./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU --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 172ac4fa0310d14c59d9149bc1b8ec1548860e0b827250d611bfd9d710019753 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:14:47,038 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:14:47,135 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-31 22:14:47,141 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:14:47,143 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:14:47,182 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:14:47,183 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:14:47,183 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:14:47,184 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:14:47,186 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:14:47,187 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:14:47,187 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:14:47,188 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:14:47,188 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:14:47,190 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:14:47,191 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:14:47,191 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:14:47,192 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:14:47,192 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:14:47,193 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:14:47,193 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:14:47,197 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:14:47,198 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:14:47,198 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:14:47,198 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:14:47,199 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:14:47,199 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:14:47,199 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:14:47,200 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:14:47,200 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:14:47,200 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:14:47,201 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:14:47,203 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:14:47,204 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:14:47,204 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:14:47,205 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:14:47,205 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 172ac4fa0310d14c59d9149bc1b8ec1548860e0b827250d611bfd9d710019753 [2024-10-31 22:14:47,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:14:47,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:14:47,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:14:47,556 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:14:47,557 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:14:47,560 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c Unable to find full path for "g++" [2024-10-31 22:14:50,016 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:14:50,212 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:14:50,213 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c [2024-10-31 22:14:50,222 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/data/1b6f40860/198da5a1ccb04c48999fc12f3ba2d041/FLAGe7392ad39 [2024-10-31 22:14:50,251 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/data/1b6f40860/198da5a1ccb04c48999fc12f3ba2d041 [2024-10-31 22:14:50,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:14:50,256 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:14:50,257 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:14:50,257 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:14:50,266 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:14:50,267 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:14:50" (1/1) ... [2024-10-31 22:14:50,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3987fe2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:50, skipping insertion in model container [2024-10-31 22:14:50,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:14:50" (1/1) ... [2024-10-31 22:14:50,294 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:14:50,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:14:50,485 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:14:50,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:14:50,511 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:14:50,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:50 WrapperNode [2024-10-31 22:14:50,512 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:14:50,513 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:14:50,514 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:14:50,514 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:14:50,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:50" (1/1) ... [2024-10-31 22:14:50,527 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:50" (1/1) ... [2024-10-31 22:14:50,544 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2024-10-31 22:14:50,545 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:14:50,546 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:14:50,547 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:14:50,548 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:14:50,561 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:50" (1/1) ... [2024-10-31 22:14:50,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:50" (1/1) ... [2024-10-31 22:14:50,562 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:50" (1/1) ... [2024-10-31 22:14:50,568 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-31 22:14:50,569 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:50" (1/1) ... [2024-10-31 22:14:50,569 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:50" (1/1) ... [2024-10-31 22:14:50,571 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:50" (1/1) ... [2024-10-31 22:14:50,574 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:50" (1/1) ... [2024-10-31 22:14:50,575 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:50" (1/1) ... [2024-10-31 22:14:50,576 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:50" (1/1) ... [2024-10-31 22:14:50,577 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:14:50,578 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:14:50,578 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:14:50,578 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:14:50,579 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:50" (1/1) ... [2024-10-31 22:14:50,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:50,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:50,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:50,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:14:50,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:14:50,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:14:50,774 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:14:50,777 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:14:50,887 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-10-31 22:14:50,888 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:14:50,904 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:14:50,905 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:14:50,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:14:50 BoogieIcfgContainer [2024-10-31 22:14:50,906 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:14:50,908 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:14:50,908 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:14:50,913 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:14:50,914 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:14:50,914 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:14:50" (1/3) ... [2024-10-31 22:14:50,915 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@190825fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:14:50, skipping insertion in model container [2024-10-31 22:14:50,916 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:14:50,916 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:50" (2/3) ... [2024-10-31 22:14:50,917 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@190825fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:14:50, skipping insertion in model container [2024-10-31 22:14:50,918 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:14:50,919 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:14:50" (3/3) ... [2024-10-31 22:14:50,920 INFO L332 chiAutomizerObserver]: Analyzing ICFG BrockschmidtCookFuhs-CAV2013-Fig9a.c [2024-10-31 22:14:51,004 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:14:51,005 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:14:51,005 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:14:51,005 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:14:51,005 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:14:51,006 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:14:51,006 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:14:51,007 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:14:51,013 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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) [2024-10-31 22:14:51,036 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-31 22:14:51,036 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:14:51,037 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:14:51,043 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-31 22:14:51,044 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:14:51,044 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:14:51,044 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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) [2024-10-31 22:14:51,046 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-31 22:14:51,047 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:14:51,048 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:14:51,048 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-31 22:14:51,048 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:14:51,057 INFO L745 eck$LassoCheckResult]: Stem: 5#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~k~0#1, main_~i~0#1, main_~j~0#1, main_~n~0#1;havoc main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~i~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~j~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 10#L20true assume main_~k~0#1 >= 1;main_~i~0#1 := 0; 8#L22-2true [2024-10-31 22:14:51,058 INFO L747 eck$LassoCheckResult]: Loop: 8#L22-2true assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 3#L24-2true assume !(main_~j~0#1 <= main_~i~0#1); 9#L24-3true main_~i~0#1 := 1 + main_~i~0#1; 8#L22-2true [2024-10-31 22:14:51,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:51,066 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-10-31 22:14:51,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:51,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502315261] [2024-10-31 22:14:51,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:51,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:51,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:51,192 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:51,220 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:51,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:51,224 INFO L85 PathProgramCache]: Analyzing trace with hash 43923, now seen corresponding path program 1 times [2024-10-31 22:14:51,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:51,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224418177] [2024-10-31 22:14:51,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:51,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:51,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:51,243 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:51,254 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:51,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:51,259 INFO L85 PathProgramCache]: Analyzing trace with hash 889513810, now seen corresponding path program 1 times [2024-10-31 22:14:51,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:51,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083069759] [2024-10-31 22:14:51,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:51,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:51,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:51,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:51,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:51,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083069759] [2024-10-31 22:14:51,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083069759] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:51,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:51,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:14:51,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870841287] [2024-10-31 22:14:51,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:51,498 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:14:51,498 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:14:51,499 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:14:51,499 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:14:51,499 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:14:51,500 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:51,500 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:14:51,500 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:14:51,500 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration1_Loop [2024-10-31 22:14:51,500 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:14:51,501 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:14:51,520 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:51,536 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:51,541 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:51,564 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:51,658 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:14:51,658 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:14:51,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:51,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:51,663 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:51,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-31 22:14:51,666 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:51,667 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:51,694 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:14:51,694 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:14:51,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-31 22:14:51,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:51,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:51,716 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:51,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-31 22:14:51,721 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:51,721 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:51,747 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:14:51,748 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:14:51,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-10-31 22:14:51,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:51,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:51,770 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:51,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 22:14:51,775 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:51,776 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:51,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-31 22:14:51,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:51,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:51,816 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:51,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 22:14:51,820 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:14:51,820 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:51,872 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:14:51,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:51,878 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:14:51,878 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:14:51,879 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:14:51,879 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:14:51,879 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:14:51,879 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:51,879 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:14:51,880 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:14:51,880 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration1_Loop [2024-10-31 22:14:51,880 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:14:51,881 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:14:51,883 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:51,894 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:51,907 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:51,912 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:51,971 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:14:51,976 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:14:51,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:51,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:51,980 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:51,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 22:14:51,982 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 [2024-10-31 22:14:51,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:51,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:51,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:51,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:52,003 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:14:52,003 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:14:52,010 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:14:52,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:52,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:52,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:52,032 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:52,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 22:14:52,035 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 [2024-10-31 22:14:52,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:52,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:14:52,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:52,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:52,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:52,051 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:14:52,051 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:14:52,057 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:14:52,063 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:14:52,063 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:14:52,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:52,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:52,082 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:52,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 22:14:52,085 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:14:52,086 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:14:52,086 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:14:52,087 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-10-31 22:14:52,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-31 22:14:52,109 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:14:52,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:52,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:52,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:52,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:52,197 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:14:52,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:52,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:52,332 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-31 22:14:52,335 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:52,433 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32 states and 48 transitions. Complement of second has 10 states. [2024-10-31 22:14:52,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-10-31 22:14:52,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:52,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 29 transitions. [2024-10-31 22:14:52,442 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 3 letters. Loop has 3 letters. [2024-10-31 22:14:52,443 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:52,443 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 6 letters. Loop has 3 letters. [2024-10-31 22:14:52,443 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:52,443 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 3 letters. Loop has 6 letters. [2024-10-31 22:14:52,444 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:52,445 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 48 transitions. [2024-10-31 22:14:52,447 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:14:52,451 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 15 states and 20 transitions. [2024-10-31 22:14:52,452 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-10-31 22:14:52,452 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-10-31 22:14:52,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2024-10-31 22:14:52,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:14:52,453 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2024-10-31 22:14:52,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2024-10-31 22:14:52,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2024-10-31 22:14:52,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 13 states have internal predecessors, (19), 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) [2024-10-31 22:14:52,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2024-10-31 22:14:52,481 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2024-10-31 22:14:52,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:52,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:14:52,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:14:52,485 INFO L87 Difference]: Start difference. First operand 14 states and 19 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:52,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:52,522 INFO L93 Difference]: Finished difference Result 12 states and 15 transitions. [2024-10-31 22:14:52,523 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions. [2024-10-31 22:14:52,523 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:14:52,524 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 9 transitions. [2024-10-31 22:14:52,524 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-10-31 22:14:52,524 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-10-31 22:14:52,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2024-10-31 22:14:52,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:14:52,525 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 9 transitions. [2024-10-31 22:14:52,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2024-10-31 22:14:52,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2024-10-31 22:14:52,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 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) [2024-10-31 22:14:52,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2024-10-31 22:14:52,527 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2024-10-31 22:14:52,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:14:52,529 INFO L425 stractBuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2024-10-31 22:14:52,529 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 22:14:52,529 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2024-10-31 22:14:52,529 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:14:52,530 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:14:52,530 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:14:52,530 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-31 22:14:52,530 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 22:14:52,531 INFO L745 eck$LassoCheckResult]: Stem: 123#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 124#L-1 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_~k~0#1, main_~i~0#1, main_~j~0#1, main_~n~0#1;havoc main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~i~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~j~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 127#L20 assume main_~k~0#1 >= 1;main_~i~0#1 := 0; 126#L22-2 [2024-10-31 22:14:52,531 INFO L747 eck$LassoCheckResult]: Loop: 126#L22-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 121#L24-2 assume !!(main_~j~0#1 <= main_~i~0#1);main_~j~0#1 := main_~j~0#1 + main_~k~0#1; 122#L24-2 assume !(main_~j~0#1 <= main_~i~0#1); 125#L24-3 main_~i~0#1 := 1 + main_~i~0#1; 126#L22-2 [2024-10-31 22:14:52,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:52,532 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 2 times [2024-10-31 22:14:52,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:52,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257922544] [2024-10-31 22:14:52,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:52,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:52,539 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:52,543 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:52,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:52,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1363376, now seen corresponding path program 1 times [2024-10-31 22:14:52,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:52,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103428423] [2024-10-31 22:14:52,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:52,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:52,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:52,555 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:52,562 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:52,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:52,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1805126097, now seen corresponding path program 1 times [2024-10-31 22:14:52,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:52,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60576279] [2024-10-31 22:14:52,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:52,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:52,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:52,574 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:52,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:52,583 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:52,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:52,685 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:14:52,685 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:14:52,685 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:14:52,686 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:14:52,686 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:14:52,686 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:52,686 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:14:52,686 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:14:52,686 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration2_Loop [2024-10-31 22:14:52,687 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:14:52,687 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:14:52,688 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:52,693 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:52,709 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:52,713 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:52,777 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:14:52,777 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:14:52,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:52,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:52,780 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:52,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 22:14:52,783 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:52,783 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:52,811 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:14:52,811 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: [] [2024-10-31 22:14:52,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:52,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:52,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:52,834 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:52,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-31 22:14:52,837 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:52,837 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:52,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-10-31 22:14:52,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:52,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:52,878 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:52,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 22:14:52,881 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:14:52,881 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:52,984 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:14:52,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-10-31 22:14:52,990 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:14:52,990 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:14:52,990 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:14:52,990 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:14:52,990 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:14:52,990 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:52,990 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:14:52,990 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:14:52,991 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration2_Loop [2024-10-31 22:14:52,991 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:14:52,991 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:14:52,992 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:53,005 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:53,010 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:53,014 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:53,084 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:14:53,084 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:14:53,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:53,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:53,087 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:53,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-31 22:14:53,091 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 [2024-10-31 22:14:53,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:53,108 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:14:53,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:53,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:53,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:53,110 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:14:53,110 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:14:53,113 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:14:53,118 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:14:53,118 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:14:53,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:53,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:53,121 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:53,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-31 22:14:53,123 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:14:53,123 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:14:53,124 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:14:53,124 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~k~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~k~0#1 Supporting invariants [] [2024-10-31 22:14:53,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:53,146 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:14:53,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:53,180 INFO L255 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:53,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:53,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:53,196 WARN L253 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:14:53,196 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:53,294 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:53,294 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2024-10-31 22:14:53,296 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:53,382 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 18 states and 23 transitions. Complement of second has 10 states. [2024-10-31 22:14:53,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2024-10-31 22:14:53,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:53,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 12 transitions. [2024-10-31 22:14:53,385 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 3 letters. Loop has 4 letters. [2024-10-31 22:14:53,385 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:53,385 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 7 letters. Loop has 4 letters. [2024-10-31 22:14:53,385 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:53,385 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 3 letters. Loop has 8 letters. [2024-10-31 22:14:53,386 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:53,386 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2024-10-31 22:14:53,387 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:14:53,387 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 17 states and 22 transitions. [2024-10-31 22:14:53,388 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-10-31 22:14:53,388 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-10-31 22:14:53,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2024-10-31 22:14:53,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:14:53,388 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2024-10-31 22:14:53,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2024-10-31 22:14:53,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2024-10-31 22:14:53,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.3125) internal successors, (21), 15 states have internal predecessors, (21), 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) [2024-10-31 22:14:53,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2024-10-31 22:14:53,392 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 21 transitions. [2024-10-31 22:14:53,393 INFO L425 stractBuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2024-10-31 22:14:53,393 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 22:14:53,393 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2024-10-31 22:14:53,394 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:14:53,394 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:14:53,395 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:14:53,395 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-31 22:14:53,395 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1] [2024-10-31 22:14:53,395 INFO L745 eck$LassoCheckResult]: Stem: 201#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 202#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~k~0#1, main_~i~0#1, main_~j~0#1, main_~n~0#1;havoc main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~i~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~j~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 207#L20 assume main_~k~0#1 >= 1;main_~i~0#1 := 0; 208#L22-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 197#L24-2 [2024-10-31 22:14:53,396 INFO L747 eck$LassoCheckResult]: Loop: 197#L24-2 assume !!(main_~j~0#1 <= main_~i~0#1);main_~j~0#1 := main_~j~0#1 + main_~k~0#1; 198#L24-2 assume !!(main_~j~0#1 <= main_~i~0#1);main_~j~0#1 := main_~j~0#1 + main_~k~0#1; 209#L24-2 assume !(main_~j~0#1 <= main_~i~0#1); 203#L24-3 main_~i~0#1 := 1 + main_~i~0#1; 204#L22-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 197#L24-2 [2024-10-31 22:14:53,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:53,397 INFO L85 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2024-10-31 22:14:53,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:53,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455657351] [2024-10-31 22:14:53,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:53,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:53,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:53,409 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:53,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:53,422 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:53,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:53,422 INFO L85 PathProgramCache]: Analyzing trace with hash 50576359, now seen corresponding path program 2 times [2024-10-31 22:14:53,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:53,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694808879] [2024-10-31 22:14:53,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:53,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:53,439 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:53,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:53,453 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:53,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:53,458 INFO L85 PathProgramCache]: Analyzing trace with hash -440553700, now seen corresponding path program 2 times [2024-10-31 22:14:53,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:53,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737675407] [2024-10-31 22:14:53,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:53,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:53,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:53,582 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:53,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:53,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737675407] [2024-10-31 22:14:53,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737675407] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:53,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754390619] [2024-10-31 22:14:53,583 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:14:53,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:53,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:53,586 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:53,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-31 22:14:53,626 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:14:53,626 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:14:53,627 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:14:53,628 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:53,715 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:53,716 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:14:53,761 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:53,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754390619] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:14:53,762 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:14:53,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-10-31 22:14:53,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815707885] [2024-10-31 22:14:53,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:14:53,848 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:14:53,848 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:14:53,848 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:14:53,848 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:14:53,848 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:14:53,848 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:53,848 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:14:53,849 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:14:53,849 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration3_Loop [2024-10-31 22:14:53,849 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:14:53,849 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:14:53,850 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:53,867 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:53,871 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:53,931 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:14:53,931 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:14:53,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:53,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:53,934 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:53,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-31 22:14:53,936 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:53,936 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:53,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:53,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:53,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:53,970 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:53,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-31 22:14:53,972 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:14:53,972 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:54,193 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:14:54,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:54,197 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:14:54,198 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:14:54,198 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:14:54,198 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:14:54,198 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:14:54,198 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:54,198 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:14:54,198 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:14:54,198 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration3_Loop [2024-10-31 22:14:54,198 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:14:54,198 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:14:54,200 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:54,216 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:54,220 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:54,280 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:14:54,280 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:14:54,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:54,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:54,282 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:54,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-31 22:14:54,285 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 [2024-10-31 22:14:54,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:54,300 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:14:54,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:54,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:54,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:54,306 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:14:54,306 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:14:54,313 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:14:54,317 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:14:54,318 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:14:54,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:54,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:54,320 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:54,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-31 22:14:54,322 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:14:54,323 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:14:54,323 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:14:54,323 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2024-10-31 22:14:54,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:54,343 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:14:54,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:54,367 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:54,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:54,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:14:54,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:54,406 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:14:54,407 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 [2024-10-31 22:14:54,407 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 7 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) [2024-10-31 22:14:54,437 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 7. 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 27 states and 35 transitions. Complement of second has 6 states. [2024-10-31 22:14:54,438 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 [2024-10-31 22:14:54,438 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) [2024-10-31 22:14:54,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2024-10-31 22:14:54,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 4 letters. Loop has 5 letters. [2024-10-31 22:14:54,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:54,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 5 letters. [2024-10-31 22:14:54,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:54,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 4 letters. Loop has 10 letters. [2024-10-31 22:14:54,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:54,441 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 35 transitions. [2024-10-31 22:14:54,442 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-10-31 22:14:54,442 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 19 states and 26 transitions. [2024-10-31 22:14:54,442 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-10-31 22:14:54,443 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-10-31 22:14:54,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2024-10-31 22:14:54,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:14:54,443 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 26 transitions. [2024-10-31 22:14:54,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2024-10-31 22:14:54,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2024-10-31 22:14:54,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 17 states have internal predecessors, (25), 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) [2024-10-31 22:14:54,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2024-10-31 22:14:54,446 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 25 transitions. [2024-10-31 22:14:54,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:54,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:14:54,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:14:54,447 INFO L87 Difference]: Start difference. First operand 18 states and 25 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 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) [2024-10-31 22:14:54,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:54,501 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2024-10-31 22:14:54,501 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 30 transitions. [2024-10-31 22:14:54,502 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-10-31 22:14:54,503 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 21 states and 27 transitions. [2024-10-31 22:14:54,503 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-10-31 22:14:54,503 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-10-31 22:14:54,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 27 transitions. [2024-10-31 22:14:54,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:14:54,504 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 27 transitions. [2024-10-31 22:14:54,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 27 transitions. [2024-10-31 22:14:54,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2024-10-31 22:14:54,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.3) internal successors, (26), 19 states have internal predecessors, (26), 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) [2024-10-31 22:14:54,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2024-10-31 22:14:54,506 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 26 transitions. [2024-10-31 22:14:54,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:14:54,507 INFO L425 stractBuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2024-10-31 22:14:54,508 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 22:14:54,508 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2024-10-31 22:14:54,509 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-10-31 22:14:54,509 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:14:54,509 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:14:54,509 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2024-10-31 22:14:54,509 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-10-31 22:14:54,509 INFO L745 eck$LassoCheckResult]: Stem: 390#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 391#L-1 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_~k~0#1, main_~i~0#1, main_~j~0#1, main_~n~0#1;havoc main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~i~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~j~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 396#L20 assume main_~k~0#1 >= 1;main_~i~0#1 := 0; 392#L22-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 393#L24-2 assume !!(main_~j~0#1 <= main_~i~0#1);main_~j~0#1 := main_~j~0#1 + main_~k~0#1; 388#L24-2 assume !(main_~j~0#1 <= main_~i~0#1); 389#L24-3 main_~i~0#1 := 1 + main_~i~0#1; 400#L22-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 401#L24-2 assume !!(main_~j~0#1 <= main_~i~0#1);main_~j~0#1 := main_~j~0#1 + main_~k~0#1; 387#L24-2 [2024-10-31 22:14:54,510 INFO L747 eck$LassoCheckResult]: Loop: 387#L24-2 assume !!(main_~j~0#1 <= main_~i~0#1);main_~j~0#1 := main_~j~0#1 + main_~k~0#1; 387#L24-2 [2024-10-31 22:14:54,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:54,510 INFO L85 PathProgramCache]: Analyzing trace with hash -440607910, now seen corresponding path program 3 times [2024-10-31 22:14:54,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:54,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777265416] [2024-10-31 22:14:54,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:54,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:54,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:54,524 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:54,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:54,537 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:54,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:54,538 INFO L85 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 1 times [2024-10-31 22:14:54,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:54,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240028841] [2024-10-31 22:14:54,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:54,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:54,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:54,549 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:54,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:54,553 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:54,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:54,555 INFO L85 PathProgramCache]: Analyzing trace with hash -773943299, now seen corresponding path program 4 times [2024-10-31 22:14:54,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:54,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706927474] [2024-10-31 22:14:54,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:54,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:54,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:54,572 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:54,586 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:54,692 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:14:54,692 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:14:54,692 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:14:54,692 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:14:54,692 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:14:54,692 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:54,692 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:14:54,692 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:14:54,692 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration4_Lasso [2024-10-31 22:14:54,693 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:14:54,693 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:14:54,694 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:54,708 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:54,712 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:54,716 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:54,719 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:54,728 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:54,732 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:54,735 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:54,737 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:54,825 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:14:54,825 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:14:54,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:54,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:54,828 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:54,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-31 22:14:54,830 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:54,830 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:54,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-10-31 22:14:54,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:54,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:54,883 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:54,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-31 22:14:54,886 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:14:54,886 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:55,145 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:14:55,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:55,149 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:14:55,149 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:14:55,149 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:14:55,149 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:14:55,149 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:14:55,149 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:55,149 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:14:55,149 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:14:55,149 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration4_Lasso [2024-10-31 22:14:55,149 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:14:55,149 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:14:55,151 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:55,153 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:55,156 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:55,159 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:55,162 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:55,165 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:55,167 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:55,173 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:55,186 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:55,269 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:14:55,269 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:14:55,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:55,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:55,272 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:55,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-31 22:14:55,274 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 [2024-10-31 22:14:55,288 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:55,288 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:14:55,289 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:55,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:55,289 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:55,289 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:14:55,290 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:14:55,294 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:14:55,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:55,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:55,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:55,315 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:55,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-31 22:14:55,318 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 [2024-10-31 22:14:55,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:55,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:55,333 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:55,333 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:55,337 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:14:55,337 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:14:55,341 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:14:55,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-10-31 22:14:55,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:55,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:55,362 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:55,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-31 22:14:55,365 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 [2024-10-31 22:14:55,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:55,380 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:14:55,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:55,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:55,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:55,381 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:14:55,381 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:14:55,383 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:14:55,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:55,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:55,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:55,404 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:55,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-31 22:14:55,406 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 [2024-10-31 22:14:55,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:55,420 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:14:55,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:55,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:55,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:55,421 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:14:55,421 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:14:55,423 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:14:55,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-10-31 22:14:55,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:55,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:55,443 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:55,446 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 [2024-10-31 22:14:55,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-31 22:14:55,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:55,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:55,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:55,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:55,473 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:14:55,473 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:14:55,478 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:14:55,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:55,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:55,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:55,503 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:55,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:55,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-31 22:14:55,515 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 [2024-10-31 22:14:55,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:55,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:55,535 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:14:55,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:55,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:55,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:55,536 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:14:55,536 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:14:55,538 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:14:55,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-10-31 22:14:55,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:55,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:55,560 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:55,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-31 22:14:55,563 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 [2024-10-31 22:14:55,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:55,577 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:14:55,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:55,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:55,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:55,578 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:14:55,578 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:14:55,580 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:14:55,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-10-31 22:14:55,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:55,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:55,600 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:55,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-31 22:14:55,606 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 [2024-10-31 22:14:55,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:55,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:55,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:55,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:55,624 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:14:55,625 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:14:55,633 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:14:55,644 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-10-31 22:14:55,644 INFO L444 ModelExtractionUtils]: 4 out of 13 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-10-31 22:14:55,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:55,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:55,647 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:55,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-10-31 22:14:55,648 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:14:55,662 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2024-10-31 22:14:55,662 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:14:55,662 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 3*ULTIMATE.start_main_~i~0#1 Supporting invariants [1*ULTIMATE.start_main_~k~0#1 - 1 >= 0, 1*ULTIMATE.start_main_~i~0#1 - 1 >= 0] [2024-10-31 22:14:55,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:55,680 INFO L156 tatePredicateManager]: 0 out of 2 supporting invariants were superfluous and have been removed [2024-10-31 22:14:55,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:55,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:55,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:14:55,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:55,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:55,816 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:14:55,817 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:55,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:55,817 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 1 loop predicates [2024-10-31 22:14:55,818 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 26 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2024-10-31 22:14:55,855 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 26 transitions. cyclomatic complexity: 9. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) Result 20 states and 26 transitions. Complement of second has 4 states. [2024-10-31 22:14:55,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2024-10-31 22:14:55,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2024-10-31 22:14:55,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-10-31 22:14:55,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 9 letters. Loop has 1 letters. [2024-10-31 22:14:55,857 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:55,857 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:14:55,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:55,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:14:55,895 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:55,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:55,971 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:14:55,971 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:55,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:55,972 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 1 loop predicates [2024-10-31 22:14:55,972 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 26 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2024-10-31 22:14:55,998 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 26 transitions. cyclomatic complexity: 9. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) Result 20 states and 26 transitions. Complement of second has 4 states. [2024-10-31 22:14:55,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2024-10-31 22:14:56,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2024-10-31 22:14:56,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-10-31 22:14:56,000 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 9 letters. Loop has 1 letters. [2024-10-31 22:14:56,000 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:56,000 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:14:56,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:56,043 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:14:56,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:56,126 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:14:56,127 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:56,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:56,127 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 1 loop predicates [2024-10-31 22:14:56,128 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 26 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2024-10-31 22:14:56,198 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 26 transitions. cyclomatic complexity: 9. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) Result 22 states and 28 transitions. Complement of second has 5 states. [2024-10-31 22:14:56,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 0 non-accepting loop states 2 accepting loop states [2024-10-31 22:14:56,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2024-10-31 22:14:56,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2024-10-31 22:14:56,199 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 9 letters. Loop has 1 letters. [2024-10-31 22:14:56,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:56,199 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 10 letters. Loop has 1 letters. [2024-10-31 22:14:56,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:56,199 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 9 letters. Loop has 2 letters. [2024-10-31 22:14:56,200 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:56,200 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 28 transitions. [2024-10-31 22:14:56,200 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:14:56,200 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2024-10-31 22:14:56,200 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-31 22:14:56,201 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-31 22:14:56,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-31 22:14:56,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:14:56,201 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:14:56,201 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:14:56,201 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:14:56,201 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-31 22:14:56,201 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-31 22:14:56,201 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:14:56,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-31 22:14:56,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 31.10 10:14:56 BoogieIcfgContainer [2024-10-31 22:14:56,214 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-31 22:14:56,215 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:14:56,215 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:14:56,215 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:14:56,216 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:14:50" (3/4) ... [2024-10-31 22:14:56,218 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 22:14:56,219 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:14:56,220 INFO L158 Benchmark]: Toolchain (without parser) took 5964.57ms. Allocated memory is still 188.7MB. Free memory was 148.6MB in the beginning and 115.6MB in the end (delta: 33.0MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. [2024-10-31 22:14:56,222 INFO L158 Benchmark]: CDTParser took 2.19ms. Allocated memory is still 188.7MB. Free memory is still 163.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:14:56,224 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.30ms. Allocated memory is still 188.7MB. Free memory was 148.2MB in the beginning and 137.2MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-31 22:14:56,225 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.39ms. Allocated memory is still 188.7MB. Free memory was 136.9MB in the beginning and 135.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:14:56,225 INFO L158 Benchmark]: Boogie Preprocessor took 30.55ms. Allocated memory is still 188.7MB. Free memory was 135.7MB in the beginning and 134.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:14:56,226 INFO L158 Benchmark]: RCFGBuilder took 328.33ms. Allocated memory is still 188.7MB. Free memory was 134.0MB in the beginning and 124.3MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-31 22:14:56,226 INFO L158 Benchmark]: BuchiAutomizer took 5306.33ms. Allocated memory is still 188.7MB. Free memory was 124.3MB in the beginning and 115.6MB in the end (delta: 8.7MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2024-10-31 22:14:56,227 INFO L158 Benchmark]: Witness Printer took 4.95ms. Allocated memory is still 188.7MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:14:56,230 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.19ms. Allocated memory is still 188.7MB. Free memory is still 163.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.30ms. Allocated memory is still 188.7MB. Free memory was 148.2MB in the beginning and 137.2MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.39ms. Allocated memory is still 188.7MB. Free memory was 136.9MB in the beginning and 135.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.55ms. Allocated memory is still 188.7MB. Free memory was 135.7MB in the beginning and 134.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 328.33ms. Allocated memory is still 188.7MB. Free memory was 134.0MB in the beginning and 124.3MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 5306.33ms. Allocated memory is still 188.7MB. Free memory was 124.3MB in the beginning and 115.6MB in the end (delta: 8.7MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * Witness Printer took 4.95ms. Allocated memory is still 188.7MB. Free memory is still 115.6MB. 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 (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function ((long) -1 * i) and consists of 6 locations. One deterministic module has affine ranking function (((long) -1 * i) + k) and consists of 6 locations. One deterministic module has affine ranking function (((long) -1 * i) + n) and consists of 4 locations. One nondeterministic module has affine ranking function (((long) -2 * j) + ((long) 3 * i)) and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.2s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.8s. Construction of modules took 0.1s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 5 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 [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 3/4 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 38 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 127 IncrementalHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 29 mSDtfsCounter, 127 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax156 hnf100 lsp61 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq143 hnf94 smp100 dnf100 smp100 tf105 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 33ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-31 22:14:56,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:56,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:56,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9263b68-a065-4243-9828-d7e70721e470/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE