./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff 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_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu --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 a723a67708085ac2edc65dca820ea0ff5f017c1387423fea83ca87f76f9f53c3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:04:18,507 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:04:18,621 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-19 08:04:18,628 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:04:18,629 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:04:18,666 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:04:18,667 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:04:18,667 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:04:18,669 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:04:18,674 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:04:18,674 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:04:18,675 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 08:04:18,675 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 08:04:18,677 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 08:04:18,678 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 08:04:18,678 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 08:04:18,679 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 08:04:18,680 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:04:18,680 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 08:04:18,681 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:04:18,681 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:04:18,682 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 08:04:18,682 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 08:04:18,683 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 08:04:18,683 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:04:18,684 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:04:18,684 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 08:04:18,684 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:04:18,685 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:04:18,685 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:04:18,687 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:04:18,687 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:04:18,688 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 08:04:18,688 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_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a723a67708085ac2edc65dca820ea0ff5f017c1387423fea83ca87f76f9f53c3 [2023-11-19 08:04:18,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:04:19,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:04:19,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:04:19,019 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:04:19,019 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:04:19,020 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c [2023-11-19 08:04:22,115 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:04:22,333 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:04:22,334 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c [2023-11-19 08:04:22,344 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/data/6ef95978e/2b7879a0262a4feeb198e12c94fa016a/FLAGd72d090e5 [2023-11-19 08:04:22,359 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/data/6ef95978e/2b7879a0262a4feeb198e12c94fa016a [2023-11-19 08:04:22,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:04:22,363 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:04:22,365 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:04:22,365 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:04:22,371 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:04:22,372 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:22" (1/1) ... [2023-11-19 08:04:22,373 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b7bab15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:22, skipping insertion in model container [2023-11-19 08:04:22,374 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:22" (1/1) ... [2023-11-19 08:04:22,395 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:04:22,550 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:04:22,557 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:04:22,571 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:04:22,587 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:04:22,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:22 WrapperNode [2023-11-19 08:04:22,588 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:04:22,589 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:04:22,589 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:04:22,590 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:04:22,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:22" (1/1) ... [2023-11-19 08:04:22,603 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:22" (1/1) ... [2023-11-19 08:04:22,628 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2023-11-19 08:04:22,628 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:04:22,629 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:04:22,629 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:04:22,630 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:04:22,640 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:22" (1/1) ... [2023-11-19 08:04:22,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:22" (1/1) ... [2023-11-19 08:04:22,642 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:22" (1/1) ... [2023-11-19 08:04:22,642 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:22" (1/1) ... [2023-11-19 08:04:22,644 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:22" (1/1) ... [2023-11-19 08:04:22,649 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:22" (1/1) ... [2023-11-19 08:04:22,650 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:22" (1/1) ... [2023-11-19 08:04:22,651 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:22" (1/1) ... [2023-11-19 08:04:22,653 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:04:22,654 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:04:22,654 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:04:22,655 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:04:22,656 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:22" (1/1) ... [2023-11-19 08:04:22,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:22,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:22,737 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:22,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 08:04:22,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:04:22,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:04:22,897 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:04:22,899 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:04:22,963 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:04:22,972 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:04:22,972 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 08:04:22,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:22 BoogieIcfgContainer [2023-11-19 08:04:22,976 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:04:22,977 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 08:04:22,978 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 08:04:22,982 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 08:04:22,983 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:04:22,983 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 08:04:22" (1/3) ... [2023-11-19 08:04:22,984 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7651aa29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:04:22, skipping insertion in model container [2023-11-19 08:04:22,984 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:04:22,984 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:22" (2/3) ... [2023-11-19 08:04:22,984 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7651aa29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:04:22, skipping insertion in model container [2023-11-19 08:04:22,985 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:04:22,985 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:22" (3/3) ... [2023-11-19 08:04:22,986 INFO L332 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-while2.c [2023-11-19 08:04:23,052 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 08:04:23,053 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 08:04:23,053 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 08:04:23,053 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 08:04:23,053 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 08:04:23,053 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 08:04:23,054 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 08:04:23,054 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 08:04:23,059 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:23,081 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-19 08:04:23,081 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:04:23,082 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:04:23,088 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 08:04:23,089 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 08:04:23,089 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 08:04:23,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:23,092 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-19 08:04:23,093 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:04:23,094 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:04:23,095 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 08:04:23,095 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 08:04:23,106 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~j~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~N~0#1;havoc main_#t~nondet0#1;main_~N~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_~N~0#1; 4#L17-2true [2023-11-19 08:04:23,106 INFO L750 eck$LassoCheckResult]: Loop: 4#L17-2true assume !!(main_~i~0#1 > 0);main_~j~0#1 := main_~N~0#1; 2#L19-2true assume !(main_~j~0#1 > 0); 9#L19-3true main_~i~0#1 := main_~i~0#1 - 1; 4#L17-2true [2023-11-19 08:04:23,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:23,114 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-19 08:04:23,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:23,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698386895] [2023-11-19 08:04:23,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:23,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:23,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:23,244 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:04:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:23,268 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:04:23,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:23,279 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2023-11-19 08:04:23,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:23,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573249363] [2023-11-19 08:04:23,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:23,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:23,301 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:04:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:23,319 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:04:23,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:23,322 INFO L85 PathProgramCache]: Analyzing trace with hash 28699886, now seen corresponding path program 1 times [2023-11-19 08:04:23,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:23,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982621925] [2023-11-19 08:04:23,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:23,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:23,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:23,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:23,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:23,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982621925] [2023-11-19 08:04:23,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982621925] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:23,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:23,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:04:23,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865727935] [2023-11-19 08:04:23,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:23,654 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:04:23,655 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:04:23,655 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:04:23,655 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:04:23,655 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 08:04:23,655 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:23,655 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:04:23,656 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:04:23,656 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration1_Loop [2023-11-19 08:04:23,656 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:04:23,656 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:04:23,674 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:04:23,686 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:04:23,692 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:04:23,702 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:04:23,786 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:04:23,787 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 08:04:23,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:23,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:23,795 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:23,811 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:04:23,811 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:04:23,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-19 08:04:23,838 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 08:04:23,838 INFO L440 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: [] [2023-11-19 08:04:23,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-19 08:04:23,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:23,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:23,855 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:23,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-19 08:04:23,858 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:04:23,858 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:04:23,886 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 08:04:23,886 INFO L440 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: [] [2023-11-19 08:04:23,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:23,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:23,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:23,902 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:23,912 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:04:23,912 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:04:23,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-19 08:04:23,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:23,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:23,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:23,980 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:23,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-19 08:04:23,982 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 08:04:23,982 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:04:24,016 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 08:04:24,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:24,024 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:04:24,024 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:04:24,024 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:04:24,024 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:04:24,024 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 08:04:24,025 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:24,025 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:04:24,025 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:04:24,025 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration1_Loop [2023-11-19 08:04:24,025 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:04:24,025 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:04:24,028 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:04:24,043 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:04:24,076 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:04:24,082 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:04:24,167 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:04:24,173 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 08:04:24,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:24,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:24,178 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:24,187 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 [2023-11-19 08:04:24,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-19 08:04:24,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:04:24,202 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 08:04:24,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:04:24,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:04:24,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:04:24,206 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 08:04:24,206 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 08:04:24,216 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 08:04:24,220 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-19 08:04:24,220 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 08:04:24,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:24,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:24,261 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:24,268 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 08:04:24,268 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 08:04:24,269 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 08:04:24,270 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-19 08:04:24,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-19 08:04:24,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:24,286 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 08:04:24,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:24,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:04:24,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:24,351 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:04:24,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:24,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:24,432 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 [2023-11-19 08:04:24,435 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:24,503 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 34 transitions. Complement of second has 8 states. [2023-11-19 08:04:24,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-19 08:04:24,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:24,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2023-11-19 08:04:24,525 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 3 letters. [2023-11-19 08:04:24,527 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:04:24,527 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-19 08:04:24,527 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:04:24,528 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 6 letters. [2023-11-19 08:04:24,528 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:04:24,529 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 34 transitions. [2023-11-19 08:04:24,537 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-19 08:04:24,541 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 8 states and 11 transitions. [2023-11-19 08:04:24,543 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-11-19 08:04:24,543 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-11-19 08:04:24,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2023-11-19 08:04:24,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 08:04:24,546 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-19 08:04:24,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2023-11-19 08:04:24,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2023-11-19 08:04:24,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) [2023-11-19 08:04:24,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2023-11-19 08:04:24,581 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-11-19 08:04:24,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:24,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:04:24,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:24,586 INFO L87 Difference]: Start difference. First operand 7 states and 10 transitions. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:24,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:24,647 INFO L93 Difference]: Finished difference Result 12 states and 16 transitions. [2023-11-19 08:04:24,648 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 16 transitions. [2023-11-19 08:04:24,649 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2023-11-19 08:04:24,649 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 16 transitions. [2023-11-19 08:04:24,650 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-19 08:04:24,650 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-19 08:04:24,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2023-11-19 08:04:24,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 08:04:24,651 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2023-11-19 08:04:24,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2023-11-19 08:04:24,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 8. [2023-11-19 08:04:24,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:24,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-11-19 08:04:24,653 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-19 08:04:24,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:04:24,655 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-19 08:04:24,655 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 08:04:24,655 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2023-11-19 08:04:24,656 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-19 08:04:24,656 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:04:24,657 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:04:24,657 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-19 08:04:24,657 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-19 08:04:24,658 INFO L748 eck$LassoCheckResult]: Stem: 101#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 102#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~j~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~N~0#1;havoc main_#t~nondet0#1;main_~N~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_~N~0#1; 99#L17-2 assume !!(main_~i~0#1 > 0);main_~j~0#1 := main_~N~0#1; 96#L19-2 [2023-11-19 08:04:24,658 INFO L750 eck$LassoCheckResult]: Loop: 96#L19-2 assume !!(main_~j~0#1 > 0);main_~j~0#1 := main_~j~0#1 - 1; 96#L19-2 [2023-11-19 08:04:24,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:24,659 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-19 08:04:24,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:24,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464121403] [2023-11-19 08:04:24,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:24,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:24,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:24,667 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:04:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:24,672 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:04:24,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:24,673 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2023-11-19 08:04:24,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:24,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798708092] [2023-11-19 08:04:24,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:24,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:24,680 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:04:24,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:24,684 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:04:24,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:24,685 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2023-11-19 08:04:24,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:24,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318395276] [2023-11-19 08:04:24,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:24,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:24,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:24,693 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:04:24,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:24,699 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:04:24,716 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:04:24,717 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:04:24,717 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:04:24,717 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:04:24,717 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 08:04:24,718 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:24,718 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:04:24,718 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:04:24,718 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration2_Loop [2023-11-19 08:04:24,718 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:04:24,718 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:04:24,720 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:04:24,724 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:04:24,728 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:04:24,773 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:04:24,774 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 08:04:24,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:24,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:24,776 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:24,786 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:04:24,786 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:04:24,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-19 08:04:24,812 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 08:04:24,812 INFO L440 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: [] [2023-11-19 08:04:24,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:24,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:24,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:24,839 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:24,844 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:04:24,845 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:04:24,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-19 08:04:24,873 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 08:04:24,873 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 08:04:24,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:24,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:24,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:24,908 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:24,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-19 08:04:24,916 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:04:24,916 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:04:24,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:24,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:24,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:24,944 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:24,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-19 08:04:24,946 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 08:04:24,946 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:04:25,000 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 08:04:25,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:25,008 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:04:25,008 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:04:25,008 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:04:25,008 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:04:25,008 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 08:04:25,008 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:25,008 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:04:25,008 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:04:25,009 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration2_Loop [2023-11-19 08:04:25,009 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:04:25,009 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:04:25,010 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:04:25,018 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:04:25,021 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:04:25,076 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:04:25,076 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 08:04:25,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:25,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:25,078 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:25,086 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 [2023-11-19 08:04:25,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-19 08:04:25,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:04:25,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:04:25,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:04:25,101 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:04:25,106 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 08:04:25,106 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 08:04:25,129 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 08:04:25,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:25,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:25,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:25,153 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:25,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-19 08:04:25,160 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 [2023-11-19 08:04:25,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:04:25,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:04:25,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:04:25,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:04:25,178 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 08:04:25,178 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 08:04:25,190 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 08:04:25,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:25,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:25,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:25,214 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:25,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-19 08:04:25,220 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 [2023-11-19 08:04:25,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:04:25,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 08:04:25,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:04:25,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:04:25,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:04:25,238 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 08:04:25,238 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 08:04:25,263 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 08:04:25,270 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 08:04:25,270 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-19 08:04:25,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:25,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:25,274 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:25,283 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 08:04:25,283 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 08:04:25,283 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 08:04:25,283 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2023-11-19 08:04:25,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-19 08:04:25,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:25,305 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 08:04:25,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:25,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:25,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:04:25,329 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:25,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:25,339 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:04:25,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:25,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:25,340 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-19 08:04:25,341 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:25,352 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 20 transitions. Complement of second has 5 states. [2023-11-19 08:04:25,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-19 08:04:25,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:25,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-11-19 08:04:25,355 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 1 letters. [2023-11-19 08:04:25,355 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:04:25,355 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 1 letters. [2023-11-19 08:04:25,355 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:04:25,356 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2023-11-19 08:04:25,356 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:04:25,356 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2023-11-19 08:04:25,357 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-19 08:04:25,358 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 15 transitions. [2023-11-19 08:04:25,359 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-11-19 08:04:25,359 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2023-11-19 08:04:25,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2023-11-19 08:04:25,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 08:04:25,359 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 15 transitions. [2023-11-19 08:04:25,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2023-11-19 08:04:25,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 8. [2023-11-19 08:04:25,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:25,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2023-11-19 08:04:25,362 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2023-11-19 08:04:25,362 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2023-11-19 08:04:25,362 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-19 08:04:25,362 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2023-11-19 08:04:25,363 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-19 08:04:25,363 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:04:25,363 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:04:25,364 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2023-11-19 08:04:25,364 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-19 08:04:25,364 INFO L748 eck$LassoCheckResult]: Stem: 155#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 156#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~j~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~N~0#1;havoc main_#t~nondet0#1;main_~N~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_~N~0#1; 153#L17-2 assume !!(main_~i~0#1 > 0);main_~j~0#1 := main_~N~0#1; 151#L19-2 assume !!(main_~j~0#1 > 0);main_~j~0#1 := main_~j~0#1 - 1; 152#L19-2 assume !(main_~j~0#1 > 0); 157#L19-3 main_~i~0#1 := main_~i~0#1 - 1; 154#L17-2 assume !!(main_~i~0#1 > 0);main_~j~0#1 := main_~N~0#1; 150#L19-2 [2023-11-19 08:04:25,364 INFO L750 eck$LassoCheckResult]: Loop: 150#L19-2 assume !!(main_~j~0#1 > 0);main_~j~0#1 := main_~j~0#1 - 1; 150#L19-2 [2023-11-19 08:04:25,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:25,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1810841241, now seen corresponding path program 1 times [2023-11-19 08:04:25,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:25,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502802917] [2023-11-19 08:04:25,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:25,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:25,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:25,483 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:25,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:25,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502802917] [2023-11-19 08:04:25,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502802917] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:04:25,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145419211] [2023-11-19 08:04:25,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:25,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:25,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:25,486 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:25,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-19 08:04:25,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:25,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 08:04:25,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:25,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:25,601 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:04:25,690 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:25,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145419211] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:04:25,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:04:25,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-11-19 08:04:25,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239291479] [2023-11-19 08:04:25,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:04:25,691 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 08:04:25,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:25,692 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 2 times [2023-11-19 08:04:25,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:25,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950448524] [2023-11-19 08:04:25,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:25,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:25,697 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:04:25,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:04:25,700 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:04:25,715 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:04:25,715 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:04:25,716 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:04:25,716 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:04:25,716 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 08:04:25,716 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:25,716 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:04:25,716 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:04:25,716 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration3_Loop [2023-11-19 08:04:25,716 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:04:25,717 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:04:25,718 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:04:25,723 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:04:25,731 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:04:25,775 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:04:25,776 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 08:04:25,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:25,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:25,783 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:25,790 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:04:25,791 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:04:25,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-19 08:04:25,813 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 08:04:25,814 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 08:04:25,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:25,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:25,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:25,831 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:25,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-19 08:04:25,832 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:04:25,832 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:04:25,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:25,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:25,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:25,859 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:25,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-19 08:04:25,864 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 08:04:25,864 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:04:25,920 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 08:04:25,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:25,929 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:04:25,929 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:04:25,929 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:04:25,929 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:04:25,929 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 08:04:25,930 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:25,930 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:04:25,930 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:04:25,930 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration3_Loop [2023-11-19 08:04:25,930 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:04:25,930 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:04:25,931 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:04:25,939 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:04:25,947 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:04:25,996 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:04:25,996 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 08:04:25,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:25,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:26,004 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:26,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-19 08:04:26,008 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 [2023-11-19 08:04:26,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:04:26,023 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 08:04:26,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:04:26,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:04:26,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:04:26,025 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 08:04:26,025 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 08:04:26,035 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 08:04:26,038 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 08:04:26,038 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-19 08:04:26,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:04:26,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:26,041 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:26,043 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 08:04:26,043 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 08:04:26,043 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 08:04:26,043 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2023-11-19 08:04:26,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-19 08:04:26,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:26,070 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 08:04:26,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:26,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:04:26,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:26,120 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:04:26,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:26,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:26,123 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-19 08:04:26,123 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-11-19 08:04:26,139 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 17 transitions. Complement of second has 5 states. [2023-11-19 08:04:26,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-19 08:04:26,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-11-19 08:04:26,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-11-19 08:04:26,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 1 letters. [2023-11-19 08:04:26,143 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:04:26,143 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 08:04:26,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:26,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:04:26,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:26,182 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:04:26,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:26,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:26,184 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-19 08:04:26,185 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-11-19 08:04:26,198 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 17 transitions. Complement of second has 5 states. [2023-11-19 08:04:26,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-19 08:04:26,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-11-19 08:04:26,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-11-19 08:04:26,204 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 1 letters. [2023-11-19 08:04:26,204 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:04:26,204 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 08:04:26,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:26,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:26,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:04:26,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:26,240 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:04:26,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:26,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:26,241 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-19 08:04:26,242 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-11-19 08:04:26,254 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 13 transitions. Complement of second has 4 states. [2023-11-19 08:04:26,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-19 08:04:26,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-11-19 08:04:26,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2023-11-19 08:04:26,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 1 letters. [2023-11-19 08:04:26,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:04:26,257 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 1 letters. [2023-11-19 08:04:26,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:04:26,257 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 2 letters. [2023-11-19 08:04:26,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:04:26,257 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2023-11-19 08:04:26,258 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 08:04:26,258 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2023-11-19 08:04:26,259 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 08:04:26,259 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 08:04:26,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 08:04:26,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:04:26,259 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 08:04:26,259 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 08:04:26,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:26,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 08:04:26,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-19 08:04:26,261 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 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) [2023-11-19 08:04:26,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:26,261 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-11-19 08:04:26,261 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-11-19 08:04:26,261 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 08:04:26,261 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 08:04:26,261 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 08:04:26,262 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 08:04:26,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 08:04:26,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:04:26,262 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 08:04:26,262 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 08:04:26,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:04:26,263 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 08:04:26,263 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-19 08:04:26,263 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-19 08:04:26,263 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 08:04:26,264 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-19 08:04:26,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 08:04:26 BoogieIcfgContainer [2023-11-19 08:04:26,272 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 08:04:26,272 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:04:26,272 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:04:26,273 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:04:26,273 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:22" (3/4) ... [2023-11-19 08:04:26,275 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 08:04:26,276 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:04:26,277 INFO L158 Benchmark]: Toolchain (without parser) took 3914.02ms. Allocated memory was 161.5MB in the beginning and 199.2MB in the end (delta: 37.7MB). Free memory was 117.0MB in the beginning and 84.9MB in the end (delta: 32.1MB). Peak memory consumption was 71.1MB. Max. memory is 16.1GB. [2023-11-19 08:04:26,278 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 161.5MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:04:26,278 INFO L158 Benchmark]: CACSL2BoogieTranslator took 223.17ms. Allocated memory is still 161.5MB. Free memory was 117.0MB in the beginning and 107.4MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 08:04:26,279 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.62ms. Allocated memory is still 161.5MB. Free memory was 107.4MB in the beginning and 105.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:04:26,279 INFO L158 Benchmark]: Boogie Preprocessor took 23.69ms. Allocated memory is still 161.5MB. Free memory was 105.8MB in the beginning and 105.0MB in the end (delta: 862.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:04:26,280 INFO L158 Benchmark]: RCFGBuilder took 322.38ms. Allocated memory is still 161.5MB. Free memory was 105.0MB in the beginning and 96.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 08:04:26,294 INFO L158 Benchmark]: BuchiAutomizer took 3294.42ms. Allocated memory was 161.5MB in the beginning and 199.2MB in the end (delta: 37.7MB). Free memory was 96.3MB in the beginning and 84.9MB in the end (delta: 11.4MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. [2023-11-19 08:04:26,294 INFO L158 Benchmark]: Witness Printer took 4.22ms. Allocated memory is still 199.2MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:04:26,305 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 161.5MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 223.17ms. Allocated memory is still 161.5MB. Free memory was 117.0MB in the beginning and 107.4MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.62ms. Allocated memory is still 161.5MB. Free memory was 107.4MB in the beginning and 105.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.69ms. Allocated memory is still 161.5MB. Free memory was 105.8MB in the beginning and 105.0MB in the end (delta: 862.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 322.38ms. Allocated memory is still 161.5MB. Free memory was 105.0MB in the beginning and 96.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3294.42ms. Allocated memory was 161.5MB in the beginning and 199.2MB in the end (delta: 37.7MB). Free memory was 96.3MB in the beginning and 84.9MB in the end (delta: 11.4MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. * Witness Printer took 4.22ms. Allocated memory is still 199.2MB. Free memory is still 84.9MB. 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function i and consists of 5 locations. One deterministic module has affine ranking function j and consists of 3 locations. One nondeterministic module has affine ranking function j and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 32 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax204 hnf100 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 53ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating [2023-11-19 08:04:26,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 RESULT: Ultimate proved your program to be correct! [2023-11-19 08:04:26,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:26,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:26,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:26,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef007f1b-8b18-436f-9e03-9d22f2a34077/bin/uautomizer-verify-uCwYo4JHxu/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