./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC --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 5ee8036e2d674497ff23bc3ed2316854be1442f7a1dd6897d55977d8700d5402 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:27:40,450 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:27:40,563 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-23 18:27:40,570 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:27:40,571 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:27:40,601 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:27:40,602 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:27:40,602 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:27:40,603 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:27:40,604 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:27:40,605 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:27:40,605 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:27:40,605 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:27:40,606 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-23 18:27:40,606 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-23 18:27:40,607 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-23 18:27:40,607 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-23 18:27:40,607 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-23 18:27:40,607 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-23 18:27:40,607 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:27:40,607 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-23 18:27:40,607 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:27:40,608 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:27:40,608 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-23 18:27:40,608 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-23 18:27:40,608 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-23 18:27:40,608 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 18:27:40,608 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:27:40,608 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-23 18:27:40,608 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:27:40,609 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:27:40,609 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:27:40,610 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:27:40,610 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:27:40,610 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-23 18:27:40,610 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-23 18:27:40,610 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_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC 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 -> 5ee8036e2d674497ff23bc3ed2316854be1442f7a1dd6897d55977d8700d5402 [2024-11-23 18:27:40,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:27:40,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:27:40,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:27:40,967 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:27:40,967 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:27:40,969 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig1.c [2024-11-23 18:27:44,062 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/data/f5cfff810/a16d6f8e1a474d43b75d9887c52b954a/FLAGf6f44b6ac [2024-11-23 18:27:44,350 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:27:44,352 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig1.c [2024-11-23 18:27:44,368 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/data/f5cfff810/a16d6f8e1a474d43b75d9887c52b954a/FLAGf6f44b6ac [2024-11-23 18:27:44,684 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/data/f5cfff810/a16d6f8e1a474d43b75d9887c52b954a [2024-11-23 18:27:44,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:27:44,691 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:27:44,692 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:27:44,692 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:27:44,706 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:27:44,707 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:27:44" (1/1) ... [2024-11-23 18:27:44,707 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c9aafb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:44, skipping insertion in model container [2024-11-23 18:27:44,708 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:27:44" (1/1) ... [2024-11-23 18:27:44,725 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:27:44,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:27:44,889 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:27:44,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:27:44,912 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:27:44,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:44 WrapperNode [2024-11-23 18:27:44,913 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:27:44,914 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:27:44,914 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:27:44,914 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:27:44,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:44" (1/1) ... [2024-11-23 18:27:44,926 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:44" (1/1) ... [2024-11-23 18:27:44,940 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12 [2024-11-23 18:27:44,941 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:27:44,942 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:27:44,942 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:27:44,942 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:27:44,951 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:44" (1/1) ... [2024-11-23 18:27:44,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:44" (1/1) ... [2024-11-23 18:27:44,951 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:44" (1/1) ... [2024-11-23 18:27:44,958 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-23 18:27:44,958 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:44" (1/1) ... [2024-11-23 18:27:44,958 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:44" (1/1) ... [2024-11-23 18:27:44,959 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:44" (1/1) ... [2024-11-23 18:27:44,960 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:44" (1/1) ... [2024-11-23 18:27:44,965 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:44" (1/1) ... [2024-11-23 18:27:44,967 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:44" (1/1) ... [2024-11-23 18:27:44,967 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:44" (1/1) ... [2024-11-23 18:27:44,968 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:27:44,970 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:27:44,970 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:27:44,970 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:27:44,972 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:44" (1/1) ... [2024-11-23 18:27:44,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 18:27:44,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:27:45,008 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 18:27:45,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-23 18:27:45,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:27:45,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:27:45,118 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:27:45,120 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:27:45,171 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-11-23 18:27:45,171 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:27:45,180 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:27:45,180 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-23 18:27:45,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:27:45 BoogieIcfgContainer [2024-11-23 18:27:45,181 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:27:45,182 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-23 18:27:45,182 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-23 18:27:45,190 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-23 18:27:45,191 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 18:27:45,191 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 06:27:44" (1/3) ... [2024-11-23 18:27:45,192 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3700d84a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 06:27:45, skipping insertion in model container [2024-11-23 18:27:45,192 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 18:27:45,193 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:27:44" (2/3) ... [2024-11-23 18:27:45,193 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3700d84a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 06:27:45, skipping insertion in model container [2024-11-23 18:27:45,193 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 18:27:45,193 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:27:45" (3/3) ... [2024-11-23 18:27:45,195 INFO L363 chiAutomizerObserver]: Analyzing ICFG PodelskiRybalchenko-TACAS2011-Fig1.c [2024-11-23 18:27:45,275 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-23 18:27:45,275 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-23 18:27:45,276 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-23 18:27:45,276 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-23 18:27:45,276 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-23 18:27:45,277 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-23 18:27:45,277 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-23 18:27:45,277 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-23 18:27:45,284 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:27:45,303 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-23 18:27:45,303 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 18:27:45,304 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 18:27:45,309 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-23 18:27:45,310 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-23 18:27:45,311 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-23 18:27:45,312 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:27:45,313 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-23 18:27:45,314 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 18:27:45,314 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 18:27:45,315 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-23 18:27:45,315 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-23 18:27:45,323 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~y~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" [2024-11-23 18:27:45,324 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~y~0#1 >= 0;" "main_~y~0#1 := main_~y~0#1 - 1;" [2024-11-23 18:27:45,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:27:45,330 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-23 18:27:45,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 18:27:45,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184691432] [2024-11-23 18:27:45,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:45,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:27:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:27:45,436 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 18:27:45,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:27:45,458 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 18:27:45,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:27:45,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1221, now seen corresponding path program 1 times [2024-11-23 18:27:45,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 18:27:45,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790723690] [2024-11-23 18:27:45,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:45,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:27:45,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:27:45,474 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 18:27:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:27:45,483 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 18:27:45,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:27:45,486 INFO L85 PathProgramCache]: Analyzing trace with hash 925703, now seen corresponding path program 1 times [2024-11-23 18:27:45,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 18:27:45,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779134387] [2024-11-23 18:27:45,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:45,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:27:45,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:27:45,501 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 18:27:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:27:45,510 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 18:27:45,589 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 18:27:45,589 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 18:27:45,590 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 18:27:45,590 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 18:27:45,590 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 18:27:45,590 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 18:27:45,590 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 18:27:45,590 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 18:27:45,591 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig1.c_Iteration1_Loop [2024-11-23 18:27:45,591 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 18:27:45,591 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 18:27:45,604 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 18:27:45,620 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 18:27:45,626 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 18:27:45,716 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 18:27:45,716 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 18:27:45,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 18:27:45,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:27:45,721 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 18:27:45,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-23 18:27:45,724 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 18:27:45,724 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 18:27:45,750 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 18:27:45,750 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: [] [2024-11-23 18:27:45,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-23 18:27:45,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 18:27:45,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:27:45,759 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 18:27:45,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-23 18:27:45,765 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 18:27:45,765 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 18:27:45,788 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 18:27:45,788 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: [] [2024-11-23 18:27:45,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-23 18:27:45,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 18:27:45,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:27:45,798 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 18:27:45,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-23 18:27:45,804 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 18:27:45,804 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 18:27:45,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-23 18:27:45,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 18:27:45,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:27:45,827 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 18:27:45,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-23 18:27:45,829 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 18:27:45,829 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 18:27:45,864 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 18:27:45,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-23 18:27:45,870 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 18:27:45,870 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 18:27:45,870 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 18:27:45,870 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 18:27:45,870 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 18:27:45,870 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 18:27:45,870 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 18:27:45,870 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 18:27:45,870 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig1.c_Iteration1_Loop [2024-11-23 18:27:45,870 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 18:27:45,870 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 18:27:45,873 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 18:27:45,879 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 18:27:45,885 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 18:27:45,949 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 18:27:45,954 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 18:27:45,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 18:27:45,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:27:45,958 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 18:27:45,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-23 18:27:45,963 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 [2024-11-23 18:27:45,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 18:27:45,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 18:27:45,981 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 18:27:45,981 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 18:27:45,990 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-23 18:27:45,991 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-23 18:27:46,000 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 18:27:46,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-23 18:27:46,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 18:27:46,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:27:46,011 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 18:27:46,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-23 18:27:46,014 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 [2024-11-23 18:27:46,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 18:27:46,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 18:27:46,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 18:27:46,027 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 18:27:46,032 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-23 18:27:46,032 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-23 18:27:46,040 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 18:27:46,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-23 18:27:46,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 18:27:46,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:27:46,052 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 18:27:46,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-23 18:27:46,058 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 [2024-11-23 18:27:46,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 18:27:46,074 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 18:27:46,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 18:27:46,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 18:27:46,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 18:27:46,077 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 18:27:46,077 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 18:27:46,083 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 18:27:46,089 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-23 18:27:46,092 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-23 18:27:46,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 18:27:46,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:27:46,095 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 18:27:46,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-23 18:27:46,099 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 18:27:46,099 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 18:27:46,099 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 18:27:46,099 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [] [2024-11-23 18:27:46,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-23 18:27:46,111 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 18:27:46,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:27:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:27:46,155 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 18:27:46,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:27:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:27:46,169 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 18:27:46,169 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:27:46,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:27:46,236 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 [2024-11-23 18:27:46,238 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-23 18:27:46,289 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 14 states and 17 transitions. Complement of second has 6 states. [2024-11-23 18:27:46,291 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 [2024-11-23 18:27:46,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-23 18:27:46,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2024-11-23 18:27:46,305 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2024-11-23 18:27:46,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 18:27:46,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-23 18:27:46,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 18:27:46,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-23 18:27:46,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 18:27:46,307 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2024-11-23 18:27:46,309 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-23 18:27:46,311 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2024-11-23 18:27:46,312 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-23 18:27:46,312 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-23 18:27:46,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-23 18:27:46,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-23 18:27:46,314 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 18:27:46,314 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 18:27:46,314 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 18:27:46,314 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-23 18:27:46,314 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-23 18:27:46,314 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-23 18:27:46,315 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-23 18:27:46,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 06:27:46 BoogieIcfgContainer [2024-11-23 18:27:46,325 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-23 18:27:46,325 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 18:27:46,325 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 18:27:46,326 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 18:27:46,326 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:27:45" (3/4) ... [2024-11-23 18:27:46,329 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 18:27:46,330 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 18:27:46,331 INFO L158 Benchmark]: Toolchain (without parser) took 1640.48ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 56.0MB in the end (delta: 63.0MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-23 18:27:46,332 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 142.6MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:27:46,332 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.06ms. Allocated memory is still 142.6MB. Free memory was 118.8MB in the beginning and 109.0MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 18:27:46,332 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.13ms. Allocated memory is still 142.6MB. Free memory was 109.0MB in the beginning and 108.0MB in the end (delta: 981.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:27:46,333 INFO L158 Benchmark]: Boogie Preprocessor took 27.15ms. Allocated memory is still 142.6MB. Free memory was 108.0MB in the beginning and 107.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:27:46,333 INFO L158 Benchmark]: RCFGBuilder took 211.55ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 98.1MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 18:27:46,334 INFO L158 Benchmark]: BuchiAutomizer took 1142.61ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 56.2MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-23 18:27:46,334 INFO L158 Benchmark]: Witness Printer took 5.06ms. Allocated memory is still 142.6MB. Free memory was 56.2MB in the beginning and 56.0MB in the end (delta: 233.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:27:46,336 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 142.6MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 221.06ms. Allocated memory is still 142.6MB. Free memory was 118.8MB in the beginning and 109.0MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.13ms. Allocated memory is still 142.6MB. Free memory was 109.0MB in the beginning and 108.0MB in the end (delta: 981.3kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.15ms. Allocated memory is still 142.6MB. Free memory was 108.0MB in the beginning and 107.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 211.55ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 98.1MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1142.61ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 56.2MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 5.06ms. Allocated memory is still 142.6MB. Free memory was 56.2MB in the beginning and 56.0MB in the end (delta: 233.9kB). 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long) 2 * y) + 1) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 2 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 45ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-23 18:27:46,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-23 18:27:46,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28299b38-5eeb-4349-91d3-24db1b8707eb/bin/uautomizer-verify-LYvppIcaGC/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