./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy2.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_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/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_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/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_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/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 5ecb51c2655999223e2701919887f64497e4c0c5e2f563d3d5ecc5c1480b1b8e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:18:01,496 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:18:01,554 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-27 23:18:01,559 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:18:01,560 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:18:01,587 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:18:01,588 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:18:01,588 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:18:01,588 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:18:01,588 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:18:01,589 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:18:01,589 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:18:01,589 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:18:01,589 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-27 23:18:01,589 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-27 23:18:01,589 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-27 23:18:01,589 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-27 23:18:01,589 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-27 23:18:01,589 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-27 23:18:01,590 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:18:01,590 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-27 23:18:01,590 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:18:01,590 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:18:01,590 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-27 23:18:01,590 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-27 23:18:01,590 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-27 23:18:01,590 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:18:01,590 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:18:01,590 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-27 23:18:01,590 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:18:01,590 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:18:01,591 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:18:01,591 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:18:01,591 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:18:01,591 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-27 23:18:01,591 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-27 23:18:01,591 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_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/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 -> 5ecb51c2655999223e2701919887f64497e4c0c5e2f563d3d5ecc5c1480b1b8e [2024-11-27 23:18:01,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:18:01,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:18:01,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:18:01,872 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:18:01,872 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:18:01,874 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy2.c [2024-11-27 23:18:04,790 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/data/5ee09258c/286bab22e3ac42de935537f86da31885/FLAG311382cd1 [2024-11-27 23:18:05,068 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:18:05,069 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy2.c [2024-11-27 23:18:05,078 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/data/5ee09258c/286bab22e3ac42de935537f86da31885/FLAG311382cd1 [2024-11-27 23:18:05,400 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/data/5ee09258c/286bab22e3ac42de935537f86da31885 [2024-11-27 23:18:05,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:18:05,406 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:18:05,408 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:18:05,408 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:18:05,412 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:18:05,412 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:18:05" (1/1) ... [2024-11-27 23:18:05,413 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@574d225f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:05, skipping insertion in model container [2024-11-27 23:18:05,413 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:18:05" (1/1) ... [2024-11-27 23:18:05,427 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:18:05,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:18:05,579 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:18:05,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:18:05,605 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:18:05,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:05 WrapperNode [2024-11-27 23:18:05,606 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:18:05,607 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:18:05,607 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:18:05,608 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:18:05,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:05" (1/1) ... [2024-11-27 23:18:05,625 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:05" (1/1) ... [2024-11-27 23:18:05,641 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2024-11-27 23:18:05,642 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:18:05,643 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:18:05,643 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:18:05,643 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:18:05,649 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:05" (1/1) ... [2024-11-27 23:18:05,649 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:05" (1/1) ... [2024-11-27 23:18:05,650 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:05" (1/1) ... [2024-11-27 23:18:05,654 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-27 23:18:05,654 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:05" (1/1) ... [2024-11-27 23:18:05,655 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:05" (1/1) ... [2024-11-27 23:18:05,655 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:05" (1/1) ... [2024-11-27 23:18:05,656 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:05" (1/1) ... [2024-11-27 23:18:05,660 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:05" (1/1) ... [2024-11-27 23:18:05,661 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:05" (1/1) ... [2024-11-27 23:18:05,662 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:05" (1/1) ... [2024-11-27 23:18:05,662 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:18:05,663 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:18:05,663 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:18:05,663 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:18:05,665 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:05" (1/1) ... [2024-11-27 23:18:05,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:18:05,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:05,701 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:18:05,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-27 23:18:05,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:18:05,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:18:05,791 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:18:05,793 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:18:05,850 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-11-27 23:18:05,851 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:18:05,859 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:18:05,860 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 23:18:05,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:18:05 BoogieIcfgContainer [2024-11-27 23:18:05,860 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:18:05,861 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-27 23:18:05,861 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-27 23:18:05,867 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-27 23:18:05,867 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 23:18:05,867 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.11 11:18:05" (1/3) ... [2024-11-27 23:18:05,868 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2932a51f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 11:18:05, skipping insertion in model container [2024-11-27 23:18:05,868 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 23:18:05,869 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:05" (2/3) ... [2024-11-27 23:18:05,869 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2932a51f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 11:18:05, skipping insertion in model container [2024-11-27 23:18:05,869 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 23:18:05,869 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:18:05" (3/3) ... [2024-11-27 23:18:05,870 INFO L363 chiAutomizerObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-easy2.c [2024-11-27 23:18:05,924 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-27 23:18:05,924 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-27 23:18:05,925 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-27 23:18:05,925 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-27 23:18:05,925 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-27 23:18:05,925 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-27 23:18:05,925 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-27 23:18:05,925 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-27 23:18:05,930 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) [2024-11-27 23:18:05,946 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-27 23:18:05,946 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:18:05,946 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:18:05,951 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 23:18:05,951 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-27 23:18:05,952 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-27 23:18:05,952 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) [2024-11-27 23:18:05,952 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-27 23:18:05,953 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:18:05,953 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:18:05,953 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 23:18:05,953 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-27 23:18:05,960 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := 12;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~z~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" [2024-11-27 23:18:05,960 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~z~0#1 > 0;" "main_~x~0#1 := 1 + main_~x~0#1;main_~y~0#1 := main_~y~0#1 - 1;main_~z~0#1 := main_~z~0#1 - 1;" [2024-11-27 23:18:05,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:05,966 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-27 23:18:05,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:18:05,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508106488] [2024-11-27 23:18:05,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:05,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:18:06,048 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:18:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:18:06,066 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:18:06,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:06,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1221, now seen corresponding path program 1 times [2024-11-27 23:18:06,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:18:06,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291264552] [2024-11-27 23:18:06,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:06,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:18:06,080 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:18:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:18:06,086 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:18:06,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:06,087 INFO L85 PathProgramCache]: Analyzing trace with hash 925703, now seen corresponding path program 1 times [2024-11-27 23:18:06,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:18:06,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007138329] [2024-11-27 23:18:06,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:06,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:18:06,096 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:18:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:18:06,102 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:18:06,226 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 23:18:06,228 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 23:18:06,228 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 23:18:06,228 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 23:18:06,228 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 23:18:06,228 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:18:06,229 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 23:18:06,230 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 23:18:06,231 INFO L132 ssoRankerPreferences]: Filename of dumped script: ChawdharyCookGulwaniSagivYang-ESOP2008-easy2.c_Iteration1_Loop [2024-11-27 23:18:06,231 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 23:18:06,231 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 23:18:06,248 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:18:06,265 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:18:06,284 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:18:06,383 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 23:18:06,384 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 23:18:06,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:18:06,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:06,391 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:18:06,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-27 23:18:06,394 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 23:18:06,394 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:18:06,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-27 23:18:06,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:18:06,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:06,430 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:18:06,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-27 23:18:06,434 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 23:18:06,434 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:18:06,472 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 23:18:06,472 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=1}, {ULTIMATE.start_main_~x~0#1=-7}, {ULTIMATE.start_main_~x~0#1=7}] Lambdas: [8, 2, 1] Nus: [1, 1] [2024-11-27 23:18:06,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-27 23:18:06,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:18:06,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:06,485 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:18:06,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-27 23:18:06,490 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 23:18:06,490 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:18:06,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-27 23:18:06,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:18:06,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:06,520 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:18:06,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-27 23:18:06,524 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 23:18:06,525 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 23:18:06,565 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 23:18:06,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-27 23:18:06,571 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 23:18:06,571 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 23:18:06,571 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 23:18:06,572 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 23:18:06,572 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 23:18:06,572 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:18:06,572 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 23:18:06,572 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 23:18:06,572 INFO L132 ssoRankerPreferences]: Filename of dumped script: ChawdharyCookGulwaniSagivYang-ESOP2008-easy2.c_Iteration1_Loop [2024-11-27 23:18:06,572 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 23:18:06,572 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 23:18:06,573 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:18:06,582 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:18:06,594 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 23:18:06,679 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 23:18:06,685 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 23:18:06,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:18:06,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:06,688 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:18:06,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-27 23:18:06,695 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 23:18:06,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 23:18:06,714 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 23:18:06,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 23:18:06,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 23:18:06,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 23:18:06,720 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 23:18:06,721 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 23:18:06,724 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 23:18:06,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-27 23:18:06,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:18:06,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:06,736 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:18:06,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-27 23:18:06,740 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 23:18:06,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 23:18:06,756 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 23:18:06,756 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 23:18:06,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 23:18:06,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 23:18:06,759 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 23:18:06,760 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 23:18:06,768 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 23:18:06,772 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-27 23:18:06,776 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-27 23:18:06,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:18:06,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:06,783 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:18:06,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-27 23:18:06,786 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 23:18:06,786 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-27 23:18:06,786 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 23:18:06,787 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1) = 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2024-11-27 23:18:06,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-27 23:18:06,800 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-27 23:18:06,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:06,843 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 23:18:06,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:18:06,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:06,865 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:18:06,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:18:06,908 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 23:18:06,941 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 23:18:06,943 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) [2024-11-27 23:18:06,987 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. [2024-11-27 23:18:06,989 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 23:18:06,993 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) [2024-11-27 23:18:06,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2024-11-27 23:18:07,001 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2024-11-27 23:18:07,001 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 23:18:07,001 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-27 23:18:07,001 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 23:18:07,002 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-27 23:18:07,002 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 23:18:07,002 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2024-11-27 23:18:07,004 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-27 23:18:07,006 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2024-11-27 23:18:07,007 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-27 23:18:07,007 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-27 23:18:07,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-27 23:18:07,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 23:18:07,008 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 23:18:07,008 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 23:18:07,008 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 23:18:07,008 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-27 23:18:07,008 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-27 23:18:07,008 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-27 23:18:07,008 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-27 23:18:07,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.11 11:18:07 BoogieIcfgContainer [2024-11-27 23:18:07,017 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-27 23:18:07,018 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:18:07,018 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:18:07,018 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:18:07,018 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:18:05" (3/4) ... [2024-11-27 23:18:07,021 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 23:18:07,022 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:18:07,023 INFO L158 Benchmark]: Toolchain (without parser) took 1616.91ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 37.1MB in the end (delta: 54.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-27 23:18:07,023 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 83.9MB. Free memory is still 41.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:18:07,023 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.45ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 82.1MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:18:07,023 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.88ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 81.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:18:07,024 INFO L158 Benchmark]: Boogie Preprocessor took 20.02ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 80.2MB in the end (delta: 798.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:18:07,024 INFO L158 Benchmark]: RCFGBuilder took 197.08ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 72.5MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:18:07,024 INFO L158 Benchmark]: BuchiAutomizer took 1155.79ms. Allocated memory is still 117.4MB. Free memory was 72.1MB in the beginning and 37.5MB in the end (delta: 34.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-27 23:18:07,025 INFO L158 Benchmark]: Witness Printer took 4.29ms. Allocated memory is still 117.4MB. Free memory was 37.5MB in the beginning and 37.1MB in the end (delta: 393.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:18:07,027 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 83.9MB. Free memory is still 41.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 198.45ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 82.1MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.88ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 81.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.02ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 80.2MB in the end (delta: 798.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 197.08ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 72.5MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1155.79ms. Allocated memory is still 117.4MB. Free memory was 72.1MB in the beginning and 37.5MB in the end (delta: 34.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 4.29ms. Allocated memory is still 117.4MB. Free memory was 37.5MB in the beginning and 37.1MB in the end (delta: 393.2kB). 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 z and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. 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: inital20 mio100 ax100 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 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! [2024-11-27 23:18:07,054 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Exception during sending of exit command (exit): Stream Closed [2024-11-27 23:18:07,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-27 23:18:07,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02e3e81-2eb3-421b-b8e2-efb62a1dbf3a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE