./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 30e0974778487c3ac56035f1f8ab25ce73456d36b8987ec761ccfaf99f917331 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:42:54,287 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:42:54,371 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-13 15:42:54,381 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:42:54,381 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:42:54,421 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:42:54,421 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:42:54,421 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:42:54,422 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:42:54,422 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:42:54,422 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:42:54,422 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:42:54,422 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:42:54,422 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-13 15:42:54,423 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-13 15:42:54,423 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-13 15:42:54,423 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-13 15:42:54,423 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-13 15:42:54,424 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-13 15:42:54,424 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:42:54,424 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-13 15:42:54,424 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:42:54,425 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:42:54,425 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-13 15:42:54,425 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-13 15:42:54,425 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-13 15:42:54,425 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:42:54,425 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:42:54,425 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:42:54,426 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-13 15:42:54,426 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:42:54,426 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:42:54,426 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:42:54,426 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:42:54,427 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:42:54,427 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-13 15:42:54,427 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_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30e0974778487c3ac56035f1f8ab25ce73456d36b8987ec761ccfaf99f917331 [2024-11-13 15:42:54,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:42:54,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:42:54,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:42:54,787 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:42:54,787 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:42:54,789 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c Unable to find full path for "g++" [2024-11-13 15:42:56,715 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:42:56,940 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:42:56,941 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2024-11-13 15:42:56,949 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/data/2070eff08/4a65c34bea55429fb567d151a48685a7/FLAGc43369e8c [2024-11-13 15:42:56,964 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/data/2070eff08/4a65c34bea55429fb567d151a48685a7 [2024-11-13 15:42:56,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:42:56,968 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:42:56,978 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:42:56,979 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:42:56,985 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:42:56,996 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:42:56" (1/1) ... [2024-11-13 15:42:56,999 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42c9e3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:56, skipping insertion in model container [2024-11-13 15:42:56,999 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:42:56" (1/1) ... [2024-11-13 15:42:57,014 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:42:57,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:42:57,184 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:42:57,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:42:57,211 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:42:57,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:57 WrapperNode [2024-11-13 15:42:57,212 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:42:57,213 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:42:57,214 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:42:57,214 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:42:57,220 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:57" (1/1) ... [2024-11-13 15:42:57,224 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:57" (1/1) ... [2024-11-13 15:42:57,238 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2024-11-13 15:42:57,241 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:42:57,242 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:42:57,242 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:42:57,242 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:42:57,250 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:57" (1/1) ... [2024-11-13 15:42:57,251 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:57" (1/1) ... [2024-11-13 15:42:57,252 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:57" (1/1) ... [2024-11-13 15:42:57,256 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-13 15:42:57,257 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:57" (1/1) ... [2024-11-13 15:42:57,257 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:57" (1/1) ... [2024-11-13 15:42:57,258 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:57" (1/1) ... [2024-11-13 15:42:57,262 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:57" (1/1) ... [2024-11-13 15:42:57,263 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:57" (1/1) ... [2024-11-13 15:42:57,264 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:57" (1/1) ... [2024-11-13 15:42:57,267 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:42:57,268 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:42:57,268 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:42:57,268 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:42:57,269 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:57" (1/1) ... [2024-11-13 15:42:57,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:42:57,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:42:57,301 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:42:57,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-13 15:42:57,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:42:57,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:42:57,390 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:42:57,391 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:42:57,461 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-13 15:42:57,461 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:42:57,469 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:42:57,470 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 15:42:57,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:42:57 BoogieIcfgContainer [2024-11-13 15:42:57,470 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:42:57,471 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-13 15:42:57,471 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-13 15:42:57,475 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-13 15:42:57,475 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:42:57,475 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 03:42:56" (1/3) ... [2024-11-13 15:42:57,476 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@784cd0e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 03:42:57, skipping insertion in model container [2024-11-13 15:42:57,476 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:42:57,476 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:57" (2/3) ... [2024-11-13 15:42:57,476 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@784cd0e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 03:42:57, skipping insertion in model container [2024-11-13 15:42:57,476 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:42:57,477 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:42:57" (3/3) ... [2024-11-13 15:42:57,478 INFO L333 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2024-11-13 15:42:57,547 INFO L299 stractBuchiCegarLoop]: Interprodecural is true [2024-11-13 15:42:57,547 INFO L300 stractBuchiCegarLoop]: Hoare is None [2024-11-13 15:42:57,547 INFO L301 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-13 15:42:57,547 INFO L302 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-13 15:42:57,547 INFO L303 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-13 15:42:57,548 INFO L304 stractBuchiCegarLoop]: Difference is false [2024-11-13 15:42:57,548 INFO L305 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-13 15:42:57,548 INFO L309 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-13 15:42:57,553 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:42:57,566 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-13 15:42:57,567 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:42:57,567 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:42:57,571 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 15:42:57,572 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 15:42:57,572 INFO L331 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-13 15:42:57,572 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:42:57,573 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-13 15:42:57,573 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:42:57,573 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:42:57,574 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 15:42:57,574 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 15:42:57,580 INFO L745 eck$LassoCheckResult]: Stem: 10#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 7#L18-2true [2024-11-13 15:42:57,581 INFO L747 eck$LassoCheckResult]: Loop: 7#L18-2true assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 12#L19true assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 2#L19-2true main_~y~0#1 := main_~y~0#1 - 1; 7#L18-2true [2024-11-13 15:42:57,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:42:57,586 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-13 15:42:57,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:42:57,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814818704] [2024-11-13 15:42:57,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:42:57,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:42:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:42:57,663 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:42:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:42:57,682 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:42:57,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:42:57,688 INFO L85 PathProgramCache]: Analyzing trace with hash 40491, now seen corresponding path program 1 times [2024-11-13 15:42:57,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:42:57,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178622736] [2024-11-13 15:42:57,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:42:57,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:42:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:42:57,705 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:42:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:42:57,715 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:42:57,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:42:57,717 INFO L85 PathProgramCache]: Analyzing trace with hash 28699433, now seen corresponding path program 1 times [2024-11-13 15:42:57,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:42:57,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566278832] [2024-11-13 15:42:57,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:42:57,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:42:57,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:42:57,730 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:42:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:42:57,741 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:42:57,848 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:42:57,849 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:42:57,849 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:42:57,849 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:42:57,850 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 15:42:57,850 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:42:57,851 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:42:57,851 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:42:57,852 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration1_Loop [2024-11-13 15:42:57,852 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:42:57,852 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:42:57,867 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:42:57,882 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:42:57,889 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:42:57,896 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:42:57,901 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:42:57,992 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:42:57,993 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 15:42:57,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:42:57,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:42:57,998 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:42:58,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-13 15:42:58,001 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:42:58,001 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:42:58,029 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:42:58,030 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:42:58,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-13 15:42:58,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:42:58,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:42:58,053 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:42:58,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-13 15:42:58,055 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:42:58,056 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:42:58,081 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:42:58,081 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:42:58,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-13 15:42:58,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:42:58,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:42:58,100 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:42:58,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-13 15:42:58,102 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:42:58,102 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:42:58,124 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:42:58,124 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:42:58,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-13 15:42:58,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:42:58,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:42:58,138 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:42:58,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-13 15:42:58,141 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:42:58,141 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:42:58,160 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:42:58,160 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:42:58,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-13 15:42:58,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:42:58,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:42:58,183 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:42:58,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-13 15:42:58,186 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:42:58,186 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:42:58,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-13 15:42:58,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:42:58,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:42:58,228 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:42:58,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-13 15:42:58,231 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 15:42:58,231 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:42:58,275 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 15:42:58,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-13 15:42:58,280 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:42:58,280 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:42:58,280 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:42:58,280 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:42:58,280 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:42:58,280 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:42:58,280 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:42:58,281 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:42:58,281 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration1_Loop [2024-11-13 15:42:58,281 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:42:58,281 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:42:58,284 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:42:58,290 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:42:58,296 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:42:58,305 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:42:58,311 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:42:58,395 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:42:58,401 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:42:58,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:42:58,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:42:58,406 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:42:58,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-13 15:42:58,409 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:42:58,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:42:58,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:42:58,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:42:58,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:42:58,432 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:42:58,433 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:42:58,441 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:42:58,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-13 15:42:58,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:42:58,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:42:58,455 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:42:58,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-13 15:42:58,457 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:42:58,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:42:58,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:42:58,470 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:42:58,470 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:42:58,474 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:42:58,474 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:42:58,491 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:42:58,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-13 15:42:58,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:42:58,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:42:58,511 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:42:58,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-13 15:42:58,513 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:42:58,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:42:58,527 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:42:58,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:42:58,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:42:58,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:42:58,529 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:42:58,529 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:42:58,533 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:42:58,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-13 15:42:58,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:42:58,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:42:58,549 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:42:58,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-13 15:42:58,551 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 [2024-11-13 15:42:58,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:42:58,563 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:42:58,563 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:42:58,563 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:42:58,563 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:42:58,571 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:42:58,571 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:42:58,574 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:42:58,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-13 15:42:58,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:42:58,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:42:58,587 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:42:58,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-13 15:42:58,589 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:42:58,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:42:58,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:42:58,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:42:58,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:42:58,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:42:58,604 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:42:58,604 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:42:58,607 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:42:58,610 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 15:42:58,614 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-13 15:42:58,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:42:58,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:42:58,618 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:42:58,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-13 15:42:58,620 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:42:58,621 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 15:42:58,621 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:42:58,621 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [] [2024-11-13 15:42:58,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-13 15:42:58,641 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 15:42:58,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:42:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:42:58,690 INFO L255 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:42:58,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:42:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:42:58,703 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:42:58,704 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:42:58,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:42:58,768 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-13 15:42:58,769 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:42:58,841 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 39 states and 60 transitions. Complement of second has 6 states. [2024-11-13 15:42:58,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 15:42:58,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:42:58,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2024-11-13 15:42:58,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 2 letters. Loop has 3 letters. [2024-11-13 15:42:58,861 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:42:58,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 5 letters. Loop has 3 letters. [2024-11-13 15:42:58,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:42:58,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 2 letters. Loop has 6 letters. [2024-11-13 15:42:58,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:42:58,863 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 60 transitions. [2024-11-13 15:42:58,866 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-13 15:42:58,870 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 21 states and 30 transitions. [2024-11-13 15:42:58,871 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-11-13 15:42:58,871 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-11-13 15:42:58,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 30 transitions. [2024-11-13 15:42:58,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:42:58,872 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 30 transitions. [2024-11-13 15:42:58,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 30 transitions. [2024-11-13 15:42:58,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-13 15:42:58,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 20 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:42:58,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 30 transitions. [2024-11-13 15:42:58,900 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 30 transitions. [2024-11-13 15:42:58,900 INFO L424 stractBuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2024-11-13 15:42:58,901 INFO L331 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-13 15:42:58,901 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 30 transitions. [2024-11-13 15:42:58,902 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-13 15:42:58,904 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:42:58,904 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:42:58,904 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:42:58,904 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 15:42:58,905 INFO L745 eck$LassoCheckResult]: Stem: 106#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 107#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 95#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 97#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 98#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 99#L20-1 assume !main_#t~short3#1; 102#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 103#L20-5 [2024-11-13 15:42:58,905 INFO L747 eck$LassoCheckResult]: Loop: 103#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 111#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 110#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 103#L20-5 [2024-11-13 15:42:58,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:42:58,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1809708177, now seen corresponding path program 1 times [2024-11-13 15:42:58,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:42:58,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675023756] [2024-11-13 15:42:58,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:42:58,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:42:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:42:58,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:42:58,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:42:58,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675023756] [2024-11-13 15:42:58,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675023756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:42:58,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:42:58,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:42:58,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14915362] [2024-11-13 15:42:58,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:42:58,956 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-13 15:42:58,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:42:58,956 INFO L85 PathProgramCache]: Analyzing trace with hash 46776, now seen corresponding path program 1 times [2024-11-13 15:42:58,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:42:58,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722736899] [2024-11-13 15:42:58,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:42:58,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:42:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:42:58,963 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:42:58,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:42:58,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:42:59,029 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:42:59,029 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:42:59,029 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:42:59,029 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:42:59,030 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 15:42:59,030 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:42:59,030 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:42:59,030 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:42:59,030 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration2_Loop [2024-11-13 15:42:59,030 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:42:59,030 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:42:59,031 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:42:59,035 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:42:59,039 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:42:59,046 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:42:59,049 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:42:59,097 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:42:59,097 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 15:42:59,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:42:59,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:42:59,099 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:42:59,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-13 15:42:59,102 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:42:59,103 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:42:59,124 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:42:59,124 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:42:59,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-13 15:42:59,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:42:59,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:42:59,140 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:42:59,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-13 15:42:59,143 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:42:59,143 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:42:59,163 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:42:59,163 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:42:59,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-11-13 15:42:59,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:42:59,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:42:59,178 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:42:59,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-13 15:42:59,180 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:42:59,180 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:42:59,205 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-13 15:42:59,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:42:59,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:42:59,207 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:42:59,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-13 15:42:59,209 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 15:42:59,209 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:42:59,323 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 15:42:59,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-13 15:42:59,326 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:42:59,327 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:42:59,327 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:42:59,327 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:42:59,327 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:42:59,327 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:42:59,327 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:42:59,327 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:42:59,327 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration2_Loop [2024-11-13 15:42:59,327 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:42:59,327 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:42:59,329 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:42:59,336 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:42:59,343 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:42:59,351 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:42:59,353 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:42:59,409 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:42:59,409 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:42:59,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:42:59,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:42:59,412 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:42:59,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-13 15:42:59,416 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:42:59,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:42:59,430 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:42:59,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:42:59,430 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:42:59,434 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:42:59,435 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:42:59,441 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:42:59,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-13 15:42:59,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:42:59,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:42:59,461 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:42:59,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-13 15:42:59,463 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:42:59,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:42:59,479 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:42:59,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:42:59,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:42:59,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:42:59,480 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:42:59,480 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:42:59,483 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:42:59,488 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 15:42:59,488 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-13 15:42:59,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:42:59,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:42:59,491 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:42:59,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-13 15:42:59,494 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:42:59,494 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 15:42:59,494 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:42:59,494 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~m~0#1) = -2*ULTIMATE.start_main_~y~0#1 + 2*ULTIMATE.start_main_~m~0#1 + 1 Supporting invariants [] [2024-11-13 15:42:59,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-13 15:42:59,517 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 15:42:59,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:42:59,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:42:59,560 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:42:59,561 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:42:59,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:42:59,581 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:42:59,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:42:59,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:42:59,695 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 15:42:59,695 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:42:59,775 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 44 states and 63 transitions. Complement of second has 10 states. [2024-11-13 15:42:59,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-13 15:42:59,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:42:59,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 33 transitions. [2024-11-13 15:42:59,777 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 7 letters. Loop has 3 letters. [2024-11-13 15:42:59,777 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:42:59,777 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 10 letters. Loop has 3 letters. [2024-11-13 15:42:59,777 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:42:59,777 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 7 letters. Loop has 6 letters. [2024-11-13 15:42:59,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:42:59,778 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 63 transitions. [2024-11-13 15:42:59,779 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-13 15:42:59,780 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 33 states and 46 transitions. [2024-11-13 15:42:59,780 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2024-11-13 15:42:59,780 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2024-11-13 15:42:59,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 46 transitions. [2024-11-13 15:42:59,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:42:59,780 INFO L218 hiAutomatonCegarLoop]: Abstraction has 33 states and 46 transitions. [2024-11-13 15:42:59,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 46 transitions. [2024-11-13 15:42:59,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27. [2024-11-13 15:42:59,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 26 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:42:59,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 40 transitions. [2024-11-13 15:42:59,782 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 40 transitions. [2024-11-13 15:42:59,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:42:59,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:42:59,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:42:59,787 INFO L87 Difference]: Start difference. First operand 27 states and 40 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:42:59,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:42:59,802 INFO L93 Difference]: Finished difference Result 32 states and 42 transitions. [2024-11-13 15:42:59,802 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2024-11-13 15:42:59,803 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-13 15:42:59,805 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 30 states and 40 transitions. [2024-11-13 15:42:59,806 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2024-11-13 15:42:59,806 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2024-11-13 15:42:59,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 40 transitions. [2024-11-13 15:42:59,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:42:59,809 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 40 transitions. [2024-11-13 15:42:59,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 40 transitions. [2024-11-13 15:42:59,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2024-11-13 15:42:59,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 26 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:42:59,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2024-11-13 15:42:59,812 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 37 transitions. [2024-11-13 15:42:59,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:42:59,814 INFO L424 stractBuchiCegarLoop]: Abstraction has 27 states and 37 transitions. [2024-11-13 15:42:59,814 INFO L331 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-13 15:42:59,814 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 37 transitions. [2024-11-13 15:42:59,814 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-13 15:42:59,816 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:42:59,816 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:42:59,816 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:42:59,816 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:42:59,817 INFO L745 eck$LassoCheckResult]: Stem: 287#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 288#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 276#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 278#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 292#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 297#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 284#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 285#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 282#L20-1 assume !main_#t~short3#1; 289#L20-3 [2024-11-13 15:42:59,817 INFO L747 eck$LassoCheckResult]: Loop: 289#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 294#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 272#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 273#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 296#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 279#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 280#L20-1 assume !main_#t~short3#1; 289#L20-3 [2024-11-13 15:42:59,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:42:59,817 INFO L85 PathProgramCache]: Analyzing trace with hash -332255816, now seen corresponding path program 1 times [2024-11-13 15:42:59,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:42:59,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949456951] [2024-11-13 15:42:59,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:42:59,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:42:59,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:42:59,826 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:42:59,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:42:59,833 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:42:59,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:42:59,834 INFO L85 PathProgramCache]: Analyzing trace with hash -2207195, now seen corresponding path program 1 times [2024-11-13 15:42:59,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:42:59,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243541677] [2024-11-13 15:42:59,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:42:59,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:42:59,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:42:59,841 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:42:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:42:59,846 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:42:59,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:42:59,847 INFO L85 PathProgramCache]: Analyzing trace with hash 776378510, now seen corresponding path program 1 times [2024-11-13 15:42:59,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:42:59,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646536849] [2024-11-13 15:42:59,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:42:59,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:42:59,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:42:59,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-13 15:43:00,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-13 15:43:00,137 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:43:00,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:43:00,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646536849] [2024-11-13 15:43:00,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646536849] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:43:00,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215260309] [2024-11-13 15:43:00,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:00,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:43:00,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:00,139 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:43:00,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-13 15:43:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:00,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 15:43:00,173 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:00,337 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:43:00,337 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:43:00,473 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:43:00,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215260309] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:43:00,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:43:00,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-13 15:43:00,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94226261] [2024-11-13 15:43:00,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:43:00,554 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:43:00,554 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:43:00,555 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:43:00,555 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:43:00,555 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 15:43:00,555 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:00,555 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:43:00,555 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:43:00,555 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration3_Loop [2024-11-13 15:43:00,555 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:43:00,555 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:43:00,556 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:00,569 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:00,576 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:00,580 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:00,583 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:00,586 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:00,594 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:00,674 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:43:00,674 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 15:43:00,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:00,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:00,676 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:00,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-13 15:43:00,682 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:43:00,683 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:00,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-13 15:43:00,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:00,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:00,720 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:00,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-13 15:43:00,722 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 15:43:00,722 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:00,804 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 15:43:00,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-13 15:43:00,807 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:43:00,807 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:43:00,807 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:43:00,807 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:43:00,807 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:43:00,807 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:00,807 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:43:00,807 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:43:00,807 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration3_Loop [2024-11-13 15:43:00,807 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:43:00,807 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:43:00,808 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:00,817 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:00,824 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:00,827 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:00,830 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:00,838 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:00,841 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:00,904 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:43:00,904 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:43:00,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:00,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:00,906 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:00,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-13 15:43:00,908 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:43:00,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:43:00,919 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:43:00,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:43:00,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:43:00,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:43:00,920 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:43:00,920 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:43:00,924 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:43:00,927 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 15:43:00,927 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 15:43:00,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:00,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:00,930 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:00,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-13 15:43:00,933 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:43:00,933 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 15:43:00,933 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:43:00,933 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-13 15:43:00,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-13 15:43:00,950 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 15:43:00,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:00,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:00,983 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:43:00,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:01,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:43:01,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:01,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:43:01,052 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 15:43:01,053 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 37 transitions. cyclomatic complexity: 13 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:01,085 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 37 transitions. cyclomatic complexity: 13. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 92 states and 128 transitions. Complement of second has 6 states. [2024-11-13 15:43:01,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-13 15:43:01,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:01,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2024-11-13 15:43:01,087 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 9 letters. Loop has 7 letters. [2024-11-13 15:43:01,087 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:01,087 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 16 letters. Loop has 7 letters. [2024-11-13 15:43:01,087 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:01,088 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 9 letters. Loop has 14 letters. [2024-11-13 15:43:01,088 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:01,088 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 128 transitions. [2024-11-13 15:43:01,090 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2024-11-13 15:43:01,091 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 68 states and 93 transitions. [2024-11-13 15:43:01,091 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2024-11-13 15:43:01,091 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2024-11-13 15:43:01,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 93 transitions. [2024-11-13 15:43:01,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:43:01,092 INFO L218 hiAutomatonCegarLoop]: Abstraction has 68 states and 93 transitions. [2024-11-13 15:43:01,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 93 transitions. [2024-11-13 15:43:01,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 58. [2024-11-13 15:43:01,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 57 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:01,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 80 transitions. [2024-11-13 15:43:01,096 INFO L240 hiAutomatonCegarLoop]: Abstraction has 58 states and 80 transitions. [2024-11-13 15:43:01,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:43:01,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-13 15:43:01,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-13 15:43:01,097 INFO L87 Difference]: Start difference. First operand 58 states and 80 transitions. Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:01,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-13 15:43:01,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:43:01,599 INFO L93 Difference]: Finished difference Result 114 states and 143 transitions. [2024-11-13 15:43:01,599 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 143 transitions. [2024-11-13 15:43:01,601 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 38 [2024-11-13 15:43:01,606 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 97 states and 122 transitions. [2024-11-13 15:43:01,606 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 62 [2024-11-13 15:43:01,606 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 62 [2024-11-13 15:43:01,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 122 transitions. [2024-11-13 15:43:01,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:43:01,607 INFO L218 hiAutomatonCegarLoop]: Abstraction has 97 states and 122 transitions. [2024-11-13 15:43:01,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states and 122 transitions. [2024-11-13 15:43:01,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 78. [2024-11-13 15:43:01,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 78 states have (on average 1.3076923076923077) internal successors, (102), 77 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:01,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 102 transitions. [2024-11-13 15:43:01,615 INFO L240 hiAutomatonCegarLoop]: Abstraction has 78 states and 102 transitions. [2024-11-13 15:43:01,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-13 15:43:01,619 INFO L424 stractBuchiCegarLoop]: Abstraction has 78 states and 102 transitions. [2024-11-13 15:43:01,619 INFO L331 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-13 15:43:01,619 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states and 102 transitions. [2024-11-13 15:43:01,620 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 33 [2024-11-13 15:43:01,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:43:01,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:43:01,620 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-13 15:43:01,621 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:43:01,621 INFO L745 eck$LassoCheckResult]: Stem: 786#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 787#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 791#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 792#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 793#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 847#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 846#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 845#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 788#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 783#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 784#L20-6 [2024-11-13 15:43:01,621 INFO L747 eck$LassoCheckResult]: Loop: 784#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 796#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 840#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 839#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 838#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 836#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 832#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 784#L20-6 [2024-11-13 15:43:01,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:01,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1709995740, now seen corresponding path program 1 times [2024-11-13 15:43:01,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:43:01,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063606509] [2024-11-13 15:43:01,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:01,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:43:01,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:01,636 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:43:01,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:01,642 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:43:01,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:01,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1118445967, now seen corresponding path program 1 times [2024-11-13 15:43:01,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:43:01,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455862776] [2024-11-13 15:43:01,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:01,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:43:01,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:01,648 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:43:01,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:01,652 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:43:01,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:01,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1912838924, now seen corresponding path program 1 times [2024-11-13 15:43:01,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:43:01,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077408173] [2024-11-13 15:43:01,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:01,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:43:01,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:01,662 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:43:01,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:01,669 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:43:01,751 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:43:01,751 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:43:01,751 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:43:01,751 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:43:01,751 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 15:43:01,751 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:01,751 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:43:01,751 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:43:01,751 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration4_Loop [2024-11-13 15:43:01,751 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:43:01,751 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:43:01,753 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:01,761 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:01,768 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:01,771 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:01,773 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:01,777 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:01,779 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:01,843 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:43:01,843 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 15:43:01,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:01,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:01,847 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:01,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-13 15:43:01,850 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:43:01,850 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:01,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-13 15:43:01,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:01,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:01,887 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:01,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-13 15:43:01,890 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 15:43:01,890 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:01,990 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 15:43:01,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-13 15:43:01,993 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:43:01,993 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:43:01,993 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:43:01,994 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:43:01,994 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:43:01,994 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:01,994 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:43:01,994 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:43:01,994 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration4_Loop [2024-11-13 15:43:01,994 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:43:01,994 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:43:01,995 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:02,002 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:02,010 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:02,018 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:02,020 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:02,022 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:02,027 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:02,092 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:43:02,092 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:43:02,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:02,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:02,094 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:02,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-13 15:43:02,096 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:43:02,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:43:02,107 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:43:02,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:43:02,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:43:02,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:43:02,108 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:43:02,108 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:43:02,109 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:43:02,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-13 15:43:02,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:02,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:02,129 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:02,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-13 15:43:02,131 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:43:02,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:43:02,146 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:43:02,146 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:43:02,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:43:02,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:43:02,147 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:43:02,147 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:43:02,150 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:43:02,153 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-13 15:43:02,153 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-13 15:43:02,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:02,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:02,155 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:02,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-13 15:43:02,158 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:43:02,158 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 15:43:02,158 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:43:02,159 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-13 15:43:02,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-13 15:43:02,177 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 15:43:02,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:02,203 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:43:02,203 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:02,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:43:02,227 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:02,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:43:02,271 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 15:43:02,271 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 78 states and 102 transitions. cyclomatic complexity: 32 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:02,298 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 78 states and 102 transitions. cyclomatic complexity: 32. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 180 states and 242 transitions. Complement of second has 7 states. [2024-11-13 15:43:02,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-13 15:43:02,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:02,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2024-11-13 15:43:02,301 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 10 letters. Loop has 7 letters. [2024-11-13 15:43:02,301 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:02,301 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 17 letters. Loop has 7 letters. [2024-11-13 15:43:02,302 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:02,302 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 10 letters. Loop has 14 letters. [2024-11-13 15:43:02,302 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:02,302 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 242 transitions. [2024-11-13 15:43:02,308 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 33 [2024-11-13 15:43:02,311 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 148 states and 194 transitions. [2024-11-13 15:43:02,311 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 67 [2024-11-13 15:43:02,313 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2024-11-13 15:43:02,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 194 transitions. [2024-11-13 15:43:02,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:43:02,313 INFO L218 hiAutomatonCegarLoop]: Abstraction has 148 states and 194 transitions. [2024-11-13 15:43:02,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 194 transitions. [2024-11-13 15:43:02,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 135. [2024-11-13 15:43:02,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 135 states have (on average 1.3407407407407408) internal successors, (181), 134 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:02,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 181 transitions. [2024-11-13 15:43:02,328 INFO L240 hiAutomatonCegarLoop]: Abstraction has 135 states and 181 transitions. [2024-11-13 15:43:02,328 INFO L424 stractBuchiCegarLoop]: Abstraction has 135 states and 181 transitions. [2024-11-13 15:43:02,328 INFO L331 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-13 15:43:02,328 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states and 181 transitions. [2024-11-13 15:43:02,333 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 33 [2024-11-13 15:43:02,333 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:43:02,333 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:43:02,334 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-13 15:43:02,334 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:43:02,334 INFO L745 eck$LassoCheckResult]: Stem: 1118#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1119#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 1126#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 1154#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 1157#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 1159#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 1158#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 1156#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 1155#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 1152#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 1122#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 1123#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 1183#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 1182#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 1180#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 1181#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 1219#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 1203#L20-6 [2024-11-13 15:43:02,334 INFO L747 eck$LassoCheckResult]: Loop: 1203#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 1213#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 1216#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 1212#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 1210#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 1207#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 1202#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 1203#L20-6 [2024-11-13 15:43:02,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:02,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1372404598, now seen corresponding path program 2 times [2024-11-13 15:43:02,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:43:02,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080001829] [2024-11-13 15:43:02,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:02,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:43:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:02,416 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 15:43:02,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:43:02,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080001829] [2024-11-13 15:43:02,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080001829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:43:02,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:43:02,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:43:02,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419911565] [2024-11-13 15:43:02,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:43:02,417 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-13 15:43:02,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:02,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1118445967, now seen corresponding path program 2 times [2024-11-13 15:43:02,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:43:02,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978905899] [2024-11-13 15:43:02,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:02,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:43:02,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:02,423 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:43:02,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:02,426 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:43:02,506 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:43:02,506 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:43:02,506 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:43:02,506 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:43:02,506 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 15:43:02,506 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:02,506 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:43:02,506 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:43:02,506 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration5_Loop [2024-11-13 15:43:02,506 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:43:02,506 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:43:02,507 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:02,511 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:02,514 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:02,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:02,526 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:02,530 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:02,538 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:02,598 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:43:02,598 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 15:43:02,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:02,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:02,600 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:02,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-13 15:43:02,602 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:43:02,602 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:02,614 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:43:02,614 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite ULTIMATE.start_main_#t~short3#1 1 0)_7=0} Honda state: {v_rep(ite ULTIMATE.start_main_#t~short3#1 1 0)_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:43:02,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-13 15:43:02,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:02,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:02,629 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:02,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-13 15:43:02,630 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:43:02,630 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:02,642 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:43:02,643 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:43:02,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-11-13 15:43:02,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:02,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:02,655 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:02,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-13 15:43:02,657 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:43:02,657 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:02,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-11-13 15:43:02,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:02,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:02,687 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:02,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-13 15:43:02,689 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 15:43:02,689 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:02,784 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 15:43:02,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-11-13 15:43:02,787 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:43:02,787 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:43:02,788 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:43:02,788 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:43:02,788 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:43:02,788 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:02,788 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:43:02,788 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:43:02,788 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration5_Loop [2024-11-13 15:43:02,788 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:43:02,788 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:43:02,789 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:02,794 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:02,797 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:02,800 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:02,803 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:02,811 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:02,818 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:02,881 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:43:02,881 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:43:02,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:02,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:02,885 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:02,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-13 15:43:02,887 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:43:02,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:43:02,902 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:43:02,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:43:02,902 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:43:02,902 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:43:02,903 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:43:02,903 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:43:02,907 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:43:02,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-11-13 15:43:02,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:02,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:02,926 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:02,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-13 15:43:02,928 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:43:02,942 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:43:02,943 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:43:02,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:43:02,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:43:02,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:43:02,943 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:43:02,943 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:43:02,946 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:43:02,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-11-13 15:43:02,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:02,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:02,965 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:02,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-13 15:43:02,967 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:43:02,981 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:43:02,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:43:02,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:43:02,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:43:02,984 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:43:02,984 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:43:02,989 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:43:03,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-11-13 15:43:03,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:03,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:03,008 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:03,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-13 15:43:03,011 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:43:03,025 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:43:03,025 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:43:03,025 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:43:03,025 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:43:03,025 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:43:03,026 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:43:03,027 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:43:03,028 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:43:03,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2024-11-13 15:43:03,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:03,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:03,046 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:03,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-11-13 15:43:03,049 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:43:03,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:43:03,061 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:43:03,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:43:03,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:43:03,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:43:03,063 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:43:03,063 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:43:03,068 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:43:03,072 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 15:43:03,072 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 15:43:03,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:03,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:03,075 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:03,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-13 15:43:03,077 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:43:03,077 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 15:43:03,077 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:43:03,077 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-13 15:43:03,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-11-13 15:43:03,091 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 15:43:03,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:03,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:03,118 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:43:03,119 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:03,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:03,156 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:43:03,157 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:03,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:43:03,205 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 15:43:03,206 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 135 states and 181 transitions. cyclomatic complexity: 60 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:03,234 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 135 states and 181 transitions. cyclomatic complexity: 60. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 203 states and 269 transitions. Complement of second has 7 states. [2024-11-13 15:43:03,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-13 15:43:03,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:03,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2024-11-13 15:43:03,240 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 17 letters. Loop has 7 letters. [2024-11-13 15:43:03,240 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:03,240 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 15:43:03,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:03,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:03,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:43:03,267 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:03,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:03,300 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:43:03,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:03,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:43:03,349 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 15:43:03,349 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 135 states and 181 transitions. cyclomatic complexity: 60 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:03,390 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 135 states and 181 transitions. cyclomatic complexity: 60. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 315 states and 418 transitions. Complement of second has 9 states. [2024-11-13 15:43:03,391 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 [2024-11-13 15:43:03,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:03,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2024-11-13 15:43:03,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 17 letters. Loop has 7 letters. [2024-11-13 15:43:03,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:03,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 24 letters. Loop has 7 letters. [2024-11-13 15:43:03,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:03,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 17 letters. Loop has 14 letters. [2024-11-13 15:43:03,393 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:03,393 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 315 states and 418 transitions. [2024-11-13 15:43:03,397 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 48 [2024-11-13 15:43:03,399 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 315 states to 281 states and 370 transitions. [2024-11-13 15:43:03,399 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 90 [2024-11-13 15:43:03,399 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 92 [2024-11-13 15:43:03,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 281 states and 370 transitions. [2024-11-13 15:43:03,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:43:03,400 INFO L218 hiAutomatonCegarLoop]: Abstraction has 281 states and 370 transitions. [2024-11-13 15:43:03,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states and 370 transitions. [2024-11-13 15:43:03,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 204. [2024-11-13 15:43:03,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 204 states have (on average 1.3676470588235294) internal successors, (279), 203 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:03,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 279 transitions. [2024-11-13 15:43:03,414 INFO L240 hiAutomatonCegarLoop]: Abstraction has 204 states and 279 transitions. [2024-11-13 15:43:03,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:43:03,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:43:03,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:43:03,415 INFO L87 Difference]: Start difference. First operand 204 states and 279 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:03,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:43:03,434 INFO L93 Difference]: Finished difference Result 184 states and 250 transitions. [2024-11-13 15:43:03,434 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 184 states and 250 transitions. [2024-11-13 15:43:03,436 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 43 [2024-11-13 15:43:03,438 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 184 states to 175 states and 241 transitions. [2024-11-13 15:43:03,438 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 61 [2024-11-13 15:43:03,438 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 61 [2024-11-13 15:43:03,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 175 states and 241 transitions. [2024-11-13 15:43:03,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:43:03,438 INFO L218 hiAutomatonCegarLoop]: Abstraction has 175 states and 241 transitions. [2024-11-13 15:43:03,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states and 241 transitions. [2024-11-13 15:43:03,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2024-11-13 15:43:03,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 175 states have (on average 1.3771428571428572) internal successors, (241), 174 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:03,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 241 transitions. [2024-11-13 15:43:03,447 INFO L240 hiAutomatonCegarLoop]: Abstraction has 175 states and 241 transitions. [2024-11-13 15:43:03,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:43:03,453 INFO L424 stractBuchiCegarLoop]: Abstraction has 175 states and 241 transitions. [2024-11-13 15:43:03,453 INFO L331 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-13 15:43:03,453 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 175 states and 241 transitions. [2024-11-13 15:43:03,454 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 43 [2024-11-13 15:43:03,455 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:43:03,455 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:43:03,455 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-13 15:43:03,455 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-13 15:43:03,455 INFO L745 eck$LassoCheckResult]: Stem: 2338#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2339#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 2348#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 2345#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 2346#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2381#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 2380#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 2378#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2372#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 2373#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 2349#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 2350#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 2470#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 2468#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 2467#L20-5 [2024-11-13 15:43:03,455 INFO L747 eck$LassoCheckResult]: Loop: 2467#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2465#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 2461#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 2462#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2473#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 2472#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 2360#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 2361#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 2471#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 2469#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 2467#L20-5 [2024-11-13 15:43:03,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:03,456 INFO L85 PathProgramCache]: Analyzing trace with hash -449746069, now seen corresponding path program 3 times [2024-11-13 15:43:03,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:43:03,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294229063] [2024-11-13 15:43:03,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:03,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:43:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:03,464 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:43:03,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:03,469 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:43:03,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:03,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1722228070, now seen corresponding path program 1 times [2024-11-13 15:43:03,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:43:03,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536653266] [2024-11-13 15:43:03,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:03,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:43:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:03,476 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:43:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:03,480 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:43:03,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:03,481 INFO L85 PathProgramCache]: Analyzing trace with hash -2147431344, now seen corresponding path program 4 times [2024-11-13 15:43:03,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:43:03,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496754718] [2024-11-13 15:43:03,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:03,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:43:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:03,491 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:43:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:03,505 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:43:03,601 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:43:03,601 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:43:03,601 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:43:03,602 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:43:03,602 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 15:43:03,602 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:03,602 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:43:03,602 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:43:03,602 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration6_Loop [2024-11-13 15:43:03,602 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:43:03,602 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:43:03,603 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:03,608 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:03,613 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:03,617 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:03,624 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:03,626 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:03,634 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:03,697 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:43:03,698 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 15:43:03,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:03,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:03,700 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:03,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-11-13 15:43:03,703 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:43:03,703 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:03,728 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:43:03,728 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:43:03,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-11-13 15:43:03,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:03,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:03,750 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:03,754 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:43:03,754 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:03,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-11-13 15:43:03,779 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:43:03,779 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:43:03,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2024-11-13 15:43:03,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:03,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:03,796 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:03,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-11-13 15:43:03,798 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:43:03,798 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:03,810 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:43:03,811 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite ULTIMATE.start_main_#t~short3#1 1 0)_9=0} Honda state: {v_rep(ite ULTIMATE.start_main_#t~short3#1 1 0)_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:43:03,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2024-11-13 15:43:03,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:03,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:03,825 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:03,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-11-13 15:43:03,827 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:43:03,827 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:03,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2024-11-13 15:43:03,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:03,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:03,853 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:03,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-11-13 15:43:03,854 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 15:43:03,854 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:03,949 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 15:43:03,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2024-11-13 15:43:03,952 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:43:03,952 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:43:03,952 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:43:03,953 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:43:03,953 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:43:03,953 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:03,953 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:43:03,953 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:43:03,953 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration6_Loop [2024-11-13 15:43:03,953 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:43:03,953 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:43:03,954 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:03,959 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:03,962 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:03,965 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:03,972 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:03,975 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:03,977 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:04,044 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:43:04,046 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:43:04,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:04,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:04,048 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:04,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-11-13 15:43:04,051 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:43:04,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:43:04,062 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:43:04,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:43:04,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:43:04,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:43:04,063 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:43:04,063 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:43:04,065 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:43:04,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2024-11-13 15:43:04,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:04,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:04,085 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:04,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-11-13 15:43:04,088 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:43:04,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:43:04,102 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:43:04,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:43:04,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:43:04,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:43:04,103 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:43:04,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:43:04,107 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:43:04,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2024-11-13 15:43:04,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:04,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:04,128 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:04,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-11-13 15:43:04,131 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:43:04,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:43:04,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:43:04,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:43:04,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:43:04,147 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:43:04,147 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:43:04,151 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:43:04,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2024-11-13 15:43:04,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:04,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:04,172 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:04,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-11-13 15:43:04,175 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:43:04,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:43:04,189 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:43:04,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:43:04,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:43:04,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:43:04,190 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:43:04,190 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:43:04,193 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:43:04,196 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 15:43:04,196 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 15:43:04,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:04,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:04,198 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:04,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-11-13 15:43:04,199 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:43:04,199 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 15:43:04,199 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:43:04,199 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-13 15:43:04,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2024-11-13 15:43:04,212 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 15:43:04,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:04,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:04,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:43:04,238 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:04,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:43:04,267 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:04,307 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 15:43:04,308 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 15:43:04,308 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 175 states and 241 transitions. cyclomatic complexity: 85 Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:04,333 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 175 states and 241 transitions. cyclomatic complexity: 85. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 440 states and 607 transitions. Complement of second has 6 states. [2024-11-13 15:43:04,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-13 15:43:04,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:04,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2024-11-13 15:43:04,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 14 letters. Loop has 10 letters. [2024-11-13 15:43:04,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:04,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 24 letters. Loop has 10 letters. [2024-11-13 15:43:04,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:04,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 14 letters. Loop has 20 letters. [2024-11-13 15:43:04,336 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:04,336 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 440 states and 607 transitions. [2024-11-13 15:43:04,340 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 21 [2024-11-13 15:43:04,343 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 440 states to 266 states and 367 transitions. [2024-11-13 15:43:04,343 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2024-11-13 15:43:04,343 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2024-11-13 15:43:04,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 266 states and 367 transitions. [2024-11-13 15:43:04,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:43:04,343 INFO L218 hiAutomatonCegarLoop]: Abstraction has 266 states and 367 transitions. [2024-11-13 15:43:04,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states and 367 transitions. [2024-11-13 15:43:04,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 120. [2024-11-13 15:43:04,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 120 states have (on average 1.4) internal successors, (168), 119 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:04,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 168 transitions. [2024-11-13 15:43:04,350 INFO L240 hiAutomatonCegarLoop]: Abstraction has 120 states and 168 transitions. [2024-11-13 15:43:04,350 INFO L424 stractBuchiCegarLoop]: Abstraction has 120 states and 168 transitions. [2024-11-13 15:43:04,350 INFO L331 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-13 15:43:04,350 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 168 transitions. [2024-11-13 15:43:04,351 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2024-11-13 15:43:04,351 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:43:04,351 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:43:04,352 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-13 15:43:04,352 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 15:43:04,352 INFO L745 eck$LassoCheckResult]: Stem: 3050#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3051#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 3055#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 3060#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 3042#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 3043#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 3079#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 3080#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 3072#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 3073#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 3092#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 3093#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 3153#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 3151#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 3047#L20-5 [2024-11-13 15:43:04,352 INFO L747 eck$LassoCheckResult]: Loop: 3047#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 3052#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 3046#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 3047#L20-5 [2024-11-13 15:43:04,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:04,352 INFO L85 PathProgramCache]: Analyzing trace with hash -449746069, now seen corresponding path program 5 times [2024-11-13 15:43:04,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:43:04,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545740785] [2024-11-13 15:43:04,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:04,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:43:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:04,359 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:43:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:04,364 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:43:04,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:04,365 INFO L85 PathProgramCache]: Analyzing trace with hash 46776, now seen corresponding path program 2 times [2024-11-13 15:43:04,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:43:04,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588558374] [2024-11-13 15:43:04,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:04,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:43:04,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:04,368 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:43:04,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:04,370 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:43:04,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:04,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1912838926, now seen corresponding path program 6 times [2024-11-13 15:43:04,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:43:04,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688367776] [2024-11-13 15:43:04,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:04,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:43:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:04,381 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:43:04,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:04,386 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:43:04,428 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:43:04,428 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:43:04,428 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:43:04,428 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:43:04,428 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 15:43:04,428 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:04,428 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:43:04,428 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:43:04,428 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration7_Loop [2024-11-13 15:43:04,428 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:43:04,428 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:43:04,429 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:04,435 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:04,438 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:04,440 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:04,443 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:04,485 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:43:04,485 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 15:43:04,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:04,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:04,487 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:04,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-11-13 15:43:04,490 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:43:04,492 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:04,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2024-11-13 15:43:04,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:04,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:04,532 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:04,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-11-13 15:43:04,536 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 15:43:04,536 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:04,664 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 15:43:04,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2024-11-13 15:43:04,667 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:43:04,667 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:43:04,667 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:43:04,667 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:43:04,667 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:43:04,667 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:04,667 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:43:04,667 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:43:04,667 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration7_Loop [2024-11-13 15:43:04,667 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:43:04,667 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:43:04,668 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:04,673 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:04,675 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:04,679 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:04,682 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:04,717 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:43:04,717 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:43:04,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:04,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:04,719 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:04,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2024-11-13 15:43:04,722 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:43:04,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:43:04,733 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:43:04,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:43:04,734 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:43:04,734 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:43:04,734 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:43:04,734 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:43:04,736 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:43:04,738 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 15:43:04,739 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-13 15:43:04,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:04,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:04,740 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:04,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2024-11-13 15:43:04,742 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:43:04,742 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 15:43:04,742 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:43:04,742 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~m~0#1) = -2*ULTIMATE.start_main_~y~0#1 + 2*ULTIMATE.start_main_~m~0#1 + 1 Supporting invariants [] [2024-11-13 15:43:04,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2024-11-13 15:43:04,755 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 15:43:04,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:04,776 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:43:04,776 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:04,804 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:43:04,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:04,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:43:04,870 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 15:43:04,871 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 120 states and 168 transitions. cyclomatic complexity: 60 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:04,918 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 120 states and 168 transitions. cyclomatic complexity: 60. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 152 states and 205 transitions. Complement of second has 9 states. [2024-11-13 15:43:04,918 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 [2024-11-13 15:43:04,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:04,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2024-11-13 15:43:04,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 14 letters. Loop has 3 letters. [2024-11-13 15:43:04,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:04,920 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 15:43:04,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:04,944 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:43:04,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:04,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:04,969 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:43:04,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:05,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:43:05,031 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 15:43:05,031 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 120 states and 168 transitions. cyclomatic complexity: 60 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:05,070 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 120 states and 168 transitions. cyclomatic complexity: 60. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 152 states and 205 transitions. Complement of second has 9 states. [2024-11-13 15:43:05,070 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 [2024-11-13 15:43:05,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:05,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2024-11-13 15:43:05,071 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 14 letters. Loop has 3 letters. [2024-11-13 15:43:05,071 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:05,071 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 15:43:05,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:05,102 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:43:05,103 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:05,125 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:43:05,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:05,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-11-13 15:43:05,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:43:05,230 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 15:43:05,230 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 120 states and 168 transitions. cyclomatic complexity: 60 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:05,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-11-13 15:43:05,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2024-11-13 15:43:05,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2024-11-13 15:43:05,309 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 120 states and 168 transitions. cyclomatic complexity: 60. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 224 states and 284 transitions. Complement of second has 8 states. [2024-11-13 15:43:05,310 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 [2024-11-13 15:43:05,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:05,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2024-11-13 15:43:05,311 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 14 letters. Loop has 3 letters. [2024-11-13 15:43:05,311 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:05,311 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 17 letters. Loop has 3 letters. [2024-11-13 15:43:05,311 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:05,311 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 14 letters. Loop has 6 letters. [2024-11-13 15:43:05,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:05,312 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 224 states and 284 transitions. [2024-11-13 15:43:05,313 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-13 15:43:05,314 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 224 states to 146 states and 187 transitions. [2024-11-13 15:43:05,315 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-11-13 15:43:05,315 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-13 15:43:05,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 146 states and 187 transitions. [2024-11-13 15:43:05,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:43:05,315 INFO L218 hiAutomatonCegarLoop]: Abstraction has 146 states and 187 transitions. [2024-11-13 15:43:05,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states and 187 transitions. [2024-11-13 15:43:05,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 107. [2024-11-13 15:43:05,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 107 states have (on average 1.3364485981308412) internal successors, (143), 106 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:05,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 143 transitions. [2024-11-13 15:43:05,319 INFO L240 hiAutomatonCegarLoop]: Abstraction has 107 states and 143 transitions. [2024-11-13 15:43:05,319 INFO L424 stractBuchiCegarLoop]: Abstraction has 107 states and 143 transitions. [2024-11-13 15:43:05,320 INFO L331 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-13 15:43:05,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 107 states and 143 transitions. [2024-11-13 15:43:05,320 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-13 15:43:05,320 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:43:05,320 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:43:05,321 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-13 15:43:05,321 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 15:43:05,326 INFO L745 eck$LassoCheckResult]: Stem: 3898#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3899#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 3905#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 3901#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 3892#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 3893#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 3922#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 3923#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 3920#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 3929#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 3928#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 3888#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 3889#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 3891#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 3988#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 3987#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 3985#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 3986#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 3992#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 3991#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 3990#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 3939#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 3909#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 3910#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 3886#L19-2 [2024-11-13 15:43:05,326 INFO L747 eck$LassoCheckResult]: Loop: 3886#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 3887#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 3890#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 3886#L19-2 [2024-11-13 15:43:05,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:05,326 INFO L85 PathProgramCache]: Analyzing trace with hash -2147431323, now seen corresponding path program 1 times [2024-11-13 15:43:05,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:43:05,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964017723] [2024-11-13 15:43:05,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:05,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:43:05,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:05,338 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:43:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:05,352 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:43:05,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:05,353 INFO L85 PathProgramCache]: Analyzing trace with hash 64731, now seen corresponding path program 2 times [2024-11-13 15:43:05,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:43:05,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705601987] [2024-11-13 15:43:05,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:05,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:43:05,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:05,357 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:43:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:05,358 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:43:05,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:05,359 INFO L85 PathProgramCache]: Analyzing trace with hash -588634633, now seen corresponding path program 2 times [2024-11-13 15:43:05,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:43:05,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622561634] [2024-11-13 15:43:05,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:05,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:43:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:05,445 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 15:43:05,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:43:05,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622561634] [2024-11-13 15:43:05,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622561634] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:43:05,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404109914] [2024-11-13 15:43:05,445 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:43:05,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:43:05,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:05,447 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:43:05,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-11-13 15:43:05,493 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 15:43:05,493 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:43:05,494 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 15:43:05,495 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:05,539 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 15:43:05,540 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:43:05,602 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 15:43:05,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404109914] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:43:05,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:43:05,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-11-13 15:43:05,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201519640] [2024-11-13 15:43:05,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:43:05,626 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:43:05,627 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:43:05,627 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:43:05,627 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:43:05,627 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 15:43:05,627 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:05,627 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:43:05,627 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:43:05,627 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration8_Loop [2024-11-13 15:43:05,627 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:43:05,627 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:43:05,628 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:05,632 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:05,635 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:05,641 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:05,645 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:05,687 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:43:05,687 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 15:43:05,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:05,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:05,690 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:05,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2024-11-13 15:43:05,692 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:43:05,692 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:05,717 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:43:05,717 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:43:05,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2024-11-13 15:43:05,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:05,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:05,737 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:05,739 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:43:05,739 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:05,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2024-11-13 15:43:05,764 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:43:05,764 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:43:05,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2024-11-13 15:43:05,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:05,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:05,783 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:05,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2024-11-13 15:43:05,786 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:43:05,786 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:05,801 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:43:05,802 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:43:05,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2024-11-13 15:43:05,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:05,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:05,821 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:05,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2024-11-13 15:43:05,822 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:43:05,822 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:05,841 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:43:05,841 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_15=0} Honda state: {v_rep~unnamed0~0~false_15=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:43:05,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2024-11-13 15:43:05,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:05,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:05,854 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:05,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2024-11-13 15:43:05,856 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:43:05,856 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:05,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2024-11-13 15:43:05,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:05,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:05,887 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:05,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2024-11-13 15:43:05,889 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 15:43:05,889 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:05,959 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 15:43:05,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2024-11-13 15:43:05,962 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:43:05,962 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:43:05,962 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:43:05,962 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:43:05,962 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:43:05,962 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:05,962 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:43:05,962 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:43:05,962 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration8_Loop [2024-11-13 15:43:05,962 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:43:05,963 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:43:05,963 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:05,966 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:05,969 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:05,971 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:05,976 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:06,017 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:43:06,017 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:43:06,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:06,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:06,019 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:06,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2024-11-13 15:43:06,023 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:43:06,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:43:06,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:43:06,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:43:06,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:43:06,038 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:43:06,039 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:43:06,043 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:43:06,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2024-11-13 15:43:06,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:06,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:06,063 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:06,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2024-11-13 15:43:06,066 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:43:06,081 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:43:06,081 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:43:06,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:43:06,082 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:43:06,082 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:43:06,083 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:43:06,083 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:43:06,084 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:43:06,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2024-11-13 15:43:06,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:06,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:06,104 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:06,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2024-11-13 15:43:06,107 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:43:06,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:43:06,118 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:43:06,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:43:06,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:43:06,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:43:06,118 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:43:06,118 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:43:06,120 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:43:06,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2024-11-13 15:43:06,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:06,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:06,132 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:06,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2024-11-13 15:43:06,134 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:43:06,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:43:06,145 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:43:06,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:43:06,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:43:06,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:43:06,145 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:43:06,145 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:43:06,148 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:43:06,149 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-13 15:43:06,149 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-13 15:43:06,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:06,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:06,151 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:06,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2024-11-13 15:43:06,152 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:43:06,152 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 15:43:06,152 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:43:06,152 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-13 15:43:06,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2024-11-13 15:43:06,165 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 15:43:06,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:06,192 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:43:06,193 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:06,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:06,228 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:43:06,228 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:06,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:43:06,246 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 15:43:06,247 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 107 states and 143 transitions. cyclomatic complexity: 46 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:06,271 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 107 states and 143 transitions. cyclomatic complexity: 46. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 335 states and 456 transitions. Complement of second has 7 states. [2024-11-13 15:43:06,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-13 15:43:06,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:06,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2024-11-13 15:43:06,273 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 24 letters. Loop has 3 letters. [2024-11-13 15:43:06,273 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:06,273 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 27 letters. Loop has 3 letters. [2024-11-13 15:43:06,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:06,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 24 letters. Loop has 6 letters. [2024-11-13 15:43:06,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:06,274 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 335 states and 456 transitions. [2024-11-13 15:43:06,277 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-13 15:43:06,278 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 335 states to 266 states and 350 transitions. [2024-11-13 15:43:06,279 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-11-13 15:43:06,279 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-13 15:43:06,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 266 states and 350 transitions. [2024-11-13 15:43:06,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:43:06,279 INFO L218 hiAutomatonCegarLoop]: Abstraction has 266 states and 350 transitions. [2024-11-13 15:43:06,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states and 350 transitions. [2024-11-13 15:43:06,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 204. [2024-11-13 15:43:06,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 204 states have (on average 1.3284313725490196) internal successors, (271), 203 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:06,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 271 transitions. [2024-11-13 15:43:06,284 INFO L240 hiAutomatonCegarLoop]: Abstraction has 204 states and 271 transitions. [2024-11-13 15:43:06,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:43:06,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:43:06,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:43:06,285 INFO L87 Difference]: Start difference. First operand 204 states and 271 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:06,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:43:06,306 INFO L93 Difference]: Finished difference Result 187 states and 240 transitions. [2024-11-13 15:43:06,306 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 187 states and 240 transitions. [2024-11-13 15:43:06,307 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-13 15:43:06,308 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 187 states to 156 states and 206 transitions. [2024-11-13 15:43:06,308 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-11-13 15:43:06,308 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-13 15:43:06,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 156 states and 206 transitions. [2024-11-13 15:43:06,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:43:06,309 INFO L218 hiAutomatonCegarLoop]: Abstraction has 156 states and 206 transitions. [2024-11-13 15:43:06,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states and 206 transitions. [2024-11-13 15:43:06,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 149. [2024-11-13 15:43:06,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 149 states have (on average 1.3355704697986577) internal successors, (199), 148 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:06,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 199 transitions. [2024-11-13 15:43:06,312 INFO L240 hiAutomatonCegarLoop]: Abstraction has 149 states and 199 transitions. [2024-11-13 15:43:06,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:43:06,313 INFO L424 stractBuchiCegarLoop]: Abstraction has 149 states and 199 transitions. [2024-11-13 15:43:06,313 INFO L331 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-11-13 15:43:06,313 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 149 states and 199 transitions. [2024-11-13 15:43:06,314 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-13 15:43:06,314 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:43:06,314 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:43:06,315 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1] [2024-11-13 15:43:06,315 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 15:43:06,316 INFO L745 eck$LassoCheckResult]: Stem: 4995#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 4996#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 5002#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 4999#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 4989#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 4990#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 5060#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 5059#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 4997#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 4998#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 5125#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 4992#L20-1 assume !main_#t~short3#1; 4993#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 4994#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 5106#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 5105#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 5103#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 5005#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 5115#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 5113#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 5006#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 5111#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 5064#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 5065#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 5017#L20-1 assume !main_#t~short3#1; 5013#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 5014#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 5009#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 5010#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 5004#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 4983#L19-2 [2024-11-13 15:43:06,316 INFO L747 eck$LassoCheckResult]: Loop: 4983#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 4984#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 4987#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 4983#L19-2 [2024-11-13 15:43:06,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:06,316 INFO L85 PathProgramCache]: Analyzing trace with hash 499811572, now seen corresponding path program 1 times [2024-11-13 15:43:06,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:43:06,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982590906] [2024-11-13 15:43:06,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:06,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:43:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:06,481 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 39 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 15:43:06,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:43:06,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982590906] [2024-11-13 15:43:06,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982590906] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:43:06,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822445087] [2024-11-13 15:43:06,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:06,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:43:06,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:06,485 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:43:06,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2024-11-13 15:43:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:06,533 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 15:43:06,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:06,604 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 38 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 15:43:06,604 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:43:06,660 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 39 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 15:43:06,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822445087] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:43:06,660 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:43:06,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 8 [2024-11-13 15:43:06,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032246787] [2024-11-13 15:43:06,661 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:43:06,661 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-13 15:43:06,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:06,662 INFO L85 PathProgramCache]: Analyzing trace with hash 64731, now seen corresponding path program 3 times [2024-11-13 15:43:06,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:43:06,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348325211] [2024-11-13 15:43:06,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:06,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:43:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:06,665 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:43:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:06,666 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:43:06,687 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:43:06,687 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:43:06,687 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:43:06,687 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:43:06,687 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 15:43:06,687 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:06,687 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:43:06,687 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:43:06,687 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration9_Loop [2024-11-13 15:43:06,687 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:43:06,688 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:43:06,688 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:06,691 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:06,694 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:06,701 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:06,704 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:06,748 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:43:06,748 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 15:43:06,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:06,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:06,751 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:06,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2024-11-13 15:43:06,754 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:43:06,754 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:06,778 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:43:06,778 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_17=1} Honda state: {v_rep~unnamed0~0~true_17=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:43:06,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2024-11-13 15:43:06,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:06,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:06,798 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:06,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2024-11-13 15:43:06,800 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:43:06,800 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:06,824 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:43:06,824 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 15:43:06,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2024-11-13 15:43:06,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:06,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:06,844 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:06,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2024-11-13 15:43:06,847 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:43:06,847 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:06,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2024-11-13 15:43:06,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:06,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:06,872 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:06,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2024-11-13 15:43:06,873 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 15:43:06,873 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:06,945 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 15:43:06,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2024-11-13 15:43:06,948 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:43:06,948 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:43:06,948 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:43:06,948 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:43:06,948 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:43:06,948 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:06,948 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:43:06,948 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:43:06,948 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration9_Loop [2024-11-13 15:43:06,948 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:43:06,948 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:43:06,949 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:06,951 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:06,953 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:06,955 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:06,959 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:06,991 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:43:06,991 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:43:06,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:06,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:06,993 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:06,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2024-11-13 15:43:06,994 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:43:07,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:43:07,005 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:43:07,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:43:07,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:43:07,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:43:07,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:43:07,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:43:07,008 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:43:07,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2024-11-13 15:43:07,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:07,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:07,021 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:07,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2024-11-13 15:43:07,023 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:43:07,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:43:07,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:43:07,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:43:07,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:43:07,036 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:43:07,036 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:43:07,041 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:43:07,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2024-11-13 15:43:07,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:07,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:07,061 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:07,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2024-11-13 15:43:07,063 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 [2024-11-13 15:43:07,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:43:07,077 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:43:07,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:43:07,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:43:07,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:43:07,078 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:43:07,078 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:43:07,080 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:43:07,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2024-11-13 15:43:07,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:07,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:07,100 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:07,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2024-11-13 15:43:07,102 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:43:07,116 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:43:07,116 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:43:07,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:43:07,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:43:07,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:43:07,117 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:43:07,117 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:43:07,119 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:43:07,120 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-13 15:43:07,120 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-13 15:43:07,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:07,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:07,122 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:07,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2024-11-13 15:43:07,123 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:43:07,123 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 15:43:07,123 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:43:07,123 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-13 15:43:07,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2024-11-13 15:43:07,136 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 15:43:07,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:07,164 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:43:07,165 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:07,212 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:43:07,213 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:07,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:43:07,230 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 15:43:07,230 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 149 states and 199 transitions. cyclomatic complexity: 65 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:07,261 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 149 states and 199 transitions. cyclomatic complexity: 65. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 197 states and 258 transitions. Complement of second has 7 states. [2024-11-13 15:43:07,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-13 15:43:07,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:07,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2024-11-13 15:43:07,262 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 30 letters. Loop has 3 letters. [2024-11-13 15:43:07,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:07,262 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 15:43:07,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:07,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:07,288 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:43:07,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:07,334 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:43:07,334 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:07,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:43:07,362 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 15:43:07,362 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 149 states and 199 transitions. cyclomatic complexity: 65 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:07,398 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 149 states and 199 transitions. cyclomatic complexity: 65. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 271 states and 353 transitions. Complement of second has 9 states. [2024-11-13 15:43:07,399 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 [2024-11-13 15:43:07,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:07,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2024-11-13 15:43:07,400 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 30 letters. Loop has 3 letters. [2024-11-13 15:43:07,400 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:07,400 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 33 letters. Loop has 3 letters. [2024-11-13 15:43:07,400 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:07,400 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 30 letters. Loop has 6 letters. [2024-11-13 15:43:07,401 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:07,401 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 271 states and 353 transitions. [2024-11-13 15:43:07,403 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-13 15:43:07,404 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 271 states to 263 states and 339 transitions. [2024-11-13 15:43:07,404 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-11-13 15:43:07,405 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-13 15:43:07,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 263 states and 339 transitions. [2024-11-13 15:43:07,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:43:07,405 INFO L218 hiAutomatonCegarLoop]: Abstraction has 263 states and 339 transitions. [2024-11-13 15:43:07,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states and 339 transitions. [2024-11-13 15:43:07,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 227. [2024-11-13 15:43:07,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 227 states have (on average 1.3127753303964758) internal successors, (298), 226 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:07,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 298 transitions. [2024-11-13 15:43:07,412 INFO L240 hiAutomatonCegarLoop]: Abstraction has 227 states and 298 transitions. [2024-11-13 15:43:07,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:43:07,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:43:07,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:43:07,413 INFO L87 Difference]: Start difference. First operand 227 states and 298 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:07,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:43:07,494 INFO L93 Difference]: Finished difference Result 328 states and 406 transitions. [2024-11-13 15:43:07,494 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 328 states and 406 transitions. [2024-11-13 15:43:07,496 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-13 15:43:07,497 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 328 states to 328 states and 406 transitions. [2024-11-13 15:43:07,498 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-11-13 15:43:07,498 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-11-13 15:43:07,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 328 states and 406 transitions. [2024-11-13 15:43:07,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:43:07,498 INFO L218 hiAutomatonCegarLoop]: Abstraction has 328 states and 406 transitions. [2024-11-13 15:43:07,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states and 406 transitions. [2024-11-13 15:43:07,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 226. [2024-11-13 15:43:07,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 226 states have (on average 1.2654867256637168) internal successors, (286), 225 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:07,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 286 transitions. [2024-11-13 15:43:07,505 INFO L240 hiAutomatonCegarLoop]: Abstraction has 226 states and 286 transitions. [2024-11-13 15:43:07,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 15:43:07,508 INFO L424 stractBuchiCegarLoop]: Abstraction has 226 states and 286 transitions. [2024-11-13 15:43:07,508 INFO L331 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2024-11-13 15:43:07,509 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 226 states and 286 transitions. [2024-11-13 15:43:07,510 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-13 15:43:07,510 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:43:07,510 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:43:07,511 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 6, 4, 4, 3, 2, 2, 2, 2, 1, 1] [2024-11-13 15:43:07,511 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 15:43:07,511 INFO L745 eck$LassoCheckResult]: Stem: 6589#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 6590#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 6578#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 6579#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 6582#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 6583#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 6707#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 6708#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 6760#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 6761#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 6759#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 6757#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 6758#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 6735#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 6659#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 6656#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 6651#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 6652#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 6644#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 6623#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 6624#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 6666#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 6665#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 6663#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 6608#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 6609#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 6607#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 6605#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 6603#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 6602#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 6601#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 6599#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 6600#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 6574#L19-2 [2024-11-13 15:43:07,511 INFO L747 eck$LassoCheckResult]: Loop: 6574#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 6575#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 6591#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 6574#L19-2 [2024-11-13 15:43:07,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:07,513 INFO L85 PathProgramCache]: Analyzing trace with hash 950665753, now seen corresponding path program 3 times [2024-11-13 15:43:07,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:43:07,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144857560] [2024-11-13 15:43:07,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:07,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:43:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:07,525 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:43:07,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:07,537 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:43:07,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:07,540 INFO L85 PathProgramCache]: Analyzing trace with hash 64731, now seen corresponding path program 4 times [2024-11-13 15:43:07,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:43:07,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20846150] [2024-11-13 15:43:07,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:07,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:43:07,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:07,543 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:43:07,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:07,546 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:43:07,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:07,546 INFO L85 PathProgramCache]: Analyzing trace with hash 269132739, now seen corresponding path program 4 times [2024-11-13 15:43:07,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:43:07,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141840628] [2024-11-13 15:43:07,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:07,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:43:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:07,557 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:43:07,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:43:07,569 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:43:07,592 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:43:07,592 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:43:07,592 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:43:07,592 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:43:07,592 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 15:43:07,592 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:07,592 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:43:07,592 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:43:07,593 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration10_Loop [2024-11-13 15:43:07,593 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:43:07,593 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:43:07,593 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:07,599 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:07,602 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:07,604 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:07,607 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:07,641 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:43:07,641 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 15:43:07,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:07,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:07,643 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:07,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2024-11-13 15:43:07,644 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:43:07,644 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:07,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Ended with exit code 0 [2024-11-13 15:43:07,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:07,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:07,671 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:07,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2024-11-13 15:43:07,672 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 15:43:07,673 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:43:07,748 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 15:43:07,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2024-11-13 15:43:07,751 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:43:07,751 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:43:07,751 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:43:07,751 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:43:07,751 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:43:07,751 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:07,751 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:43:07,751 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:43:07,751 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration10_Loop [2024-11-13 15:43:07,752 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:43:07,752 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:43:07,753 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:07,758 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:07,760 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:07,763 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:07,765 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:43:07,803 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:43:07,803 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:43:07,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:07,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:07,805 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:07,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2024-11-13 15:43:07,807 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:43:07,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:43:07,817 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:43:07,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:43:07,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:43:07,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:43:07,818 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:43:07,818 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:43:07,820 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:43:07,823 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 15:43:07,824 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 15:43:07,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:43:07,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:07,826 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:43:07,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2024-11-13 15:43:07,828 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:43:07,828 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 15:43:07,828 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:43:07,829 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-13 15:43:07,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2024-11-13 15:43:07,843 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 15:43:07,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:07,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:43:07,873 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:07,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:07,921 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:43:07,921 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:07,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:43:07,945 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 15:43:07,945 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 226 states and 286 transitions. cyclomatic complexity: 80 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:07,968 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 226 states and 286 transitions. cyclomatic complexity: 80. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 299 states and 376 transitions. Complement of second has 7 states. [2024-11-13 15:43:07,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-13 15:43:07,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:07,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2024-11-13 15:43:07,969 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 33 letters. Loop has 3 letters. [2024-11-13 15:43:07,969 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:07,970 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 15:43:07,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:08,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:08,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:43:08,002 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:08,051 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:43:08,051 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:08,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:43:08,071 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 15:43:08,072 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 226 states and 286 transitions. cyclomatic complexity: 80 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:08,101 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 226 states and 286 transitions. cyclomatic complexity: 80. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 352 states and 435 transitions. Complement of second has 9 states. [2024-11-13 15:43:08,102 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 [2024-11-13 15:43:08,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:08,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2024-11-13 15:43:08,102 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 33 letters. Loop has 3 letters. [2024-11-13 15:43:08,103 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:08,103 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 15:43:08,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:08,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:08,133 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:43:08,134 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:08,175 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:43:08,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:08,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:43:08,192 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 15:43:08,193 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 226 states and 286 transitions. cyclomatic complexity: 80 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:08,212 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 226 states and 286 transitions. cyclomatic complexity: 80. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 380 states and 487 transitions. Complement of second has 8 states. [2024-11-13 15:43:08,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-13 15:43:08,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:43:08,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2024-11-13 15:43:08,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 33 letters. Loop has 3 letters. [2024-11-13 15:43:08,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:08,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 36 letters. Loop has 3 letters. [2024-11-13 15:43:08,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:08,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 33 letters. Loop has 6 letters. [2024-11-13 15:43:08,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:43:08,214 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 380 states and 487 transitions. [2024-11-13 15:43:08,217 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-13 15:43:08,217 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 380 states to 0 states and 0 transitions. [2024-11-13 15:43:08,217 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-13 15:43:08,217 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-13 15:43:08,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-13 15:43:08,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 15:43:08,217 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 15:43:08,218 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 15:43:08,218 INFO L424 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 15:43:08,218 INFO L331 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2024-11-13 15:43:08,218 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-13 15:43:08,218 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-13 15:43:08,218 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-13 15:43:08,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 03:43:08 BoogieIcfgContainer [2024-11-13 15:43:08,226 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-13 15:43:08,227 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:43:08,227 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:43:08,227 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:43:08,228 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:42:57" (3/4) ... [2024-11-13 15:43:08,230 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 15:43:08,231 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:43:08,232 INFO L158 Benchmark]: Toolchain (without parser) took 11263.53ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 120.0MB in the beginning and 135.4MB in the end (delta: -15.5MB). Peak memory consumption was 196.6MB. Max. memory is 16.1GB. [2024-11-13 15:43:08,232 INFO L158 Benchmark]: CDTParser took 0.87ms. Allocated memory is still 142.6MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:43:08,232 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.33ms. Allocated memory was 142.6MB in the beginning and 117.4MB in the end (delta: -25.2MB). Free memory was 120.0MB in the beginning and 84.9MB in the end (delta: 35.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:43:08,232 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.51ms. Allocated memory is still 117.4MB. Free memory was 84.9MB in the beginning and 83.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:43:08,233 INFO L158 Benchmark]: Boogie Preprocessor took 25.41ms. Allocated memory is still 117.4MB. Free memory was 83.9MB in the beginning and 83.0MB in the end (delta: 929.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:43:08,233 INFO L158 Benchmark]: RCFGBuilder took 201.81ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 73.9MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:43:08,233 INFO L158 Benchmark]: BuchiAutomizer took 10755.50ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 73.9MB in the beginning and 135.5MB in the end (delta: -61.6MB). Peak memory consumption was 171.4MB. Max. memory is 16.1GB. [2024-11-13 15:43:08,234 INFO L158 Benchmark]: Witness Printer took 3.87ms. Allocated memory is still 352.3MB. Free memory was 135.5MB in the beginning and 135.4MB in the end (delta: 72.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:43:08,235 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87ms. Allocated memory is still 142.6MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 234.33ms. Allocated memory was 142.6MB in the beginning and 117.4MB in the end (delta: -25.2MB). Free memory was 120.0MB in the beginning and 84.9MB in the end (delta: 35.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.51ms. Allocated memory is still 117.4MB. Free memory was 84.9MB in the beginning and 83.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.41ms. Allocated memory is still 117.4MB. Free memory was 83.9MB in the beginning and 83.0MB in the end (delta: 929.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 201.81ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 73.9MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 10755.50ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 73.9MB in the beginning and 135.5MB in the end (delta: -61.6MB). Peak memory consumption was 171.4MB. Max. memory is 16.1GB. * Witness Printer took 3.87ms. Allocated memory is still 352.3MB. Free memory was 135.5MB in the beginning and 135.4MB 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.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 15 terminating modules (5 trivial, 8 deterministic, 2 nondeterministic). One deterministic module has affine ranking function (((long) 2 * y) + 1) and consists of 4 locations. One deterministic module has affine ranking function ((((long) 2 * m) + ((long) -2 * y)) + 1) and consists of 6 locations. One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 5 locations. One nondeterministic module has affine ranking function ((((long) 2 * m) + ((long) -2 * y)) + 1) and consists of 5 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. 5 modules have a trivial ranking function, the largest among these consists of 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.6s and 11 iterations. TraceHistogramMax:6. Analysis of lassos took 7.3s. Construction of modules took 0.4s. Büchi inclusion checks took 2.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 14. Automata minimization 0.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 520 StatesRemovedByMinimization, 12 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 [6, 2, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 3/3 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 420 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 404 mSDsluCounter, 523 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 243 mSDsCounter, 97 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 412 IncrementalHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 97 mSolverCounterUnsat, 280 mSDtfsCounter, 412 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT2 SILN0 SILU0 SILI0 SILT3 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax182 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf94 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 36ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 17 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 10 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.7s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-13 15:43:08,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Ended with exit code 0 [2024-11-13 15:43:08,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2024-11-13 15:43:08,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2024-11-13 15:43:08,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2024-11-13 15:43:09,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2024-11-13 15:43:09,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-13 15:43:09,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daeb0a9c-b299-4503-8baa-53a61e1127ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE