./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-numeric/gcd01-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/gcd01-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya --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 45c5821ff02aca8bda5f221968fe713118b5c593fcfc7e422e3a99fb31bf02bb --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:36:54,213 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:36:54,291 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-28 23:36:54,297 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:36:54,298 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:36:54,323 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:36:54,323 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:36:54,324 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:36:54,324 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 23:36:54,325 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 23:36:54,326 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:36:54,326 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:36:54,327 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:36:54,327 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-28 23:36:54,328 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-28 23:36:54,328 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-28 23:36:54,329 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-28 23:36:54,329 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-28 23:36:54,330 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-28 23:36:54,330 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:36:54,331 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-28 23:36:54,332 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 23:36:54,332 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:36:54,333 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-28 23:36:54,333 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-28 23:36:54,333 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-28 23:36:54,334 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 23:36:54,334 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 23:36:54,335 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-28 23:36:54,335 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:36:54,336 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:36:54,336 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:36:54,336 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:36:54,337 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 23:36:54,337 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-28 23:36:54,337 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_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45c5821ff02aca8bda5f221968fe713118b5c593fcfc7e422e3a99fb31bf02bb [2023-11-28 23:36:54,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:36:54,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:36:54,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:36:54,611 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:36:54,611 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:36:54,612 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/termination-numeric/gcd01-2.c [2023-11-28 23:36:57,396 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:36:57,552 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:36:57,552 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/sv-benchmarks/c/termination-numeric/gcd01-2.c [2023-11-28 23:36:57,558 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/data/e7382d1aa/69a6326bbe614114bbc61eb38488ddf2/FLAG5c90d94ff [2023-11-28 23:36:57,570 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/data/e7382d1aa/69a6326bbe614114bbc61eb38488ddf2 [2023-11-28 23:36:57,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:36:57,574 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:36:57,575 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:36:57,575 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:36:57,583 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:36:57,584 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:36:57" (1/1) ... [2023-11-28 23:36:57,585 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f7b2959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:36:57, skipping insertion in model container [2023-11-28 23:36:57,585 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:36:57" (1/1) ... [2023-11-28 23:36:57,602 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:36:57,747 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:36:57,758 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 23:36:57,771 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:36:57,785 INFO L206 MainTranslator]: Completed translation [2023-11-28 23:36:57,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:36:57 WrapperNode [2023-11-28 23:36:57,786 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:36:57,787 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 23:36:57,787 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 23:36:57,787 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 23:36:57,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:36:57" (1/1) ... [2023-11-28 23:36:57,798 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:36:57" (1/1) ... [2023-11-28 23:36:57,811 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31 [2023-11-28 23:36:57,812 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 23:36:57,812 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 23:36:57,813 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 23:36:57,813 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 23:36:57,821 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:36:57" (1/1) ... [2023-11-28 23:36:57,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:36:57" (1/1) ... [2023-11-28 23:36:57,822 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:36:57" (1/1) ... [2023-11-28 23:36:57,831 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-28 23:36:57,832 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:36:57" (1/1) ... [2023-11-28 23:36:57,832 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:36:57" (1/1) ... [2023-11-28 23:36:57,835 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:36:57" (1/1) ... [2023-11-28 23:36:57,837 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:36:57" (1/1) ... [2023-11-28 23:36:57,838 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:36:57" (1/1) ... [2023-11-28 23:36:57,838 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:36:57" (1/1) ... [2023-11-28 23:36:57,840 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 23:36:57,841 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 23:36:57,841 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 23:36:57,841 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 23:36:57,842 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:36:57" (1/1) ... [2023-11-28 23:36:57,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:36:57,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:36:57,868 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:36:57,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-28 23:36:57,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 23:36:57,898 INFO L130 BoogieDeclarations]: Found specification of procedure gcd [2023-11-28 23:36:57,898 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd [2023-11-28 23:36:57,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 23:36:57,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 23:36:57,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 23:36:57,950 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 23:36:57,952 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 23:36:58,043 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 23:36:58,052 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 23:36:58,052 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-28 23:36:58,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:36:58 BoogieIcfgContainer [2023-11-28 23:36:58,054 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 23:36:58,055 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-28 23:36:58,055 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-28 23:36:58,058 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-28 23:36:58,059 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-28 23:36:58,059 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:36:57" (1/3) ... [2023-11-28 23:36:58,060 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4260930a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:36:58, skipping insertion in model container [2023-11-28 23:36:58,060 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-28 23:36:58,060 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:36:57" (2/3) ... [2023-11-28 23:36:58,060 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4260930a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:36:58, skipping insertion in model container [2023-11-28 23:36:58,060 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-28 23:36:58,061 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:36:58" (3/3) ... [2023-11-28 23:36:58,062 INFO L332 chiAutomizerObserver]: Analyzing ICFG gcd01-2.c [2023-11-28 23:36:58,106 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-28 23:36:58,106 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-28 23:36:58,106 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-28 23:36:58,106 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-28 23:36:58,107 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-28 23:36:58,107 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-28 23:36:58,107 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-28 23:36:58,107 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-28 23:36:58,111 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-28 23:36:58,129 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-28 23:36:58,129 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 23:36:58,129 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 23:36:58,134 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-28 23:36:58,134 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-11-28 23:36:58,135 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-28 23:36:58,135 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-28 23:36:58,137 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-28 23:36:58,137 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 23:36:58,137 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 23:36:58,138 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-28 23:36:58,138 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-11-28 23:36:58,145 INFO L748 eck$LassoCheckResult]: Stem: 17#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3); 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_~m~0#1, main_~n~0#1, main_~z~0#1;havoc main_#t~nondet6#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 8#L32true assume !(main_~m~0#1 <= 0);havoc main_#t~nondet7#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 9#L36true assume !(main_~n~0#1 <= 0); 23#L39true call main_#t~ret8#1 := gcd(main_~m~0#1, main_~n~0#1);< 20#$Ultimate##0true [2023-11-28 23:36:58,145 INFO L750 eck$LassoCheckResult]: Loop: 20#$Ultimate##0true ~y1 := #in~y1;~y2 := #in~y2; 5#L18true assume !(~y1 <= 0 || ~y2 <= 0); 10#L21true assume !(~y1 == ~y2); 19#L24true assume !(~y1 > ~y2); 18#L27true call #t~ret5 := gcd(~y1, ~y2 - ~y1);< 20#$Ultimate##0true [2023-11-28 23:36:58,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:36:58,151 INFO L85 PathProgramCache]: Analyzing trace with hash 45873353, now seen corresponding path program 1 times [2023-11-28 23:36:58,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:36:58,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736598169] [2023-11-28 23:36:58,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:36:58,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:36:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:36:58,257 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 23:36:58,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:36:58,285 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 23:36:58,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:36:58,288 INFO L85 PathProgramCache]: Analyzing trace with hash 28756484, now seen corresponding path program 1 times [2023-11-28 23:36:58,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:36:58,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433213126] [2023-11-28 23:36:58,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:36:58,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:36:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:36:58,298 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 23:36:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:36:58,306 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 23:36:58,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:36:58,308 INFO L85 PathProgramCache]: Analyzing trace with hash 50269756, now seen corresponding path program 1 times [2023-11-28 23:36:58,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:36:58,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823199428] [2023-11-28 23:36:58,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:36:58,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:36:58,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:36:58,325 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 23:36:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:36:58,340 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 23:36:58,509 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 23:36:58,510 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 23:36:58,510 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 23:36:58,510 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 23:36:58,510 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-28 23:36:58,510 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:36:58,511 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 23:36:58,511 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 23:36:58,511 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration1_Loop [2023-11-28 23:36:58,511 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 23:36:58,511 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 23:36:58,527 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:36:58,536 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:36:58,539 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:36:58,553 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:36:58,556 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:36:58,559 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:36:58,634 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 23:36:58,635 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-28 23:36:58,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:36:58,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:36:58,638 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:36:58,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-28 23:36:58,641 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 23:36:58,641 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 23:36:58,659 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-28 23:36:58,659 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#t~ret5=0} Honda state: {gcd_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-28 23:36:58,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-28 23:36:58,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:36:58,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:36:58,665 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:36:58,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-28 23:36:58,667 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 23:36:58,668 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 23:36:58,680 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-28 23:36:58,680 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#res=0} Honda state: {gcd_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-28 23:36:58,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-28 23:36:58,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:36:58,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:36:58,690 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:36:58,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-28 23:36:58,693 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 23:36:58,694 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 23:36:58,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-28 23:36:58,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:36:58,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:36:58,714 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:36:58,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-28 23:36:58,717 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-28 23:36:58,717 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 23:36:58,855 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-28 23:36:58,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-28 23:36:58,858 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 23:36:58,859 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 23:36:58,859 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 23:36:58,859 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 23:36:58,859 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-28 23:36:58,859 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:36:58,859 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 23:36:58,859 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 23:36:58,859 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration1_Loop [2023-11-28 23:36:58,859 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 23:36:58,860 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 23:36:58,861 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:36:58,865 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:36:58,867 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:36:58,878 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:36:58,881 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:36:58,884 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:36:58,944 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 23:36:58,948 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-28 23:36:58,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:36:58,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:36:58,950 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:36:58,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-28 23:36:58,954 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 [2023-11-28 23:36:58,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 23:36:58,964 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 23:36:58,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 23:36:58,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 23:36:58,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 23:36:58,967 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 23:36:58,967 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 23:36:58,969 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 23:36:58,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-11-28 23:36:58,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:36:58,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:36:58,975 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:36:58,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-28 23:36:58,985 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 [2023-11-28 23:36:58,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 23:36:58,996 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 23:36:58,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 23:36:58,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 23:36:58,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 23:36:58,997 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 23:36:58,997 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 23:36:58,999 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 23:36:59,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-11-28 23:36:59,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:36:59,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:36:59,003 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:36:59,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-28 23:36:59,005 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 [2023-11-28 23:36:59,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 23:36:59,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 23:36:59,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 23:36:59,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 23:36:59,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 23:36:59,018 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 23:36:59,018 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 23:36:59,022 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-28 23:36:59,027 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-28 23:36:59,028 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-28 23:36:59,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:36:59,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:36:59,061 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:36:59,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-28 23:36:59,062 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-28 23:36:59,063 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-28 23:36:59,063 INFO L513 LassoAnalysis]: Proved termination. [2023-11-28 23:36:59,063 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(gcd_#in~y2) = 1*gcd_#in~y2 Supporting invariants [] [2023-11-28 23:36:59,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-28 23:36:59,069 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-28 23:36:59,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:36:59,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:36:59,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 23:36:59,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:36:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:36:59,141 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 23:36:59,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:36:59,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:36:59,231 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-28 23:36:59,232 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 22 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:36:59,369 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 22 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 72 states and 99 transitions. Complement of second has 18 states. [2023-11-28 23:36:59,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-28 23:36:59,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:36:59,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 25 transitions. [2023-11-28 23:36:59,379 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 5 letters. Loop has 5 letters. [2023-11-28 23:36:59,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 23:36:59,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 10 letters. Loop has 5 letters. [2023-11-28 23:36:59,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 23:36:59,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 5 letters. Loop has 10 letters. [2023-11-28 23:36:59,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 23:36:59,382 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 99 transitions. [2023-11-28 23:36:59,389 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-28 23:36:59,394 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 28 states and 32 transitions. [2023-11-28 23:36:59,395 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2023-11-28 23:36:59,395 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2023-11-28 23:36:59,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 32 transitions. [2023-11-28 23:36:59,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-28 23:36:59,396 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 32 transitions. [2023-11-28 23:36:59,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 32 transitions. [2023-11-28 23:36:59,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 18. [2023-11-28 23:36:59,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 13 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:36:59,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2023-11-28 23:36:59,420 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 21 transitions. [2023-11-28 23:36:59,420 INFO L428 stractBuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2023-11-28 23:36:59,420 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-28 23:36:59,420 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2023-11-28 23:36:59,421 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-28 23:36:59,421 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 23:36:59,421 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 23:36:59,422 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-28 23:36:59,422 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-11-28 23:36:59,422 INFO L748 eck$LassoCheckResult]: Stem: 176#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3); 177#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_~m~0#1, main_~n~0#1, main_~z~0#1;havoc main_#t~nondet6#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 181#L32 assume !(main_~m~0#1 <= 0);havoc main_#t~nondet7#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 182#L36 assume !(main_~n~0#1 <= 0); 169#L39 call main_#t~ret8#1 := gcd(main_~m~0#1, main_~n~0#1);< 183#$Ultimate##0 ~y1 := #in~y1;~y2 := #in~y2; 172#L18 [2023-11-28 23:36:59,422 INFO L750 eck$LassoCheckResult]: Loop: 172#L18 assume !(~y1 <= 0 || ~y2 <= 0); 173#L21 assume !(~y1 == ~y2); 179#L24 assume ~y1 > ~y2; 166#L25 call #t~ret4 := gcd(~y1 - ~y2, ~y2);< 168#$Ultimate##0 ~y1 := #in~y1;~y2 := #in~y2; 172#L18 [2023-11-28 23:36:59,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:36:59,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1422073943, now seen corresponding path program 1 times [2023-11-28 23:36:59,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:36:59,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309447952] [2023-11-28 23:36:59,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:36:59,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:36:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:36:59,432 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 23:36:59,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:36:59,441 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 23:36:59,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:36:59,442 INFO L85 PathProgramCache]: Analyzing trace with hash 32573529, now seen corresponding path program 1 times [2023-11-28 23:36:59,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:36:59,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491405560] [2023-11-28 23:36:59,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:36:59,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:36:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:36:59,449 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 23:36:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:36:59,455 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 23:36:59,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:36:59,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1558359491, now seen corresponding path program 1 times [2023-11-28 23:36:59,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:36:59,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807080505] [2023-11-28 23:36:59,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:36:59,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:36:59,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:36:59,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 23:36:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:36:59,479 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 23:36:59,584 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 23:36:59,585 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 23:36:59,585 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 23:36:59,585 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 23:36:59,585 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-28 23:36:59,585 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:36:59,585 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 23:36:59,585 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 23:36:59,585 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration2_Loop [2023-11-28 23:36:59,586 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 23:36:59,586 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 23:36:59,587 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:36:59,590 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:36:59,593 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:36:59,595 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:36:59,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-11-28 23:36:59,704 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 23:36:59,704 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-28 23:36:59,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:36:59,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:36:59,710 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:36:59,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-28 23:36:59,717 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 23:36:59,717 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 23:36:59,732 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-28 23:36:59,732 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#t~ret4=0} Honda state: {gcd_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-28 23:36:59,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-11-28 23:36:59,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:36:59,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:36:59,737 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:36:59,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-28 23:36:59,745 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 23:36:59,745 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 23:36:59,757 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-28 23:36:59,757 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#t~ret5=0} Honda state: {gcd_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-28 23:36:59,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-11-28 23:36:59,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:36:59,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:36:59,762 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:36:59,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-28 23:36:59,764 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 23:36:59,764 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 23:36:59,777 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-28 23:36:59,777 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#res=0} Honda state: {gcd_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-28 23:36:59,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-11-28 23:36:59,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:36:59,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:36:59,781 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:36:59,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-28 23:36:59,784 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 23:36:59,784 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 23:36:59,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-11-28 23:36:59,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:36:59,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:36:59,811 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:36:59,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-28 23:36:59,813 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-28 23:36:59,813 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 23:37:00,343 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-28 23:37:00,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-11-28 23:37:00,347 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 23:37:00,347 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 23:37:00,347 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 23:37:00,348 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 23:37:00,348 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-28 23:37:00,348 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:37:00,348 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 23:37:00,348 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 23:37:00,348 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration2_Loop [2023-11-28 23:37:00,348 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 23:37:00,348 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 23:37:00,349 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:37:00,351 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:37:00,353 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:37:00,355 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:37:00,406 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 23:37:00,406 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-28 23:37:00,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:37:00,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:37:00,407 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:37:00,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-28 23:37:00,409 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 [2023-11-28 23:37:00,419 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 23:37:00,419 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 23:37:00,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 23:37:00,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 23:37:00,419 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 23:37:00,420 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 23:37:00,420 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 23:37:00,421 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 23:37:00,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-11-28 23:37:00,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:37:00,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:37:00,425 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:37:00,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-28 23:37:00,427 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 [2023-11-28 23:37:00,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 23:37:00,437 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 23:37:00,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 23:37:00,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 23:37:00,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 23:37:00,438 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 23:37:00,438 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 23:37:00,440 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 23:37:00,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-11-28 23:37:00,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:37:00,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:37:00,445 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:37:00,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-28 23:37:00,447 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 [2023-11-28 23:37:00,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 23:37:00,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 23:37:00,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 23:37:00,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 23:37:00,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 23:37:00,460 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 23:37:00,460 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 23:37:00,462 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 23:37:00,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-28 23:37:00,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:37:00,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:37:00,466 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:37:00,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-28 23:37:00,468 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 [2023-11-28 23:37:00,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 23:37:00,478 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 23:37:00,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 23:37:00,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 23:37:00,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 23:37:00,481 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 23:37:00,481 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 23:37:00,486 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-28 23:37:00,490 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-28 23:37:00,490 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-28 23:37:00,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:37:00,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:37:00,492 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:37:00,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-28 23:37:00,495 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-28 23:37:00,496 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-28 23:37:00,496 INFO L513 LassoAnalysis]: Proved termination. [2023-11-28 23:37:00,496 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(gcd_~y1) = 1*gcd_~y1 Supporting invariants [] [2023-11-28 23:37:00,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-11-28 23:37:00,499 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-28 23:37:00,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:37:00,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:37:00,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 23:37:00,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:37:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:37:00,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 23:37:00,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:37:00,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:37:00,620 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-11-28 23:37:00,620 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:37:00,659 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 54 states and 61 transitions. Complement of second has 15 states. [2023-11-28 23:37:00,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-28 23:37:00,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:37:00,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2023-11-28 23:37:00,661 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 6 letters. Loop has 5 letters. [2023-11-28 23:37:00,661 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 23:37:00,661 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 11 letters. Loop has 5 letters. [2023-11-28 23:37:00,661 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 23:37:00,661 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 6 letters. Loop has 10 letters. [2023-11-28 23:37:00,661 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 23:37:00,662 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 61 transitions. [2023-11-28 23:37:00,664 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-28 23:37:00,665 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 33 states and 37 transitions. [2023-11-28 23:37:00,665 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-11-28 23:37:00,665 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-11-28 23:37:00,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 37 transitions. [2023-11-28 23:37:00,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-28 23:37:00,665 INFO L218 hiAutomatonCegarLoop]: Abstraction has 33 states and 37 transitions. [2023-11-28 23:37:00,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 37 transitions. [2023-11-28 23:37:00,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 25. [2023-11-28 23:37:00,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.15) internal successors, (23), 19 states have internal predecessors, (23), 5 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:37:00,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2023-11-28 23:37:00,668 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 28 transitions. [2023-11-28 23:37:00,668 INFO L428 stractBuchiCegarLoop]: Abstraction has 25 states and 28 transitions. [2023-11-28 23:37:00,669 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-28 23:37:00,669 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 28 transitions. [2023-11-28 23:37:00,669 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-28 23:37:00,669 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 23:37:00,669 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 23:37:00,670 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:37:00,670 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-11-28 23:37:00,670 INFO L748 eck$LassoCheckResult]: Stem: 318#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3); 319#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_~m~0#1, main_~n~0#1, main_~z~0#1;havoc main_#t~nondet6#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 322#L32 assume !(main_~m~0#1 <= 0);havoc main_#t~nondet7#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 323#L36 assume !(main_~n~0#1 <= 0); 313#L39 call main_#t~ret8#1 := gcd(main_~m~0#1, main_~n~0#1);< 324#$Ultimate##0 ~y1 := #in~y1;~y2 := #in~y2; 312#L18 assume !(~y1 <= 0 || ~y2 <= 0); 315#L21 assume !(~y1 == ~y2); 327#L24 assume !(~y1 > ~y2); 306#L27 call #t~ret5 := gcd(~y1, ~y2 - ~y1);< 317#$Ultimate##0 ~y1 := #in~y1;~y2 := #in~y2; 310#L18 [2023-11-28 23:37:00,670 INFO L750 eck$LassoCheckResult]: Loop: 310#L18 assume !(~y1 <= 0 || ~y2 <= 0); 311#L21 assume !(~y1 == ~y2); 320#L24 assume ~y1 > ~y2; 305#L25 call #t~ret4 := gcd(~y1 - ~y2, ~y2);< 307#$Ultimate##0 ~y1 := #in~y1;~y2 := #in~y2; 310#L18 [2023-11-28 23:37:00,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:37:00,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1558362436, now seen corresponding path program 2 times [2023-11-28 23:37:00,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:37:00,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256605154] [2023-11-28 23:37:00,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:37:00,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:37:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:37:00,680 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 23:37:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:37:00,691 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 23:37:00,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:37:00,692 INFO L85 PathProgramCache]: Analyzing trace with hash 32573529, now seen corresponding path program 2 times [2023-11-28 23:37:00,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:37:00,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887152863] [2023-11-28 23:37:00,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:37:00,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:37:00,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:37:00,698 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 23:37:00,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:37:00,703 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 23:37:00,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:37:00,704 INFO L85 PathProgramCache]: Analyzing trace with hash -2060541706, now seen corresponding path program 1 times [2023-11-28 23:37:00,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:37:00,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593181455] [2023-11-28 23:37:00,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:37:00,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:37:00,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:37:00,717 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 23:37:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:37:00,731 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 23:37:00,824 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 23:37:00,824 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 23:37:00,824 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 23:37:00,824 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 23:37:00,824 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-28 23:37:00,824 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:37:00,824 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 23:37:00,824 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 23:37:00,824 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration3_Loop [2023-11-28 23:37:00,824 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 23:37:00,824 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 23:37:00,825 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:37:00,837 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:37:00,839 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:37:00,842 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:37:00,890 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 23:37:00,890 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-28 23:37:00,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:37:00,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:37:00,891 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:37:00,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-28 23:37:00,897 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 23:37:00,898 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 23:37:00,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-11-28 23:37:00,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:37:00,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:37:00,929 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:37:00,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-28 23:37:00,932 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-28 23:37:00,932 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 23:37:01,452 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-28 23:37:01,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-11-28 23:37:01,456 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 23:37:01,456 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 23:37:01,456 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 23:37:01,456 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 23:37:01,456 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-28 23:37:01,456 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:37:01,456 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 23:37:01,456 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 23:37:01,456 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration3_Loop [2023-11-28 23:37:01,456 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 23:37:01,456 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 23:37:01,457 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:37:01,460 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:37:01,462 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:37:01,473 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 23:37:01,518 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 23:37:01,519 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-28 23:37:01,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:37:01,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:37:01,520 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:37:01,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-28 23:37:01,522 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 [2023-11-28 23:37:01,532 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 23:37:01,532 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 23:37:01,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 23:37:01,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 23:37:01,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 23:37:01,533 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 23:37:01,533 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 23:37:01,535 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 23:37:01,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-11-28 23:37:01,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:37:01,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:37:01,539 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:37:01,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-28 23:37:01,541 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 [2023-11-28 23:37:01,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 23:37:01,551 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 23:37:01,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 23:37:01,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 23:37:01,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 23:37:01,552 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 23:37:01,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 23:37:01,553 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 23:37:01,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-11-28 23:37:01,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:37:01,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:37:01,557 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:37:01,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-28 23:37:01,559 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 [2023-11-28 23:37:01,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 23:37:01,569 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 23:37:01,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 23:37:01,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 23:37:01,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 23:37:01,571 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 23:37:01,571 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 23:37:01,575 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-28 23:37:01,579 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-28 23:37:01,579 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-28 23:37:01,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:37:01,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:37:01,581 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:37:01,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-28 23:37:01,583 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-28 23:37:01,583 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-28 23:37:01,583 INFO L513 LassoAnalysis]: Proved termination. [2023-11-28 23:37:01,583 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(gcd_~y1) = 1*gcd_~y1 Supporting invariants [] [2023-11-28 23:37:01,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-11-28 23:37:01,586 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-28 23:37:01,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:37:01,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:37:01,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 23:37:01,617 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:37:01,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:37:01,643 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 23:37:01,644 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:37:01,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:37:01,696 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-11-28 23:37:01,696 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 28 transitions. cyclomatic complexity: 6 Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:37:01,733 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 28 transitions. cyclomatic complexity: 6. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 51 transitions. Complement of second has 15 states. [2023-11-28 23:37:01,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-28 23:37:01,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:37:01,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2023-11-28 23:37:01,735 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 11 letters. Loop has 5 letters. [2023-11-28 23:37:01,735 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 23:37:01,736 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-28 23:37:01,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:37:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:37:01,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 23:37:01,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:37:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:37:01,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 23:37:01,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:37:01,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:37:01,855 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2023-11-28 23:37:01,856 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 28 transitions. cyclomatic complexity: 6 Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:37:01,890 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 28 transitions. cyclomatic complexity: 6. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 51 transitions. Complement of second has 15 states. [2023-11-28 23:37:01,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-28 23:37:01,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:37:01,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2023-11-28 23:37:01,891 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 11 letters. Loop has 5 letters. [2023-11-28 23:37:01,892 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 23:37:01,892 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-28 23:37:01,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:37:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:37:01,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 23:37:01,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:37:01,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-11-28 23:37:01,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-11-28 23:37:01,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:37:01,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 23:37:01,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:37:02,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:37:02,037 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 4 loop predicates [2023-11-28 23:37:02,037 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 28 transitions. cyclomatic complexity: 6 Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:37:02,078 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 28 transitions. cyclomatic complexity: 6. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 75 states and 86 transitions. Complement of second has 17 states. [2023-11-28 23:37:02,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-28 23:37:02,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:37:02,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2023-11-28 23:37:02,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 11 letters. Loop has 5 letters. [2023-11-28 23:37:02,081 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 23:37:02,081 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 16 letters. Loop has 5 letters. [2023-11-28 23:37:02,081 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 23:37:02,082 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 11 letters. Loop has 10 letters. [2023-11-28 23:37:02,082 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 23:37:02,083 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 86 transitions. [2023-11-28 23:37:02,085 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-28 23:37:02,085 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 0 states and 0 transitions. [2023-11-28 23:37:02,086 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-28 23:37:02,086 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-28 23:37:02,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-28 23:37:02,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:37:02,086 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-28 23:37:02,086 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-28 23:37:02,086 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-28 23:37:02,086 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-28 23:37:02,086 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-28 23:37:02,087 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-28 23:37:02,087 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-28 23:37:02,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:37:02 BoogieIcfgContainer [2023-11-28 23:37:02,094 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-28 23:37:02,095 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 23:37:02,095 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 23:37:02,095 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 23:37:02,096 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:36:58" (3/4) ... [2023-11-28 23:37:02,097 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-28 23:37:02,098 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 23:37:02,099 INFO L158 Benchmark]: Toolchain (without parser) took 4525.18ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 137.7MB in the beginning and 167.1MB in the end (delta: -29.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-28 23:37:02,100 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:37:02,100 INFO L158 Benchmark]: CACSL2BoogieTranslator took 211.56ms. Allocated memory is still 174.1MB. Free memory was 137.7MB in the beginning and 142.3MB in the end (delta: -4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-28 23:37:02,101 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.71ms. Allocated memory is still 174.1MB. Free memory was 142.3MB in the beginning and 140.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 23:37:02,101 INFO L158 Benchmark]: Boogie Preprocessor took 27.64ms. Allocated memory is still 174.1MB. Free memory was 140.8MB in the beginning and 139.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:37:02,101 INFO L158 Benchmark]: RCFGBuilder took 213.36ms. Allocated memory is still 174.1MB. Free memory was 139.5MB in the beginning and 129.2MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-28 23:37:02,102 INFO L158 Benchmark]: BuchiAutomizer took 4039.35ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 129.2MB in the beginning and 167.1MB in the end (delta: -37.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:37:02,102 INFO L158 Benchmark]: Witness Printer took 3.49ms. Allocated memory is still 209.7MB. Free memory is still 167.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:37:02,105 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 211.56ms. Allocated memory is still 174.1MB. Free memory was 137.7MB in the beginning and 142.3MB in the end (delta: -4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.71ms. Allocated memory is still 174.1MB. Free memory was 142.3MB in the beginning and 140.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.64ms. Allocated memory is still 174.1MB. Free memory was 140.8MB in the beginning and 139.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 213.36ms. Allocated memory is still 174.1MB. Free memory was 139.5MB in the beginning and 129.2MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 4039.35ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 129.2MB in the beginning and 167.1MB in the end (delta: -37.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.49ms. Allocated memory is still 209.7MB. Free memory is still 167.1MB. 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 3 terminating modules (0 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function \old(y2) and consists of 6 locations. One deterministic module has affine ranking function y1 and consists of 5 locations. One nondeterministic module has affine ranking function y1 and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 75 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 70 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 133 IncrementalHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 52 mSDtfsCounter, 133 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq173 hnf91 smp91 dnf100 smp100 tf106 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-28 23:37:02,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b83a806-8d0a-4e3e-8753-b07865bca1fc/bin/uautomizer-verify-BQ2R08f2Ya/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