./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.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_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1 --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 d483d112ebc631f1c14642e780c42909cf25d334478fdf38ba7f61b34b8ee811 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:54:42,043 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:54:42,099 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-12-02 13:54:42,103 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:54:42,104 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:54:42,123 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:54:42,124 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:54:42,124 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:54:42,124 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:54:42,125 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:54:42,125 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:54:42,125 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:54:42,125 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:54:42,125 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-12-02 13:54:42,125 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-12-02 13:54:42,126 INFO L153 SettingsManager]: * Use old map elimination=false [2024-12-02 13:54:42,126 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-12-02 13:54:42,126 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-12-02 13:54:42,126 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-12-02 13:54:42,126 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:54:42,126 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-12-02 13:54:42,126 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:54:42,126 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:54:42,126 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-12-02 13:54:42,126 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-12-02 13:54:42,127 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-12-02 13:54:42,127 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 13:54:42,127 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:54:42,127 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-12-02 13:54:42,127 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:54:42,127 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:54:42,127 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:54:42,127 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:54:42,127 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:54:42,128 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-12-02 13:54:42,128 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-12-02 13:54:42,128 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_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1 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 -> d483d112ebc631f1c14642e780c42909cf25d334478fdf38ba7f61b34b8ee811 [2024-12-02 13:54:42,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:54:42,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:54:42,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:54:42,351 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:54:42,351 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:54:42,353 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c [2024-12-02 13:54:45,085 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/data/c25495cbf/98cc1773e0284b0eb64d72cb1ca6a26a/FLAGa762086d0 [2024-12-02 13:54:45,279 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:54:45,279 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c [2024-12-02 13:54:45,286 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/data/c25495cbf/98cc1773e0284b0eb64d72cb1ca6a26a/FLAGa762086d0 [2024-12-02 13:54:45,650 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/data/c25495cbf/98cc1773e0284b0eb64d72cb1ca6a26a [2024-12-02 13:54:45,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:54:45,653 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:54:45,654 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:54:45,655 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:54:45,659 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:54:45,660 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:54:45" (1/1) ... [2024-12-02 13:54:45,660 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c03c4cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:45, skipping insertion in model container [2024-12-02 13:54:45,661 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:54:45" (1/1) ... [2024-12-02 13:54:45,673 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:54:45,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:54:45,794 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:54:45,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:54:45,816 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:54:45,816 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:45 WrapperNode [2024-12-02 13:54:45,817 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:54:45,818 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:54:45,818 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:54:45,818 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:54:45,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:45" (1/1) ... [2024-12-02 13:54:45,827 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:45" (1/1) ... [2024-12-02 13:54:45,840 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2024-12-02 13:54:45,840 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:54:45,840 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:54:45,840 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:54:45,841 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:54:45,848 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:45" (1/1) ... [2024-12-02 13:54:45,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:45" (1/1) ... [2024-12-02 13:54:45,849 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:45" (1/1) ... [2024-12-02 13:54:45,853 INFO L175 MemorySlicer]: No memory access in input program. [2024-12-02 13:54:45,853 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:45" (1/1) ... [2024-12-02 13:54:45,854 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:45" (1/1) ... [2024-12-02 13:54:45,855 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:45" (1/1) ... [2024-12-02 13:54:45,855 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:45" (1/1) ... [2024-12-02 13:54:45,859 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:45" (1/1) ... [2024-12-02 13:54:45,859 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:45" (1/1) ... [2024-12-02 13:54:45,860 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:45" (1/1) ... [2024-12-02 13:54:45,860 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:54:45,861 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:54:45,861 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:54:45,861 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:54:45,862 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:45" (1/1) ... [2024-12-02 13:54:45,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:45,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:45,890 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:45,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-12-02 13:54:45,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:54:45,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:54:45,979 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:54:45,981 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:54:46,035 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-12-02 13:54:46,035 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:54:46,044 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:54:46,044 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 13:54:46,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:54:46 BoogieIcfgContainer [2024-12-02 13:54:46,044 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:54:46,045 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-12-02 13:54:46,045 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-12-02 13:54:46,051 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-12-02 13:54:46,052 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 13:54:46,052 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 01:54:45" (1/3) ... [2024-12-02 13:54:46,053 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@20005c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 01:54:46, skipping insertion in model container [2024-12-02 13:54:46,053 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 13:54:46,053 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:45" (2/3) ... [2024-12-02 13:54:46,053 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@20005c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 01:54:46, skipping insertion in model container [2024-12-02 13:54:46,053 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 13:54:46,053 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:54:46" (3/3) ... [2024-12-02 13:54:46,055 INFO L363 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig8b.c [2024-12-02 13:54:46,102 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-12-02 13:54:46,102 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-12-02 13:54:46,102 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-12-02 13:54:46,102 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-12-02 13:54:46,102 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-12-02 13:54:46,103 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-12-02 13:54:46,103 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-12-02 13:54:46,103 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-12-02 13:54:46,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2024-12-02 13:54:46,121 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 13:54:46,121 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:54:46,121 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:54:46,126 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-12-02 13:54:46,126 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 13:54:46,126 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-12-02 13:54:46,126 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2024-12-02 13:54:46,127 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 13:54:46,127 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:54:46,127 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:54:46,127 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-12-02 13:54:46,127 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 13:54:46,133 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~M~0#1;havoc main_~x~0#1;havoc main_~M~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~M~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~M~0#1 > 0;" [2024-12-02 13:54:46,134 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 != main_~M~0#1;" "assume main_~x~0#1 > main_~M~0#1;main_~x~0#1 := 0;" [2024-12-02 13:54:46,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:46,138 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-12-02 13:54:46,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:54:46,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936585252] [2024-12-02 13:54:46,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:54:46,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:54:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:54:46,199 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:54:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:54:46,211 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:54:46,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:46,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1319, now seen corresponding path program 1 times [2024-12-02 13:54:46,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:54:46,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027116193] [2024-12-02 13:54:46,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:54:46,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:54:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:54:46,222 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:54:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:54:46,227 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:54:46,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:46,228 INFO L85 PathProgramCache]: Analyzing trace with hash 28693896, now seen corresponding path program 1 times [2024-12-02 13:54:46,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:54:46,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770387805] [2024-12-02 13:54:46,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:54:46,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:54:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:54:46,235 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:54:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:54:46,240 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:54:46,305 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 13:54:46,306 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 13:54:46,306 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 13:54:46,306 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 13:54:46,306 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 13:54:46,306 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:46,306 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 13:54:46,306 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 13:54:46,306 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b.c_Iteration1_Lasso [2024-12-02 13:54:46,307 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 13:54:46,307 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 13:54:46,321 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:54:46,333 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:54:46,337 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:54:46,341 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:54:46,345 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:54:46,355 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:54:46,423 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 13:54:46,423 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 13:54:46,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:46,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:46,427 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:46,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-12-02 13:54:46,429 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:54:46,429 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:54:46,450 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:54:46,450 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: [] [2024-12-02 13:54:46,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-12-02 13:54:46,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:46,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:46,458 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:46,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-12-02 13:54:46,460 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:54:46,460 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:54:46,473 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:54:46,473 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 13:54:46,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-12-02 13:54:46,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:46,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:46,480 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:46,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-12-02 13:54:46,482 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:54:46,482 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:54:46,498 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:54:46,498 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 13:54:46,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-12-02 13:54:46,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:46,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:46,508 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:46,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-12-02 13:54:46,510 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:54:46,510 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:54:46,531 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:54:46,531 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: [] [2024-12-02 13:54:46,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-12-02 13:54:46,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:46,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:46,539 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:46,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-12-02 13:54:46,541 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:54:46,541 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:54:46,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-12-02 13:54:46,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:46,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:46,563 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:46,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-12-02 13:54:46,565 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 13:54:46,565 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:54:46,640 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 13:54:46,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-12-02 13:54:46,643 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 13:54:46,643 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 13:54:46,643 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 13:54:46,643 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 13:54:46,643 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 13:54:46,643 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:46,643 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 13:54:46,643 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 13:54:46,643 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b.c_Iteration1_Lasso [2024-12-02 13:54:46,644 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 13:54:46,644 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 13:54:46,645 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:54:46,649 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:54:46,652 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:54:46,655 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:54:46,657 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:54:46,662 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:54:46,717 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 13:54:46,720 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 13:54:46,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:46,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:46,722 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:46,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-12-02 13:54:46,725 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 [2024-12-02 13:54:46,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:54:46,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:54:46,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:54:46,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:54:46,745 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 13:54:46,745 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 13:54:46,751 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 13:54:46,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-12-02 13:54:46,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:46,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:46,758 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:46,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-12-02 13:54:46,761 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 [2024-12-02 13:54:46,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:54:46,772 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 13:54:46,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:54:46,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:54:46,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:54:46,773 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 13:54:46,773 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 13:54:46,775 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 13:54:46,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-12-02 13:54:46,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:46,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:46,784 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:46,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-12-02 13:54:46,794 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 [2024-12-02 13:54:46,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:54:46,805 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 13:54:46,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:54:46,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:54:46,805 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:54:46,806 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 13:54:46,806 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 13:54:46,808 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 13:54:46,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-12-02 13:54:46,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:46,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:46,817 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:46,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-12-02 13:54:46,819 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 [2024-12-02 13:54:46,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:54:46,831 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 13:54:46,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:54:46,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:54:46,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:54:46,831 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 13:54:46,832 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 13:54:46,833 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 13:54:46,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-12-02 13:54:46,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:46,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:46,844 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:46,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-12-02 13:54:46,846 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 [2024-12-02 13:54:46,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:54:46,860 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:54:46,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:54:46,860 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:54:46,863 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 13:54:46,863 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 13:54:46,869 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 13:54:46,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-12-02 13:54:46,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:46,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:46,880 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:46,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-12-02 13:54:46,884 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 [2024-12-02 13:54:46,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:54:46,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:54:46,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:54:46,899 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:54:46,902 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 13:54:46,902 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 13:54:46,911 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 13:54:46,927 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2024-12-02 13:54:46,930 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 4 variables to zero. [2024-12-02 13:54:46,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:46,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:46,933 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:46,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-12-02 13:54:46,936 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 13:54:46,951 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2024-12-02 13:54:46,952 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 13:54:46,952 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~M~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~M~0#1 Supporting invariants [1*ULTIMATE.start_main_~M~0#1 >= 0] [2024-12-02 13:54:46,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-12-02 13:54:46,964 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-12-02 13:54:47,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:54:47,009 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:54:47,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:54:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:54:47,020 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 13:54:47,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:54:47,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:54:47,057 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-12-02 13:54:47,058 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:47,108 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 29 transitions. Complement of second has 6 states. [2024-12-02 13:54:47,109 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 [2024-12-02 13:54:47,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:47,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2024-12-02 13:54:47,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 3 letters. Loop has 2 letters. [2024-12-02 13:54:47,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:54:47,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 5 letters. Loop has 2 letters. [2024-12-02 13:54:47,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:54:47,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 3 letters. Loop has 4 letters. [2024-12-02 13:54:47,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:54:47,121 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 29 transitions. [2024-12-02 13:54:47,123 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 13:54:47,125 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 9 states and 12 transitions. [2024-12-02 13:54:47,125 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-12-02 13:54:47,126 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-12-02 13:54:47,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2024-12-02 13:54:47,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 13:54:47,126 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2024-12-02 13:54:47,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2024-12-02 13:54:47,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-12-02 13:54:47,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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) [2024-12-02 13:54:47,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2024-12-02 13:54:47,141 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2024-12-02 13:54:47,142 INFO L425 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2024-12-02 13:54:47,142 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-12-02 13:54:47,142 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2024-12-02 13:54:47,142 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 13:54:47,142 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:54:47,142 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:54:47,143 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-12-02 13:54:47,143 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 13:54:47,143 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~M~0#1;havoc main_~x~0#1;havoc main_~M~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~M~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~M~0#1 > 0;" "assume main_~x~0#1 != main_~M~0#1;" "assume !(main_~x~0#1 > main_~M~0#1);main_~x~0#1 := 1 + main_~x~0#1;" [2024-12-02 13:54:47,143 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 != main_~M~0#1;" "assume main_~x~0#1 > main_~M~0#1;main_~x~0#1 := 0;" [2024-12-02 13:54:47,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:47,143 INFO L85 PathProgramCache]: Analyzing trace with hash 28693898, now seen corresponding path program 1 times [2024-12-02 13:54:47,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:54:47,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480403398] [2024-12-02 13:54:47,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:54:47,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:54:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:54:47,148 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:54:47,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:54:47,151 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:54:47,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:47,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1319, now seen corresponding path program 2 times [2024-12-02 13:54:47,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:54:47,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786282562] [2024-12-02 13:54:47,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:54:47,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:54:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:54:47,156 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:54:47,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:54:47,158 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:54:47,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:47,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1805032560, now seen corresponding path program 1 times [2024-12-02 13:54:47,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:54:47,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986372536] [2024-12-02 13:54:47,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:54:47,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:54:47,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:54:47,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 13:54:47,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986372536] [2024-12-02 13:54:47,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986372536] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:54:47,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806228641] [2024-12-02 13:54:47,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:54:47,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:54:47,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:47,229 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:54:47,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 13:54:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:54:47,256 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:54:47,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:54:47,290 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:54:47,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806228641] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:54:47,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:54:47,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-12-02 13:54:47,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161195566] [2024-12-02 13:54:47,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:54:47,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 13:54:47,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:54:47,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:54:47,328 INFO L87 Difference]: Start difference. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:47,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:54:47,355 INFO L93 Difference]: Finished difference Result 9 states and 11 transitions. [2024-12-02 13:54:47,355 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 11 transitions. [2024-12-02 13:54:47,358 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 13:54:47,359 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 11 transitions. [2024-12-02 13:54:47,359 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-12-02 13:54:47,359 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-12-02 13:54:47,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 11 transitions. [2024-12-02 13:54:47,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 13:54:47,359 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 11 transitions. [2024-12-02 13:54:47,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 11 transitions. [2024-12-02 13:54:47,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2024-12-02 13:54:47,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:47,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2024-12-02 13:54:47,360 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2024-12-02 13:54:47,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:54:47,361 INFO L425 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2024-12-02 13:54:47,361 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-12-02 13:54:47,361 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2024-12-02 13:54:47,362 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 13:54:47,362 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:54:47,362 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:54:47,362 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-12-02 13:54:47,362 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 13:54:47,362 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~M~0#1;havoc main_~x~0#1;havoc main_~M~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~M~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~M~0#1 > 0;" "assume main_~x~0#1 != main_~M~0#1;" [2024-12-02 13:54:47,362 INFO L749 eck$LassoCheckResult]: Loop: "assume !(main_~x~0#1 > main_~M~0#1);main_~x~0#1 := 1 + main_~x~0#1;" "assume main_~x~0#1 != main_~M~0#1;" [2024-12-02 13:54:47,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:47,363 INFO L85 PathProgramCache]: Analyzing trace with hash 925609, now seen corresponding path program 1 times [2024-12-02 13:54:47,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:54:47,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976350754] [2024-12-02 13:54:47,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:54:47,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:54:47,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:54:47,367 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:54:47,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:54:47,370 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:54:47,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:47,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1561, now seen corresponding path program 1 times [2024-12-02 13:54:47,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:54:47,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909771006] [2024-12-02 13:54:47,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:54:47,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:54:47,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:54:47,375 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:54:47,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:54:47,377 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:54:47,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:47,378 INFO L85 PathProgramCache]: Analyzing trace with hash 889510849, now seen corresponding path program 2 times [2024-12-02 13:54:47,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:54:47,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235093348] [2024-12-02 13:54:47,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:54:47,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:54:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:54:47,383 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:54:47,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:54:47,386 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:54:47,407 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 13:54:47,408 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 13:54:47,408 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 13:54:47,408 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 13:54:47,408 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 13:54:47,408 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:47,408 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 13:54:47,408 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 13:54:47,408 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b.c_Iteration3_Loop [2024-12-02 13:54:47,408 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 13:54:47,408 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 13:54:47,409 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:54:47,413 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:54:47,417 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:54:47,489 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 13:54:47,489 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 13:54:47,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:47,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:47,491 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:47,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-12-02 13:54:47,493 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:54:47,493 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:54:47,511 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:54:47,511 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 13:54:47,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-12-02 13:54:47,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:47,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:47,518 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:47,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-12-02 13:54:47,520 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:54:47,521 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:54:47,539 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:54:47,539 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 13:54:47,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-12-02 13:54:47,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:47,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:47,545 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:47,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-12-02 13:54:47,548 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:54:47,548 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:54:47,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-12-02 13:54:47,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:47,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:47,574 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:47,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-12-02 13:54:47,576 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 13:54:47,576 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:54:47,728 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 13:54:47,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-12-02 13:54:47,732 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 13:54:47,732 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 13:54:47,732 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 13:54:47,732 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 13:54:47,732 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 13:54:47,732 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:47,732 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 13:54:47,732 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 13:54:47,732 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b.c_Iteration3_Loop [2024-12-02 13:54:47,732 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 13:54:47,732 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 13:54:47,733 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:54:47,736 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:54:47,739 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:54:47,793 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 13:54:47,793 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 13:54:47,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:47,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:47,794 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:47,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-12-02 13:54:47,797 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 [2024-12-02 13:54:47,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:54:47,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:54:47,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:54:47,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:54:47,813 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 13:54:47,813 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 13:54:47,817 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 13:54:47,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-12-02 13:54:47,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:47,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:47,824 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:47,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-12-02 13:54:47,826 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 [2024-12-02 13:54:47,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:54:47,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:54:47,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:54:47,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:54:47,840 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 13:54:47,840 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 13:54:47,844 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 13:54:47,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-12-02 13:54:47,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:47,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:47,853 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:47,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-12-02 13:54:47,855 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 [2024-12-02 13:54:47,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:54:47,867 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 13:54:47,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:54:47,867 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-12-02 13:54:47,867 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:54:47,868 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-12-02 13:54:47,868 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 13:54:47,872 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 13:54:47,875 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 13:54:47,875 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-12-02 13:54:47,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:47,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:47,877 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:47,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-12-02 13:54:47,878 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 13:54:47,879 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 13:54:47,879 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 13:54:47,879 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~M~0#1, ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~M~0#1 - 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2024-12-02 13:54:47,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-12-02 13:54:47,888 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 13:54:47,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:54:47,910 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:54:47,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:54:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:54:47,919 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:54:47,919 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:54:47,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:54:47,939 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 [2024-12-02 13:54:47,940 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:47,953 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 15 transitions. Complement of second has 5 states. [2024-12-02 13:54:47,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-12-02 13:54:47,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:54:47,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-12-02 13:54:47,955 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2024-12-02 13:54:47,955 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:54:47,955 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2024-12-02 13:54:47,955 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:54:47,955 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2024-12-02 13:54:47,955 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:54:47,955 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 15 transitions. [2024-12-02 13:54:47,956 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 13:54:47,956 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 10 transitions. [2024-12-02 13:54:47,956 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-12-02 13:54:47,956 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-12-02 13:54:47,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2024-12-02 13:54:47,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 13:54:47,957 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2024-12-02 13:54:47,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2024-12-02 13:54:47,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2024-12-02 13:54:47,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.125) 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) [2024-12-02 13:54:47,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2024-12-02 13:54:47,958 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 9 transitions. [2024-12-02 13:54:47,958 INFO L425 stractBuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2024-12-02 13:54:47,958 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-12-02 13:54:47,958 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 9 transitions. [2024-12-02 13:54:47,958 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 13:54:47,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:54:47,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:54:47,958 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2024-12-02 13:54:47,958 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 13:54:47,959 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~M~0#1;havoc main_~x~0#1;havoc main_~M~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~M~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~M~0#1 > 0;" "assume main_~x~0#1 != main_~M~0#1;" "assume main_~x~0#1 > main_~M~0#1;main_~x~0#1 := 0;" "assume main_~x~0#1 != main_~M~0#1;" [2024-12-02 13:54:47,959 INFO L749 eck$LassoCheckResult]: Loop: "assume !(main_~x~0#1 > main_~M~0#1);main_~x~0#1 := 1 + main_~x~0#1;" "assume main_~x~0#1 != main_~M~0#1;" [2024-12-02 13:54:47,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:47,959 INFO L85 PathProgramCache]: Analyzing trace with hash 889510787, now seen corresponding path program 2 times [2024-12-02 13:54:47,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:54:47,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755697716] [2024-12-02 13:54:47,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:54:47,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:54:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:54:47,963 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:54:47,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:54:47,966 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:54:47,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:47,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1561, now seen corresponding path program 2 times [2024-12-02 13:54:47,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:54:47,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320275648] [2024-12-02 13:54:47,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:54:47,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:54:47,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:54:47,971 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:54:47,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:54:47,973 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:54:47,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:47,974 INFO L85 PathProgramCache]: Analyzing trace with hash 121375003, now seen corresponding path program 2 times [2024-12-02 13:54:47,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:54:47,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361938923] [2024-12-02 13:54:47,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:54:47,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:54:47,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:54:47,979 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:54:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:54:47,983 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:54:48,005 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 13:54:48,005 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 13:54:48,005 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 13:54:48,005 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 13:54:48,005 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 13:54:48,005 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:48,005 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 13:54:48,005 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 13:54:48,005 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b.c_Iteration4_Loop [2024-12-02 13:54:48,005 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 13:54:48,005 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 13:54:48,006 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:54:48,009 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:54:48,017 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:54:48,075 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 13:54:48,075 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 13:54:48,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:48,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:48,077 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:48,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-12-02 13:54:48,080 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:54:48,080 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:54:48,099 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:54:48,099 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 13:54:48,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-12-02 13:54:48,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:48,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:48,109 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:48,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-12-02 13:54:48,111 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:54:48,111 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:54:48,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-12-02 13:54:48,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:48,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:48,138 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:48,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-12-02 13:54:48,140 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 13:54:48,140 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:54:48,294 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 13:54:48,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-12-02 13:54:48,298 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 13:54:48,298 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 13:54:48,298 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 13:54:48,298 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 13:54:48,298 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 13:54:48,298 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:48,298 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 13:54:48,298 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 13:54:48,298 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b.c_Iteration4_Loop [2024-12-02 13:54:48,298 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 13:54:48,299 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 13:54:48,300 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:54:48,307 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:54:48,309 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:54:48,370 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 13:54:48,370 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 13:54:48,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:48,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:48,372 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:48,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-12-02 13:54:48,374 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 [2024-12-02 13:54:48,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-12-02 13:54:48,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-12-02 13:54:48,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:54:48,386 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 13:54:48,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:54:48,386 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-12-02 13:54:48,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:54:48,388 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-12-02 13:54:48,388 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 13:54:48,392 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 13:54:48,395 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 13:54:48,395 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-12-02 13:54:48,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:54:48,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:54:48,397 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:54:48,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-12-02 13:54:48,400 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 13:54:48,400 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 13:54:48,400 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 13:54:48,400 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~M~0#1, ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~M~0#1 - 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2024-12-02 13:54:48,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-12-02 13:54:48,407 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 13:54:48,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:48,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:54:48,422 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:54:48,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:54:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:54:48,431 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:54:48,431 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:54:48,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:54:48,449 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 [2024-12-02 13:54:48,449 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-12-02 13:54:48,453 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 9 states and 10 transitions. Complement of second has 3 states. [2024-12-02 13:54:48,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-12-02 13:54:48,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-12-02 13:54:48,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2024-12-02 13:54:48,455 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 6 letters. Loop has 2 letters. [2024-12-02 13:54:48,455 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:54:48,455 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 13:54:48,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:54:48,469 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:54:48,469 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:54:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:54:48,478 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:54:48,478 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:54:48,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:54:48,496 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-12-02 13:54:48,496 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-12-02 13:54:48,500 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 9 states and 10 transitions. Complement of second has 3 states. [2024-12-02 13:54:48,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-12-02 13:54:48,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-12-02 13:54:48,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2024-12-02 13:54:48,502 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 6 letters. Loop has 2 letters. [2024-12-02 13:54:48,502 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:54:48,502 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 13:54:48,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:54:48,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:54:48,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:54:48,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:54:48,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:54:48,530 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:54:48,530 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:54:48,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:54:48,550 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-12-02 13:54:48,551 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-12-02 13:54:48,568 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 10 states and 11 transitions. Complement of second has 4 states. [2024-12-02 13:54:48,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-12-02 13:54:48,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-12-02 13:54:48,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2024-12-02 13:54:48,570 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 2 letters. [2024-12-02 13:54:48,570 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:54:48,570 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 2 letters. [2024-12-02 13:54:48,570 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:54:48,570 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2024-12-02 13:54:48,570 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:54:48,570 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2024-12-02 13:54:48,571 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-12-02 13:54:48,571 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2024-12-02 13:54:48,571 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-12-02 13:54:48,571 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-12-02 13:54:48,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-12-02 13:54:48,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 13:54:48,571 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 13:54:48,571 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 13:54:48,571 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 13:54:48,571 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-12-02 13:54:48,571 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-12-02 13:54:48,572 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-12-02 13:54:48,572 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-12-02 13:54:48,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 01:54:48 BoogieIcfgContainer [2024-12-02 13:54:48,578 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-12-02 13:54:48,579 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 13:54:48,579 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 13:54:48,579 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 13:54:48,580 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:54:46" (3/4) ... [2024-12-02 13:54:48,581 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 13:54:48,582 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 13:54:48,583 INFO L158 Benchmark]: Toolchain (without parser) took 2929.48ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 97.8MB in the end (delta: 19.6MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2024-12-02 13:54:48,583 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 83.0MB in the end (delta: 31.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:54:48,583 INFO L158 Benchmark]: CACSL2BoogieTranslator took 162.51ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 107.5MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:54:48,583 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.47ms. Allocated memory is still 142.6MB. Free memory was 107.5MB in the beginning and 106.6MB in the end (delta: 924.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:54:48,584 INFO L158 Benchmark]: Boogie Preprocessor took 20.09ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 105.6MB in the end (delta: 965.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:54:48,584 INFO L158 Benchmark]: RCFGBuilder took 183.52ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 96.8MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:54:48,584 INFO L158 Benchmark]: BuchiAutomizer took 2533.08ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 97.8MB in the end (delta: -1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:54:48,584 INFO L158 Benchmark]: Witness Printer took 3.06ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 97.8MB in the end (delta: 15.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:54:48,586 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 83.0MB in the end (delta: 31.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 162.51ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 107.5MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.47ms. Allocated memory is still 142.6MB. Free memory was 107.5MB in the beginning and 106.6MB in the end (delta: 924.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.09ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 105.6MB in the end (delta: 965.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 183.52ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 96.8MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2533.08ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 97.8MB in the end (delta: -1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.06ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 97.8MB in the end (delta: 15.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function (x + ((long) -1 * M)) and consists of 4 locations. One deterministic module has affine ranking function ((((long) 2 * M) + ((long) -2 * x)) + 1) and consists of 3 locations. One nondeterministic module has affine ranking function ((((long) 2 * M) + ((long) -2 * x)) + 1) and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 29 mSDtfsCounter, 39 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax193 hnf100 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq158 hnf95 smp100 dnf137 smp85 tf104 neg100 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 30ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-12-02 13:54:48,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-12-02 13:54:48,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-12-02 13:54:48,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe160219-1fd9-4f5f-bd46-dee97e667aa1/bin/uautomizer-verify-84ZbGMXZE1/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