./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2.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_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/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_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/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_8d6ea83f-9ded-4faf-a461-0924147788ce/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 0d6528b7cc69fe4ab1ae178e84639571fa28bd084493b226ea467e9ac1e22d5f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:44:55,084 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:44:55,139 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-12-02 13:44:55,143 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:44:55,143 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:44:55,164 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:44:55,165 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:44:55,165 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:44:55,165 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:44:55,166 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:44:55,166 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:44:55,166 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:44:55,166 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:44:55,167 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-12-02 13:44:55,167 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-12-02 13:44:55,167 INFO L153 SettingsManager]: * Use old map elimination=false [2024-12-02 13:44:55,167 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-12-02 13:44:55,167 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-12-02 13:44:55,167 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-12-02 13:44:55,167 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:44:55,167 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-12-02 13:44:55,167 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:44:55,167 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:44:55,167 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-12-02 13:44:55,167 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-12-02 13:44:55,168 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-12-02 13:44:55,168 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 13:44:55,168 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:44:55,168 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-12-02 13:44:55,168 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:44:55,168 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:44:55,168 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:44:55,168 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:44:55,168 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:44:55,168 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-12-02 13:44:55,169 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-12-02 13:44:55,169 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_8d6ea83f-9ded-4faf-a461-0924147788ce/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 -> 0d6528b7cc69fe4ab1ae178e84639571fa28bd084493b226ea467e9ac1e22d5f [2024-12-02 13:44:55,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:44:55,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:44:55,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:44:55,410 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:44:55,410 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:44:55,411 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2.c [2024-12-02 13:44:58,140 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/data/2918fcdc2/3365ab2025914ed89e74427362c1b296/FLAG6cff7eac4 [2024-12-02 13:44:58,306 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:44:58,307 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2.c [2024-12-02 13:44:58,312 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/data/2918fcdc2/3365ab2025914ed89e74427362c1b296/FLAG6cff7eac4 [2024-12-02 13:44:58,327 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/data/2918fcdc2/3365ab2025914ed89e74427362c1b296 [2024-12-02 13:44:58,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:44:58,330 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:44:58,332 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:44:58,332 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:44:58,336 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:44:58,337 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:44:58" (1/1) ... [2024-12-02 13:44:58,338 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31bbdef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:58, skipping insertion in model container [2024-12-02 13:44:58,338 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:44:58" (1/1) ... [2024-12-02 13:44:58,351 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:44:58,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:44:58,484 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:44:58,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:44:58,506 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:44:58,507 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:58 WrapperNode [2024-12-02 13:44:58,507 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:44:58,508 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:44:58,508 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:44:58,508 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:44:58,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:58" (1/1) ... [2024-12-02 13:44:58,518 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:58" (1/1) ... [2024-12-02 13:44:58,531 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2024-12-02 13:44:58,531 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:44:58,532 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:44:58,532 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:44:58,532 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:44:58,540 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:58" (1/1) ... [2024-12-02 13:44:58,540 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:58" (1/1) ... [2024-12-02 13:44:58,540 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:58" (1/1) ... [2024-12-02 13:44:58,545 INFO L175 MemorySlicer]: No memory access in input program. [2024-12-02 13:44:58,545 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:58" (1/1) ... [2024-12-02 13:44:58,545 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:58" (1/1) ... [2024-12-02 13:44:58,546 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:58" (1/1) ... [2024-12-02 13:44:58,547 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:58" (1/1) ... [2024-12-02 13:44:58,551 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:58" (1/1) ... [2024-12-02 13:44:58,551 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:58" (1/1) ... [2024-12-02 13:44:58,552 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:58" (1/1) ... [2024-12-02 13:44:58,553 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:44:58,553 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:44:58,553 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:44:58,554 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:44:58,554 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:58" (1/1) ... [2024-12-02 13:44:58,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:44:58,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:44:58,583 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:44:58,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-12-02 13:44:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:44:58,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:44:58,674 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:44:58,676 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:44:58,721 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-12-02 13:44:58,721 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:44:58,729 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:44:58,730 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 13:44:58,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:44:58 BoogieIcfgContainer [2024-12-02 13:44:58,730 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:44:58,731 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-12-02 13:44:58,731 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-12-02 13:44:58,737 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-12-02 13:44:58,737 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 13:44:58,737 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 01:44:58" (1/3) ... [2024-12-02 13:44:58,738 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@619b51c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 01:44:58, skipping insertion in model container [2024-12-02 13:44:58,739 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 13:44:58,739 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:58" (2/3) ... [2024-12-02 13:44:58,739 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@619b51c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 01:44:58, skipping insertion in model container [2024-12-02 13:44:58,739 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 13:44:58,739 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:44:58" (3/3) ... [2024-12-02 13:44:58,740 INFO L363 chiAutomizerObserver]: Analyzing ICFG PodelskiRybalchenko-TACAS2011-Fig2.c [2024-12-02 13:44:58,787 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-12-02 13:44:58,787 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-12-02 13:44:58,787 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-12-02 13:44:58,787 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-12-02 13:44:58,787 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-12-02 13:44:58,788 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-12-02 13:44:58,788 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-12-02 13:44:58,788 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-12-02 13:44:58,792 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:44:58,807 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-12-02 13:44:58,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:44:58,807 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:44:58,811 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 13:44:58,812 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-12-02 13:44:58,812 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-12-02 13:44:58,812 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:44:58,813 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-12-02 13:44:58,813 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:44:58,813 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:44:58,813 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 13:44:58,813 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-12-02 13:44:58,820 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" [2024-12-02 13:44:58,820 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 >= 0;" "main_~y~0#1 := 1;" "assume !(main_~y~0#1 < main_~x~0#1);" "main_~x~0#1 := main_~x~0#1 - 1;" [2024-12-02 13:44:58,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:58,825 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-12-02 13:44:58,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:44:58,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531668801] [2024-12-02 13:44:58,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:58,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:44:58,887 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:44:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:44:58,899 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:44:58,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:58,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1174027, now seen corresponding path program 1 times [2024-12-02 13:44:58,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:44:58,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287287672] [2024-12-02 13:44:58,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:58,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:44:58,912 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:44:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:44:58,917 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:44:58,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:58,918 INFO L85 PathProgramCache]: Analyzing trace with hash 889601229, now seen corresponding path program 1 times [2024-12-02 13:44:58,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:44:58,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422518146] [2024-12-02 13:44:58,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:58,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:44:58,926 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:44:58,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:44:58,931 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:44:59,001 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 13:44:59,001 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 13:44:59,001 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 13:44:59,001 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 13:44:59,001 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 13:44:59,001 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:44:59,002 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 13:44:59,002 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 13:44:59,002 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig2.c_Iteration1_Loop [2024-12-02 13:44:59,002 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 13:44:59,002 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 13:44:59,013 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:44:59,024 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:44:59,028 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:44:59,032 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:44:59,105 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 13:44:59,106 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 13:44:59,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:44:59,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:44:59,109 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:44:59,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-12-02 13:44:59,112 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:44:59,112 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:44:59,135 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:44:59,136 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 13:44:59,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-12-02 13:44:59,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:44:59,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:44:59,144 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:44:59,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-12-02 13:44:59,146 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:44:59,147 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:44:59,167 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:44:59,167 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 13:44:59,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-12-02 13:44:59,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:44:59,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:44:59,174 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:44:59,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-12-02 13:44:59,177 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:44:59,177 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:44:59,190 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:44:59,190 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=0} Honda state: {ULTIMATE.start_main_~y~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 13:44:59,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-12-02 13:44:59,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:44:59,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:44:59,198 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:44:59,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-12-02 13:44:59,200 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:44:59,200 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:44:59,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-12-02 13:44:59,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:44:59,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:44:59,220 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:44:59,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-12-02 13:44:59,222 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 13:44:59,222 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:44:59,238 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 13:44:59,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-12-02 13:44:59,244 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 13:44:59,244 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 13:44:59,244 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 13:44:59,244 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 13:44:59,244 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 13:44:59,244 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:44:59,244 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 13:44:59,245 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 13:44:59,245 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig2.c_Iteration1_Loop [2024-12-02 13:44:59,245 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 13:44:59,245 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 13:44:59,247 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:44:59,252 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:44:59,256 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:44:59,259 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:44:59,322 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 13:44:59,325 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 13:44:59,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:44:59,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:44:59,328 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:44:59,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-12-02 13:44:59,331 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 13:44:59,343 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:44:59,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:44:59,343 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:44:59,344 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:44:59,350 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 13:44:59,350 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 13:44:59,357 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 13:44:59,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-12-02 13:44:59,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:44:59,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:44:59,367 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:44:59,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-12-02 13:44:59,369 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 13:44:59,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:44:59,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:44:59,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:44:59,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:44:59,384 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 13:44:59,384 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 13:44:59,390 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 13:44:59,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-12-02 13:44:59,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:44:59,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:44:59,399 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:44:59,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-12-02 13:44:59,401 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 13:44:59,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:44:59,412 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 13:44:59,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:44:59,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:44:59,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:44:59,413 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 13:44:59,413 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 13:44:59,415 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 13:44:59,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-12-02 13:44:59,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:44:59,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:44:59,422 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:44:59,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-12-02 13:44:59,424 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 13:44:59,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:44:59,436 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 13:44:59,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:44:59,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:44:59,436 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:44:59,438 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 13:44:59,438 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 13:44:59,441 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 13:44:59,447 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 13:44:59,450 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-12-02 13:44:59,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:44:59,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:44:59,453 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:44:59,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-12-02 13:44:59,455 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 13:44:59,455 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 13:44:59,455 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 13:44:59,456 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2024-12-02 13:44:59,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-12-02 13:44:59,465 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 13:44:59,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:59,499 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:44:59,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:44:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:44:59,511 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:44:59,511 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:44:59,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-12-02 13:44:59,559 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 13:44:59,578 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 13:44:59,579 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:44:59,620 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 25 states and 35 transitions. Complement of second has 6 states. [2024-12-02 13:44:59,622 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 13:44:59,626 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 13:44:59,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2024-12-02 13:44:59,632 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 2 letters. Loop has 4 letters. [2024-12-02 13:44:59,633 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:44:59,633 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 6 letters. Loop has 4 letters. [2024-12-02 13:44:59,633 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:44:59,633 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 2 letters. Loop has 8 letters. [2024-12-02 13:44:59,634 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:44:59,634 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 35 transitions. [2024-12-02 13:44:59,636 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 13:44:59,638 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 11 states and 14 transitions. [2024-12-02 13:44:59,639 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-12-02 13:44:59,639 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-12-02 13:44:59,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2024-12-02 13:44:59,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 13:44:59,640 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-12-02 13:44:59,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2024-12-02 13:44:59,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-12-02 13:44:59,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:44:59,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2024-12-02 13:44:59,656 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-12-02 13:44:59,656 INFO L425 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-12-02 13:44:59,656 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-12-02 13:44:59,656 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2024-12-02 13:44:59,657 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 13:44:59,657 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:44:59,657 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:44:59,657 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-12-02 13:44:59,657 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 13:44:59,658 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~x~0#1 >= 0;" "main_~y~0#1 := 1;" [2024-12-02 13:44:59,658 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~y~0#1 < main_~x~0#1;" "main_~y~0#1 := 1 + main_~y~0#1;" [2024-12-02 13:44:59,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:59,658 INFO L85 PathProgramCache]: Analyzing trace with hash 925703, now seen corresponding path program 1 times [2024-12-02 13:44:59,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:44:59,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262171709] [2024-12-02 13:44:59,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:59,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:59,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:44:59,662 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:44:59,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:44:59,665 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:44:59,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:59,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1541, now seen corresponding path program 1 times [2024-12-02 13:44:59,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:44:59,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466701086] [2024-12-02 13:44:59,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:59,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:59,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:44:59,670 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:44:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:44:59,673 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:44:59,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:44:59,674 INFO L85 PathProgramCache]: Analyzing trace with hash 889601163, now seen corresponding path program 1 times [2024-12-02 13:44:59,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:44:59,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134057049] [2024-12-02 13:44:59,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:44:59,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:44:59,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:44:59,678 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:44:59,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:44:59,682 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:44:59,695 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 13:44:59,695 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 13:44:59,696 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 13:44:59,696 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 13:44:59,696 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 13:44:59,696 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:44:59,696 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 13:44:59,696 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 13:44:59,696 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig2.c_Iteration2_Loop [2024-12-02 13:44:59,696 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 13:44:59,696 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 13:44:59,697 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:44:59,700 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:44:59,706 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:44:59,739 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 13:44:59,739 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 13:44:59,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:44:59,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:44:59,740 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:44:59,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-12-02 13:44:59,743 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:44:59,743 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:44:59,762 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:44:59,762 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 13:44:59,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-12-02 13:44:59,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:44:59,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:44:59,772 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:44:59,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-12-02 13:44:59,774 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:44:59,775 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:44:59,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-12-02 13:44:59,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:44:59,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:44:59,799 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:44:59,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-12-02 13:44:59,801 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 13:44:59,802 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:44:59,874 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 13:44:59,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-12-02 13:44:59,877 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 13:44:59,877 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 13:44:59,877 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 13:44:59,878 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 13:44:59,878 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 13:44:59,878 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:44:59,878 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 13:44:59,878 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 13:44:59,878 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig2.c_Iteration2_Loop [2024-12-02 13:44:59,878 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 13:44:59,878 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 13:44:59,879 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:44:59,881 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:44:59,888 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:44:59,925 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 13:44:59,925 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 13:44:59,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:44:59,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:44:59,927 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:44:59,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-12-02 13:44:59,929 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 13:44:59,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:44:59,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:44:59,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:44:59,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:44:59,943 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 13:44:59,944 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 13:44:59,948 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 13:44:59,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-12-02 13:44:59,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:44:59,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:44:59,957 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:44:59,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-12-02 13:44:59,959 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 13:44:59,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:44:59,971 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 13:44:59,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:44:59,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:44:59,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:44:59,972 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 13:44:59,972 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 13:44:59,975 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 13:44:59,978 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 13:44:59,978 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-12-02 13:44:59,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:44:59,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:44:59,980 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:44:59,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-12-02 13:44:59,983 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 13:44:59,983 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 13:44:59,983 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 13:44:59,983 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~y~0#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-12-02 13:44:59,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-12-02 13:44:59,991 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 13:45:00,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:00,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:00,009 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:45:00,010 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:45:00,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:00,019 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:45:00,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:45:00,036 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 13:45:00,036 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 13:45:00,037 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 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 13:45:00,057 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. 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 20 states and 25 transitions. Complement of second has 5 states. [2024-12-02 13:45:00,058 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 13:45:00,058 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 13:45:00,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2024-12-02 13:45:00,059 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 2 letters. [2024-12-02 13:45:00,059 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:45:00,059 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2024-12-02 13:45:00,059 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:45:00,059 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 4 letters. [2024-12-02 13:45:00,059 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:45:00,059 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 25 transitions. [2024-12-02 13:45:00,060 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 13:45:00,061 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 14 states and 17 transitions. [2024-12-02 13:45:00,061 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-12-02 13:45:00,061 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-12-02 13:45:00,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2024-12-02 13:45:00,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 13:45:00,061 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 17 transitions. [2024-12-02 13:45:00,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2024-12-02 13:45:00,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 11. [2024-12-02 13:45:00,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:45:00,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2024-12-02 13:45:00,063 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 13 transitions. [2024-12-02 13:45:00,063 INFO L425 stractBuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2024-12-02 13:45:00,063 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-12-02 13:45:00,063 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2024-12-02 13:45:00,063 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 13:45:00,063 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:45:00,063 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:45:00,063 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2024-12-02 13:45:00,064 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 13:45:00,064 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~x~0#1 >= 0;" "main_~y~0#1 := 1;" "assume !(main_~y~0#1 < main_~x~0#1);" "main_~x~0#1 := main_~x~0#1 - 1;" "assume main_~x~0#1 >= 0;" "main_~y~0#1 := 1;" [2024-12-02 13:45:00,064 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~y~0#1 < main_~x~0#1;" "main_~y~0#1 := 1 + main_~y~0#1;" [2024-12-02 13:45:00,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:00,064 INFO L85 PathProgramCache]: Analyzing trace with hash 208289425, now seen corresponding path program 2 times [2024-12-02 13:45:00,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:45:00,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219282620] [2024-12-02 13:45:00,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:00,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:45:00,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:45:00,070 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:45:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:45:00,074 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:45:00,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:00,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1541, now seen corresponding path program 2 times [2024-12-02 13:45:00,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:45:00,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313684784] [2024-12-02 13:45:00,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:00,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:45:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:45:00,079 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:45:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:45:00,081 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:45:00,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:00,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1697324907, now seen corresponding path program 1 times [2024-12-02 13:45:00,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:45:00,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499697291] [2024-12-02 13:45:00,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:00,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:45:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:00,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 13:45:00,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499697291] [2024-12-02 13:45:00,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499697291] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:45:00,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008243491] [2024-12-02 13:45:00,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:45:00,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:45:00,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:45:00,174 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:45:00,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-12-02 13:45:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:00,195 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 13:45:00,196 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:45:00,230 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:45:00,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008243491] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:45:00,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:45:00,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-12-02 13:45:00,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127460627] [2024-12-02 13:45:00,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:45:00,277 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 13:45:00,277 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 13:45:00,277 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 13:45:00,277 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 13:45:00,277 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 13:45:00,277 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:45:00,277 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 13:45:00,277 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 13:45:00,277 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig2.c_Iteration3_Loop [2024-12-02 13:45:00,277 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 13:45:00,277 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 13:45:00,278 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:45:00,280 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:45:00,286 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:45:00,318 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 13:45:00,318 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 13:45:00,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:45:00,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:45:00,320 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:45:00,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-12-02 13:45:00,323 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:45:00,323 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:45:00,342 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:45:00,342 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 13:45:00,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-12-02 13:45:00,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:45:00,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:45:00,350 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:45:00,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-12-02 13:45:00,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:45:00,353 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:45:00,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-12-02 13:45:00,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:45:00,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:45:00,374 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:45:00,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-12-02 13:45:00,376 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 13:45:00,376 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:45:00,460 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 13:45:00,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-12-02 13:45:00,463 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 13:45:00,463 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 13:45:00,463 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 13:45:00,463 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 13:45:00,463 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 13:45:00,463 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:45:00,463 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 13:45:00,463 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 13:45:00,464 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig2.c_Iteration3_Loop [2024-12-02 13:45:00,464 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 13:45:00,464 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 13:45:00,465 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:45:00,467 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:45:00,472 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:45:00,502 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 13:45:00,502 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 13:45:00,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:45:00,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:45:00,503 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:45:00,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-12-02 13:45:00,506 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 13:45:00,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:45:00,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:45:00,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:45:00,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:45:00,519 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 13:45:00,519 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 13:45:00,523 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 13:45:00,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-12-02 13:45:00,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:45:00,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:45:00,534 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:45:00,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-12-02 13:45:00,536 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 13:45:00,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:45:00,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 13:45:00,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:45:00,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:45:00,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:45:00,550 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 13:45:00,550 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 13:45:00,553 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 13:45:00,555 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 13:45:00,555 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-12-02 13:45:00,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:45:00,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:45:00,557 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:45:00,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-12-02 13:45:00,559 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 13:45:00,559 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 13:45:00,559 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 13:45:00,559 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-12-02 13:45:00,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-12-02 13:45:00,566 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 13:45:00,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:00,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:00,584 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:45:00,585 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:45:00,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:00,600 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:45:00,601 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:45:00,617 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 13:45:00,617 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 13:45:00,618 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 13:45:00,635 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) Result 15 states and 18 transitions. Complement of second has 5 states. [2024-12-02 13:45:00,636 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 13:45:00,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 13:45:00,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2024-12-02 13:45:00,637 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 8 letters. Loop has 2 letters. [2024-12-02 13:45:00,637 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:45:00,637 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 13:45:00,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:00,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:00,655 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:45:00,655 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:45:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:00,672 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:45:00,673 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:45:00,689 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 13:45:00,689 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 13:45:00,690 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 13:45:00,707 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) Result 15 states and 18 transitions. Complement of second has 5 states. [2024-12-02 13:45:00,707 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 13:45:00,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 13:45:00,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2024-12-02 13:45:00,708 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 8 letters. Loop has 2 letters. [2024-12-02 13:45:00,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:45:00,708 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 13:45:00,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:45:00,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:00,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:45:00,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:45:00,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-12-02 13:45:00,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:45:00,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-12-02 13:45:00,757 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:45:00,757 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:45:00,769 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 13:45:00,769 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 13:45:00,769 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 13:45:00,783 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) Result 14 states and 17 transitions. Complement of second has 4 states. [2024-12-02 13:45:00,783 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 13:45:00,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 13:45:00,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2024-12-02 13:45:00,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2024-12-02 13:45:00,784 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:45:00,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2024-12-02 13:45:00,784 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:45:00,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 4 letters. [2024-12-02 13:45:00,785 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:45:00,785 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2024-12-02 13:45:00,785 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-12-02 13:45:00,785 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2024-12-02 13:45:00,785 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-12-02 13:45:00,785 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-12-02 13:45:00,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-12-02 13:45:00,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 13:45:00,786 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 13:45:00,786 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 13:45:00,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 13:45:00,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:45:00,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:45:00,788 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:45:00,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:45:00,790 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-12-02 13:45:00,790 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-12-02 13:45:00,790 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-12-02 13:45:00,790 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 13:45:00,790 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-12-02 13:45:00,790 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-12-02 13:45:00,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-12-02 13:45:00,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 13:45:00,790 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 13:45:00,790 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 13:45:00,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 13:45:00,791 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 13:45:00,791 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-12-02 13:45:00,791 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-12-02 13:45:00,791 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-12-02 13:45:00,791 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-12-02 13:45:00,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 01:45:00 BoogieIcfgContainer [2024-12-02 13:45:00,799 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-12-02 13:45:00,799 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 13:45:00,799 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 13:45:00,799 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 13:45:00,800 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:44:58" (3/4) ... [2024-12-02 13:45:00,802 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 13:45:00,803 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 13:45:00,804 INFO L158 Benchmark]: Toolchain (without parser) took 2473.29ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 85.4MB in the end (delta: 7.5MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2024-12-02 13:45:00,804 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 72.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:45:00,804 INFO L158 Benchmark]: CACSL2BoogieTranslator took 175.83ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 82.8MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:45:00,804 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.18ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 82.0MB in the end (delta: 800.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:45:00,805 INFO L158 Benchmark]: Boogie Preprocessor took 20.89ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 81.0MB in the end (delta: 787.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:45:00,805 INFO L158 Benchmark]: RCFGBuilder took 176.79ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 72.8MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:45:00,805 INFO L158 Benchmark]: BuchiAutomizer took 2067.73ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 85.4MB in the end (delta: -12.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:45:00,805 INFO L158 Benchmark]: Witness Printer took 3.66ms. Allocated memory is still 117.4MB. Free memory was 85.4MB in the beginning and 85.4MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:45:00,807 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 72.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 175.83ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 82.8MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.18ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 82.0MB in the end (delta: 800.7kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.89ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 81.0MB in the end (delta: 787.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 176.79ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 72.8MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2067.73ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 85.4MB in the end (delta: -12.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.66ms. Allocated memory is still 117.4MB. Free memory was 85.4MB in the beginning and 85.4MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function (((long) 2 * x) + 1) and consists of 4 locations. One deterministic module has affine ranking function (((long) -1 * y) + x) and consists of 3 locations. One nondeterministic module has affine ranking function (((long) -1 * y) + x) and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 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, 33 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35 IncrementalHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 24 mSDtfsCounter, 35 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax197 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq148 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 30ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s 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 13:45:00,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-12-02 13:45:01,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6ea83f-9ded-4faf-a461-0924147788ce/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