./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4cf25ea48272ba4463d41281066a1cec5687f4083cfa8522d5a9622c6308689c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:16:17,301 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:16:17,422 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-27 20:16:17,433 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:16:17,434 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:16:17,461 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:16:17,461 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:16:17,462 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:16:17,462 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:16:17,462 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:16:17,462 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:16:17,463 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:16:17,463 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:16:17,463 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-27 20:16:17,463 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-27 20:16:17,463 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-27 20:16:17,463 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-27 20:16:17,463 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-27 20:16:17,464 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-27 20:16:17,464 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:16:17,464 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-27 20:16:17,464 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:16:17,464 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:16:17,464 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-27 20:16:17,464 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-27 20:16:17,464 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-27 20:16:17,464 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:16:17,465 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:16:17,465 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-27 20:16:17,465 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:16:17,465 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:16:17,465 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:16:17,465 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:16:17,465 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:16:17,466 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-27 20:16:17,466 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-27 20:16:17,466 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_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4cf25ea48272ba4463d41281066a1cec5687f4083cfa8522d5a9622c6308689c [2024-11-27 20:16:17,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:16:17,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:16:17,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:16:17,899 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:16:17,900 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:16:17,901 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c [2024-11-27 20:16:21,467 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/data/2f9137524/a33b66b1a5d74980a1c459dc0d4ae6b5/FLAG2753aa128 [2024-11-27 20:16:21,743 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:16:21,744 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c [2024-11-27 20:16:21,753 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/data/2f9137524/a33b66b1a5d74980a1c459dc0d4ae6b5/FLAG2753aa128 [2024-11-27 20:16:21,772 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/data/2f9137524/a33b66b1a5d74980a1c459dc0d4ae6b5 [2024-11-27 20:16:21,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:16:21,777 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:16:21,779 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:16:21,779 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:16:21,785 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:16:21,786 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:16:21" (1/1) ... [2024-11-27 20:16:21,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@113edea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:16:21, skipping insertion in model container [2024-11-27 20:16:21,787 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:16:21" (1/1) ... [2024-11-27 20:16:21,804 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:16:21,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:16:21,974 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:16:21,993 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:16:22,010 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:16:22,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:16:22 WrapperNode [2024-11-27 20:16:22,011 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:16:22,012 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:16:22,012 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:16:22,012 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:16:22,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:16:22" (1/1) ... [2024-11-27 20:16:22,026 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:16:22" (1/1) ... [2024-11-27 20:16:22,044 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2024-11-27 20:16:22,047 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:16:22,047 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:16:22,048 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:16:22,048 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:16:22,058 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:16:22" (1/1) ... [2024-11-27 20:16:22,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:16:22" (1/1) ... [2024-11-27 20:16:22,060 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:16:22" (1/1) ... [2024-11-27 20:16:22,067 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-27 20:16:22,067 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:16:22" (1/1) ... [2024-11-27 20:16:22,068 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:16:22" (1/1) ... [2024-11-27 20:16:22,069 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:16:22" (1/1) ... [2024-11-27 20:16:22,072 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:16:22" (1/1) ... [2024-11-27 20:16:22,078 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:16:22" (1/1) ... [2024-11-27 20:16:22,079 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:16:22" (1/1) ... [2024-11-27 20:16:22,080 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:16:22" (1/1) ... [2024-11-27 20:16:22,082 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:16:22,084 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:16:22,084 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:16:22,084 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:16:22,086 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:16:22" (1/1) ... [2024-11-27 20:16:22,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:22,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:22,139 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:22,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-27 20:16:22,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:16:22,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:16:22,280 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:16:22,282 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:16:22,373 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-27 20:16:22,373 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:16:22,385 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:16:22,385 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:16:22,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:16:22 BoogieIcfgContainer [2024-11-27 20:16:22,386 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:16:22,387 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-27 20:16:22,387 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-27 20:16:22,394 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-27 20:16:22,395 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:16:22,395 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.11 08:16:21" (1/3) ... [2024-11-27 20:16:22,396 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57b7abb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 08:16:22, skipping insertion in model container [2024-11-27 20:16:22,396 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:16:22,396 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:16:22" (2/3) ... [2024-11-27 20:16:22,397 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57b7abb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 08:16:22, skipping insertion in model container [2024-11-27 20:16:22,397 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:16:22,397 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:16:22" (3/3) ... [2024-11-27 20:16:22,398 INFO L363 chiAutomizerObserver]: Analyzing ICFG PodelskiRybalchenko-LICS2004-Fig1.c [2024-11-27 20:16:22,464 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-27 20:16:22,464 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-27 20:16:22,464 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-27 20:16:22,465 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-27 20:16:22,465 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-27 20:16:22,465 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-27 20:16:22,465 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-27 20:16:22,465 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-27 20:16:22,472 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:16:22,496 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-27 20:16:22,498 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:16:22,498 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:16:22,503 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 20:16:22,503 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-27 20:16:22,503 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-27 20:16:22,504 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:16:22,505 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-27 20:16:22,505 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:16:22,505 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:16:22,506 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 20:16:22,506 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-27 20:16:22,513 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" [2024-11-27 20:16:22,513 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 >= 0 && main_~x~0#1 <= 1073741823;" "main_~y~0#1 := 1;" "assume !(main_~y~0#1 < main_~x~0#1);" "main_~x~0#1 := main_~x~0#1 - 1;" [2024-11-27 20:16:22,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:16:22,520 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-27 20:16:22,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:16:22,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817043656] [2024-11-27 20:16:22,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:16:22,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:16:22,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:16:22,620 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:16:22,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:16:22,639 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:16:22,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:16:22,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1174027, now seen corresponding path program 1 times [2024-11-27 20:16:22,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:16:22,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346116697] [2024-11-27 20:16:22,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:16:22,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:16:22,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:16:22,658 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:16:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:16:22,666 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:16:22,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:16:22,668 INFO L85 PathProgramCache]: Analyzing trace with hash 889601229, now seen corresponding path program 1 times [2024-11-27 20:16:22,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:16:22,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986223878] [2024-11-27 20:16:22,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:16:22,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:16:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:16:22,678 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:16:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:16:22,686 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:16:22,876 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:16:22,877 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:16:22,877 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:16:22,878 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:16:22,878 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 20:16:22,878 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:22,878 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:16:22,878 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:16:22,879 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-LICS2004-Fig1.c_Iteration1_Loop [2024-11-27 20:16:22,879 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:16:22,879 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:16:22,903 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:22,924 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:22,937 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:22,944 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:23,083 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:16:23,084 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 20:16:23,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:23,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:23,091 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:23,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-27 20:16:23,097 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:16:23,097 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:16:23,135 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:16:23,135 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: [] [2024-11-27 20:16:23,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-27 20:16:23,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:23,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:23,153 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:23,156 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:16:23,156 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:16:23,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-27 20:16:23,191 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:16:23,191 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: [] [2024-11-27 20:16:23,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-27 20:16:23,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:23,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:23,209 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:23,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-27 20:16:23,215 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:16:23,215 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:16:23,232 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:16:23,232 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=0} Honda state: {ULTIMATE.start_main_~y~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:16:23,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-27 20:16:23,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:23,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:23,247 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:23,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-27 20:16:23,250 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:16:23,250 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:16:23,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-27 20:16:23,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:23,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:23,281 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:23,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-27 20:16:23,287 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 20:16:23,287 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:16:23,324 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 20:16:23,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-27 20:16:23,337 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:16:23,337 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:16:23,337 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:16:23,337 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:16:23,337 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 20:16:23,337 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:23,337 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:16:23,337 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:16:23,337 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-LICS2004-Fig1.c_Iteration1_Loop [2024-11-27 20:16:23,337 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:16:23,337 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:16:23,340 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:23,356 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:23,364 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:23,371 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:23,514 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:16:23,521 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 20:16:23,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:23,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:23,525 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:23,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-27 20:16:23,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 20:16:23,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:16:23,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:16:23,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:16:23,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:16:23,567 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-27 20:16:23,567 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-27 20:16:23,577 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:16:23,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-27 20:16:23,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:23,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:23,600 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:23,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-27 20:16:23,605 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 20:16:23,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:16:23,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:16:23,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:16:23,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:16:23,627 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-27 20:16:23,628 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-27 20:16:23,636 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:16:23,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-27 20:16:23,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:23,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:23,656 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:23,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-27 20:16:23,667 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 20:16:23,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:16:23,686 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:16:23,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:16:23,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:16:23,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:16:23,688 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:16:23,688 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:16:23,691 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:16:23,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-27 20:16:23,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:23,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:23,708 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:23,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-27 20:16:23,713 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 20:16:23,734 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:16:23,735 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:16:23,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:16:23,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:16:23,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:16:23,739 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:16:23,740 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:16:23,746 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 20:16:23,753 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-27 20:16:23,758 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-27 20:16:23,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:23,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:23,763 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:23,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-27 20:16:23,770 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 20:16:23,770 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-27 20:16:23,770 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 20:16:23,771 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2024-11-27 20:16:23,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-27 20:16:23,790 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-27 20:16:23,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:16:23,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:16:23,849 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:16:23,850 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:16:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:16:23,868 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:16:23,869 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:16:23,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-27 20:16:23,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:16:24,014 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-27 20:16:24,018 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:16:24,098 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 25 states and 35 transitions. Complement of second has 6 states. [2024-11-27 20:16:24,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-27 20:16:24,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:16:24,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2024-11-27 20:16:24,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-27 20:16:24,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:16:24,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 6 letters. Loop has 4 letters. [2024-11-27 20:16:24,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:16:24,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 2 letters. Loop has 8 letters. [2024-11-27 20:16:24,121 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:16:24,122 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 35 transitions. [2024-11-27 20:16:24,124 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-27 20:16:24,129 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 11 states and 14 transitions. [2024-11-27 20:16:24,131 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-11-27 20:16:24,132 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-11-27 20:16:24,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2024-11-27 20:16:24,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:16:24,133 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-11-27 20:16:24,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2024-11-27 20:16:24,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-11-27 20:16:24,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:16:24,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2024-11-27 20:16:24,170 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-11-27 20:16:24,170 INFO L425 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-11-27 20:16:24,170 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-27 20:16:24,170 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2024-11-27 20:16:24,171 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-27 20:16:24,171 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:16:24,171 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:16:24,171 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-27 20:16:24,171 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-27 20:16:24,173 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~x~0#1 >= 0 && main_~x~0#1 <= 1073741823;" "main_~y~0#1 := 1;" [2024-11-27 20:16:24,173 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~y~0#1 < main_~x~0#1;" "main_~y~0#1 := 2 * main_~y~0#1;" [2024-11-27 20:16:24,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:16:24,177 INFO L85 PathProgramCache]: Analyzing trace with hash 925703, now seen corresponding path program 1 times [2024-11-27 20:16:24,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:16:24,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054781892] [2024-11-27 20:16:24,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:16:24,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:16:24,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:16:24,187 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:16:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:16:24,195 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:16:24,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:16:24,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1541, now seen corresponding path program 1 times [2024-11-27 20:16:24,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:16:24,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168654785] [2024-11-27 20:16:24,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:16:24,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:16:24,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:16:24,206 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:16:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:16:24,212 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:16:24,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:16:24,214 INFO L85 PathProgramCache]: Analyzing trace with hash 889601163, now seen corresponding path program 1 times [2024-11-27 20:16:24,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:16:24,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033693706] [2024-11-27 20:16:24,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:16:24,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:16:24,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:16:24,231 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:16:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:16:24,239 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:16:24,305 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:16:24,306 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:16:24,306 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:16:24,306 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:16:24,306 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 20:16:24,306 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:24,306 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:16:24,306 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:16:24,306 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-LICS2004-Fig1.c_Iteration2_Lasso [2024-11-27 20:16:24,307 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:16:24,307 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:16:24,312 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:24,320 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:24,328 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:24,335 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:24,342 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:24,369 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:24,473 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:16:24,473 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 20:16:24,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:24,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:24,476 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:24,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-27 20:16:24,482 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:16:24,482 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:16:24,512 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:16:24,513 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:16:24,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-27 20:16:24,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:24,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:24,522 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:24,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-27 20:16:24,526 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:16:24,526 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:16:24,541 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:16:24,541 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:16:24,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-27 20:16:24,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:24,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:24,551 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:24,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-27 20:16:24,554 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:16:24,554 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:16:24,576 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:16:24,576 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: [] [2024-11-27 20:16:24,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-27 20:16:24,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:24,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:24,592 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:24,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-27 20:16:24,598 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:16:24,598 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:16:24,631 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:16:24,631 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:16:24,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-11-27 20:16:24,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:24,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:24,649 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:24,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-27 20:16:24,653 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:16:24,653 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:16:24,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-27 20:16:24,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:24,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:24,693 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:24,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-27 20:16:24,697 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 20:16:24,697 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:16:26,367 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 20:16:26,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-27 20:16:26,394 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:16:26,394 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:16:26,394 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:16:26,394 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:16:26,394 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 20:16:26,394 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:26,394 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:16:26,394 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:16:26,395 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-LICS2004-Fig1.c_Iteration2_Lasso [2024-11-27 20:16:26,395 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:16:26,395 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:16:26,397 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:26,411 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:26,415 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:26,419 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:26,423 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:26,428 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:26,544 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:16:26,545 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 20:16:26,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:26,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:26,552 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:26,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-27 20:16:26,557 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 20:16:26,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:16:26,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:16:26,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:16:26,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:16:26,580 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-27 20:16:26,581 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-27 20:16:26,589 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:16:26,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-27 20:16:26,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:26,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:26,603 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:26,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-27 20:16:26,606 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 20:16:26,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:16:26,620 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:16:26,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:16:26,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:16:26,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:16:26,621 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:16:26,621 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:16:26,623 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:16:26,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-27 20:16:26,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:26,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:26,637 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:26,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-27 20:16:26,642 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 20:16:26,662 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:16:26,662 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:16:26,662 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:16:26,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:16:26,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:16:26,666 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:16:26,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:16:26,669 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:16:26,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-27 20:16:26,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:26,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:26,678 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:26,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-27 20:16:26,681 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 20:16:26,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:16:26,695 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:16:26,695 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:16:26,695 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:16:26,695 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:16:26,696 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:16:26,696 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:16:26,698 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:16:26,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-27 20:16:26,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:26,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:26,707 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:26,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-27 20:16:26,710 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 20:16:26,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:16:26,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:16:26,724 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:16:26,724 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:16:26,727 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-27 20:16:26,727 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-27 20:16:26,733 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:16:26,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-27 20:16:26,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:26,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:26,748 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:26,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-27 20:16:26,753 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 20:16:26,771 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:16:26,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:16:26,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:16:26,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:16:26,780 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-27 20:16:26,780 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-27 20:16:26,799 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 20:16:26,824 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-11-27 20:16:26,824 INFO L444 ModelExtractionUtils]: 1 out of 10 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-11-27 20:16:26,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:26,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:26,832 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:26,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-27 20:16:26,837 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 20:16:26,858 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2024-11-27 20:16:26,858 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 20:16:26,858 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = -2*ULTIMATE.start_main_~y~0#1 + 2147483645 Supporting invariants [1*ULTIMATE.start_main_~y~0#1 - 1 >= 0, -1*ULTIMATE.start_main_~x~0#1 + 1073741823 >= 0] [2024-11-27 20:16:26,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-27 20:16:26,883 INFO L156 tatePredicateManager]: 0 out of 2 supporting invariants were superfluous and have been removed [2024-11-27 20:16:26,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:16:26,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:16:26,940 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:16:26,941 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:16:26,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:16:26,984 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:16:26,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:16:27,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:16:27,044 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2024-11-27 20:16:27,045 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:16:27,136 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 25 transitions. Complement of second has 6 states. [2024-11-27 20:16:27,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-27 20:16:27,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:16:27,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2024-11-27 20:16:27,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-27 20:16:27,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:16:27,141 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2024-11-27 20:16:27,141 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:16:27,141 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 4 letters. Loop has 4 letters. [2024-11-27 20:16:27,141 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:16:27,141 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 25 transitions. [2024-11-27 20:16:27,143 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-27 20:16:27,145 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 14 states and 17 transitions. [2024-11-27 20:16:27,145 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-11-27 20:16:27,145 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-11-27 20:16:27,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2024-11-27 20:16:27,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:16:27,146 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 17 transitions. [2024-11-27 20:16:27,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2024-11-27 20:16:27,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 11. [2024-11-27 20:16:27,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:16:27,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2024-11-27 20:16:27,147 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 13 transitions. [2024-11-27 20:16:27,147 INFO L425 stractBuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2024-11-27 20:16:27,147 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-27 20:16:27,147 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2024-11-27 20:16:27,148 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-27 20:16:27,148 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:16:27,148 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:16:27,148 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2024-11-27 20:16:27,148 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-27 20:16:27,148 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~x~0#1 >= 0 && main_~x~0#1 <= 1073741823;" "main_~y~0#1 := 1;" "assume !(main_~y~0#1 < main_~x~0#1);" "main_~x~0#1 := main_~x~0#1 - 1;" "assume main_~x~0#1 >= 0 && main_~x~0#1 <= 1073741823;" "main_~y~0#1 := 1;" [2024-11-27 20:16:27,148 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~y~0#1 < main_~x~0#1;" "main_~y~0#1 := 2 * main_~y~0#1;" [2024-11-27 20:16:27,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:16:27,151 INFO L85 PathProgramCache]: Analyzing trace with hash 208289425, now seen corresponding path program 2 times [2024-11-27 20:16:27,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:16:27,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042622350] [2024-11-27 20:16:27,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:16:27,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:16:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:16:27,167 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:16:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:16:27,178 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:16:27,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:16:27,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1541, now seen corresponding path program 2 times [2024-11-27 20:16:27,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:16:27,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538181237] [2024-11-27 20:16:27,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:16:27,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:16:27,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:16:27,187 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:16:27,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:16:27,190 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:16:27,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:16:27,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1697324907, now seen corresponding path program 1 times [2024-11-27 20:16:27,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:16:27,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717306313] [2024-11-27 20:16:27,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:16:27,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:16:27,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:16:27,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:16:27,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717306313] [2024-11-27 20:16:27,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717306313] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:16:27,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345592828] [2024-11-27 20:16:27,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:16:27,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:16:27,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:27,385 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:16:27,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-27 20:16:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:16:27,422 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:16:27,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:16:27,487 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:16:27,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345592828] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:16:27,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:16:27,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-11-27 20:16:27,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439449189] [2024-11-27 20:16:27,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:16:27,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:16:27,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:16:27,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:16:27,593 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:16:27,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:16:27,722 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2024-11-27 20:16:27,723 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 36 transitions. [2024-11-27 20:16:27,724 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-27 20:16:27,724 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 19 states and 21 transitions. [2024-11-27 20:16:27,725 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-11-27 20:16:27,725 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-11-27 20:16:27,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 21 transitions. [2024-11-27 20:16:27,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:16:27,725 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 21 transitions. [2024-11-27 20:16:27,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 21 transitions. [2024-11-27 20:16:27,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 14. [2024-11-27 20:16:27,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:16:27,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2024-11-27 20:16:27,727 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 16 transitions. [2024-11-27 20:16:27,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:16:27,728 INFO L425 stractBuchiCegarLoop]: Abstraction has 14 states and 16 transitions. [2024-11-27 20:16:27,728 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-27 20:16:27,728 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 16 transitions. [2024-11-27 20:16:27,729 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-27 20:16:27,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:16:27,729 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:16:27,729 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1] [2024-11-27 20:16:27,729 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-27 20:16:27,730 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~x~0#1 >= 0 && main_~x~0#1 <= 1073741823;" "main_~y~0#1 := 1;" "assume main_~y~0#1 < main_~x~0#1;" "main_~y~0#1 := 2 * main_~y~0#1;" "assume main_~y~0#1 < main_~x~0#1;" "main_~y~0#1 := 2 * main_~y~0#1;" "assume !(main_~y~0#1 < main_~x~0#1);" "main_~x~0#1 := main_~x~0#1 - 1;" "assume main_~x~0#1 >= 0 && main_~x~0#1 <= 1073741823;" "main_~y~0#1 := 1;" [2024-11-27 20:16:27,730 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~y~0#1 < main_~x~0#1;" "main_~y~0#1 := 2 * main_~y~0#1;" [2024-11-27 20:16:27,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:16:27,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1486740839, now seen corresponding path program 2 times [2024-11-27 20:16:27,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:16:27,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724113151] [2024-11-27 20:16:27,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:16:27,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:16:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:16:27,799 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:16:27,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:16:27,816 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:16:27,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-27 20:16:27,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:16:27,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1541, now seen corresponding path program 3 times [2024-11-27 20:16:27,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:16:27,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502597313] [2024-11-27 20:16:27,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:16:27,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:16:27,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:16:27,825 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:16:27,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:16:27,830 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:16:27,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:16:27,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1466163869, now seen corresponding path program 3 times [2024-11-27 20:16:27,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:16:27,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794843536] [2024-11-27 20:16:27,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:16:27,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:16:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:16:27,849 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:16:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:16:27,864 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:16:27,983 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:16:27,983 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:16:27,983 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:16:27,983 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:16:27,983 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 20:16:27,983 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:27,983 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:16:27,983 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:16:27,983 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-LICS2004-Fig1.c_Iteration4_Lasso [2024-11-27 20:16:27,983 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:16:27,983 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:16:27,985 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:28,004 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:28,008 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:28,011 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:28,018 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:28,021 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:28,103 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:16:28,103 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 20:16:28,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:28,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:28,108 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:28,111 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:16:28,111 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:16:28,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-27 20:16:28,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-27 20:16:28,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:28,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:28,148 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:28,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-27 20:16:28,154 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 20:16:28,154 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:16:28,258 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 20:16:28,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-27 20:16:28,263 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:16:28,263 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:16:28,263 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:16:28,263 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:16:28,263 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 20:16:28,263 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:28,263 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:16:28,263 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:16:28,264 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-LICS2004-Fig1.c_Iteration4_Lasso [2024-11-27 20:16:28,264 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:16:28,264 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:16:28,265 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:28,285 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:28,292 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:28,300 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:28,304 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:28,309 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:16:28,404 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:16:28,404 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 20:16:28,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:28,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:28,408 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:28,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-27 20:16:28,414 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 20:16:28,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:16:28,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:16:28,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:16:28,432 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:16:28,441 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-27 20:16:28,441 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-27 20:16:28,455 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 20:16:28,480 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2024-11-27 20:16:28,480 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2024-11-27 20:16:28,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:16:28,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:16:28,486 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:16:28,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-27 20:16:28,488 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 20:16:28,510 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2024-11-27 20:16:28,510 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 20:16:28,510 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~y~0#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [1*ULTIMATE.start_main_~y~0#1 - 1 >= 0] [2024-11-27 20:16:28,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-11-27 20:16:28,529 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-11-27 20:16:28,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:16:28,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:16:28,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:16:28,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:16:28,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:16:28,641 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:16:28,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:16:28,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:16:28,678 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-27 20:16:28,679 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 16 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:16:28,744 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 16 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 26 transitions. Complement of second has 5 states. [2024-11-27 20:16:28,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-27 20:16:28,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:16:28,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2024-11-27 20:16:28,748 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 12 letters. Loop has 2 letters. [2024-11-27 20:16:28,748 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:16:28,748 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-27 20:16:28,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:16:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:16:28,793 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:16:28,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:16:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:16:28,821 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:16:28,822 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:16:28,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:16:28,854 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-27 20:16:28,854 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 16 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:16:28,903 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 16 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 26 transitions. Complement of second has 5 states. [2024-11-27 20:16:28,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-27 20:16:28,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:16:28,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2024-11-27 20:16:28,906 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 12 letters. Loop has 2 letters. [2024-11-27 20:16:28,907 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:16:28,907 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-27 20:16:28,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:16:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:16:28,962 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:16:28,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:16:28,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:16:28,990 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:16:28,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:16:29,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:16:29,020 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-27 20:16:29,021 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 16 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:16:29,069 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 16 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 18 states and 22 transitions. Complement of second has 4 states. [2024-11-27 20:16:29,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-27 20:16:29,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:16:29,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2024-11-27 20:16:29,071 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 12 letters. Loop has 2 letters. [2024-11-27 20:16:29,071 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:16:29,071 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 14 letters. Loop has 2 letters. [2024-11-27 20:16:29,072 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:16:29,072 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 12 letters. Loop has 4 letters. [2024-11-27 20:16:29,072 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:16:29,072 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2024-11-27 20:16:29,073 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-27 20:16:29,073 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2024-11-27 20:16:29,073 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-27 20:16:29,073 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-27 20:16:29,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-27 20:16:29,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 20:16:29,073 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:16:29,073 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:16:29,078 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:16:29,078 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-27 20:16:29,078 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-27 20:16:29,078 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-27 20:16:29,078 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-27 20:16:29,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.11 08:16:29 BoogieIcfgContainer [2024-11-27 20:16:29,096 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-27 20:16:29,098 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:16:29,098 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:16:29,098 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:16:29,099 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:16:22" (3/4) ... [2024-11-27 20:16:29,101 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 20:16:29,102 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:16:29,106 INFO L158 Benchmark]: Toolchain (without parser) took 7326.82ms. Allocated memory is still 117.4MB. Free memory was 93.5MB in the beginning and 47.6MB in the end (delta: 46.0MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. [2024-11-27 20:16:29,106 INFO L158 Benchmark]: CDTParser took 0.96ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 72.9MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:16:29,106 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.62ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 83.3MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:16:29,107 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.00ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 82.5MB in the end (delta: 808.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:16:29,107 INFO L158 Benchmark]: Boogie Preprocessor took 35.59ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 81.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:16:29,107 INFO L158 Benchmark]: RCFGBuilder took 302.13ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 73.2MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:16:29,108 INFO L158 Benchmark]: BuchiAutomizer took 6709.32ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 48.3MB in the end (delta: 24.9MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2024-11-27 20:16:29,108 INFO L158 Benchmark]: Witness Printer took 4.88ms. Allocated memory is still 117.4MB. Free memory was 47.6MB in the beginning and 47.6MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:16:29,112 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.96ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 72.9MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.62ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 83.3MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.00ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 82.5MB in the end (delta: 808.3kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.59ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 81.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 302.13ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 73.2MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 6709.32ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 48.3MB in the end (delta: 24.9MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. * Witness Printer took 4.88ms. Allocated memory is still 117.4MB. Free memory was 47.6MB in the beginning and 47.6MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function (((long) 2 * x) + 1) and consists of 4 locations. One deterministic module has affine ranking function (2147483645 + ((long) -2 * y)) and consists of 4 locations. One nondeterministic module has affine ranking function (((long) -1 * y) + x) and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.6s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 5.2s. Construction of modules took 0.1s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 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 [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 97 IncrementalHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 29 mSDtfsCounter, 97 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax168 hnf100 lsp59 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq147 hnf93 smp100 dnf100 smp100 tf103 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 54ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-27 20:16:29,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-27 20:16:29,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-27 20:16:29,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81c39e6-05c5-426f-a312-8df8affc3d71/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE