 3 letters. [2024-11-13 13:20:43,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:20:43,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 6 letters. Loop has 3 letters. [2024-11-13 13:20:43,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:20:43,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 6 letters. [2024-11-13 13:20:43,397 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:20:43,398 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 41 transitions. [2024-11-13 13:20:43,401 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-13 13:20:43,406 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 11 states and 15 transitions. [2024-11-13 13:20:43,407 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-11-13 13:20:43,407 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-13 13:20:43,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2024-11-13 13:20:43,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 13:20:43,408 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 15 transitions. [2024-11-13 13:20:43,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2024-11-13 13:20:43,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-11-13 13:20:43,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 10 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) [2024-11-13 13:20:43,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2024-11-13 13:20:43,431 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 15 transitions. [2024-11-13 13:20:43,431 INFO L424 stractBuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2024-11-13 13:20:43,431 INFO L331 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-13 13:20:43,431 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2024-11-13 13:20:43,432 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-13 13:20:43,432 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 13:20:43,432 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 13:20:43,433 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-13 13:20:43,433 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-13 13:20:43,433 INFO L745 eck$LassoCheckResult]: Stem: 89#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 90#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 87#L21 assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000; 88#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 83#L24-2 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 84#L24-2 [2024-11-13 13:20:43,433 INFO L747 eck$LassoCheckResult]: Loop: 84#L24-2 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; 84#L24-2 [2024-11-13 13:20:43,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:43,434 INFO L85 PathProgramCache]: Analyzing trace with hash 28693962, now seen corresponding path program 1 times [2024-11-13 13:20:43,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:43,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364467503] [2024-11-13 13:20:43,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:43,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:43,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:43,443 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:20:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:43,451 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:20:43,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:43,452 INFO L85 PathProgramCache]: Analyzing trace with hash 52, now seen corresponding path program 1 times [2024-11-13 13:20:43,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:43,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841168432] [2024-11-13 13:20:43,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:43,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:43,458 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:20:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:43,462 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:20:43,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:43,463 INFO L85 PathProgramCache]: Analyzing trace with hash 889512843, now seen corresponding path program 2 times [2024-11-13 13:20:43,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:43,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025771242] [2024-11-13 13:20:43,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:43,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:43,473 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:20:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:43,482 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:20:43,517 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 13:20:43,517 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 13:20:43,517 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 13:20:43,517 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 13:20:43,518 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 13:20:43,518 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:43,518 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 13:20:43,518 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 13:20:43,518 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration2_Loop [2024-11-13 13:20:43,518 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 13:20:43,518 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 13:20:43,520 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:43,525 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:43,530 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:43,536 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:43,618 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 13:20:43,618 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 13:20:43,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:43,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:43,621 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:43,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-13 13:20:43,625 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:20:43,625 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:20:43,657 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:20:43,657 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:20:43,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-13 13:20:43,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:43,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:43,681 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:43,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-13 13:20:43,686 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:20:43,686 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:20:43,718 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:20:43,718 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:20:43,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-13 13:20:43,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:43,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:43,746 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:43,750 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:20:43,750 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:20:43,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-13 13:20:43,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-11-13 13:20:43,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:43,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:43,795 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:43,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-13 13:20:43,799 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 13:20:43,799 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:20:43,850 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:20:43,850 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=-3}, {ULTIMATE.start_main_~x~0#1=4}, {ULTIMATE.start_main_~x~0#1=0}] Lambdas: [1, 1, 0] Nus: [0, 1] [2024-11-13 13:20:43,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-13 13:20:43,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:43,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:43,876 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:43,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-13 13:20:43,880 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:20:43,880 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:20:43,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-13 13:20:43,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:43,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:43,929 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:43,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-13 13:20:43,932 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 13:20:43,932 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:20:44,182 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 13:20:44,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-13 13:20:44,186 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 13:20:44,186 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 13:20:44,186 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 13:20:44,186 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 13:20:44,186 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 13:20:44,186 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:44,186 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 13:20:44,186 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 13:20:44,186 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration2_Loop [2024-11-13 13:20:44,186 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 13:20:44,186 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 13:20:44,188 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:44,193 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:44,199 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:44,204 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:44,283 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 13:20:44,283 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 13:20:44,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:44,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:44,286 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:44,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-13 13:20:44,290 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 13:20:44,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:20:44,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:20:44,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:20:44,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:20:44,309 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 13:20:44,309 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 13:20:44,317 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:20:44,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-13 13:20:44,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:44,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:44,346 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:44,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-13 13:20:44,349 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 13:20:44,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:20:44,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:20:44,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:20:44,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:20:44,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:20:44,373 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:20:44,374 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:20:44,379 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:20:44,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-13 13:20:44,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:44,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:44,397 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:44,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-13 13:20:44,399 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 13:20:44,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:20:44,413 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:20:44,413 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:20:44,413 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:20:44,417 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 13:20:44,417 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 13:20:44,424 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:20:44,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-13 13:20:44,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:44,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:44,450 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:44,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-13 13:20:44,453 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 13:20:44,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:20:44,472 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:20:44,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:20:44,472 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:20:44,472 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:20:44,474 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:20:44,474 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:20:44,478 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 13:20:44,486 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-13 13:20:44,486 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 13:20:44,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:44,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:44,489 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:44,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-13 13:20:44,492 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 13:20:44,492 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 13:20:44,493 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 13:20:44,493 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 [] [2024-11-13 13:20:44,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-13 13:20:44,518 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 13:20:44,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:44,558 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:20:44,559 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:44,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:44,582 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 13:20:44,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:44,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:44,583 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-13 13:20:44,583 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 6 Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:44,607 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 6. Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 18 states and 29 transitions. Complement of second has 6 states. [2024-11-13 13:20:44,609 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 [2024-11-13 13:20:44,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:44,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2024-11-13 13:20:44,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 5 letters. Loop has 1 letters. [2024-11-13 13:20:44,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:20:44,611 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 6 letters. Loop has 1 letters. [2024-11-13 13:20:44,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:20:44,611 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 5 letters. Loop has 2 letters. [2024-11-13 13:20:44,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:20:44,611 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 29 transitions. [2024-11-13 13:20:44,612 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-13 13:20:44,613 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 14 states and 20 transitions. [2024-11-13 13:20:44,616 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-11-13 13:20:44,616 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-11-13 13:20:44,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 20 transitions. [2024-11-13 13:20:44,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 13:20:44,616 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 20 transitions. [2024-11-13 13:20:44,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 20 transitions. [2024-11-13 13:20:44,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2024-11-13 13:20:44,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 12 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) [2024-11-13 13:20:44,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 19 transitions. [2024-11-13 13:20:44,618 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 19 transitions. [2024-11-13 13:20:44,618 INFO L424 stractBuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2024-11-13 13:20:44,618 INFO L331 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-13 13:20:44,618 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 19 transitions. [2024-11-13 13:20:44,621 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-13 13:20:44,622 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 13:20:44,622 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 13:20:44,623 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-13 13:20:44,623 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 13:20:44,624 INFO L745 eck$LassoCheckResult]: Stem: 155#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 156#L-1 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; 153#L21 assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000; 154#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 160#L24-2 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; 162#L24-2 assume !(main_~y~0#1 < main_~z~0#1); 151#L24-3 [2024-11-13 13:20:44,624 INFO L747 eck$LassoCheckResult]: Loop: 151#L24-3 main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 157#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 150#L24-2 assume !(main_~y~0#1 < main_~z~0#1); 151#L24-3 [2024-11-13 13:20:44,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:44,624 INFO L85 PathProgramCache]: Analyzing trace with hash 889512841, now seen corresponding path program 1 times [2024-11-13 13:20:44,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:44,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346049796] [2024-11-13 13:20:44,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:44,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:44,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:44,641 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:20:44,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:44,660 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:20:44,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:44,660 INFO L85 PathProgramCache]: Analyzing trace with hash 54238, now seen corresponding path program 2 times [2024-11-13 13:20:44,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:44,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597248177] [2024-11-13 13:20:44,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:44,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:44,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:44,669 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:20:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:44,673 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:20:44,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:44,674 INFO L85 PathProgramCache]: Analyzing trace with hash -471145642, now seen corresponding path program 1 times [2024-11-13 13:20:44,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:44,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758882432] [2024-11-13 13:20:44,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:44,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:44,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:44,685 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:20:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:44,705 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:20:44,752 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 13:20:44,752 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 13:20:44,753 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 13:20:44,753 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 13:20:44,753 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 13:20:44,753 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:44,753 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 13:20:44,753 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 13:20:44,753 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration3_Loop [2024-11-13 13:20:44,753 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 13:20:44,753 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 13:20:44,755 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:44,760 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:44,776 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:44,847 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 13:20:44,847 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 13:20:44,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:44,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:44,850 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:44,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-13 13:20:44,855 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:20:44,855 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:20:44,888 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:20:44,888 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:20:44,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-13 13:20:44,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:44,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:44,911 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:44,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-13 13:20:44,914 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:20:44,914 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:20:44,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-13 13:20:44,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:44,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:44,952 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:44,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-13 13:20:44,956 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 13:20:44,956 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:20:45,328 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 13:20:45,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-13 13:20:45,332 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 13:20:45,333 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 13:20:45,333 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 13:20:45,333 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 13:20:45,333 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 13:20:45,333 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:45,333 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 13:20:45,333 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 13:20:45,333 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration3_Loop [2024-11-13 13:20:45,333 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 13:20:45,333 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 13:20:45,335 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:45,340 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:45,357 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:45,436 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 13:20:45,436 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 13:20:45,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:45,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:45,440 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:45,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-13 13:20:45,447 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 13:20:45,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:20:45,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:20:45,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:20:45,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:20:45,468 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 13:20:45,468 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 13:20:45,474 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:20:45,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-11-13 13:20:45,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:45,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:45,501 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:45,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-13 13:20:45,506 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 13:20:45,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:20:45,522 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:20:45,522 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:20:45,522 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:20:45,522 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:20:45,524 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:20:45,524 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:20:45,528 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:20:45,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-11-13 13:20:45,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:45,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:45,550 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:45,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-13 13:20:45,555 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 13:20:45,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:20:45,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:20:45,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:20:45,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:20:45,571 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 13:20:45,571 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 13:20:45,577 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:20:45,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-13 13:20:45,600 INFO L451 LassoAnalysis]: Using template '2-nested'. [2024-11-13 13:20:45,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:45,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:45,602 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:45,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-13 13:20:45,606 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 13:20:45,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:20:45,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:20:45,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:20:45,624 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-13 13:20:45,628 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2024-11-13 13:20:45,629 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2024-11-13 13:20:45,637 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:20:45,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-11-13 13:20:45,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:45,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:45,662 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:45,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-13 13:20:45,666 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 13:20:45,684 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:20:45,685 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:20:45,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:20:45,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:20:45,685 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-13 13:20:45,687 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-13 13:20:45,687 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:20:45,693 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 13:20:45,706 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-11-13 13:20:45,707 INFO L444 ModelExtractionUtils]: 3 out of 9 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-11-13 13:20:45,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:45,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:45,712 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:45,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-13 13:20:45,714 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 13:20:45,714 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 13:20:45,715 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 13:20:45,715 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 [] [2024-11-13 13:20:45,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-13 13:20:45,739 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 13:20:45,742 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-13 13:20:45,742 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-13 13:20:45,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:45,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:20:45,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:45,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-11-13 13:20:45,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:45,859 WARN L253 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 13:20:45,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:45,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-13 13:20:46,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:46,112 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 13:20:46,113 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 19 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:46,157 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 19 transitions. cyclomatic complexity: 9. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 46 transitions. Complement of second has 8 states. [2024-11-13 13:20:46,158 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 [2024-11-13 13:20:46,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:46,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2024-11-13 13:20:46,160 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 6 letters. Loop has 3 letters. [2024-11-13 13:20:46,160 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:20:46,161 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 9 letters. Loop has 3 letters. [2024-11-13 13:20:46,161 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:20:46,161 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 6 letters. Loop has 6 letters. [2024-11-13 13:20:46,161 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:20:46,161 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 46 transitions. [2024-11-13 13:20:46,163 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-13 13:20:46,164 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 23 states and 34 transitions. [2024-11-13 13:20:46,164 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-11-13 13:20:46,164 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-11-13 13:20:46,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 34 transitions. [2024-11-13 13:20:46,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 13:20:46,165 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 34 transitions. [2024-11-13 13:20:46,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 34 transitions. [2024-11-13 13:20:46,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2024-11-13 13:20:46,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 18 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:46,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 27 transitions. [2024-11-13 13:20:46,169 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 27 transitions. [2024-11-13 13:20:46,169 INFO L424 stractBuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2024-11-13 13:20:46,169 INFO L331 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-13 13:20:46,169 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 27 transitions. [2024-11-13 13:20:46,170 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-13 13:20:46,170 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 13:20:46,170 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 13:20:46,171 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-13 13:20:46,171 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-13 13:20:46,171 INFO L745 eck$LassoCheckResult]: Stem: 255#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 256#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 253#L21 assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000; 254#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 266#L24-2 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 264#L24-2 assume !(main_~y~0#1 < main_~z~0#1); 261#L24-3 main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 259#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 260#L24-2 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 258#L24-2 [2024-11-13 13:20:46,171 INFO L747 eck$LassoCheckResult]: Loop: 258#L24-2 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; 258#L24-2 [2024-11-13 13:20:46,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:46,172 INFO L85 PathProgramCache]: Analyzing trace with hash -471145640, now seen corresponding path program 2 times [2024-11-13 13:20:46,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:46,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649005589] [2024-11-13 13:20:46,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:46,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:46,184 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:20:46,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:46,195 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:20:46,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:46,196 INFO L85 PathProgramCache]: Analyzing trace with hash 52, now seen corresponding path program 2 times [2024-11-13 13:20:46,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:46,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620391833] [2024-11-13 13:20:46,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:46,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:46,201 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:20:46,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:46,205 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:20:46,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:46,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1720612931, now seen corresponding path program 3 times [2024-11-13 13:20:46,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:46,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776321555] [2024-11-13 13:20:46,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:46,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:46,218 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:20:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:46,230 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:20:46,260 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 13:20:46,260 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 13:20:46,260 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 13:20:46,260 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 13:20:46,265 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 13:20:46,265 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:46,265 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 13:20:46,265 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 13:20:46,265 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration4_Loop [2024-11-13 13:20:46,265 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 13:20:46,265 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 13:20:46,266 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:46,279 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:46,286 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:46,291 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:46,358 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 13:20:46,358 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 13:20:46,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:46,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:46,361 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:46,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-13 13:20:46,365 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:20:46,365 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:20:46,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-11-13 13:20:46,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:46,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:46,413 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:46,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-13 13:20:46,415 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 13:20:46,415 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:20:46,644 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 13:20:46,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-11-13 13:20:46,649 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 13:20:46,649 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 13:20:46,649 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 13:20:46,649 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 13:20:46,649 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 13:20:46,649 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:46,649 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 13:20:46,649 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 13:20:46,649 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration4_Loop [2024-11-13 13:20:46,649 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 13:20:46,649 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 13:20:46,651 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:46,662 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:46,667 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:46,678 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:46,759 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 13:20:46,760 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 13:20:46,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:46,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:46,764 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:46,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-13 13:20:46,767 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 13:20:46,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:20:46,783 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:20:46,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:20:46,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:20:46,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:20:46,784 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:20:46,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:20:46,787 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 13:20:46,791 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 13:20:46,791 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 13:20:46,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:46,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:46,794 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:46,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-13 13:20:46,797 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 13:20:46,797 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 13:20:46,797 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 13:20:46,797 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1, ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~z~0#1 - 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-13 13:20:46,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-11-13 13:20:46,817 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 13:20:46,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:46,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:20:46,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:46,875 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 13:20:46,876 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:46,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:46,877 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-13 13:20:46,877 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:46,892 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 31 transitions. Complement of second has 5 states. [2024-11-13 13:20:46,892 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 [2024-11-13 13:20:46,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:46,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-11-13 13:20:46,894 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 1 letters. [2024-11-13 13:20:46,894 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:20:46,894 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 13:20:46,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:46,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:46,924 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:20:46,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:46,949 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 13:20:46,950 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:46,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:46,950 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-13 13:20:46,951 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:46,964 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 31 transitions. Complement of second has 5 states. [2024-11-13 13:20:46,967 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 [2024-11-13 13:20:46,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:46,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-11-13 13:20:46,969 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 1 letters. [2024-11-13 13:20:46,969 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:20:46,969 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 13:20:46,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:47,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:47,004 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:20:47,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:47,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:47,035 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 13:20:47,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:47,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:47,037 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 1 loop predicates [2024-11-13 13:20:47,039 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:47,060 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 46 transitions. Complement of second has 5 states. [2024-11-13 13:20:47,061 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 [2024-11-13 13:20:47,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:47,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2024-11-13 13:20:47,064 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 9 letters. Loop has 1 letters. [2024-11-13 13:20:47,064 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:20:47,064 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 10 letters. Loop has 1 letters. [2024-11-13 13:20:47,065 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:20:47,065 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 9 letters. Loop has 2 letters. [2024-11-13 13:20:47,065 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:20:47,065 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 46 transitions. [2024-11-13 13:20:47,066 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-13 13:20:47,070 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 23 states and 32 transitions. [2024-11-13 13:20:47,070 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-11-13 13:20:47,070 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-11-13 13:20:47,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 32 transitions. [2024-11-13 13:20:47,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 13:20:47,073 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 32 transitions. [2024-11-13 13:20:47,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 32 transitions. [2024-11-13 13:20:47,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2024-11-13 13:20:47,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 18 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:47,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 27 transitions. [2024-11-13 13:20:47,075 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 27 transitions. [2024-11-13 13:20:47,075 INFO L424 stractBuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2024-11-13 13:20:47,075 INFO L331 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-13 13:20:47,075 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 27 transitions. [2024-11-13 13:20:47,079 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-13 13:20:47,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 13:20:47,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 13:20:47,079 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-13 13:20:47,079 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 13:20:47,080 INFO L745 eck$LassoCheckResult]: Stem: 465#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 466#L-1 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; 463#L21 assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000; 464#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 470#L24-2 assume !(main_~y~0#1 < main_~z~0#1); 477#L24-3 main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 476#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 475#L24-2 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; 472#L24-2 assume !(main_~y~0#1 < main_~z~0#1); 467#L24-3 [2024-11-13 13:20:47,080 INFO L747 eck$LassoCheckResult]: Loop: 467#L24-3 main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 468#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 473#L24-2 assume !(main_~y~0#1 < main_~z~0#1); 467#L24-3 [2024-11-13 13:20:47,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:47,081 INFO L85 PathProgramCache]: Analyzing trace with hash -472825222, now seen corresponding path program 4 times [2024-11-13 13:20:47,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:47,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500889206] [2024-11-13 13:20:47,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:47,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:47,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:47,104 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:20:47,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:47,119 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:20:47,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:47,123 INFO L85 PathProgramCache]: Analyzing trace with hash 54238, now seen corresponding path program 3 times [2024-11-13 13:20:47,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:47,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965847140] [2024-11-13 13:20:47,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:47,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:47,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:47,132 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:20:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:47,136 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:20:47,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:47,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1556566725, now seen corresponding path program 5 times [2024-11-13 13:20:47,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:47,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333604564] [2024-11-13 13:20:47,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:47,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:47,315 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:47,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:47,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333604564] [2024-11-13 13:20:47,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333604564] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:20:47,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626683673] [2024-11-13 13:20:47,316 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-13 13:20:47,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:20:47,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:47,318 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:20:47,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-13 13:20:47,357 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-13 13:20:47,357 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:20:47,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 13:20:47,359 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:47,426 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:47,426 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:20:47,540 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:47,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626683673] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:20:47,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:20:47,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2024-11-13 13:20:47,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539400433] [2024-11-13 13:20:47,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:20:47,594 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 13:20:47,594 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 13:20:47,594 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 13:20:47,594 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 13:20:47,594 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 13:20:47,594 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:47,594 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 13:20:47,594 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 13:20:47,594 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration5_Loop [2024-11-13 13:20:47,594 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 13:20:47,594 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 13:20:47,595 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:47,601 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:47,606 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:47,676 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 13:20:47,676 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 13:20:47,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:47,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:47,681 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:47,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-13 13:20:47,684 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:20:47,685 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:20:47,721 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:20:47,721 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:20:47,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-11-13 13:20:47,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:47,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:47,746 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:47,765 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:20:47,765 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:20:47,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-11-13 13:20:47,797 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:20:47,798 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:20:47,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-11-13 13:20:47,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-11-13 13:20:47,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:47,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:47,825 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:47,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-13 13:20:47,832 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:20:47,832 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:20:47,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-11-13 13:20:47,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:47,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:47,880 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:47,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-11-13 13:20:47,886 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 13:20:47,886 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:20:48,321 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 13:20:48,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2024-11-13 13:20:48,326 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 13:20:48,326 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 13:20:48,326 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 13:20:48,326 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 13:20:48,326 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 13:20:48,327 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:48,327 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 13:20:48,327 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 13:20:48,327 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration5_Loop [2024-11-13 13:20:48,327 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 13:20:48,327 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 13:20:48,329 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:48,333 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:48,346 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:48,397 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 13:20:48,398 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 13:20:48,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:48,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:48,399 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:48,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-11-13 13:20:48,401 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 13:20:48,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:20:48,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:20:48,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:20:48,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:20:48,414 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 13:20:48,414 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 13:20:48,418 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:20:48,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-11-13 13:20:48,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:48,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:48,440 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:48,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-11-13 13:20:48,443 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 13:20:48,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:20:48,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:20:48,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:20:48,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:20:48,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:20:48,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:20:48,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:20:48,465 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:20:48,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2024-11-13 13:20:48,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:48,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:48,491 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:48,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-11-13 13:20:48,497 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 13:20:48,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:20:48,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:20:48,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:20:48,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:20:48,518 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 13:20:48,518 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 13:20:48,524 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:20:48,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2024-11-13 13:20:48,549 INFO L451 LassoAnalysis]: Using template '2-nested'. [2024-11-13 13:20:48,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:48,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:48,552 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:48,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-11-13 13:20:48,556 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 13:20:48,574 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:20:48,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:20:48,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:20:48,575 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-13 13:20:48,578 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2024-11-13 13:20:48,578 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2024-11-13 13:20:48,585 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:20:48,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2024-11-13 13:20:48,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:48,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:48,611 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:48,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-11-13 13:20:48,615 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 13:20:48,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:20:48,634 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:20:48,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:20:48,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:20:48,635 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-13 13:20:48,637 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-13 13:20:48,637 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:20:48,642 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 13:20:48,651 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2024-11-13 13:20:48,651 INFO L444 ModelExtractionUtils]: 3 out of 9 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-11-13 13:20:48,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:48,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:48,655 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:48,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-11-13 13:20:48,658 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 13:20:48,659 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 13:20:48,659 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 13:20:48,659 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 [] [2024-11-13 13:20:48,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2024-11-13 13:20:48,684 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 13:20:48,686 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-13 13:20:48,687 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-13 13:20:48,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:48,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:48,720 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:20:48,720 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:48,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:48,743 WARN L253 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 13:20:48,744 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:48,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:48,921 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 13:20:48,921 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:48,961 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 38 transitions. Complement of second has 7 states. [2024-11-13 13:20:48,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-13 13:20:48,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:48,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2024-11-13 13:20:48,963 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 9 letters. Loop has 3 letters. [2024-11-13 13:20:48,963 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:20:48,963 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 13:20:48,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:48,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:48,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:20:48,997 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:49,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:49,019 WARN L253 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 13:20:49,020 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:49,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:49,218 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 13:20:49,219 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:49,258 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 25 states and 33 transitions. Complement of second has 7 states. [2024-11-13 13:20:49,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-13 13:20:49,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:49,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2024-11-13 13:20:49,260 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 3 letters. [2024-11-13 13:20:49,260 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:20:49,260 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 13:20:49,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:49,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:20:49,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:49,315 WARN L253 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 13:20:49,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:49,501 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2024-11-13 13:20:49,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:49,527 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 13:20:49,527 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:49,563 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32 states and 44 transitions. Complement of second has 6 states. [2024-11-13 13:20:49,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-13 13:20:49,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:49,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-11-13 13:20:49,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 9 letters. Loop has 3 letters. [2024-11-13 13:20:49,572 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:20:49,572 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 12 letters. Loop has 3 letters. [2024-11-13 13:20:49,572 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:20:49,572 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 9 letters. Loop has 6 letters. [2024-11-13 13:20:49,577 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:20:49,577 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 44 transitions. [2024-11-13 13:20:49,578 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-13 13:20:49,579 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 25 states and 35 transitions. [2024-11-13 13:20:49,579 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-11-13 13:20:49,579 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-11-13 13:20:49,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 35 transitions. [2024-11-13 13:20:49,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 13:20:49,579 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 35 transitions. [2024-11-13 13:20:49,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 35 transitions. [2024-11-13 13:20:49,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 20. [2024-11-13 13:20:49,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.4) internal successors, (28), 19 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) [2024-11-13 13:20:49,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 28 transitions. [2024-11-13 13:20:49,583 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 28 transitions. [2024-11-13 13:20:49,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:49,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 13:20:49,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:20:49,587 INFO L87 Difference]: Start difference. First operand 20 states and 28 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:49,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:49,751 INFO L93 Difference]: Finished difference Result 22 states and 29 transitions. [2024-11-13 13:20:49,751 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 29 transitions. [2024-11-13 13:20:49,752 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-13 13:20:49,752 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 22 states and 29 transitions. [2024-11-13 13:20:49,752 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-11-13 13:20:49,753 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-11-13 13:20:49,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 29 transitions. [2024-11-13 13:20:49,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 13:20:49,753 INFO L218 hiAutomatonCegarLoop]: Abstraction has 22 states and 29 transitions. [2024-11-13 13:20:49,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 29 transitions. [2024-11-13 13:20:49,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2024-11-13 13:20:49,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.368421052631579) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:49,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2024-11-13 13:20:49,755 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 26 transitions. [2024-11-13 13:20:49,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 13:20:49,757 INFO L424 stractBuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2024-11-13 13:20:49,757 INFO L331 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-13 13:20:49,757 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 26 transitions. [2024-11-13 13:20:49,758 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-13 13:20:49,758 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 13:20:49,758 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 13:20:49,759 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-13 13:20:49,759 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-13 13:20:49,759 INFO L745 eck$LassoCheckResult]: Stem: 845#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 846#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 843#L21 assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000; 844#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 851#L24-2 assume !(main_~y~0#1 < main_~z~0#1); 849#L24-3 main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 850#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 853#L24-2 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 855#L24-2 assume !(main_~y~0#1 < main_~z~0#1); 847#L24-3 [2024-11-13 13:20:49,763 INFO L747 eck$LassoCheckResult]: Loop: 847#L24-3 main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 848#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 856#L24-2 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; 855#L24-2 assume !(main_~y~0#1 < main_~z~0#1); 847#L24-3 [2024-11-13 13:20:49,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:49,763 INFO L85 PathProgramCache]: Analyzing trace with hash -472825222, now seen corresponding path program 6 times [2024-11-13 13:20:49,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:49,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113890584] [2024-11-13 13:20:49,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:49,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:49,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:49,771 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:20:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:49,778 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:20:49,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:49,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1681459, now seen corresponding path program 1 times [2024-11-13 13:20:49,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:49,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580554687] [2024-11-13 13:20:49,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:49,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:49,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:49,785 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:20:49,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:49,796 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:20:49,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:49,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1008928300, now seen corresponding path program 7 times [2024-11-13 13:20:49,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:49,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993622547] [2024-11-13 13:20:49,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:49,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:49,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:49,817 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:20:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:20:49,833 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:20:49,902 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 13:20:49,902 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 13:20:49,902 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 13:20:49,902 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 13:20:49,902 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 13:20:49,903 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:49,903 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 13:20:49,903 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 13:20:49,903 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration6_Loop [2024-11-13 13:20:49,903 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 13:20:49,903 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 13:20:49,904 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:49,909 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:49,913 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:50,028 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 13:20:50,028 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 13:20:50,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:50,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:50,031 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:50,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-11-13 13:20:50,035 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:20:50,036 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:20:50,068 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:20:50,068 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:20:50,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2024-11-13 13:20:50,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:50,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:50,088 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:50,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-11-13 13:20:50,091 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:20:50,091 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:20:50,115 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:20:50,115 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:20:50,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2024-11-13 13:20:50,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:50,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:50,133 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:50,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-11-13 13:20:50,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:20:50,135 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:20:50,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2024-11-13 13:20:50,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:50,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:50,178 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:50,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-11-13 13:20:50,180 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 13:20:50,180 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:20:50,616 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 13:20:50,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2024-11-13 13:20:50,620 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 13:20:50,620 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 13:20:50,620 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 13:20:50,620 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 13:20:50,620 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 13:20:50,620 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:50,620 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 13:20:50,621 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 13:20:50,621 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration6_Loop [2024-11-13 13:20:50,621 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 13:20:50,621 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 13:20:50,622 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:50,626 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:50,648 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:20:50,731 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 13:20:50,731 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 13:20:50,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:50,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:50,734 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:50,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-11-13 13:20:50,738 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 13:20:50,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:20:50,752 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:20:50,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:20:50,752 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:20:50,755 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 13:20:50,755 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 13:20:50,759 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:20:50,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2024-11-13 13:20:50,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:50,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:50,776 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:50,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2024-11-13 13:20:50,778 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 13:20:50,792 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:20:50,792 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:20:50,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:20:50,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:20:50,793 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:20:50,794 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:20:50,794 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:20:50,798 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 13:20:50,802 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 13:20:50,802 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 13:20:50,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:20:50,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:50,804 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:20:50,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2024-11-13 13:20:50,805 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 13:20:50,805 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 13:20:50,805 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 13:20:50,806 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 [] [2024-11-13 13:20:50,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2024-11-13 13:20:50,822 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 13:20:50,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:50,847 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:20:50,847 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:50,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:50,866 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 13:20:50,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:50,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:50,907 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 13:20:50,907 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 26 transitions. cyclomatic complexity: 11 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) [2024-11-13 13:20:50,936 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 26 transitions. cyclomatic complexity: 11. 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 36 states and 51 transitions. Complement of second has 6 states. [2024-11-13 13:20:50,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-13 13:20:50,937 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) [2024-11-13 13:20:50,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2024-11-13 13:20:50,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2024-11-13 13:20:50,938 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:20:50,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 13 letters. Loop has 4 letters. [2024-11-13 13:20:50,938 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:20:50,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 8 letters. [2024-11-13 13:20:50,938 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:20:50,939 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 51 transitions. [2024-11-13 13:20:50,940 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-13 13:20:50,940 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 0 states and 0 transitions. [2024-11-13 13:20:50,940 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-13 13:20:50,940 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-13 13:20:50,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-13 13:20:50,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 13:20:50,940 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 13:20:50,940 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 13:20:50,940 INFO L424 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 13:20:50,940 INFO L331 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-13 13:20:50,941 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-13 13:20:50,941 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-13 13:20:50,941 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-13 13:20:50,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 01:20:50 BoogieIcfgContainer [2024-11-13 13:20:50,950 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-13 13:20:50,951 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:20:50,951 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:20:50,951 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:20:50,952 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:20:41" (3/4) ... [2024-11-13 13:20:50,955 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 13:20:50,956 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:20:50,957 INFO L158 Benchmark]: Toolchain (without parser) took 10423.05ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 66.2MB in the end (delta: 39.8MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2024-11-13 13:20:50,957 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 167.8MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:20:50,957 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.63ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 96.2MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:20:50,958 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.09ms. Allocated memory is still 142.6MB. Free memory was 96.2MB in the beginning and 95.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:20:50,958 INFO L158 Benchmark]: Boogie Preprocessor took 30.91ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 94.3MB in the end (delta: 930.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:20:50,958 INFO L158 Benchmark]: RCFGBuilder took 310.58ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 85.0MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:20:50,959 INFO L158 Benchmark]: BuchiAutomizer took 9772.13ms. Allocated memory is still 142.6MB. Free memory was 85.0MB in the beginning and 66.2MB in the end (delta: 18.7MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2024-11-13 13:20:50,959 INFO L158 Benchmark]: Witness Printer took 4.85ms. Allocated memory is still 142.6MB. Free memory was 66.2MB in the beginning and 66.2MB in the end (delta: 41.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:20:50,961 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 167.8MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.63ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 96.2MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.09ms. Allocated memory is still 142.6MB. Free memory was 96.2MB in the beginning and 95.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.91ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 94.3MB in the end (delta: 930.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 310.58ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 85.0MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 9772.13ms. Allocated memory is still 142.6MB. Free memory was 85.0MB in the beginning and 66.2MB in the end (delta: 18.7MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * Witness Printer took 4.85ms. Allocated memory is still 142.6MB. Free memory was 66.2MB in the beginning and 66.2MB in the end (delta: 41.5kB). 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 4 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 5 locations. One deterministic module has affine ranking function z and consists of 4 locations. One nondeterministic module has affine ranking function (((long) -1 * y) + z) and consists of 4 locations. One nondeterministic module has 2-nested ranking function null, null and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.6s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 6.9s. Construction of modules took 0.2s. Büchi inclusion checks took 2.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 17 StatesRemovedByMinimization, 5 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: 0/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 84 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 142 IncrementalHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 74 mSDtfsCounter, 142 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 smp97 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 43ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.7s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-13 13:20:50,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2024-11-13 13:20:51,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-13 13:20:51,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b54a0-bc09-4dfb-9d8b-c01443ed9b5b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE