./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.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_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/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_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/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_9104589a-e493-4151-a129-fa96e0156815/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 da22ffb72429307957b6c0c7dbecd683a89e13ab06c6f4d1911b51bf365e4d9f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:29:31,908 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:29:31,963 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-12-02 13:29:31,967 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:29:31,967 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:29:31,988 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:29:31,988 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:29:31,988 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:29:31,989 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:29:31,989 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:29:31,989 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:29:31,989 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:29:31,989 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:29:31,990 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-12-02 13:29:31,990 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-12-02 13:29:31,990 INFO L153 SettingsManager]: * Use old map elimination=false [2024-12-02 13:29:31,990 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-12-02 13:29:31,990 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-12-02 13:29:31,990 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-12-02 13:29:31,990 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:29:31,990 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-12-02 13:29:31,990 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:29:31,991 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:29:31,991 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-12-02 13:29:31,991 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-12-02 13:29:31,991 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-12-02 13:29:31,991 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 13:29:31,991 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:29:31,991 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-12-02 13:29:31,991 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:29:31,991 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:29:31,991 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:29:31,992 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:29:31,992 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:29:31,992 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-12-02 13:29:31,992 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-12-02 13:29:31,992 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_9104589a-e493-4151-a129-fa96e0156815/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 -> da22ffb72429307957b6c0c7dbecd683a89e13ab06c6f4d1911b51bf365e4d9f [2024-12-02 13:29:32,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:29:32,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:29:32,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:29:32,220 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:29:32,221 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:29:32,222 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c [2024-12-02 13:29:34,875 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/data/6c4266566/a07623da86ea4e0982eeba0b440f7d56/FLAG73f9a8f93 [2024-12-02 13:29:35,059 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:29:35,059 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c [2024-12-02 13:29:35,067 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/data/6c4266566/a07623da86ea4e0982eeba0b440f7d56/FLAG73f9a8f93 [2024-12-02 13:29:35,082 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/data/6c4266566/a07623da86ea4e0982eeba0b440f7d56 [2024-12-02 13:29:35,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:29:35,086 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:29:35,088 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:29:35,088 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:29:35,093 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:29:35,093 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:29:35" (1/1) ... [2024-12-02 13:29:35,094 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ce5eacf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:35, skipping insertion in model container [2024-12-02 13:29:35,095 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:29:35" (1/1) ... [2024-12-02 13:29:35,109 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:29:35,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:29:35,259 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:29:35,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:29:35,286 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:29:35,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:35 WrapperNode [2024-12-02 13:29:35,287 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:29:35,288 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:29:35,288 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:29:35,288 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:29:35,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:35" (1/1) ... [2024-12-02 13:29:35,300 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:35" (1/1) ... [2024-12-02 13:29:35,316 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2024-12-02 13:29:35,316 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:29:35,317 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:29:35,317 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:29:35,317 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:29:35,326 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:35" (1/1) ... [2024-12-02 13:29:35,327 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:35" (1/1) ... [2024-12-02 13:29:35,327 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:35" (1/1) ... [2024-12-02 13:29:35,332 INFO L175 MemorySlicer]: No memory access in input program. [2024-12-02 13:29:35,333 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:35" (1/1) ... [2024-12-02 13:29:35,333 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:35" (1/1) ... [2024-12-02 13:29:35,334 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:35" (1/1) ... [2024-12-02 13:29:35,335 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:35" (1/1) ... [2024-12-02 13:29:35,339 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:35" (1/1) ... [2024-12-02 13:29:35,340 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:35" (1/1) ... [2024-12-02 13:29:35,341 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:35" (1/1) ... [2024-12-02 13:29:35,342 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:29:35,342 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:29:35,342 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:29:35,343 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:29:35,343 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:35" (1/1) ... [2024-12-02 13:29:35,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:35,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:35,379 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:35,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-12-02 13:29:35,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:29:35,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:29:35,494 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:29:35,497 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:29:35,558 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-12-02 13:29:35,558 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:29:35,567 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:29:35,567 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 13:29:35,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:29:35 BoogieIcfgContainer [2024-12-02 13:29:35,567 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:29:35,568 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-12-02 13:29:35,568 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-12-02 13:29:35,574 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-12-02 13:29:35,575 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 13:29:35,575 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 01:29:35" (1/3) ... [2024-12-02 13:29:35,576 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e6cd826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 01:29:35, skipping insertion in model container [2024-12-02 13:29:35,576 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 13:29:35,576 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:35" (2/3) ... [2024-12-02 13:29:35,576 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e6cd826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 01:29:35, skipping insertion in model container [2024-12-02 13:29:35,576 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 13:29:35,577 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:29:35" (3/3) ... [2024-12-02 13:29:35,578 INFO L363 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7a.c [2024-12-02 13:29:35,627 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-12-02 13:29:35,627 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-12-02 13:29:35,627 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-12-02 13:29:35,627 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-12-02 13:29:35,627 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-12-02 13:29:35,627 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-12-02 13:29:35,627 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-12-02 13:29:35,627 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-12-02 13:29:35,631 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:35,643 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-12-02 13:29:35,643 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:29:35,643 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:29:35,647 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 13:29:35,647 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-12-02 13:29:35,647 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-12-02 13:29:35,648 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:35,648 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-12-02 13:29:35,648 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:29:35,648 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:29:35,649 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 13:29:35,649 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-12-02 13:29:35,656 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" [2024-12-02 13:29:35,656 INFO L749 eck$LassoCheckResult]: Loop: "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" "havoc main_#t~nondet3#1;" "assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;havoc main_#t~nondet5#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1;" [2024-12-02 13:29:35,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:35,662 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-12-02 13:29:35,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:29:35,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357227321] [2024-12-02 13:29:35,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:35,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:35,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:35,725 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:29:35,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:35,738 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:29:35,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:35,742 INFO L85 PathProgramCache]: Analyzing trace with hash 37868, now seen corresponding path program 1 times [2024-12-02 13:29:35,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:29:35,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561731450] [2024-12-02 13:29:35,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:35,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:35,753 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:29:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:35,759 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:29:35,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:35,760 INFO L85 PathProgramCache]: Analyzing trace with hash 28696810, now seen corresponding path program 1 times [2024-12-02 13:29:35,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:29:35,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867569129] [2024-12-02 13:29:35,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:35,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:35,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:35,768 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:29:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:35,774 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:29:35,875 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 13:29:35,876 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 13:29:35,876 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 13:29:35,876 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 13:29:35,876 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 13:29:35,876 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:35,876 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 13:29:35,877 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 13:29:35,877 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration1_Loop [2024-12-02 13:29:35,877 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 13:29:35,877 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 13:29:35,889 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:35,902 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:35,908 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:35,912 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:35,916 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:35,925 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:35,930 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:36,012 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 13:29:36,013 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 13:29:36,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:36,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:36,017 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:36,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-12-02 13:29:36,019 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:29:36,020 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:36,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-12-02 13:29:36,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:36,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:36,048 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:36,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-12-02 13:29:36,050 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 13:29:36,050 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:36,079 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 13:29:36,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-12-02 13:29:36,082 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 13:29:36,082 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 13:29:36,082 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 13:29:36,082 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 13:29:36,082 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 13:29:36,082 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:36,082 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 13:29:36,082 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 13:29:36,082 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration1_Loop [2024-12-02 13:29:36,082 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 13:29:36,082 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 13:29:36,084 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:36,092 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:36,095 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:36,099 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:36,103 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:36,112 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:36,116 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:36,182 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 13:29:36,186 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 13:29:36,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:36,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:36,189 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:36,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-12-02 13:29:36,192 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 13:29:36,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:29:36,205 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 13:29:36,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:29:36,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:29:36,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:29:36,211 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 13:29:36,211 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 13:29:36,214 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 13:29:36,220 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 13:29:36,223 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-12-02 13:29:36,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:36,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:36,227 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:36,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-12-02 13:29:36,229 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 13:29:36,229 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 13:29:36,230 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 13:29:36,230 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~d~0#1) = 1*ULTIMATE.start_main_~d~0#1 Supporting invariants [] [2024-12-02 13:29:36,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-12-02 13:29:36,238 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 13:29:36,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:36,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:36,269 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:29:36,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:36,283 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:29:36,284 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:36,313 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 13:29:36,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-12-02 13:29:36,349 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 13:29:36,350 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:36,397 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 27 transitions. Complement of second has 6 states. [2024-12-02 13:29:36,398 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 13:29:36,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:36,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2024-12-02 13:29:36,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 2 letters. Loop has 3 letters. [2024-12-02 13:29:36,410 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:29:36,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 3 letters. [2024-12-02 13:29:36,410 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:29:36,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 2 letters. Loop has 6 letters. [2024-12-02 13:29:36,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:29:36,411 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 27 transitions. [2024-12-02 13:29:36,413 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-12-02 13:29:36,416 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 11 states and 14 transitions. [2024-12-02 13:29:36,417 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-12-02 13:29:36,417 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-12-02 13:29:36,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2024-12-02 13:29:36,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 13:29:36,418 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-12-02 13:29:36,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2024-12-02 13:29:36,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-12-02 13:29:36,435 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 13:29:36,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2024-12-02 13:29:36,436 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-12-02 13:29:36,436 INFO L425 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-12-02 13:29:36,437 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-12-02 13:29:36,437 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2024-12-02 13:29:36,437 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-12-02 13:29:36,437 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:29:36,437 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:29:36,437 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-12-02 13:29:36,437 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-12-02 13:29:36,438 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" "havoc main_#t~nondet3#1;" "assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet4#1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;" [2024-12-02 13:29:36,438 INFO L749 eck$LassoCheckResult]: Loop: "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" "havoc main_#t~nondet3#1;" "assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;havoc main_#t~nondet5#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1;" [2024-12-02 13:29:36,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:36,438 INFO L85 PathProgramCache]: Analyzing trace with hash 28696808, now seen corresponding path program 1 times [2024-12-02 13:29:36,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:29:36,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674849336] [2024-12-02 13:29:36,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:36,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:36,445 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:29:36,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:36,449 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:29:36,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:36,450 INFO L85 PathProgramCache]: Analyzing trace with hash 37868, now seen corresponding path program 2 times [2024-12-02 13:29:36,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:29:36,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143653971] [2024-12-02 13:29:36,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:36,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:36,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:36,456 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:29:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:36,460 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:29:36,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:36,461 INFO L85 PathProgramCache]: Analyzing trace with hash 208123301, now seen corresponding path program 1 times [2024-12-02 13:29:36,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:29:36,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894942417] [2024-12-02 13:29:36,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:36,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:36,470 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:29:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:36,477 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:29:36,521 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 13:29:36,521 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 13:29:36,521 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 13:29:36,521 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 13:29:36,521 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 13:29:36,521 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:36,521 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 13:29:36,521 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 13:29:36,521 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration2_Loop [2024-12-02 13:29:36,521 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 13:29:36,521 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 13:29:36,523 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:36,526 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:36,528 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:36,532 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:36,535 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:36,542 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:36,548 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:36,606 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 13:29:36,606 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 13:29:36,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:36,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:36,608 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:36,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-12-02 13:29:36,611 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:29:36,611 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:36,634 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:29:36,634 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 13:29:36,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-12-02 13:29:36,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:36,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:36,644 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:36,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-12-02 13:29:36,646 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:29:36,647 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:36,660 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:29:36,660 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=0} Honda state: {ULTIMATE.start_main_#t~nondet3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 13:29:36,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-12-02 13:29:36,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:36,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:36,668 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:36,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-12-02 13:29:36,670 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:29:36,670 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:36,693 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:29:36,693 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 13:29:36,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-12-02 13:29:36,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:36,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:36,700 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:36,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-12-02 13:29:36,703 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:29:36,703 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:36,722 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:29:36,723 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=1} Honda state: {ULTIMATE.start_main_~x~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 13:29:36,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-12-02 13:29:36,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:36,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:36,730 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:36,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-12-02 13:29:36,732 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:29:36,732 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:36,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-12-02 13:29:36,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:36,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:36,754 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:36,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-12-02 13:29:36,756 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 13:29:36,756 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:36,783 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 13:29:36,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-12-02 13:29:36,786 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 13:29:36,787 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 13:29:36,787 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 13:29:36,787 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 13:29:36,787 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 13:29:36,787 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:36,787 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 13:29:36,787 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 13:29:36,787 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration2_Loop [2024-12-02 13:29:36,787 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 13:29:36,787 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 13:29:36,789 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:36,792 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:36,794 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:36,800 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:36,803 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:36,807 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:36,815 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:36,873 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 13:29:36,873 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 13:29:36,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:36,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:36,875 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:36,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-12-02 13:29:36,878 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 13:29:36,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:29:36,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:29:36,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:29:36,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:29:36,896 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 13:29:36,896 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 13:29:36,901 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 13:29:36,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-12-02 13:29:36,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:36,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:36,912 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:36,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-12-02 13:29:36,915 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 13:29:36,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:29:36,931 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 13:29:36,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:29:36,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:29:36,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:29:36,931 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 13:29:36,932 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 13:29:36,934 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 13:29:36,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-12-02 13:29:36,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:36,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:36,945 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:36,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-12-02 13:29:36,948 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 13:29:36,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:29:36,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 13:29:36,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:29:36,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:29:36,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:29:36,962 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 13:29:36,962 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 13:29:36,964 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 13:29:36,967 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 13:29:36,967 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-12-02 13:29:36,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:36,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:36,969 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:36,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-12-02 13:29:36,971 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 13:29:36,971 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 13:29:36,971 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 13:29:36,971 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~d~0#1) = 1*ULTIMATE.start_main_~d~0#1 Supporting invariants [] [2024-12-02 13:29:36,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-12-02 13:29:36,978 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 13:29:36,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:37,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:37,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:29:37,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:37,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:37,014 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:29:37,015 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:37,038 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 13:29:37,039 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 13:29:37,040 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 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:37,057 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 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 22 transitions. Complement of second has 5 states. [2024-12-02 13:29:37,058 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 13:29:37,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:37,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-12-02 13:29:37,059 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 3 letters. [2024-12-02 13:29:37,060 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:29:37,060 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 3 letters. [2024-12-02 13:29:37,060 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:29:37,060 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 6 letters. [2024-12-02 13:29:37,060 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:29:37,060 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 22 transitions. [2024-12-02 13:29:37,061 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-12-02 13:29:37,061 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 22 transitions. [2024-12-02 13:29:37,061 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-12-02 13:29:37,062 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-12-02 13:29:37,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2024-12-02 13:29:37,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 13:29:37,062 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2024-12-02 13:29:37,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2024-12-02 13:29:37,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-12-02 13:29:37,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 16 states have internal predecessors, (22), 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 13:29:37,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2024-12-02 13:29:37,064 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2024-12-02 13:29:37,064 INFO L425 stractBuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2024-12-02 13:29:37,064 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-12-02 13:29:37,064 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2024-12-02 13:29:37,065 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-12-02 13:29:37,065 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:29:37,065 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:29:37,065 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1] [2024-12-02 13:29:37,065 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-12-02 13:29:37,065 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" "havoc main_#t~nondet3#1;" "assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet4#1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;" "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" "havoc main_#t~nondet3#1;" "assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet4#1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;" [2024-12-02 13:29:37,065 INFO L749 eck$LassoCheckResult]: Loop: "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" "havoc main_#t~nondet3#1;" "assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;havoc main_#t~nondet5#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1;" [2024-12-02 13:29:37,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:37,066 INFO L85 PathProgramCache]: Analyzing trace with hash 208123299, now seen corresponding path program 2 times [2024-12-02 13:29:37,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:29:37,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984124635] [2024-12-02 13:29:37,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:37,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:37,073 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:29:37,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:37,078 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:29:37,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:37,079 INFO L85 PathProgramCache]: Analyzing trace with hash 37868, now seen corresponding path program 3 times [2024-12-02 13:29:37,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:29:37,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310218309] [2024-12-02 13:29:37,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:37,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:37,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:37,084 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:29:37,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:37,087 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:29:37,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:37,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1731566838, now seen corresponding path program 2 times [2024-12-02 13:29:37,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:29:37,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420043249] [2024-12-02 13:29:37,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:37,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:37,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:37,096 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:29:37,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:37,102 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:29:37,147 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 13:29:37,147 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 13:29:37,147 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 13:29:37,147 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 13:29:37,147 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 13:29:37,147 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:37,147 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 13:29:37,147 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 13:29:37,147 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration3_Loop [2024-12-02 13:29:37,147 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 13:29:37,147 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 13:29:37,148 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:37,153 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:37,156 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:37,159 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:37,166 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:37,168 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:37,175 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:37,231 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 13:29:37,231 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 13:29:37,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:37,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:37,235 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:37,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-12-02 13:29:37,238 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:29:37,238 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:37,259 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:29:37,259 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=1} Honda state: {ULTIMATE.start_main_~x~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 13:29:37,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-12-02 13:29:37,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:37,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:37,266 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:37,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-12-02 13:29:37,269 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:29:37,269 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:37,288 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:29:37,288 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 13:29:37,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-12-02 13:29:37,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:37,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:37,296 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:37,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-12-02 13:29:37,298 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:29:37,298 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:37,311 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:29:37,311 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5#1=0} Honda state: {ULTIMATE.start_main_#t~nondet5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 13:29:37,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-12-02 13:29:37,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:37,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:37,319 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:37,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-12-02 13:29:37,321 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:29:37,321 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:37,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-12-02 13:29:37,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:37,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:37,341 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:37,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-12-02 13:29:37,344 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 13:29:37,344 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:37,369 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 13:29:37,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-12-02 13:29:37,372 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 13:29:37,372 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 13:29:37,372 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 13:29:37,373 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 13:29:37,373 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 13:29:37,373 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:37,373 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 13:29:37,373 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 13:29:37,373 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration3_Loop [2024-12-02 13:29:37,373 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 13:29:37,373 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 13:29:37,374 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:37,377 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:37,379 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:37,381 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:37,384 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:37,390 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:37,396 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:37,444 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 13:29:37,444 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 13:29:37,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:37,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:37,446 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:37,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-12-02 13:29:37,449 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 13:29:37,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:29:37,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 13:29:37,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:29:37,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:29:37,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:29:37,460 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 13:29:37,460 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 13:29:37,462 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 13:29:37,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-12-02 13:29:37,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:37,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:37,470 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:37,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-12-02 13:29:37,473 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 13:29:37,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:29:37,484 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 13:29:37,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:29:37,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:29:37,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:29:37,485 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 13:29:37,485 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 13:29:37,486 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 13:29:37,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-12-02 13:29:37,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:37,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:37,494 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:37,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-12-02 13:29:37,496 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 13:29:37,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:29:37,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 13:29:37,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:29:37,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:29:37,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:29:37,508 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 13:29:37,508 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 13:29:37,509 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 13:29:37,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-12-02 13:29:37,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:37,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:37,517 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:37,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-12-02 13:29:37,519 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 13:29:37,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:29:37,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:29:37,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:29:37,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:29:37,533 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 13:29:37,533 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 13:29:37,536 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 13:29:37,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-12-02 13:29:37,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:37,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:37,544 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:37,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-12-02 13:29:37,546 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 13:29:37,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:29:37,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 13:29:37,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:29:37,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:29:37,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:29:37,559 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 13:29:37,559 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 13:29:37,562 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 13:29:37,565 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 13:29:37,565 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-12-02 13:29:37,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:37,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:37,567 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:37,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-12-02 13:29:37,570 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 13:29:37,570 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 13:29:37,570 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 13:29:37,570 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~d~0#1) = 1*ULTIMATE.start_main_~d~0#1 Supporting invariants [] [2024-12-02 13:29:37,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-12-02 13:29:37,577 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 13:29:37,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:37,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:37,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:29:37,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:37,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:29:37,614 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:37,632 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 13:29:37,632 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 13:29:37,633 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 8 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 13:29:37,649 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 8. 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 21 states and 28 transitions. Complement of second has 5 states. [2024-12-02 13:29:37,649 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 13:29:37,650 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 13:29:37,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-12-02 13:29:37,651 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 3 letters. [2024-12-02 13:29:37,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:29:37,651 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 13:29:37,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:37,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-12-02 13:29:37,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-12-02 13:29:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:37,692 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:29:37,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:37,705 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:29:37,706 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:37,721 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 13:29:37,722 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 13:29:37,722 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 8 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 13:29:37,734 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 8. 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 21 states and 28 transitions. Complement of second has 5 states. [2024-12-02 13:29:37,734 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 13:29:37,735 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 13:29:37,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-12-02 13:29:37,735 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 3 letters. [2024-12-02 13:29:37,735 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:29:37,735 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 13:29:37,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:37,750 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:29:37,750 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:37,761 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:29:37,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:37,776 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 13:29:37,776 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 13:29:37,777 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 8 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 13:29:37,791 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 8. 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 24 states and 32 transitions. Complement of second has 4 states. [2024-12-02 13:29:37,791 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 13:29:37,792 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 13:29:37,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2024-12-02 13:29:37,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 3 letters. [2024-12-02 13:29:37,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:29:37,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 11 letters. Loop has 3 letters. [2024-12-02 13:29:37,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:29:37,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 6 letters. [2024-12-02 13:29:37,793 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:29:37,793 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 32 transitions. [2024-12-02 13:29:37,794 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-12-02 13:29:37,794 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 20 states and 26 transitions. [2024-12-02 13:29:37,795 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-12-02 13:29:37,795 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-12-02 13:29:37,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 26 transitions. [2024-12-02 13:29:37,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 13:29:37,795 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 26 transitions. [2024-12-02 13:29:37,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 26 transitions. [2024-12-02 13:29:37,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 8. [2024-12-02 13:29:37,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:37,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2024-12-02 13:29:37,796 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2024-12-02 13:29:37,796 INFO L425 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2024-12-02 13:29:37,796 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-12-02 13:29:37,796 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2024-12-02 13:29:37,797 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-12-02 13:29:37,797 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:29:37,797 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:29:37,797 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 13:29:37,797 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-12-02 13:29:37,797 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" [2024-12-02 13:29:37,797 INFO L749 eck$LassoCheckResult]: Loop: "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" "havoc main_#t~nondet3#1;" "assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet4#1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;" [2024-12-02 13:29:37,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:37,797 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-12-02 13:29:37,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:29:37,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973832108] [2024-12-02 13:29:37,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:37,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:37,801 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:29:37,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:37,802 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:29:37,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:37,803 INFO L85 PathProgramCache]: Analyzing trace with hash 37866, now seen corresponding path program 1 times [2024-12-02 13:29:37,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:29:37,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336209897] [2024-12-02 13:29:37,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:37,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:37,807 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:29:37,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:37,810 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:29:37,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:37,811 INFO L85 PathProgramCache]: Analyzing trace with hash 28696808, now seen corresponding path program 3 times [2024-12-02 13:29:37,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:29:37,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57454451] [2024-12-02 13:29:37,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:37,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:37,815 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:29:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:37,818 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:29:37,844 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 13:29:37,844 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 13:29:37,844 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 13:29:37,844 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 13:29:37,844 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 13:29:37,844 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:37,844 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 13:29:37,844 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 13:29:37,844 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration4_Loop [2024-12-02 13:29:37,844 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 13:29:37,844 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 13:29:37,845 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:37,848 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:37,851 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:37,853 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:37,855 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:37,858 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:37,864 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:37,905 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 13:29:37,905 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 13:29:37,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:37,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:37,907 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:37,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-12-02 13:29:37,909 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:29:37,909 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:37,928 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:29:37,928 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=1} Honda state: {ULTIMATE.start_main_~y~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 13:29:37,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-12-02 13:29:37,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:37,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:37,935 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:37,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-12-02 13:29:37,937 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:29:37,937 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:37,956 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:29:37,957 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~d~0#1=1} Honda state: {ULTIMATE.start_main_~d~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 13:29:37,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-12-02 13:29:37,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:37,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:37,964 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:37,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-12-02 13:29:37,966 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:29:37,966 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:37,979 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:29:37,979 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=0} Honda state: {ULTIMATE.start_main_#t~nondet3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 13:29:37,984 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-12-02 13:29:37,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:37,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:37,986 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:37,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-12-02 13:29:37,988 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:29:37,988 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:38,009 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:29:38,009 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 13:29:38,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-12-02 13:29:38,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:38,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:38,016 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:38,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-12-02 13:29:38,018 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:29:38,018 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:38,038 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:29:38,038 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 13:29:38,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-12-02 13:29:38,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:38,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:38,046 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:38,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-12-02 13:29:38,048 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:29:38,049 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:38,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-12-02 13:29:38,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:38,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:38,069 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:38,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-12-02 13:29:38,071 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 13:29:38,071 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:38,097 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 13:29:38,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-12-02 13:29:38,100 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 13:29:38,100 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 13:29:38,100 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 13:29:38,100 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 13:29:38,100 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 13:29:38,100 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:38,100 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 13:29:38,101 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 13:29:38,101 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration4_Loop [2024-12-02 13:29:38,101 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 13:29:38,101 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 13:29:38,102 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,104 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,107 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,109 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,112 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,117 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,118 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,148 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 13:29:38,148 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 13:29:38,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:38,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:38,150 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:38,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-12-02 13:29:38,152 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 13:29:38,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:29:38,163 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 13:29:38,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:29:38,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:29:38,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:29:38,164 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 13:29:38,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 13:29:38,165 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 13:29:38,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-12-02 13:29:38,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:38,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:38,176 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:38,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-12-02 13:29:38,178 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 13:29:38,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:29:38,189 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 13:29:38,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:29:38,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:29:38,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:29:38,190 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 13:29:38,190 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 13:29:38,191 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 13:29:38,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-12-02 13:29:38,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:38,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:38,198 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:38,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-12-02 13:29:38,201 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 13:29:38,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:29:38,215 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 13:29:38,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:29:38,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:29:38,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:29:38,216 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 13:29:38,216 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 13:29:38,218 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 13:29:38,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-12-02 13:29:38,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:38,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:38,225 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:38,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-12-02 13:29:38,227 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 13:29:38,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:29:38,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:29:38,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:29:38,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:29:38,241 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 13:29:38,241 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 13:29:38,245 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 13:29:38,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-12-02 13:29:38,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:38,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:38,255 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:38,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-12-02 13:29:38,257 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 13:29:38,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:29:38,269 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 13:29:38,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:29:38,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:29:38,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:29:38,270 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 13:29:38,270 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 13:29:38,272 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 13:29:38,274 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-12-02 13:29:38,274 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-12-02 13:29:38,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:38,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:38,276 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:38,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-12-02 13:29:38,279 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 13:29:38,279 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 13:29:38,279 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 13:29:38,279 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-12-02 13:29:38,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-12-02 13:29:38,285 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 13:29:38,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:38,300 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:29:38,300 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:38,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:38,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:29:38,307 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:38,326 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 13:29:38,326 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 13:29:38,326 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:38,338 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 18 states and 24 transitions. Complement of second has 5 states. [2024-12-02 13:29:38,339 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 13:29:38,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:38,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-12-02 13:29:38,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 3 letters. [2024-12-02 13:29:38,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:29:38,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 3 letters. [2024-12-02 13:29:38,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:29:38,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 6 letters. [2024-12-02 13:29:38,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:29:38,340 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 24 transitions. [2024-12-02 13:29:38,341 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-12-02 13:29:38,341 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 14 states and 18 transitions. [2024-12-02 13:29:38,341 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-12-02 13:29:38,341 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-12-02 13:29:38,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 18 transitions. [2024-12-02 13:29:38,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 13:29:38,341 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 18 transitions. [2024-12-02 13:29:38,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 18 transitions. [2024-12-02 13:29:38,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2024-12-02 13:29:38,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:38,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2024-12-02 13:29:38,342 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2024-12-02 13:29:38,342 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2024-12-02 13:29:38,342 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-12-02 13:29:38,343 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2024-12-02 13:29:38,343 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-12-02 13:29:38,343 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:29:38,343 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:29:38,344 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2024-12-02 13:29:38,344 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-12-02 13:29:38,344 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" "havoc main_#t~nondet3#1;" "assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;havoc main_#t~nondet5#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1;" "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" [2024-12-02 13:29:38,344 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet3#1;" "assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet4#1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;" "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" [2024-12-02 13:29:38,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:38,344 INFO L85 PathProgramCache]: Analyzing trace with hash 889601118, now seen corresponding path program 2 times [2024-12-02 13:29:38,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:29:38,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985188085] [2024-12-02 13:29:38,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:38,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:38,348 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:29:38,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:38,352 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:29:38,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:38,352 INFO L85 PathProgramCache]: Analyzing trace with hash 41796, now seen corresponding path program 2 times [2024-12-02 13:29:38,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:29:38,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473722163] [2024-12-02 13:29:38,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:38,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:38,355 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:29:38,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:38,358 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:29:38,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:38,359 INFO L85 PathProgramCache]: Analyzing trace with hash -2136265273, now seen corresponding path program 3 times [2024-12-02 13:29:38,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:29:38,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176556142] [2024-12-02 13:29:38,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:38,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:38,365 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:29:38,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:38,370 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:29:38,396 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 13:29:38,397 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 13:29:38,397 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 13:29:38,397 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 13:29:38,397 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 13:29:38,397 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:38,397 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 13:29:38,397 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 13:29:38,397 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration5_Loop [2024-12-02 13:29:38,397 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 13:29:38,397 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 13:29:38,398 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,403 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,406 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,408 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,411 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,413 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,416 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,457 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 13:29:38,457 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 13:29:38,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:38,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:38,459 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:38,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-12-02 13:29:38,462 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:29:38,462 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:38,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-12-02 13:29:38,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:38,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:38,481 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:38,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-12-02 13:29:38,483 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 13:29:38,483 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:38,523 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 13:29:38,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-12-02 13:29:38,526 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 13:29:38,526 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 13:29:38,526 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 13:29:38,526 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 13:29:38,526 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 13:29:38,526 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:38,526 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 13:29:38,526 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 13:29:38,526 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration5_Loop [2024-12-02 13:29:38,526 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 13:29:38,526 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 13:29:38,527 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,533 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,535 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,538 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,539 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,541 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,543 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,576 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 13:29:38,576 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 13:29:38,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:38,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:38,578 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:38,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-12-02 13:29:38,580 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 13:29:38,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:29:38,592 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 13:29:38,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:29:38,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:29:38,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:29:38,593 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 13:29:38,593 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 13:29:38,595 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 13:29:38,597 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-12-02 13:29:38,597 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-12-02 13:29:38,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:38,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:38,599 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:38,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-12-02 13:29:38,601 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 13:29:38,601 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 13:29:38,601 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 13:29:38,601 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-12-02 13:29:38,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-12-02 13:29:38,608 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 13:29:38,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:38,625 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:29:38,625 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:38,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:38,636 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:29:38,636 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:38,647 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 13:29:38,648 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 13:29:38,648 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 13:29:38,664 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 17 states and 21 transitions. Complement of second has 7 states. [2024-12-02 13:29:38,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-12-02 13:29:38,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 13:29:38,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2024-12-02 13:29:38,665 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 6 letters. Loop has 3 letters. [2024-12-02 13:29:38,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:29:38,665 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 13:29:38,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:38,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:38,680 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:29:38,681 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:38,692 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:29:38,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:38,703 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 13:29:38,703 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 13:29:38,704 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 13:29:38,716 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 17 states and 21 transitions. Complement of second has 7 states. [2024-12-02 13:29:38,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-12-02 13:29:38,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 13:29:38,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2024-12-02 13:29:38,718 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 6 letters. Loop has 3 letters. [2024-12-02 13:29:38,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:29:38,718 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 13:29:38,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:38,732 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:29:38,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:38,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:38,743 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:29:38,743 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:38,754 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 13:29:38,755 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 13:29:38,755 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 13:29:38,769 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 21 states and 26 transitions. Complement of second has 6 states. [2024-12-02 13:29:38,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-12-02 13:29:38,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 13:29:38,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2024-12-02 13:29:38,770 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 3 letters. [2024-12-02 13:29:38,770 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:29:38,770 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 9 letters. Loop has 3 letters. [2024-12-02 13:29:38,770 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:29:38,770 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 6 letters. [2024-12-02 13:29:38,770 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:29:38,770 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2024-12-02 13:29:38,771 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-12-02 13:29:38,771 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 15 states and 19 transitions. [2024-12-02 13:29:38,771 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2024-12-02 13:29:38,771 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2024-12-02 13:29:38,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2024-12-02 13:29:38,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 13:29:38,772 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 19 transitions. [2024-12-02 13:29:38,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2024-12-02 13:29:38,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 10. [2024-12-02 13:29:38,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 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 13:29:38,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2024-12-02 13:29:38,773 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2024-12-02 13:29:38,773 INFO L425 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2024-12-02 13:29:38,773 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-12-02 13:29:38,773 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2024-12-02 13:29:38,773 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-12-02 13:29:38,773 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:29:38,773 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:29:38,774 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2024-12-02 13:29:38,774 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1] [2024-12-02 13:29:38,774 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" "havoc main_#t~nondet3#1;" "assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;havoc main_#t~nondet5#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1;" "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" [2024-12-02 13:29:38,774 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet3#1;" "assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet4#1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;" "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" "havoc main_#t~nondet3#1;" "assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;havoc main_#t~nondet5#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1;" "assume (main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0;" [2024-12-02 13:29:38,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:38,774 INFO L85 PathProgramCache]: Analyzing trace with hash 889601118, now seen corresponding path program 3 times [2024-12-02 13:29:38,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:29:38,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852514111] [2024-12-02 13:29:38,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:38,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:38,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:38,779 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:29:38,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:38,786 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:29:38,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:38,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1245156703, now seen corresponding path program 1 times [2024-12-02 13:29:38,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:29:38,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698835933] [2024-12-02 13:29:38,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:38,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:38,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2024-12-02 13:29:38,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:38,792 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:29:38,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:38,796 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:29:38,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-12-02 13:29:38,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:38,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1346656252, now seen corresponding path program 4 times [2024-12-02 13:29:38,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:29:38,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700961131] [2024-12-02 13:29:38,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:29:38,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:29:38,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:38,804 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:29:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:29:38,811 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:29:38,856 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 13:29:38,856 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 13:29:38,857 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 13:29:38,857 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 13:29:38,857 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 13:29:38,857 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:38,857 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 13:29:38,857 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 13:29:38,857 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration6_Loop [2024-12-02 13:29:38,857 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 13:29:38,857 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 13:29:38,858 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,862 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,864 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,866 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,871 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,873 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,874 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,876 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:38,916 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 13:29:38,916 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 13:29:38,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:38,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:38,917 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:38,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-12-02 13:29:38,919 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:29:38,919 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:38,932 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:29:38,932 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=2} Honda state: {ULTIMATE.start_main_~x~0#1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 13:29:38,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2024-12-02 13:29:38,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:38,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:38,939 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:38,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-12-02 13:29:38,941 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:29:38,941 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:38,957 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:29:38,957 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=0} Honda state: {ULTIMATE.start_main_#t~nondet3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 13:29:38,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2024-12-02 13:29:38,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:38,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:38,964 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:38,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-12-02 13:29:38,966 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:29:38,966 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:38,987 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 13:29:38,987 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 13:29:38,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2024-12-02 13:29:38,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:38,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:38,995 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:38,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-12-02 13:29:38,998 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 13:29:38,998 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:39,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2024-12-02 13:29:39,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:39,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:39,018 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:39,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-12-02 13:29:39,020 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 13:29:39,020 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 13:29:39,070 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 13:29:39,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2024-12-02 13:29:39,073 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 13:29:39,073 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 13:29:39,073 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 13:29:39,073 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 13:29:39,073 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 13:29:39,073 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:39,073 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 13:29:39,073 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 13:29:39,073 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration6_Loop [2024-12-02 13:29:39,073 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 13:29:39,073 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 13:29:39,074 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:39,078 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:39,083 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:39,085 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:39,087 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:39,088 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:39,090 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:39,092 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 13:29:39,130 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 13:29:39,130 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 13:29:39,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:39,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:39,132 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:39,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-12-02 13:29:39,134 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 13:29:39,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:29:39,145 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 13:29:39,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:29:39,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:29:39,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:29:39,146 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 13:29:39,146 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 13:29:39,148 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 13:29:39,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2024-12-02 13:29:39,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:39,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:39,155 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:39,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-12-02 13:29:39,157 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 13:29:39,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 13:29:39,169 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 13:29:39,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 13:29:39,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 13:29:39,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 13:29:39,170 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 13:29:39,170 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 13:29:39,172 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 13:29:39,174 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-12-02 13:29:39,174 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-12-02 13:29:39,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:29:39,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:29:39,176 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:29:39,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-12-02 13:29:39,178 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 13:29:39,178 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 13:29:39,178 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 13:29:39,178 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-12-02 13:29:39,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2024-12-02 13:29:39,184 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 13:29:39,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:29:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:39,201 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:29:39,201 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:29:39,213 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:29:39,213 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:29:39,226 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 13:29:39,226 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 13:29:39,226 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:39,239 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 38 transitions. Complement of second has 6 states. [2024-12-02 13:29:39,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-12-02 13:29:39,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:29:39,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2024-12-02 13:29:39,240 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 6 letters. Loop has 6 letters. [2024-12-02 13:29:39,241 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:29:39,241 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 12 letters. Loop has 6 letters. [2024-12-02 13:29:39,241 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:29:39,241 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 6 letters. Loop has 12 letters. [2024-12-02 13:29:39,241 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 13:29:39,241 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 38 transitions. [2024-12-02 13:29:39,242 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-12-02 13:29:39,242 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2024-12-02 13:29:39,242 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-12-02 13:29:39,242 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-12-02 13:29:39,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-12-02 13:29:39,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 13:29:39,242 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 13:29:39,242 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 13:29:39,242 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 13:29:39,242 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-12-02 13:29:39,242 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-12-02 13:29:39,242 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-12-02 13:29:39,242 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-12-02 13:29:39,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 01:29:39 BoogieIcfgContainer [2024-12-02 13:29:39,250 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-12-02 13:29:39,250 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 13:29:39,250 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 13:29:39,250 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 13:29:39,251 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:29:35" (3/4) ... [2024-12-02 13:29:39,252 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 13:29:39,253 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 13:29:39,253 INFO L158 Benchmark]: Toolchain (without parser) took 4167.25ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 63.0MB in the end (delta: 30.0MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2024-12-02 13:29:39,254 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:29:39,254 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.81ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 83.0MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:29:39,254 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.26ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 82.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:29:39,254 INFO L158 Benchmark]: Boogie Preprocessor took 24.89ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 81.1MB in the end (delta: 837.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:29:39,255 INFO L158 Benchmark]: RCFGBuilder took 225.16ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 72.6MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:29:39,255 INFO L158 Benchmark]: BuchiAutomizer took 3681.58ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 63.0MB in the end (delta: 9.4MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2024-12-02 13:29:39,255 INFO L158 Benchmark]: Witness Printer took 2.69ms. Allocated memory is still 117.4MB. Free memory was 63.0MB in the beginning and 63.0MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:29:39,257 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 199.81ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 83.0MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.26ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 82.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.89ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 81.1MB in the end (delta: 837.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 225.16ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 72.6MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3681.58ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 63.0MB in the end (delta: 9.4MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * Witness Printer took 2.69ms. Allocated memory is still 117.4MB. Free memory was 63.0MB in the beginning and 63.0MB 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 6 terminating modules (0 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function d and consists of 4 locations. One deterministic module has affine ranking function d and consists of 3 locations. One deterministic module has affine ranking function x and consists of 3 locations. One deterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function d and consists of 3 locations. One nondeterministic module has affine ranking function x and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.6s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 2.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 3 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 [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 3/3 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 61 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51 mSDsluCounter, 77 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 58 IncrementalHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 63 mSDtfsCounter, 58 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax164 hnf100 lsp32 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 15 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s 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 13:29:39,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2024-12-02 13:29:39,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9104589a-e493-4151-a129-fa96e0156815/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