./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 702a5cb4e98140bb9dbcfd0fb89e24e07deb7e8ce40ea61b05e70376d58bbad7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:06:59,432 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:06:59,502 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-28 05:06:59,508 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:06:59,508 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:06:59,535 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:06:59,536 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:06:59,536 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:06:59,536 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:06:59,537 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:06:59,537 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:06:59,537 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:06:59,537 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:06:59,538 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 05:06:59,538 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 05:06:59,538 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 05:06:59,538 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 05:06:59,538 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 05:06:59,538 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 05:06:59,539 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:06:59,539 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 05:06:59,539 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:06:59,539 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:06:59,539 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 05:06:59,539 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 05:06:59,539 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 05:06:59,540 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 05:06:59,540 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:06:59,540 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 05:06:59,540 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:06:59,540 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:06:59,540 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:06:59,540 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:06:59,540 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:06:59,541 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 05:06:59,541 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 05:06:59,541 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_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 702a5cb4e98140bb9dbcfd0fb89e24e07deb7e8ce40ea61b05e70376d58bbad7 [2024-11-28 05:06:59,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:06:59,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:06:59,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:06:59,915 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:06:59,916 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:06:59,917 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c [2024-11-28 05:07:03,200 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/data/4a6d930a0/0c259545fc9e41c6a189b78f587559db/FLAG69e9c58ec [2024-11-28 05:07:03,533 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:07:03,534 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c [2024-11-28 05:07:03,550 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/data/4a6d930a0/0c259545fc9e41c6a189b78f587559db/FLAG69e9c58ec [2024-11-28 05:07:03,569 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/data/4a6d930a0/0c259545fc9e41c6a189b78f587559db [2024-11-28 05:07:03,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:07:03,573 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:07:03,575 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:07:03,575 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:07:03,580 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:07:03,581 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:07:03" (1/1) ... [2024-11-28 05:07:03,583 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9fe263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:03, skipping insertion in model container [2024-11-28 05:07:03,583 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:07:03" (1/1) ... [2024-11-28 05:07:03,599 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:07:03,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:07:03,774 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:07:03,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:07:03,802 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:07:03,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:03 WrapperNode [2024-11-28 05:07:03,803 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:07:03,804 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:07:03,804 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:07:03,804 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:07:03,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:03" (1/1) ... [2024-11-28 05:07:03,816 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:03" (1/1) ... [2024-11-28 05:07:03,838 INFO L138 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2024-11-28 05:07:03,838 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:07:03,839 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:07:03,839 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:07:03,839 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:07:03,849 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:03" (1/1) ... [2024-11-28 05:07:03,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:03" (1/1) ... [2024-11-28 05:07:03,850 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:03" (1/1) ... [2024-11-28 05:07:03,857 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-28 05:07:03,857 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:03" (1/1) ... [2024-11-28 05:07:03,857 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:03" (1/1) ... [2024-11-28 05:07:03,861 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:03" (1/1) ... [2024-11-28 05:07:03,863 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:03" (1/1) ... [2024-11-28 05:07:03,865 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:03" (1/1) ... [2024-11-28 05:07:03,870 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:03" (1/1) ... [2024-11-28 05:07:03,871 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:03" (1/1) ... [2024-11-28 05:07:03,872 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:07:03,873 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:07:03,873 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:07:03,873 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:07:03,874 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:03" (1/1) ... [2024-11-28 05:07:03,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:03,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:03,923 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:03,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 05:07:03,961 INFO L130 BoogieDeclarations]: Found specification of procedure p [2024-11-28 05:07:03,962 INFO L138 BoogieDeclarations]: Found implementation of procedure p [2024-11-28 05:07:03,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:07:03,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:07:04,023 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:07:04,025 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:07:04,189 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-28 05:07:04,190 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:07:04,204 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:07:04,208 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 05:07:04,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:07:04 BoogieIcfgContainer [2024-11-28 05:07:04,209 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:07:04,210 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 05:07:04,210 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 05:07:04,217 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 05:07:04,217 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 05:07:04,218 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 05:07:03" (1/3) ... [2024-11-28 05:07:04,219 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8d4a603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 05:07:04, skipping insertion in model container [2024-11-28 05:07:04,219 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 05:07:04,220 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:03" (2/3) ... [2024-11-28 05:07:04,220 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8d4a603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 05:07:04, skipping insertion in model container [2024-11-28 05:07:04,220 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 05:07:04,221 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:07:04" (3/3) ... [2024-11-28 05:07:04,223 INFO L363 chiAutomizerObserver]: Analyzing ICFG LeeJonesBen-Amram-POPL2001-Ex4.c [2024-11-28 05:07:04,292 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 05:07:04,292 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 05:07:04,293 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 05:07:04,293 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 05:07:04,293 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 05:07:04,294 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 05:07:04,294 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 05:07:04,294 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 05:07:04,303 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 05:07:04,329 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 05:07:04,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:07:04,330 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:07:04,338 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-28 05:07:04,339 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-28 05:07:04,339 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 05:07:04,339 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 05:07:04,342 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 05:07:04,343 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:07:04,343 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:07:04,344 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-28 05:07:04,344 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-28 05:07:04,351 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~m~0#1, main_~n~0#1, main_~r~0#1;havoc main_#t~nondet2#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~r~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;" "assume (main_~m~0#1 >= 0 && main_~n~0#1 >= 0) && main_~r~0#1 >= 0;" "call main_#t~ret5#1 := p(main_~m~0#1, main_~n~0#1, main_~r~0#1);"< [2024-11-28 05:07:04,352 INFO L749 eck$LassoCheckResult]: Loop: "~m := #in~m;~n := #in~n;~r := #in~r;" "assume ~r > 0;" "call #t~ret0 := p(~m, ~r - 1, ~n);"< [2024-11-28 05:07:04,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:04,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1356593, now seen corresponding path program 1 times [2024-11-28 05:07:04,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:07:04,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267210233] [2024-11-28 05:07:04,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:04,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:04,480 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:07:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:04,507 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:07:04,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:04,512 INFO L85 PathProgramCache]: Analyzing trace with hash 29913, now seen corresponding path program 1 times [2024-11-28 05:07:04,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:07:04,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701069784] [2024-11-28 05:07:04,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:04,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:04,526 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:07:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:04,533 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:07:04,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:04,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1759556521, now seen corresponding path program 1 times [2024-11-28 05:07:04,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:07:04,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988526323] [2024-11-28 05:07:04,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:04,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:04,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:04,549 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:07:04,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:04,570 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:07:04,754 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:07:04,755 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:07:04,755 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:07:04,755 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:07:04,756 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 05:07:04,756 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:04,756 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:07:04,756 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:07:04,756 INFO L132 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration1_Loop [2024-11-28 05:07:04,756 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:07:04,757 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:07:04,770 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:04,780 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:04,785 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:04,789 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:04,793 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:04,797 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:04,804 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:04,817 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:04,908 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:07:04,908 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 05:07:04,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:04,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:04,912 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:04,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-28 05:07:04,915 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:07:04,915 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:04,932 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:07:04,932 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#res=0} Honda state: {p_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:07:04,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-28 05:07:04,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:04,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:04,941 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:04,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-28 05:07:04,944 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:07:04,944 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:04,957 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:07:04,958 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret0=0} Honda state: {p_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:07:04,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-28 05:07:04,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:04,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:04,967 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:04,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-28 05:07:04,970 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:07:04,970 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:04,984 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:07:04,985 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_~m=0} Honda state: {p_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:07:04,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-28 05:07:04,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:04,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:05,000 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:05,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-28 05:07:05,005 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:07:05,005 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:05,025 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:07:05,026 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_~n=0} Honda state: {p_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:07:05,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:05,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:05,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:05,041 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:05,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-28 05:07:05,046 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:07:05,047 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:05,068 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:07:05,068 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret1=0} Honda state: {p_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:07:05,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:05,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:05,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:05,083 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:05,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-28 05:07:05,088 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:07:05,088 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:05,105 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:07:05,105 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#in~m=0} Honda state: {p_#in~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:07:05,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-28 05:07:05,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:05,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:05,118 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:05,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-28 05:07:05,128 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:07:05,128 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:05,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-28 05:07:05,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:05,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:05,168 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:05,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-28 05:07:05,174 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 05:07:05,175 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:05,296 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 05:07:05,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:05,301 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:07:05,301 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:07:05,301 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:07:05,302 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:07:05,302 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 05:07:05,302 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:05,302 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:07:05,302 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:07:05,302 INFO L132 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration1_Loop [2024-11-28 05:07:05,302 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:07:05,302 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:07:05,304 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:05,308 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:05,312 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:05,316 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:05,320 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:05,324 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:05,330 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:05,343 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:05,456 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:07:05,462 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 05:07:05,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:05,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:05,467 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:05,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-28 05:07:05,472 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:05,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:05,489 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:05,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:05,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:05,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:05,495 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:05,495 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:05,498 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:05,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-28 05:07:05,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:05,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:05,510 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:05,515 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:05,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-28 05:07:05,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:05,531 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:05,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:05,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:05,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:05,532 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:05,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:05,534 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:05,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:05,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:05,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:05,547 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:05,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-28 05:07:05,551 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:05,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:05,567 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:05,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:05,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:05,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:05,568 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:05,568 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:05,571 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:05,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:05,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:05,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:05,583 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:05,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-28 05:07:05,588 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:05,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:05,604 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:05,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:05,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:05,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:05,606 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:05,606 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:05,608 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:05,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:05,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:05,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:05,622 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:05,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-28 05:07:05,628 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:05,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:05,644 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:05,645 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:05,645 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:05,645 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:05,646 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:05,646 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:05,648 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:05,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-28 05:07:05,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:05,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:05,661 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:05,666 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 [2024-11-28 05:07:05,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-28 05:07:05,680 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:05,680 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:05,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:05,680 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:05,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:05,682 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:05,682 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:05,687 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:05,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:05,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:05,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:05,700 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:05,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-28 05:07:05,705 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:05,717 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:05,717 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:05,717 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:05,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:05,718 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:05,719 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:05,720 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:05,723 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:05,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-28 05:07:05,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:05,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:05,738 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:05,741 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:05,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-28 05:07:05,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:05,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:05,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:05,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:05,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:05,758 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:05,758 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:05,760 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:05,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:05,771 INFO L451 LassoAnalysis]: Using template '2-nested'. [2024-11-28 05:07:05,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:05,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:05,773 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:05,777 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:05,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-28 05:07:05,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:05,791 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:05,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:05,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:05,792 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-28 05:07:05,793 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-28 05:07:05,793 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:05,795 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:05,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:05,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:05,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:05,809 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:05,813 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:05,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-28 05:07:05,825 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:05,825 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:05,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:05,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:05,826 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-28 05:07:05,827 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-28 05:07:05,827 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:05,830 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:05,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:05,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:05,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:05,842 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:05,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-28 05:07:05,844 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:05,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:05,857 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:05,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:05,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:05,857 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-28 05:07:05,858 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-28 05:07:05,858 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:05,861 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:05,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-28 05:07:05,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:05,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:05,870 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:05,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-28 05:07:05,874 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:05,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:05,887 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:05,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:05,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:05,887 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-28 05:07:05,888 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-28 05:07:05,888 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:05,894 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:05,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:05,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:05,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:05,908 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:05,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-28 05:07:05,912 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:05,928 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:05,928 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:05,928 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:05,928 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:05,928 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-28 05:07:05,929 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-28 05:07:05,929 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:05,931 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:05,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:05,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:05,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:05,944 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:05,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-28 05:07:05,949 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:05,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:05,965 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:05,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:05,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:05,965 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-28 05:07:05,967 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-28 05:07:05,967 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:05,972 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:05,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:05,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:05,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:05,985 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:05,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-28 05:07:05,992 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:06,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:06,008 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:06,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:06,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:06,009 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-28 05:07:06,013 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-28 05:07:06,013 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:06,019 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 05:07:06,039 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-11-28 05:07:06,043 INFO L444 ModelExtractionUtils]: 1 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-11-28 05:07:06,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:06,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:06,054 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:06,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-28 05:07:06,059 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 05:07:06,059 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 05:07:06,060 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 05:07:06,060 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*p_#in~n + 1*p_#in~r f1 = 1*p_#in~r Supporting invariants [] [2024-11-28 05:07:06,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-28 05:07:06,075 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 05:07:06,088 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-28 05:07:06,089 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-28 05:07:06,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:06,162 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 05:07:06,164 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:06,200 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 05:07:06,202 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:06,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:07:06,575 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-28 05:07:06,578 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:06,856 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 48 states and 60 transitions. Complement of second has 16 states. [2024-11-28 05:07:06,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-28 05:07:06,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-28 05:07:06,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:06,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2024-11-28 05:07:06,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 4 letters. Loop has 3 letters. [2024-11-28 05:07:06,879 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:07:06,879 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2024-11-28 05:07:06,879 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:07:06,879 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 4 letters. Loop has 6 letters. [2024-11-28 05:07:06,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:07:06,881 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 60 transitions. [2024-11-28 05:07:06,886 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 05:07:06,892 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 21 states and 24 transitions. [2024-11-28 05:07:06,893 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-11-28 05:07:06,893 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2024-11-28 05:07:06,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 24 transitions. [2024-11-28 05:07:06,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:07:06,894 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 24 transitions. [2024-11-28 05:07:06,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 24 transitions. [2024-11-28 05:07:06,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 14. [2024-11-28 05:07:06,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:06,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2024-11-28 05:07:06,929 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 17 transitions. [2024-11-28 05:07:06,929 INFO L425 stractBuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2024-11-28 05:07:06,929 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-28 05:07:06,929 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 17 transitions. [2024-11-28 05:07:06,931 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 05:07:06,931 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:07:06,931 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:07:06,931 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-28 05:07:06,931 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 05:07:06,932 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~m~0#1, main_~n~0#1, main_~r~0#1;havoc main_#t~nondet2#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~r~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;" "assume (main_~m~0#1 >= 0 && main_~n~0#1 >= 0) && main_~r~0#1 >= 0;" "call main_#t~ret5#1 := p(main_~m~0#1, main_~n~0#1, main_~r~0#1);"< "~m := #in~m;~n := #in~n;~r := #in~r;" "assume !(~r > 0);" [2024-11-28 05:07:06,932 INFO L749 eck$LassoCheckResult]: Loop: "assume ~n > 0;" "call #t~ret1 := p(~r, ~n - 1, ~m);"< "~m := #in~m;~n := #in~n;~r := #in~r;" "assume !(~r > 0);" [2024-11-28 05:07:06,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:06,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1303685879, now seen corresponding path program 1 times [2024-11-28 05:07:06,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:07:06,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531952694] [2024-11-28 05:07:06,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:06,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:06,945 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:07:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:06,955 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:07:06,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:06,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1221437, now seen corresponding path program 1 times [2024-11-28 05:07:06,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:07:06,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128310035] [2024-11-28 05:07:06,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:06,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:06,967 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:07:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:06,975 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:07:06,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:06,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1125326029, now seen corresponding path program 1 times [2024-11-28 05:07:06,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:07:06,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749929358] [2024-11-28 05:07:06,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:06,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:06,996 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:07:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:07,010 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:07:07,186 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:07:07,186 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:07:07,186 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:07:07,186 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:07:07,186 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 05:07:07,187 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:07,187 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:07:07,187 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:07:07,187 INFO L132 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration2_Loop [2024-11-28 05:07:07,187 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:07:07,187 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:07:07,188 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:07,191 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:07,194 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:07,197 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:07,214 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:07,316 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:07:07,316 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 05:07:07,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:07,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:07,321 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:07,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-28 05:07:07,324 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:07:07,325 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:07,342 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:07:07,342 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#res=0} Honda state: {p_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:07:07,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:07,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:07,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:07,353 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:07,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-28 05:07:07,355 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:07:07,355 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:07,368 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:07:07,369 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret0=0} Honda state: {p_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:07:07,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-11-28 05:07:07,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:07,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:07,383 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:07,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-28 05:07:07,387 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:07:07,387 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:07,399 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:07:07,399 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret1=0} Honda state: {p_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:07:07,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:07,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:07,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:07,417 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:07,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-28 05:07:07,421 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:07:07,421 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:07,448 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:07:07,449 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#in~m=0, p_~m=0, p_~r=0, p_#in~r=0} Honda state: {p_#in~m=0, p_~m=0, p_~r=0, p_#in~r=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:07:07,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-28 05:07:07,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:07,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:07,460 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:07,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-28 05:07:07,466 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:07:07,466 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:07,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-11-28 05:07:07,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:07,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:07,502 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:07,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-28 05:07:07,507 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 05:07:07,507 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:07,617 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 05:07:07,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-28 05:07:07,622 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:07:07,622 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:07:07,622 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:07:07,622 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:07:07,622 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 05:07:07,622 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:07,622 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:07:07,622 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:07:07,622 INFO L132 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration2_Loop [2024-11-28 05:07:07,622 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:07:07,622 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:07:07,624 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:07,627 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:07,630 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:07,645 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:07,648 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:07,746 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:07:07,747 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 05:07:07,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:07,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:07,749 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:07,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-28 05:07:07,753 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:07,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:07,769 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:07,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:07,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:07,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:07,770 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:07,770 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:07,775 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:07,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-11-28 05:07:07,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:07,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:07,787 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:07,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-28 05:07:07,792 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:07,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:07,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:07,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:07,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:07,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:07,807 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:07,807 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:07,809 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:07,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:07,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:07,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:07,817 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:07,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-28 05:07:07,820 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:07,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:07,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:07,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:07,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:07,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:07,834 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:07,834 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:07,838 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:07,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-11-28 05:07:07,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:07,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:07,852 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:07,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-28 05:07:07,857 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:07,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:07,872 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:07,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:07,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:07,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:07,873 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:07,873 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:07,877 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:07,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:07,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:07,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:07,891 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:07,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-28 05:07:07,894 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:07,906 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:07,907 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:07,907 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:07,907 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:07,907 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:07,908 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:07,909 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:07,912 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 05:07:07,916 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-28 05:07:07,916 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 05:07:07,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:07,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:07,918 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:07,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-28 05:07:07,923 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 05:07:07,923 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 05:07:07,923 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 05:07:07,923 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(p_~n) = 1*p_~n Supporting invariants [] [2024-11-28 05:07:07,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-11-28 05:07:07,936 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 05:07:07,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:07,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:07,988 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 05:07:07,989 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:08,028 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 05:07:08,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:08,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:07:08,104 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2024-11-28 05:07:08,104 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5 Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:08,138 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 31 transitions. Complement of second has 13 states. [2024-11-28 05:07:08,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-28 05:07:08,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:08,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2024-11-28 05:07:08,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 6 letters. Loop has 4 letters. [2024-11-28 05:07:08,142 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:07:08,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 10 letters. Loop has 4 letters. [2024-11-28 05:07:08,143 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:07:08,143 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 6 letters. Loop has 8 letters. [2024-11-28 05:07:08,143 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:07:08,143 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 31 transitions. [2024-11-28 05:07:08,145 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 05:07:08,146 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 21 states and 25 transitions. [2024-11-28 05:07:08,146 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-11-28 05:07:08,146 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-11-28 05:07:08,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 25 transitions. [2024-11-28 05:07:08,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:07:08,147 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 25 transitions. [2024-11-28 05:07:08,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 25 transitions. [2024-11-28 05:07:08,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2024-11-28 05:07:08,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:08,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2024-11-28 05:07:08,149 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 23 transitions. [2024-11-28 05:07:08,149 INFO L425 stractBuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2024-11-28 05:07:08,149 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-28 05:07:08,150 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 23 transitions. [2024-11-28 05:07:08,150 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 05:07:08,150 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:07:08,150 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:07:08,151 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:07:08,151 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-28 05:07:08,151 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~m~0#1, main_~n~0#1, main_~r~0#1;havoc main_#t~nondet2#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~r~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;" "assume (main_~m~0#1 >= 0 && main_~n~0#1 >= 0) && main_~r~0#1 >= 0;" "call main_#t~ret5#1 := p(main_~m~0#1, main_~n~0#1, main_~r~0#1);"< "~m := #in~m;~n := #in~n;~r := #in~r;" "assume !(~r > 0);" "assume ~n > 0;" "call #t~ret1 := p(~r, ~n - 1, ~m);"< "~m := #in~m;~n := #in~n;~r := #in~r;" "assume ~r > 0;" [2024-11-28 05:07:08,152 INFO L749 eck$LassoCheckResult]: Loop: "call #t~ret0 := p(~m, ~r - 1, ~n);"< "~m := #in~m;~n := #in~n;~r := #in~r;" "assume ~r > 0;" [2024-11-28 05:07:08,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:08,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1125326032, now seen corresponding path program 1 times [2024-11-28 05:07:08,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:07:08,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263141595] [2024-11-28 05:07:08,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:08,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:08,168 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:07:08,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:08,183 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:07:08,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:08,184 INFO L85 PathProgramCache]: Analyzing trace with hash 57663, now seen corresponding path program 2 times [2024-11-28 05:07:08,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:07:08,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126092567] [2024-11-28 05:07:08,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:08,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:08,193 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:07:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:08,201 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:07:08,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:08,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1926921136, now seen corresponding path program 1 times [2024-11-28 05:07:08,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:07:08,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108652061] [2024-11-28 05:07:08,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:08,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:08,218 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:07:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:08,233 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:07:08,404 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:07:08,404 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:07:08,404 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:07:08,405 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:07:08,405 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 05:07:08,405 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:08,405 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:07:08,405 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:07:08,405 INFO L132 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration3_Loop [2024-11-28 05:07:08,405 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:07:08,405 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:07:08,408 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:08,423 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:08,426 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:08,434 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:08,437 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:08,518 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:07:08,518 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 05:07:08,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:08,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:08,521 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:08,526 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:07:08,526 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:08,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-28 05:07:08,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:08,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:08,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:08,565 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:08,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-11-28 05:07:08,568 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 05:07:08,568 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:08,939 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 05:07:08,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:08,946 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:07:08,946 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:07:08,947 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:07:08,947 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:07:08,947 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 05:07:08,947 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:08,947 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:07:08,947 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:07:08,947 INFO L132 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration3_Loop [2024-11-28 05:07:08,947 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:07:08,947 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:07:08,948 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:08,952 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:08,965 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:08,973 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:08,976 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:09,056 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:07:09,056 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 05:07:09,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:09,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:09,059 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:09,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-28 05:07:09,063 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:09,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:09,079 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:09,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:09,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:09,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:09,080 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:09,081 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:09,085 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:09,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:09,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:09,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:09,095 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:09,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-11-28 05:07:09,098 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:09,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:09,112 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:09,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:09,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:09,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:09,114 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:09,114 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:09,120 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:09,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-11-28 05:07:09,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:09,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:09,132 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:09,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-11-28 05:07:09,136 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:09,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:09,152 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:09,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:09,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:09,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:09,153 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:09,153 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:09,157 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:09,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-11-28 05:07:09,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:09,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:09,169 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:09,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-11-28 05:07:09,173 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:09,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:09,189 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:09,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:09,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:09,189 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:09,190 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:09,190 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:09,192 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:09,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2024-11-28 05:07:09,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:09,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:09,207 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:09,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-11-28 05:07:09,211 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:09,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:09,227 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:09,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:09,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:09,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:09,227 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:09,228 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:09,229 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:09,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2024-11-28 05:07:09,240 INFO L451 LassoAnalysis]: Using template '2-nested'. [2024-11-28 05:07:09,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:09,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:09,242 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:09,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-11-28 05:07:09,247 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:09,263 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:09,263 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:09,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:09,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:09,264 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-28 05:07:09,264 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-28 05:07:09,264 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:09,266 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:09,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:09,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:09,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:09,280 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:09,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-11-28 05:07:09,285 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:09,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:09,303 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:09,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:09,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:09,303 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-28 05:07:09,306 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-28 05:07:09,306 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:09,312 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 05:07:09,325 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-11-28 05:07:09,326 INFO L444 ModelExtractionUtils]: 5 out of 11 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-11-28 05:07:09,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:09,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:09,328 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:09,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-11-28 05:07:09,331 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 05:07:09,331 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 05:07:09,331 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 05:07:09,331 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*p_~n + 1*p_~r f1 = 1*p_~n Supporting invariants [] [2024-11-28 05:07:09,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:09,339 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 05:07:09,343 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-28 05:07:09,344 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-28 05:07:09,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:09,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:09,392 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 05:07:09,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:09,429 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 05:07:09,430 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:09,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:07:09,786 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-28 05:07:09,786 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 23 transitions. cyclomatic complexity: 7 Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:09,913 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 23 transitions. cyclomatic complexity: 7. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 51 transitions. Complement of second has 9 states. [2024-11-28 05:07:09,914 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 [2024-11-28 05:07:09,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:09,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2024-11-28 05:07:09,915 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 3 letters. [2024-11-28 05:07:09,915 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:07:09,915 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 13 letters. Loop has 3 letters. [2024-11-28 05:07:09,916 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:07:09,916 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 6 letters. [2024-11-28 05:07:09,916 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:07:09,916 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 51 transitions. [2024-11-28 05:07:09,918 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 05:07:09,920 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 37 states and 45 transitions. [2024-11-28 05:07:09,920 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2024-11-28 05:07:09,920 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2024-11-28 05:07:09,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 45 transitions. [2024-11-28 05:07:09,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:07:09,920 INFO L218 hiAutomatonCegarLoop]: Abstraction has 37 states and 45 transitions. [2024-11-28 05:07:09,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 45 transitions. [2024-11-28 05:07:09,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 32. [2024-11-28 05:07:09,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 23 states have internal predecessors, (28), 8 states have call successors, (11), 8 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:09,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2024-11-28 05:07:09,924 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32 states and 39 transitions. [2024-11-28 05:07:09,924 INFO L425 stractBuchiCegarLoop]: Abstraction has 32 states and 39 transitions. [2024-11-28 05:07:09,924 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-28 05:07:09,924 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 39 transitions. [2024-11-28 05:07:09,925 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 05:07:09,925 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:07:09,925 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:07:09,926 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:07:09,926 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 05:07:09,926 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~m~0#1, main_~n~0#1, main_~r~0#1;havoc main_#t~nondet2#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~r~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;" "assume (main_~m~0#1 >= 0 && main_~n~0#1 >= 0) && main_~r~0#1 >= 0;" "call main_#t~ret5#1 := p(main_~m~0#1, main_~n~0#1, main_~r~0#1);"< "~m := #in~m;~n := #in~n;~r := #in~r;" "assume !(~r > 0);" "assume ~n > 0;" "call #t~ret1 := p(~r, ~n - 1, ~m);"< "~m := #in~m;~n := #in~n;~r := #in~r;" "assume ~r > 0;" "call #t~ret0 := p(~m, ~r - 1, ~n);"< "~m := #in~m;~n := #in~n;~r := #in~r;" "assume !(~r > 0);" [2024-11-28 05:07:09,926 INFO L749 eck$LassoCheckResult]: Loop: "assume ~n > 0;" "call #t~ret1 := p(~r, ~n - 1, ~m);"< "~m := #in~m;~n := #in~n;~r := #in~r;" "assume !(~r > 0);" [2024-11-28 05:07:09,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:09,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1926921139, now seen corresponding path program 2 times [2024-11-28 05:07:09,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:07:09,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346634001] [2024-11-28 05:07:09,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:09,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:09,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:09,937 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:07:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:09,948 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:07:09,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:09,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1221437, now seen corresponding path program 2 times [2024-11-28 05:07:09,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:07:09,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846370631] [2024-11-28 05:07:09,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:09,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:09,954 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:07:09,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:09,958 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:07:09,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:09,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1157887471, now seen corresponding path program 3 times [2024-11-28 05:07:09,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:07:09,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558983481] [2024-11-28 05:07:09,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:09,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:09,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:09,970 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:07:09,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:09,982 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:07:10,129 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:07:10,130 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:07:10,130 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:07:10,130 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:07:10,130 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 05:07:10,130 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:10,130 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:07:10,130 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:07:10,130 INFO L132 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration4_Loop [2024-11-28 05:07:10,130 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:07:10,131 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:07:10,132 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:10,141 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:10,146 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:10,149 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:10,160 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:10,229 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:07:10,229 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 05:07:10,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:10,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:10,231 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:10,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-11-28 05:07:10,236 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:07:10,236 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:10,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2024-11-28 05:07:10,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:10,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:10,269 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:10,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-11-28 05:07:10,272 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 05:07:10,272 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:10,373 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 05:07:10,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2024-11-28 05:07:10,377 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:07:10,377 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:07:10,377 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:07:10,377 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:07:10,377 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 05:07:10,377 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:10,378 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:07:10,378 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:07:10,378 INFO L132 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration4_Loop [2024-11-28 05:07:10,378 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:07:10,378 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:07:10,379 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:10,389 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:10,401 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:10,404 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:10,407 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:10,489 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:07:10,489 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 05:07:10,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:10,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:10,492 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:10,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-11-28 05:07:10,496 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:10,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:10,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:10,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:10,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:10,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:10,514 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:10,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:10,519 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 05:07:10,525 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 05:07:10,525 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-28 05:07:10,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:10,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:10,529 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:10,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-11-28 05:07:10,534 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 05:07:10,535 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 05:07:10,535 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 05:07:10,535 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(p_~n) = 1*p_~n Supporting invariants [] [2024-11-28 05:07:10,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2024-11-28 05:07:10,546 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 05:07:10,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:10,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:10,606 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 05:07:10,608 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:10,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:10,658 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 05:07:10,658 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:10,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:07:10,720 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2024-11-28 05:07:10,721 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 39 transitions. cyclomatic complexity: 12 Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:10,752 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 39 transitions. cyclomatic complexity: 12. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 54 transitions. Complement of second has 13 states. [2024-11-28 05:07:10,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-28 05:07:10,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:10,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2024-11-28 05:07:10,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 13 letters. Loop has 4 letters. [2024-11-28 05:07:10,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:07:10,755 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 05:07:10,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:10,800 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 05:07:10,802 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:10,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:10,844 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 05:07:10,845 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:10,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:07:10,905 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2024-11-28 05:07:10,905 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 39 transitions. cyclomatic complexity: 12 Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:10,964 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 39 transitions. cyclomatic complexity: 12. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 54 transitions. Complement of second has 13 states. [2024-11-28 05:07:10,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-28 05:07:10,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:10,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2024-11-28 05:07:10,965 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 13 letters. Loop has 4 letters. [2024-11-28 05:07:10,966 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:07:10,966 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 05:07:10,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:11,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:11,015 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 05:07:11,017 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:11,057 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 05:07:11,058 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:11,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:07:11,117 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2024-11-28 05:07:11,118 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 39 transitions. cyclomatic complexity: 12 Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:11,147 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 39 transitions. cyclomatic complexity: 12. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 56 states and 68 transitions. Complement of second has 15 states. [2024-11-28 05:07:11,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-28 05:07:11,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:11,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2024-11-28 05:07:11,149 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 13 letters. Loop has 4 letters. [2024-11-28 05:07:11,150 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:07:11,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 17 letters. Loop has 4 letters. [2024-11-28 05:07:11,150 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:07:11,151 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 13 letters. Loop has 8 letters. [2024-11-28 05:07:11,151 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:07:11,151 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 68 transitions. [2024-11-28 05:07:11,153 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-28 05:07:11,154 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 39 states and 47 transitions. [2024-11-28 05:07:11,154 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-11-28 05:07:11,155 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2024-11-28 05:07:11,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 47 transitions. [2024-11-28 05:07:11,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:07:11,155 INFO L218 hiAutomatonCegarLoop]: Abstraction has 39 states and 47 transitions. [2024-11-28 05:07:11,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 47 transitions. [2024-11-28 05:07:11,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 24. [2024-11-28 05:07:11,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 17 states have internal predecessors, (23), 5 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:11,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2024-11-28 05:07:11,158 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 29 transitions. [2024-11-28 05:07:11,158 INFO L425 stractBuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2024-11-28 05:07:11,158 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-28 05:07:11,158 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2024-11-28 05:07:11,159 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-28 05:07:11,159 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:07:11,159 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:07:11,160 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:07:11,160 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1] [2024-11-28 05:07:11,160 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~m~0#1, main_~n~0#1, main_~r~0#1;havoc main_#t~nondet2#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~r~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;" "assume (main_~m~0#1 >= 0 && main_~n~0#1 >= 0) && main_~r~0#1 >= 0;" "call main_#t~ret5#1 := p(main_~m~0#1, main_~n~0#1, main_~r~0#1);"< "~m := #in~m;~n := #in~n;~r := #in~r;" "assume ~r > 0;" "call #t~ret0 := p(~m, ~r - 1, ~n);"< "~m := #in~m;~n := #in~n;~r := #in~r;" "assume !(~r > 0);" [2024-11-28 05:07:11,160 INFO L749 eck$LassoCheckResult]: Loop: "assume ~n > 0;" "call #t~ret1 := p(~r, ~n - 1, ~m);"< "~m := #in~m;~n := #in~n;~r := #in~r;" "assume ~r > 0;" "call #t~ret0 := p(~m, ~r - 1, ~n);"< "~m := #in~m;~n := #in~n;~r := #in~r;" "assume !(~r > 0);" [2024-11-28 05:07:11,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:11,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1283297937, now seen corresponding path program 1 times [2024-11-28 05:07:11,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:07:11,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170498264] [2024-11-28 05:07:11,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:11,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:11,169 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:07:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:11,176 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:07:11,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:11,177 INFO L85 PathProgramCache]: Analyzing trace with hash 2028029801, now seen corresponding path program 1 times [2024-11-28 05:07:11,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:07:11,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458703493] [2024-11-28 05:07:11,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:11,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:11,183 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:07:11,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:11,189 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:07:11,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:11,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1308917189, now seen corresponding path program 4 times [2024-11-28 05:07:11,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:07:11,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592781737] [2024-11-28 05:07:11,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:11,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:11,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:11,201 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:07:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:11,212 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:07:11,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-11-28 05:07:11,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2024-11-28 05:07:11,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2024-11-28 05:07:11,542 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:07:11,543 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:07:11,543 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:07:11,543 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:07:11,543 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 05:07:11,543 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:11,543 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:07:11,543 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:07:11,543 INFO L132 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration5_Loop [2024-11-28 05:07:11,543 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:07:11,543 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:07:11,544 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:11,549 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:11,553 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:11,556 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:11,678 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:07:11,678 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 05:07:11,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:11,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:11,684 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:11,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-11-28 05:07:11,687 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:07:11,688 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:11,708 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:07:11,708 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#res=0} Honda state: {p_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:07:11,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:11,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:11,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:11,722 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:11,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2024-11-28 05:07:11,727 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:07:11,727 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:11,748 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:07:11,748 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret1=0} Honda state: {p_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:07:11,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2024-11-28 05:07:11,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:11,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:11,762 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:11,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2024-11-28 05:07:11,768 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:07:11,768 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:11,786 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:07:11,786 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret0=0} Honda state: {p_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:07:11,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:11,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:11,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:11,799 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:11,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2024-11-28 05:07:11,804 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:07:11,804 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:11,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:11,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:11,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:11,849 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:11,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2024-11-28 05:07:11,851 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 05:07:11,851 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:12,250 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 05:07:12,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2024-11-28 05:07:12,257 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:07:12,257 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:07:12,257 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:07:12,257 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:07:12,257 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 05:07:12,257 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:12,257 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:07:12,258 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:07:12,258 INFO L132 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration5_Loop [2024-11-28 05:07:12,258 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:07:12,258 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:07:12,259 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:12,265 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:12,269 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:12,275 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:12,415 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:07:12,415 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 05:07:12,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:12,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:12,418 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:12,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2024-11-28 05:07:12,423 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:12,435 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:12,435 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:12,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:12,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:12,436 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:12,436 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:12,436 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:12,438 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:12,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:12,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:12,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:12,448 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:12,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2024-11-28 05:07:12,451 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:12,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:12,463 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:12,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:12,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:12,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:12,464 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:12,464 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:12,466 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:12,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2024-11-28 05:07:12,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:12,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:12,475 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:12,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2024-11-28 05:07:12,477 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:12,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:12,489 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:12,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:12,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:12,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:12,490 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:12,490 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:12,492 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:12,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:12,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:12,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:12,500 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:12,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2024-11-28 05:07:12,503 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:12,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:12,519 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:12,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:12,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:12,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:12,522 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:12,522 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:12,527 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:12,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2024-11-28 05:07:12,537 INFO L451 LassoAnalysis]: Using template '2-nested'. [2024-11-28 05:07:12,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:12,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:12,540 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:12,544 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:12,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2024-11-28 05:07:12,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:12,559 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:12,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:12,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:12,559 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-28 05:07:12,560 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-28 05:07:12,560 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:12,565 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:12,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:12,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:12,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:12,577 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:12,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2024-11-28 05:07:12,581 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:12,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:12,598 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:12,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:12,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:12,598 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-28 05:07:12,599 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-28 05:07:12,599 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:12,601 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:12,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:12,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:12,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:12,615 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:12,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2024-11-28 05:07:12,620 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:12,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:12,638 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:12,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:12,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:12,638 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-28 05:07:12,639 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-28 05:07:12,639 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:12,642 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:12,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:12,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:12,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:12,656 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:12,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2024-11-28 05:07:12,659 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:12,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:12,672 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:12,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:12,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:12,673 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-28 05:07:12,676 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-28 05:07:12,677 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:12,684 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 05:07:12,693 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-28 05:07:12,693 INFO L444 ModelExtractionUtils]: 10 out of 15 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-28 05:07:12,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:12,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:12,696 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:12,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2024-11-28 05:07:12,701 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 05:07:12,701 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 05:07:12,702 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 05:07:12,702 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*p_~m + 1*p_~r f1 = 1*p_~m Supporting invariants [] [2024-11-28 05:07:12,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2024-11-28 05:07:12,715 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 05:07:12,716 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-28 05:07:12,717 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-28 05:07:12,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:12,760 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 05:07:12,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:12,809 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 05:07:12,810 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:13,215 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:07:13,215 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2024-11-28 05:07:13,216 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 8 Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:13,580 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 8. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 92 states and 110 transitions. Complement of second has 26 states. [2024-11-28 05:07:13,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2024-11-28 05:07:13,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:13,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 19 transitions. [2024-11-28 05:07:13,583 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 9 letters. Loop has 7 letters. [2024-11-28 05:07:13,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:07:13,583 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 16 letters. Loop has 7 letters. [2024-11-28 05:07:13,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:07:13,583 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 9 letters. Loop has 14 letters. [2024-11-28 05:07:13,584 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:07:13,584 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 110 transitions. [2024-11-28 05:07:13,586 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2024-11-28 05:07:13,587 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 77 states and 93 transitions. [2024-11-28 05:07:13,588 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2024-11-28 05:07:13,588 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2024-11-28 05:07:13,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 93 transitions. [2024-11-28 05:07:13,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:07:13,588 INFO L218 hiAutomatonCegarLoop]: Abstraction has 77 states and 93 transitions. [2024-11-28 05:07:13,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 93 transitions. [2024-11-28 05:07:13,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 52. [2024-11-28 05:07:13,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 36 states have internal predecessors, (48), 13 states have call successors, (16), 15 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:13,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 64 transitions. [2024-11-28 05:07:13,593 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 64 transitions. [2024-11-28 05:07:13,593 INFO L425 stractBuchiCegarLoop]: Abstraction has 52 states and 64 transitions. [2024-11-28 05:07:13,593 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-28 05:07:13,593 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 64 transitions. [2024-11-28 05:07:13,594 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2024-11-28 05:07:13,594 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:07:13,594 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:07:13,595 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:07:13,595 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-28 05:07:13,595 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~m~0#1, main_~n~0#1, main_~r~0#1;havoc main_#t~nondet2#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~r~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;" "assume (main_~m~0#1 >= 0 && main_~n~0#1 >= 0) && main_~r~0#1 >= 0;" "call main_#t~ret5#1 := p(main_~m~0#1, main_~n~0#1, main_~r~0#1);"< "~m := #in~m;~n := #in~n;~r := #in~r;" "assume ~r > 0;" "call #t~ret0 := p(~m, ~r - 1, ~n);"< "~m := #in~m;~n := #in~n;~r := #in~r;" "assume !(~r > 0);" "assume ~n > 0;" "call #t~ret1 := p(~r, ~n - 1, ~m);"< "~m := #in~m;~n := #in~n;~r := #in~r;" "assume ~r > 0;" [2024-11-28 05:07:13,595 INFO L749 eck$LassoCheckResult]: Loop: "call #t~ret0 := p(~m, ~r - 1, ~n);"< "~m := #in~m;~n := #in~n;~r := #in~r;" "assume ~r > 0;" [2024-11-28 05:07:13,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:13,595 INFO L85 PathProgramCache]: Analyzing trace with hash 681879976, now seen corresponding path program 5 times [2024-11-28 05:07:13,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:07:13,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988798415] [2024-11-28 05:07:13,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:13,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:13,604 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:07:13,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:13,613 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:07:13,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:13,614 INFO L85 PathProgramCache]: Analyzing trace with hash 57663, now seen corresponding path program 3 times [2024-11-28 05:07:13,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:07:13,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454883738] [2024-11-28 05:07:13,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:13,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:13,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:13,618 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:07:13,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:13,621 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:07:13,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:13,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1308917192, now seen corresponding path program 6 times [2024-11-28 05:07:13,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:07:13,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865739185] [2024-11-28 05:07:13,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:13,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:13,635 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:07:13,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:13,658 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:07:13,796 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:07:13,796 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:07:13,796 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:07:13,797 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:07:13,797 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 05:07:13,797 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:13,797 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:07:13,797 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:07:13,797 INFO L132 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration6_Loop [2024-11-28 05:07:13,797 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:07:13,797 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:07:13,798 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:13,801 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:13,804 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:13,809 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:13,820 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:13,884 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:07:13,884 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 05:07:13,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:13,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:13,887 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:13,893 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:07:13,893 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:13,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2024-11-28 05:07:13,906 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:07:13,907 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#res=0} Honda state: {p_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:07:13,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2024-11-28 05:07:13,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:13,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:13,915 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:13,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2024-11-28 05:07:13,917 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:07:13,917 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:13,930 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:07:13,930 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#t~ret1=0} Honda state: {p_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:07:13,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2024-11-28 05:07:13,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:13,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:13,938 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:13,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2024-11-28 05:07:13,941 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:07:13,941 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:13,969 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:07:13,969 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_#in~m=6, p_~m=6} Honda state: {p_#in~m=6, p_~m=6} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:07:13,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2024-11-28 05:07:13,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:13,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:13,979 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:13,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2024-11-28 05:07:13,981 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:07:13,981 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:14,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:14,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:14,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:14,013 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:14,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2024-11-28 05:07:14,016 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 05:07:14,016 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:14,342 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 05:07:14,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2024-11-28 05:07:14,349 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:07:14,349 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:07:14,349 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:07:14,349 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:07:14,349 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 05:07:14,349 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:14,349 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:07:14,349 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:07:14,349 INFO L132 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration6_Loop [2024-11-28 05:07:14,349 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:07:14,349 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:07:14,350 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:14,353 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:14,355 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:14,366 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:14,371 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:14,432 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:07:14,432 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 05:07:14,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:14,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:14,438 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:14,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2024-11-28 05:07:14,444 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:14,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:14,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:14,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:14,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:14,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:14,460 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:14,460 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:14,465 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:14,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2024-11-28 05:07:14,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:14,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:14,480 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:14,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2024-11-28 05:07:14,488 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:14,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:14,504 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:14,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:14,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:14,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:14,504 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:14,504 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:14,506 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:14,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:14,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:14,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:14,514 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:14,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2024-11-28 05:07:14,516 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:14,529 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:14,529 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:14,529 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:14,529 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:14,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:14,531 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:14,531 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:14,534 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:14,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:14,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:14,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:14,542 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:14,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2024-11-28 05:07:14,545 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:14,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:14,557 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:14,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:14,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:14,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:14,558 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:14,558 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:14,561 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:14,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2024-11-28 05:07:14,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:14,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:14,572 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:14,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2024-11-28 05:07:14,575 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:14,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:14,587 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:14,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:14,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:14,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:14,588 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:14,588 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:14,592 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:14,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2024-11-28 05:07:14,603 INFO L451 LassoAnalysis]: Using template '2-nested'. [2024-11-28 05:07:14,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:14,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:14,605 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:14,609 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:14,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2024-11-28 05:07:14,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:14,625 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:14,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:14,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:14,625 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-28 05:07:14,626 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-28 05:07:14,626 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:14,629 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:14,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2024-11-28 05:07:14,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:14,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:14,644 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:14,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2024-11-28 05:07:14,651 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:14,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:14,667 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:14,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:14,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:14,667 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-28 05:07:14,668 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-28 05:07:14,668 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:14,670 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:14,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Ended with exit code 0 [2024-11-28 05:07:14,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:14,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:14,683 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:14,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2024-11-28 05:07:14,687 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:14,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:14,701 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:14,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:14,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:14,701 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-28 05:07:14,704 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-28 05:07:14,704 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:14,709 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 05:07:14,718 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-11-28 05:07:14,718 INFO L444 ModelExtractionUtils]: 5 out of 11 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-11-28 05:07:14,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:14,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:14,722 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:14,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2024-11-28 05:07:14,724 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 05:07:14,724 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 05:07:14,725 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 05:07:14,725 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*p_~n + 1*p_~r f1 = 1*p_~n Supporting invariants [] [2024-11-28 05:07:14,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:14,736 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 05:07:14,739 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-28 05:07:14,740 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-28 05:07:14,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:14,787 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 05:07:14,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:14,836 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 05:07:14,837 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:15,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2024-11-28 05:07:15,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:15,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:07:15,051 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-28 05:07:15,051 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 64 transitions. cyclomatic complexity: 19 Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:15,171 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 64 transitions. cyclomatic complexity: 19. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 83 states and 105 transitions. Complement of second has 9 states. [2024-11-28 05:07:15,171 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 [2024-11-28 05:07:15,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:15,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2024-11-28 05:07:15,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 13 letters. Loop has 3 letters. [2024-11-28 05:07:15,173 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:07:15,173 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 05:07:15,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:15,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:15,221 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 05:07:15,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:15,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 05:07:15,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:15,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:07:15,444 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 [2024-11-28 05:07:15,444 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 64 transitions. cyclomatic complexity: 19 Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:15,548 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 64 transitions. cyclomatic complexity: 19. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 83 states and 105 transitions. Complement of second has 9 states. [2024-11-28 05:07:15,549 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 [2024-11-28 05:07:15,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:15,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2024-11-28 05:07:15,550 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 13 letters. Loop has 3 letters. [2024-11-28 05:07:15,550 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:07:15,550 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 05:07:15,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:15,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:15,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 05:07:15,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:15,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:15,638 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 05:07:15,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:15,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:07:15,822 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 [2024-11-28 05:07:15,823 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 64 transitions. cyclomatic complexity: 19 Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:15,935 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 64 transitions. cyclomatic complexity: 19. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 88 states and 114 transitions. Complement of second has 8 states. [2024-11-28 05:07:15,936 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 [2024-11-28 05:07:15,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:15,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2024-11-28 05:07:15,937 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 13 letters. Loop has 3 letters. [2024-11-28 05:07:15,937 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:07:15,937 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 3 letters. [2024-11-28 05:07:15,938 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:07:15,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 13 letters. Loop has 6 letters. [2024-11-28 05:07:15,938 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:07:15,938 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 114 transitions. [2024-11-28 05:07:15,940 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-11-28 05:07:15,942 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 62 states and 78 transitions. [2024-11-28 05:07:15,942 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2024-11-28 05:07:15,942 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2024-11-28 05:07:15,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 78 transitions. [2024-11-28 05:07:15,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:07:15,942 INFO L218 hiAutomatonCegarLoop]: Abstraction has 62 states and 78 transitions. [2024-11-28 05:07:15,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 78 transitions. [2024-11-28 05:07:15,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 41. [2024-11-28 05:07:15,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 29 states have internal predecessors, (37), 10 states have call successors, (14), 11 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:15,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2024-11-28 05:07:15,946 INFO L240 hiAutomatonCegarLoop]: Abstraction has 41 states and 51 transitions. [2024-11-28 05:07:15,946 INFO L425 stractBuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2024-11-28 05:07:15,946 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-28 05:07:15,946 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 51 transitions. [2024-11-28 05:07:15,949 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-28 05:07:15,950 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:07:15,950 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:07:15,951 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 05:07:15,952 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1] [2024-11-28 05:07:15,953 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~m~0#1, main_~n~0#1, main_~r~0#1;havoc main_#t~nondet2#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~r~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;" "assume (main_~m~0#1 >= 0 && main_~n~0#1 >= 0) && main_~r~0#1 >= 0;" "call main_#t~ret5#1 := p(main_~m~0#1, main_~n~0#1, main_~r~0#1);"< "~m := #in~m;~n := #in~n;~r := #in~r;" "assume !(~r > 0);" "assume ~n > 0;" "call #t~ret1 := p(~r, ~n - 1, ~m);"< "~m := #in~m;~n := #in~n;~r := #in~r;" "assume !(~r > 0);" "assume ~n > 0;" "call #t~ret1 := p(~r, ~n - 1, ~m);"< "~m := #in~m;~n := #in~n;~r := #in~r;" "assume ~r > 0;" "call #t~ret0 := p(~m, ~r - 1, ~n);"< [2024-11-28 05:07:15,953 INFO L749 eck$LassoCheckResult]: Loop: "~m := #in~m;~n := #in~n;~r := #in~r;" "assume !(~r > 0);" "assume ~n > 0;" "call #t~ret1 := p(~r, ~n - 1, ~m);"< "~m := #in~m;~n := #in~n;~r := #in~r;" "assume ~r > 0;" "call #t~ret0 := p(~m, ~r - 1, ~n);"< [2024-11-28 05:07:15,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:15,953 INFO L85 PathProgramCache]: Analyzing trace with hash 708644913, now seen corresponding path program 7 times [2024-11-28 05:07:15,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:07:15,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274582763] [2024-11-28 05:07:15,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:15,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:15,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:16,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 05:07:16,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274582763] [2024-11-28 05:07:16,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274582763] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:07:16,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484736469] [2024-11-28 05:07:16,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:16,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:07:16,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:16,111 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:07:16,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2024-11-28 05:07:16,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:16,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 05:07:16,150 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:16,176 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:07:16,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484736469] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:07:16,213 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:07:16,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2024-11-28 05:07:16,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101336239] [2024-11-28 05:07:16,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:07:16,216 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 05:07:16,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:16,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1923820573, now seen corresponding path program 2 times [2024-11-28 05:07:16,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:07:16,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816066073] [2024-11-28 05:07:16,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:16,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:16,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:16,225 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:07:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:07:16,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:07:16,399 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:07:16,400 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:07:16,400 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:07:16,400 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:07:16,400 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 05:07:16,400 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:16,400 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:07:16,400 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:07:16,400 INFO L132 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration7_Loop [2024-11-28 05:07:16,400 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:07:16,400 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:07:16,401 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:16,404 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:16,418 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:16,420 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:16,422 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:16,425 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:16,427 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:16,489 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:07:16,489 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 05:07:16,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:16,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:16,495 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:16,497 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:07:16,497 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:16,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2024-11-28 05:07:16,515 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:07:16,515 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {p_~n=0} Honda state: {p_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:07:16,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:16,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:16,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:16,528 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:16,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2024-11-28 05:07:16,534 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:07:16,534 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:16,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:16,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:16,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:16,574 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:16,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2024-11-28 05:07:16,579 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 05:07:16,579 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:07:16,671 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 05:07:16,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:16,674 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:07:16,674 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:07:16,674 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:07:16,675 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:07:16,675 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 05:07:16,675 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:16,675 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:07:16,675 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:07:16,675 INFO L132 ssoRankerPreferences]: Filename of dumped script: LeeJonesBen-Amram-POPL2001-Ex4.c_Iteration7_Loop [2024-11-28 05:07:16,675 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:07:16,675 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:07:16,676 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:16,678 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:16,691 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:16,694 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:16,696 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:16,701 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:16,703 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:07:16,758 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:07:16,758 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 05:07:16,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:16,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:16,763 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:16,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2024-11-28 05:07:16,767 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 [2024-11-28 05:07:16,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:16,778 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:16,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:16,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:16,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:16,779 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:16,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:16,780 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:07:16,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Ended with exit code 0 [2024-11-28 05:07:16,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:16,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:16,788 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:16,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2024-11-28 05:07:16,790 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:07:16,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:07:16,801 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:07:16,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:07:16,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:07:16,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:07:16,803 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:07:16,803 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:07:16,806 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 05:07:16,811 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-28 05:07:16,811 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-11-28 05:07:16,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:07:16,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:16,813 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:16,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2024-11-28 05:07:16,815 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 05:07:16,815 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 05:07:16,816 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 05:07:16,816 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(p_#in~m) = 1*p_#in~m Supporting invariants [] [2024-11-28 05:07:16,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Ended with exit code 0 [2024-11-28 05:07:16,825 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 05:07:16,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:16,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:16,869 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 05:07:16,869 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:16,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:16,911 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 05:07:16,912 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:16,997 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:07:16,998 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2024-11-28 05:07:16,998 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 51 transitions. cyclomatic complexity: 14 Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:17,107 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 51 transitions. cyclomatic complexity: 14. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 175 states and 224 transitions. Complement of second has 25 states. [2024-11-28 05:07:17,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2024-11-28 05:07:17,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:17,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 22 transitions. [2024-11-28 05:07:17,109 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 15 letters. Loop has 7 letters. [2024-11-28 05:07:17,109 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:07:17,109 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 05:07:17,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:17,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:17,162 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 05:07:17,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:17,209 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 05:07:17,210 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:07:17,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:07:17,296 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2024-11-28 05:07:17,296 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 51 transitions. cyclomatic complexity: 14 Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:17,440 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 51 transitions. cyclomatic complexity: 14. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 194 states and 254 transitions. Complement of second has 30 states. [2024-11-28 05:07:17,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2024-11-28 05:07:17,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:17,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 23 transitions. [2024-11-28 05:07:17,444 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 23 transitions. Stem has 15 letters. Loop has 7 letters. [2024-11-28 05:07:17,444 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:07:17,445 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 23 transitions. Stem has 22 letters. Loop has 7 letters. [2024-11-28 05:07:17,445 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:07:17,445 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 23 transitions. Stem has 15 letters. Loop has 14 letters. [2024-11-28 05:07:17,445 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:07:17,445 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 194 states and 254 transitions. [2024-11-28 05:07:17,452 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-11-28 05:07:17,455 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 194 states to 187 states and 243 transitions. [2024-11-28 05:07:17,458 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2024-11-28 05:07:17,458 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2024-11-28 05:07:17,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 187 states and 243 transitions. [2024-11-28 05:07:17,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:07:17,462 INFO L218 hiAutomatonCegarLoop]: Abstraction has 187 states and 243 transitions. [2024-11-28 05:07:17,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states and 243 transitions. [2024-11-28 05:07:17,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 105. [2024-11-28 05:07:17,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 77 states have (on average 1.2597402597402598) internal successors, (97), 67 states have internal predecessors, (97), 28 states have call successors, (43), 37 states have call predecessors, (43), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:17,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 140 transitions. [2024-11-28 05:07:17,479 INFO L240 hiAutomatonCegarLoop]: Abstraction has 105 states and 140 transitions. [2024-11-28 05:07:17,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 05:07:17,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:07:17,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:07:17,482 INFO L87 Difference]: Start difference. First operand 105 states and 140 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:17,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:07:17,554 INFO L93 Difference]: Finished difference Result 109 states and 126 transitions. [2024-11-28 05:07:17,554 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 109 states and 126 transitions. [2024-11-28 05:07:17,556 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 05:07:17,556 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 109 states to 0 states and 0 transitions. [2024-11-28 05:07:17,556 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-28 05:07:17,560 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-28 05:07:17,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-28 05:07:17,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 05:07:17,560 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 05:07:17,560 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 05:07:17,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:07:17,561 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 05:07:17,561 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-28 05:07:17,561 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-28 05:07:17,561 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 05:07:17,561 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-28 05:07:17,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 05:07:17 BoogieIcfgContainer [2024-11-28 05:07:17,578 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 05:07:17,579 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 05:07:17,579 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 05:07:17,580 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 05:07:17,580 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:07:04" (3/4) ... [2024-11-28 05:07:17,583 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 05:07:17,584 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 05:07:17,586 INFO L158 Benchmark]: Toolchain (without parser) took 14011.76ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 94.5MB in the beginning and 145.3MB in the end (delta: -50.7MB). Peak memory consumption was 186.2MB. Max. memory is 16.1GB. [2024-11-28 05:07:17,586 INFO L158 Benchmark]: CDTParser took 0.82ms. Allocated memory is still 167.8MB. Free memory is still 103.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:07:17,587 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.56ms. Allocated memory is still 117.4MB. Free memory was 94.5MB in the beginning and 84.4MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:07:17,587 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.28ms. Allocated memory is still 117.4MB. Free memory was 84.4MB in the beginning and 83.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:07:17,588 INFO L158 Benchmark]: Boogie Preprocessor took 33.30ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 82.6MB in the end (delta: 756.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:07:17,589 INFO L158 Benchmark]: RCFGBuilder took 336.00ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 72.2MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:07:17,589 INFO L158 Benchmark]: BuchiAutomizer took 13368.51ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 71.9MB in the beginning and 145.3MB in the end (delta: -73.5MB). Peak memory consumption was 161.0MB. Max. memory is 16.1GB. [2024-11-28 05:07:17,590 INFO L158 Benchmark]: Witness Printer took 4.74ms. Allocated memory is still 352.3MB. Free memory was 145.3MB in the beginning and 145.3MB in the end (delta: 72.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:07:17,591 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82ms. Allocated memory is still 167.8MB. Free memory is still 103.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.56ms. Allocated memory is still 117.4MB. Free memory was 94.5MB in the beginning and 84.4MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.28ms. Allocated memory is still 117.4MB. Free memory was 84.4MB in the beginning and 83.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.30ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 82.6MB in the end (delta: 756.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 336.00ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 72.2MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 13368.51ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 71.9MB in the beginning and 145.3MB in the end (delta: -73.5MB). Peak memory consumption was 161.0MB. Max. memory is 16.1GB. * Witness Printer took 4.74ms. Allocated memory is still 352.3MB. Free memory was 145.3MB in the beginning and 145.3MB in the end (delta: 72.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: 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 - 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 8 terminating modules (1 trivial, 5 deterministic, 2 nondeterministic). One deterministic module has 2-nested ranking function null, null and consists of 5 locations. One deterministic module has affine ranking function n and consists of 5 locations. One deterministic module has 2-nested ranking function null, null and consists of 4 locations. One deterministic module has 2-nested ranking function null, null and consists of 8 locations. One deterministic module has affine ranking function \old(m) and consists of 8 locations. One nondeterministic module has affine ranking function n and consists of 5 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 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.2s and 8 iterations. TraceHistogramMax:3. Analysis of lassos took 8.1s. Construction of modules took 0.3s. Büchi inclusion checks took 4.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 7. Automata minimization 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 157 StatesRemovedByMinimization, 7 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, 1, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/4 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 192 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 180 mSDsluCounter, 261 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 87 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 270 IncrementalHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 174 mSDtfsCounter, 270 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital25 mio100 ax100 hnf100 lsp79 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq186 hnf89 smp97 dnf100 smp100 tf106 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 3 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 17 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-28 05:07:17,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0 [2024-11-28 05:07:17,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2024-11-28 05:07:18,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cfb6f2-eb59-4067-a132-b2d6689f6996/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE