./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/GCD3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/GCD3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 88e7c75f540dddcc32c597b87fd18b0ea3baaf188ce55d074253e6818e0cf2b4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:59:31,471 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:59:31,578 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-06 21:59:31,587 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:59:31,588 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:59:31,631 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:59:31,632 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:59:31,633 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:59:31,634 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:59:31,639 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:59:31,639 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:59:31,640 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 21:59:31,640 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 21:59:31,642 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 21:59:31,643 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 21:59:31,643 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 21:59:31,644 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 21:59:31,644 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:59:31,645 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 21:59:31,645 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:59:31,646 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:59:31,646 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 21:59:31,647 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 21:59:31,647 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 21:59:31,648 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:59:31,648 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:59:31,649 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 21:59:31,649 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:59:31,650 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:59:31,650 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:59:31,652 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:59:31,652 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:59:31,653 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 21:59:31,653 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_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88e7c75f540dddcc32c597b87fd18b0ea3baaf188ce55d074253e6818e0cf2b4 [2023-11-06 21:59:32,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:59:32,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:59:32,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:59:32,069 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:59:32,070 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:59:32,071 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-restricted-15/GCD3.c [2023-11-06 21:59:35,155 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:59:35,368 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:59:35,369 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/sv-benchmarks/c/termination-restricted-15/GCD3.c [2023-11-06 21:59:35,377 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/data/ba7283b9f/d01777b50e50435db8ce3be56766f4c8/FLAG292ae441a [2023-11-06 21:59:35,397 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/data/ba7283b9f/d01777b50e50435db8ce3be56766f4c8 [2023-11-06 21:59:35,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:59:35,431 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:59:35,437 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:59:35,438 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:59:35,459 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:59:35,460 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:59:35" (1/1) ... [2023-11-06 21:59:35,461 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b7fc88c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:35, skipping insertion in model container [2023-11-06 21:59:35,488 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:59:35" (1/1) ... [2023-11-06 21:59:35,509 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:59:35,670 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:59:35,678 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:59:35,689 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:59:35,703 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:59:35,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:35 WrapperNode [2023-11-06 21:59:35,703 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:59:35,705 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:59:35,705 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:59:35,705 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:59:35,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:35" (1/1) ... [2023-11-06 21:59:35,717 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:35" (1/1) ... [2023-11-06 21:59:35,733 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 38 [2023-11-06 21:59:35,734 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:59:35,734 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:59:35,735 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:59:35,735 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:59:35,743 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:35" (1/1) ... [2023-11-06 21:59:35,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:35" (1/1) ... [2023-11-06 21:59:35,744 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:35" (1/1) ... [2023-11-06 21:59:35,745 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:35" (1/1) ... [2023-11-06 21:59:35,747 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:35" (1/1) ... [2023-11-06 21:59:35,751 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:35" (1/1) ... [2023-11-06 21:59:35,751 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:35" (1/1) ... [2023-11-06 21:59:35,752 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:35" (1/1) ... [2023-11-06 21:59:35,754 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:59:35,755 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:59:35,755 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:59:35,755 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:59:35,756 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:35" (1/1) ... [2023-11-06 21:59:35,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:35,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:35,791 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:35,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 21:59:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:59:35,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:59:35,930 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:59:35,932 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:59:36,107 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:59:36,114 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:59:36,114 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-06 21:59:36,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:59:36 BoogieIcfgContainer [2023-11-06 21:59:36,117 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:59:36,118 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 21:59:36,118 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 21:59:36,123 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 21:59:36,134 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 21:59:36,134 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 09:59:35" (1/3) ... [2023-11-06 21:59:36,135 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1872362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 09:59:36, skipping insertion in model container [2023-11-06 21:59:36,136 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 21:59:36,136 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:35" (2/3) ... [2023-11-06 21:59:36,137 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1872362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 09:59:36, skipping insertion in model container [2023-11-06 21:59:36,137 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 21:59:36,137 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:59:36" (3/3) ... [2023-11-06 21:59:36,139 INFO L332 chiAutomizerObserver]: Analyzing ICFG GCD3.c [2023-11-06 21:59:36,222 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 21:59:36,222 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 21:59:36,222 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 21:59:36,223 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 21:59:36,223 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 21:59:36,223 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 21:59:36,225 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 21:59:36,226 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 21:59:36,232 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:59:36,252 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-11-06 21:59:36,253 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:59:36,254 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:59:36,261 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 21:59:36,261 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-11-06 21:59:36,262 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 21:59:36,262 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:59:36,266 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-11-06 21:59:36,268 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:59:36,268 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:59:36,268 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 21:59:36,269 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-11-06 21:59:36,279 INFO L748 eck$LassoCheckResult]: Stem: 12#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 11#L13-2true [2023-11-06 21:59:36,280 INFO L750 eck$LassoCheckResult]: Loop: 11#L13-2true assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 7#L17true assume 0 == main_~y~0#1;main_~y~0#1 := main_~y~0#1; 13#L21-2true assume main_~xtmp~0#1 > 0; 9#L26-2true assume !(main_~xtmp~0#1 >= main_~y~0#1); 15#L26-3true main_~y~0#1 := main_~xtmp~0#1; 4#L25-1true main_~x~0#1 := main_~tmp~0#1; 11#L13-2true [2023-11-06 21:59:36,290 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:36,290 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-06 21:59:36,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:36,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382847272] [2023-11-06 21:59:36,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:36,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:36,387 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:59:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:36,407 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:59:36,410 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:36,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1216130396, now seen corresponding path program 1 times [2023-11-06 21:59:36,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:36,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016409782] [2023-11-06 21:59:36,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:36,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:36,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:59:36,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:36,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016409782] [2023-11-06 21:59:36,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016409782] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:36,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:59:36,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:59:36,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602685274] [2023-11-06 21:59:36,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:36,515 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 21:59:36,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:36,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:59:36,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:59:36,551 INFO L87 Difference]: Start difference. First operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:59:36,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:59:36,581 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2023-11-06 21:59:36,582 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2023-11-06 21:59:36,584 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-11-06 21:59:36,587 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 14 transitions. [2023-11-06 21:59:36,589 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-11-06 21:59:36,589 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-11-06 21:59:36,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2023-11-06 21:59:36,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:59:36,590 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-11-06 21:59:36,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2023-11-06 21:59:36,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-11-06 21:59:36,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:59:36,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2023-11-06 21:59:36,618 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-11-06 21:59:36,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:59:36,630 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-11-06 21:59:36,630 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 21:59:36,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2023-11-06 21:59:36,631 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-11-06 21:59:36,631 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:59:36,631 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:59:36,632 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 21:59:36,632 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:59:36,632 INFO L748 eck$LassoCheckResult]: Stem: 46#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 47#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 44#L13-2 [2023-11-06 21:59:36,632 INFO L750 eck$LassoCheckResult]: Loop: 44#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 39#L17 assume !(0 == main_~y~0#1); 40#L21 assume !(main_~y~0#1 < 0); 43#L21-2 assume !(main_~xtmp~0#1 > 0); 48#L31-2 assume !(main_~xtmp~0#1 < 0); 49#L31-3 main_~y~0#1 := main_~xtmp~0#1; 45#L25-1 main_~x~0#1 := main_~tmp~0#1; 44#L13-2 [2023-11-06 21:59:36,633 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:36,633 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-11-06 21:59:36,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:36,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645198596] [2023-11-06 21:59:36,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:36,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:36,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:36,639 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:59:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:36,643 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:59:36,643 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:36,644 INFO L85 PathProgramCache]: Analyzing trace with hash -900852200, now seen corresponding path program 1 times [2023-11-06 21:59:36,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:36,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141580032] [2023-11-06 21:59:36,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:36,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:36,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:59:36,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:36,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141580032] [2023-11-06 21:59:36,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141580032] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:36,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:59:36,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:59:36,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134627261] [2023-11-06 21:59:36,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:36,737 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 21:59:36,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:36,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:59:36,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:59:36,739 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:59:36,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:59:36,754 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2023-11-06 21:59:36,754 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 15 transitions. [2023-11-06 21:59:36,755 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2023-11-06 21:59:36,756 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 15 transitions. [2023-11-06 21:59:36,756 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-11-06 21:59:36,756 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-11-06 21:59:36,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 15 transitions. [2023-11-06 21:59:36,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:59:36,757 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 15 transitions. [2023-11-06 21:59:36,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 15 transitions. [2023-11-06 21:59:36,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 9. [2023-11-06 21:59:36,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:59:36,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2023-11-06 21:59:36,760 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2023-11-06 21:59:36,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:59:36,761 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2023-11-06 21:59:36,762 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-06 21:59:36,762 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2023-11-06 21:59:36,762 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-06 21:59:36,763 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:59:36,763 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:59:36,763 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 21:59:36,763 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:59:36,764 INFO L748 eck$LassoCheckResult]: Stem: 76#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 77#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 74#L13-2 [2023-11-06 21:59:36,764 INFO L750 eck$LassoCheckResult]: Loop: 74#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 69#L17 assume !(0 == main_~y~0#1); 70#L21 assume !(main_~y~0#1 < 0); 73#L21-2 assume main_~xtmp~0#1 > 0; 71#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 72#L26-3 main_~y~0#1 := main_~xtmp~0#1; 75#L25-1 main_~x~0#1 := main_~tmp~0#1; 74#L13-2 [2023-11-06 21:59:36,764 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:36,765 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2023-11-06 21:59:36,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:36,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76257627] [2023-11-06 21:59:36,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:36,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:36,770 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:59:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:36,774 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:59:36,775 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:36,775 INFO L85 PathProgramCache]: Analyzing trace with hash -901313945, now seen corresponding path program 1 times [2023-11-06 21:59:36,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:36,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686265715] [2023-11-06 21:59:36,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:36,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:36,787 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:59:36,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:36,796 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:59:36,797 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:36,797 INFO L85 PathProgramCache]: Analyzing trace with hash 644982885, now seen corresponding path program 1 times [2023-11-06 21:59:36,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:36,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151433954] [2023-11-06 21:59:36,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:36,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:36,807 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:59:36,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:36,815 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:59:36,941 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 21:59:36,942 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 21:59:36,942 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 21:59:36,942 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 21:59:36,943 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 21:59:36,943 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:36,944 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 21:59:36,944 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 21:59:36,944 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration3_Loop [2023-11-06 21:59:36,945 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 21:59:36,945 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 21:59:36,974 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:36,989 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:36,994 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:37,091 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 21:59:37,092 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 21:59:37,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:37,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:37,098 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:37,105 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 21:59:37,105 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:59:37,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-06 21:59:37,139 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 21:59:37,139 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 21:59:37,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:37,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:37,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:37,152 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:37,161 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 21:59:37,161 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:59:37,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-06 21:59:37,184 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 21:59:37,184 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 21:59:37,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:37,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:37,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:37,194 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:37,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-06 21:59:37,199 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 21:59:37,199 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:59:37,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:37,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:37,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:37,250 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:37,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-06 21:59:37,261 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 21:59:37,261 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:59:39,424 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 21:59:39,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:39,430 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 21:59:39,430 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 21:59:39,430 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 21:59:39,430 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 21:59:39,431 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 21:59:39,431 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:39,431 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 21:59:39,431 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 21:59:39,431 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration3_Loop [2023-11-06 21:59:39,431 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 21:59:39,431 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 21:59:39,434 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:39,438 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:39,442 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:39,534 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 21:59:39,538 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 21:59:39,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:39,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:39,559 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:39,565 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 [2023-11-06 21:59:39,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:59:39,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:59:39,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:59:39,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:59:39,584 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 21:59:39,584 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 21:59:39,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-06 21:59:39,604 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 21:59:39,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:39,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:39,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:39,615 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:39,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-06 21:59:39,624 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 [2023-11-06 21:59:39,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:59:39,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:59:39,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:59:39,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:59:39,639 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 21:59:39,639 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 21:59:39,652 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 21:59:39,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:39,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:39,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:39,664 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:39,678 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 [2023-11-06 21:59:39,690 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:59:39,691 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 21:59:39,691 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:59:39,691 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:59:39,691 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:59:39,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-06 21:59:39,695 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 21:59:39,695 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 21:59:39,709 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 21:59:39,715 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 21:59:39,716 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 21:59:39,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:39,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:39,747 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:39,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-06 21:59:39,752 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 21:59:39,752 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 21:59:39,752 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 21:59:39,753 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-11-06 21:59:39,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-06 21:59:39,766 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 21:59:39,788 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:39,796 WARN L260 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 21:59:39,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:39,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 21:59:39,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:39,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:59:39,923 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 [2023-11-06 21:59:39,925 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2 Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:59:40,011 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 33 transitions. Complement of second has 9 states. [2023-11-06 21:59:40,013 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 [2023-11-06 21:59:40,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:59:40,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2023-11-06 21:59:40,016 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 7 letters. [2023-11-06 21:59:40,017 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:59:40,017 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 9 letters. Loop has 7 letters. [2023-11-06 21:59:40,018 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:59:40,018 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 14 letters. [2023-11-06 21:59:40,019 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:59:40,019 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 33 transitions. [2023-11-06 21:59:40,021 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-06 21:59:40,022 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 25 states and 29 transitions. [2023-11-06 21:59:40,022 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2023-11-06 21:59:40,022 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2023-11-06 21:59:40,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 29 transitions. [2023-11-06 21:59:40,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 21:59:40,023 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 29 transitions. [2023-11-06 21:59:40,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 29 transitions. [2023-11-06 21:59:40,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 22. [2023-11-06 21:59:40,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:59:40,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2023-11-06 21:59:40,027 INFO L240 hiAutomatonCegarLoop]: Abstraction has 22 states and 25 transitions. [2023-11-06 21:59:40,027 INFO L428 stractBuchiCegarLoop]: Abstraction has 22 states and 25 transitions. [2023-11-06 21:59:40,027 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-06 21:59:40,027 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 25 transitions. [2023-11-06 21:59:40,028 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-06 21:59:40,028 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:59:40,028 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:59:40,029 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:59:40,029 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-06 21:59:40,029 INFO L748 eck$LassoCheckResult]: Stem: 177#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 178#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 179#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 162#L17 assume !(0 == main_~y~0#1); 163#L21 assume !(main_~y~0#1 < 0); 170#L21-2 assume main_~xtmp~0#1 > 0; 166#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 167#L26-2 [2023-11-06 21:59:40,030 INFO L750 eck$LassoCheckResult]: Loop: 167#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 167#L26-2 [2023-11-06 21:59:40,030 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:40,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1810725014, now seen corresponding path program 1 times [2023-11-06 21:59:40,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:40,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241883985] [2023-11-06 21:59:40,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:40,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:40,039 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:59:40,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:40,045 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:59:40,046 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:40,046 INFO L85 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2023-11-06 21:59:40,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:40,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274930749] [2023-11-06 21:59:40,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:40,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:40,050 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:59:40,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:40,053 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:59:40,054 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:40,054 INFO L85 PathProgramCache]: Analyzing trace with hash 297900620, now seen corresponding path program 2 times [2023-11-06 21:59:40,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:40,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490262221] [2023-11-06 21:59:40,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:40,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:40,063 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:59:40,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:40,071 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:59:40,146 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 21:59:40,147 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 21:59:40,147 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 21:59:40,147 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 21:59:40,147 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 21:59:40,147 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:40,147 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 21:59:40,148 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 21:59:40,148 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration4_Lasso [2023-11-06 21:59:40,148 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 21:59:40,148 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 21:59:40,150 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:40,154 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:40,173 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:40,176 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:40,179 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:40,182 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:40,274 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 21:59:40,274 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 21:59:40,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:40,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:40,276 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:40,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-06 21:59:40,282 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 21:59:40,282 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:59:40,308 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 21:59:40,308 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 21:59:40,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:40,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:40,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:40,320 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:40,324 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 21:59:40,324 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:59:40,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-06 21:59:40,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:40,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:40,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:40,370 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:40,374 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 21:59:40,374 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:59:40,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-06 21:59:40,564 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 21:59:40,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:40,572 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 21:59:40,572 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 21:59:40,572 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 21:59:40,572 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 21:59:40,572 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 21:59:40,572 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:40,572 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 21:59:40,572 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 21:59:40,573 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration4_Lasso [2023-11-06 21:59:40,573 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 21:59:40,573 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 21:59:40,575 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:40,579 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:40,585 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:40,587 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:40,610 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:40,614 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:40,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:40,724 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 21:59:40,724 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 21:59:40,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:40,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:40,726 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:40,742 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 [2023-11-06 21:59:40,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-06 21:59:40,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:59:40,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:59:40,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:59:40,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:59:40,760 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 21:59:40,760 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 21:59:40,771 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 21:59:40,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:40,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:40,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:40,781 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:40,793 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 [2023-11-06 21:59:40,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:59:40,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 21:59:40,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:59:40,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:59:40,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:59:40,807 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 21:59:40,807 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 21:59:40,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-06 21:59:40,820 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 21:59:40,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:40,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:40,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:40,825 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:40,837 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 [2023-11-06 21:59:40,849 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:59:40,850 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 21:59:40,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:59:40,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:59:40,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:59:40,850 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 21:59:40,851 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 21:59:40,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-06 21:59:40,856 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 21:59:40,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:40,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:40,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:40,866 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:40,878 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 21:59:40,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-06 21:59:40,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:59:40,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:59:40,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:59:40,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:59:40,906 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 21:59:40,906 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 21:59:40,921 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 21:59:40,931 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-11-06 21:59:40,931 INFO L444 ModelExtractionUtils]: 9 out of 16 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 21:59:40,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:40,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:40,935 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:40,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-06 21:59:40,944 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 21:59:40,970 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2023-11-06 21:59:40,970 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 21:59:40,971 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1) = 2*ULTIMATE.start_main_~xtmp~0#1 + 1 Supporting invariants [1*ULTIMATE.start_main_~y~0#1 - 1 >= 0, 1*ULTIMATE.start_main_~xtmp~0#1 >= 0] [2023-11-06 21:59:40,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:40,985 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2023-11-06 21:59:41,027 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:41,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:41,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 21:59:41,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:41,108 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 21:59:41,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:41,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:59:41,110 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-11-06 21:59:41,111 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 25 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:59:41,163 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 25 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 32 transitions. Complement of second has 6 states. [2023-11-06 21:59:41,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 21:59:41,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:59:41,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2023-11-06 21:59:41,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 1 letters. [2023-11-06 21:59:41,165 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:59:41,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 8 letters. Loop has 1 letters. [2023-11-06 21:59:41,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:59:41,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 2 letters. [2023-11-06 21:59:41,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:59:41,166 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions. [2023-11-06 21:59:41,167 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-06 21:59:41,168 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 25 states and 30 transitions. [2023-11-06 21:59:41,168 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2023-11-06 21:59:41,168 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2023-11-06 21:59:41,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 30 transitions. [2023-11-06 21:59:41,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 21:59:41,169 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 30 transitions. [2023-11-06 21:59:41,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 30 transitions. [2023-11-06 21:59:41,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2023-11-06 21:59:41,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:59:41,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2023-11-06 21:59:41,172 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 29 transitions. [2023-11-06 21:59:41,172 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2023-11-06 21:59:41,172 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-06 21:59:41,172 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2023-11-06 21:59:41,173 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-06 21:59:41,173 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:59:41,173 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:59:41,173 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:59:41,174 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:59:41,174 INFO L748 eck$LassoCheckResult]: Stem: 284#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 285#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 287#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 268#L17 assume !(0 == main_~y~0#1); 269#L21 assume !(main_~y~0#1 < 0); 276#L21-2 assume main_~xtmp~0#1 > 0; 272#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 273#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 275#L26-3 [2023-11-06 21:59:41,174 INFO L750 eck$LassoCheckResult]: Loop: 275#L26-3 main_~y~0#1 := main_~xtmp~0#1; 281#L25-1 main_~x~0#1 := main_~tmp~0#1; 278#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 279#L17 assume !(0 == main_~y~0#1); 291#L21 assume !(main_~y~0#1 < 0); 290#L21-2 assume main_~xtmp~0#1 > 0; 289#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 275#L26-3 [2023-11-06 21:59:41,174 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:41,174 INFO L85 PathProgramCache]: Analyzing trace with hash 297900618, now seen corresponding path program 1 times [2023-11-06 21:59:41,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:41,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31623961] [2023-11-06 21:59:41,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:41,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:41,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:41,181 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:59:41,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:41,187 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:59:41,188 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:41,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1601495771, now seen corresponding path program 2 times [2023-11-06 21:59:41,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:41,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774185375] [2023-11-06 21:59:41,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:41,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:41,194 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:59:41,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:41,200 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:59:41,200 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:41,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1474170556, now seen corresponding path program 1 times [2023-11-06 21:59:41,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:41,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266384669] [2023-11-06 21:59:41,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:41,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:41,360 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 21:59:41,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:41,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266384669] [2023-11-06 21:59:41,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266384669] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:59:41,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024881650] [2023-11-06 21:59:41,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:41,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:59:41,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:41,363 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:59:41,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-06 21:59:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:41,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 21:59:41,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:41,456 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 21:59:41,456 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:59:41,560 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 21:59:41,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024881650] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:59:41,561 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:59:41,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2023-11-06 21:59:41,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121882969] [2023-11-06 21:59:41,562 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:59:41,618 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 21:59:41,618 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 21:59:41,618 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 21:59:41,618 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 21:59:41,619 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 21:59:41,619 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:41,619 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 21:59:41,619 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 21:59:41,619 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration5_Loop [2023-11-06 21:59:41,619 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 21:59:41,619 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 21:59:41,622 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:41,626 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:41,649 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:41,728 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 21:59:41,728 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 21:59:41,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:41,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:41,735 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:41,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-06 21:59:41,741 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 21:59:41,741 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:59:41,762 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 21:59:41,763 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 21:59:41,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:41,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:41,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:41,773 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:41,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-06 21:59:41,781 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 21:59:41,781 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:59:41,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:41,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:41,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:41,818 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:41,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-06 21:59:41,820 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 21:59:41,820 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:59:43,645 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 21:59:43,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:43,650 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 21:59:43,651 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 21:59:43,651 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 21:59:43,651 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 21:59:43,651 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 21:59:43,651 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:43,651 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 21:59:43,651 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 21:59:43,651 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration5_Loop [2023-11-06 21:59:43,651 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 21:59:43,651 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 21:59:43,653 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:43,661 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:43,673 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:43,738 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 21:59:43,738 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 21:59:43,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:43,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:43,740 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:43,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-06 21:59:43,747 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 [2023-11-06 21:59:43,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:59:43,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:59:43,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:59:43,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:59:43,761 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 21:59:43,761 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 21:59:43,771 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 21:59:43,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:43,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:43,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:43,786 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:43,793 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 [2023-11-06 21:59:43,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:59:43,805 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 21:59:43,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:59:43,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:59:43,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:59:43,808 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 21:59:43,808 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 21:59:43,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-06 21:59:43,832 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 21:59:43,837 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 21:59:43,837 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 21:59:43,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:43,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:43,841 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:43,845 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 21:59:43,845 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 21:59:43,845 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 21:59:43,845 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1) = 1*ULTIMATE.start_main_~xtmp~0#1 Supporting invariants [] [2023-11-06 21:59:43,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-06 21:59:43,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:43,854 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 21:59:43,867 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:43,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:43,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 21:59:43,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:43,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:43,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 21:59:43,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:43,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:59:43,926 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 [2023-11-06 21:59:43,927 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:59:43,971 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 59 states and 73 transitions. Complement of second has 8 states. [2023-11-06 21:59:43,972 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 [2023-11-06 21:59:43,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:59:43,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2023-11-06 21:59:43,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 8 letters. Loop has 7 letters. [2023-11-06 21:59:43,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:59:43,974 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 15 letters. Loop has 7 letters. [2023-11-06 21:59:43,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:59:43,975 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 8 letters. Loop has 14 letters. [2023-11-06 21:59:43,975 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:59:43,975 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 73 transitions. [2023-11-06 21:59:43,977 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-06 21:59:43,978 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 54 states and 68 transitions. [2023-11-06 21:59:43,979 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2023-11-06 21:59:43,979 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2023-11-06 21:59:43,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 68 transitions. [2023-11-06 21:59:43,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 21:59:43,980 INFO L218 hiAutomatonCegarLoop]: Abstraction has 54 states and 68 transitions. [2023-11-06 21:59:43,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 68 transitions. [2023-11-06 21:59:43,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 47. [2023-11-06 21:59:43,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 47 states have (on average 1.2553191489361701) internal successors, (59), 46 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:59:43,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 59 transitions. [2023-11-06 21:59:43,985 INFO L240 hiAutomatonCegarLoop]: Abstraction has 47 states and 59 transitions. [2023-11-06 21:59:43,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:43,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 21:59:43,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-06 21:59:43,986 INFO L87 Difference]: Start difference. First operand 47 states and 59 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:59:44,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:59:44,114 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2023-11-06 21:59:44,114 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 59 transitions. [2023-11-06 21:59:44,116 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-06 21:59:44,117 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 31 states and 37 transitions. [2023-11-06 21:59:44,117 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2023-11-06 21:59:44,117 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2023-11-06 21:59:44,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 37 transitions. [2023-11-06 21:59:44,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 21:59:44,118 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 37 transitions. [2023-11-06 21:59:44,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 37 transitions. [2023-11-06 21:59:44,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 24. [2023-11-06 21:59:44,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 23 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:59:44,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2023-11-06 21:59:44,129 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 28 transitions. [2023-11-06 21:59:44,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 21:59:44,140 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2023-11-06 21:59:44,141 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-06 21:59:44,141 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 28 transitions. [2023-11-06 21:59:44,142 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-06 21:59:44,142 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:59:44,142 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:59:44,142 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:59:44,148 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:59:44,148 INFO L748 eck$LassoCheckResult]: Stem: 636#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 637#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 639#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 645#L17 assume !(0 == main_~y~0#1); 644#L21 assume !(main_~y~0#1 < 0); 643#L21-2 assume main_~xtmp~0#1 > 0; 642#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 641#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 630#L26-3 [2023-11-06 21:59:44,148 INFO L750 eck$LassoCheckResult]: Loop: 630#L26-3 main_~y~0#1 := main_~xtmp~0#1; 640#L25-1 main_~x~0#1 := main_~tmp~0#1; 632#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 633#L17 assume !(0 == main_~y~0#1); 648#L21 assume !(main_~y~0#1 < 0); 638#L21-2 assume main_~xtmp~0#1 > 0; 627#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 628#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 630#L26-3 [2023-11-06 21:59:44,149 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:44,149 INFO L85 PathProgramCache]: Analyzing trace with hash 297900618, now seen corresponding path program 2 times [2023-11-06 21:59:44,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:44,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150764593] [2023-11-06 21:59:44,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:44,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:44,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:44,164 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:59:44,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:44,176 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:59:44,177 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:44,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1893238745, now seen corresponding path program 1 times [2023-11-06 21:59:44,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:44,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586432588] [2023-11-06 21:59:44,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:44,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:44,192 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:59:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:44,197 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:59:44,198 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:44,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1545352926, now seen corresponding path program 2 times [2023-11-06 21:59:44,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:44,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253524805] [2023-11-06 21:59:44,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:44,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:44,219 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:59:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:44,234 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:59:44,301 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 21:59:44,301 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 21:59:44,302 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 21:59:44,302 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 21:59:44,302 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 21:59:44,302 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:44,302 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 21:59:44,302 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 21:59:44,302 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration6_Loop [2023-11-06 21:59:44,303 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 21:59:44,303 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 21:59:44,304 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:44,319 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:44,323 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:44,383 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 21:59:44,383 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 21:59:44,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:44,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:44,386 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:44,389 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 21:59:44,390 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:59:44,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-06 21:59:44,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:44,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:44,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:44,446 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:44,451 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 21:59:44,451 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:59:44,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-06 21:59:45,527 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 21:59:45,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-11-06 21:59:45,532 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 21:59:45,532 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 21:59:45,532 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 21:59:45,532 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 21:59:45,532 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 21:59:45,532 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:45,532 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 21:59:45,532 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 21:59:45,532 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration6_Loop [2023-11-06 21:59:45,533 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 21:59:45,533 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 21:59:45,534 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:45,558 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:45,564 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:45,629 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 21:59:45,630 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 21:59:45,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:45,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:45,631 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:45,636 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 [2023-11-06 21:59:45,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-06 21:59:45,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:59:45,650 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 21:59:45,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:59:45,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:59:45,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:59:45,653 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 21:59:45,653 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 21:59:45,674 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 21:59:45,678 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 21:59:45,678 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 21:59:45,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:45,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:45,682 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:45,684 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 21:59:45,684 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 21:59:45,684 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 21:59:45,684 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1) = 1*ULTIMATE.start_main_~xtmp~0#1 Supporting invariants [] [2023-11-06 21:59:45,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-06 21:59:45,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:45,693 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 21:59:45,706 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:45,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:45,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 21:59:45,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:45,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 21:59:45,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:45,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 21:59:45,812 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 [2023-11-06 21:59:45,812 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 28 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:59:45,848 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 28 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 55 transitions. Complement of second has 6 states. [2023-11-06 21:59:45,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 21:59:45,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:59:45,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-11-06 21:59:45,850 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 8 letters. [2023-11-06 21:59:45,850 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:59:45,850 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 8 letters. [2023-11-06 21:59:45,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:59:45,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 16 letters. [2023-11-06 21:59:45,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:59:45,851 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 55 transitions. [2023-11-06 21:59:45,852 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 21:59:45,853 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 38 states and 46 transitions. [2023-11-06 21:59:45,853 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2023-11-06 21:59:45,853 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2023-11-06 21:59:45,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 46 transitions. [2023-11-06 21:59:45,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 21:59:45,854 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 46 transitions. [2023-11-06 21:59:45,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 46 transitions. [2023-11-06 21:59:45,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 29. [2023-11-06 21:59:45,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.206896551724138) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:59:45,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2023-11-06 21:59:45,857 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 35 transitions. [2023-11-06 21:59:45,857 INFO L428 stractBuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2023-11-06 21:59:45,857 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-06 21:59:45,858 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 35 transitions. [2023-11-06 21:59:45,858 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 21:59:45,858 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:59:45,859 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:59:45,859 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-06 21:59:45,859 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-06 21:59:45,860 INFO L748 eck$LassoCheckResult]: Stem: 778#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 779#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 782#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 795#L17 assume !(0 == main_~y~0#1); 794#L21 assume !(main_~y~0#1 < 0); 792#L21-2 assume main_~xtmp~0#1 > 0; 790#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 787#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 785#L26-3 main_~y~0#1 := main_~xtmp~0#1; 780#L25-1 main_~x~0#1 := main_~tmp~0#1; 776#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 767#L17 assume !(0 == main_~y~0#1); 768#L21 assume !(main_~y~0#1 < 0); 774#L21-2 assume main_~xtmp~0#1 > 0; 771#L26-2 [2023-11-06 21:59:45,860 INFO L750 eck$LassoCheckResult]: Loop: 771#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 771#L26-2 [2023-11-06 21:59:45,860 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:45,860 INFO L85 PathProgramCache]: Analyzing trace with hash 186101220, now seen corresponding path program 3 times [2023-11-06 21:59:45,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:45,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554886750] [2023-11-06 21:59:45,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:45,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:45,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:45,868 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:59:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:45,874 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:59:45,874 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:45,875 INFO L85 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 2 times [2023-11-06 21:59:45,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:45,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289291185] [2023-11-06 21:59:45,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:45,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:45,878 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:59:45,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:45,880 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:59:45,880 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:45,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1474170558, now seen corresponding path program 4 times [2023-11-06 21:59:45,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:45,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913948859] [2023-11-06 21:59:45,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:45,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:45,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:45,888 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:59:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:45,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:45,918 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:59:45,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:45,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:46,026 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 21:59:46,026 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 21:59:46,026 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 21:59:46,026 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 21:59:46,026 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 21:59:46,026 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:46,026 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 21:59:46,027 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 21:59:46,027 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration7_Lasso [2023-11-06 21:59:46,027 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 21:59:46,027 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 21:59:46,028 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:46,034 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:46,038 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:46,056 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:46,059 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:46,061 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:46,127 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 21:59:46,127 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 21:59:46,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:46,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:46,131 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:46,136 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 21:59:46,136 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:59:46,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-06 21:59:46,149 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 21:59:46,149 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 21:59:46,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2023-11-06 21:59:46,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:46,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:46,153 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:46,157 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 21:59:46,157 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:59:46,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-06 21:59:46,184 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 21:59:46,184 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 21:59:46,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:46,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:46,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:46,190 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:46,196 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 21:59:46,196 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:59:46,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-06 21:59:46,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:46,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:46,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:46,233 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:46,240 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 21:59:46,240 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:59:46,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-06 21:59:46,395 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 21:59:46,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:46,400 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 21:59:46,400 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 21:59:46,400 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 21:59:46,400 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 21:59:46,400 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 21:59:46,400 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:46,400 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 21:59:46,400 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 21:59:46,401 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration7_Lasso [2023-11-06 21:59:46,401 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 21:59:46,401 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 21:59:46,402 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:46,407 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:46,421 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:46,424 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:46,427 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:46,429 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:59:46,489 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 21:59:46,489 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 21:59:46,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:46,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:46,490 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:46,500 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 [2023-11-06 21:59:46,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-06 21:59:46,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:59:46,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:59:46,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:59:46,511 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:59:46,513 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 21:59:46,513 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 21:59:46,516 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 21:59:46,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:46,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:46,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:46,520 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:46,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-06 21:59:46,526 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 [2023-11-06 21:59:46,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:59:46,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:59:46,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:59:46,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:59:46,541 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 21:59:46,541 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 21:59:46,560 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 21:59:46,575 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2023-11-06 21:59:46,575 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 6 variables to zero. [2023-11-06 21:59:46,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:59:46,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:46,580 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:46,585 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 21:59:46,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-06 21:59:46,606 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-11-06 21:59:46,606 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 21:59:46,606 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1, ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~xtmp~0#1 - 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [1*ULTIMATE.start_main_~y~0#1 - 1 >= 0] [2023-11-06 21:59:46,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2023-11-06 21:59:46,617 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-11-06 21:59:46,644 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:46,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 21:59:46,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:46,710 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 21:59:46,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:46,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:59:46,711 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-11-06 21:59:46,711 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:59:46,750 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 38 transitions. Complement of second has 6 states. [2023-11-06 21:59:46,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 21:59:46,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:59:46,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2023-11-06 21:59:46,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 14 letters. Loop has 1 letters. [2023-11-06 21:59:46,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:59:46,755 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 21:59:46,785 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:46,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:46,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 21:59:46,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:46,841 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 21:59:46,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:46,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:59:46,842 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2023-11-06 21:59:46,842 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:59:46,877 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 38 transitions. Complement of second has 6 states. [2023-11-06 21:59:46,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 21:59:46,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:59:46,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2023-11-06 21:59:46,880 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 14 letters. Loop has 1 letters. [2023-11-06 21:59:46,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:59:46,880 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 21:59:46,901 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:46,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:46,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 21:59:46,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:46,964 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 21:59:46,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:46,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:59:46,965 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-11-06 21:59:46,965 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:59:46,995 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 33 states and 40 transitions. Complement of second has 5 states. [2023-11-06 21:59:46,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 21:59:46,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:59:46,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2023-11-06 21:59:46,996 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 14 letters. Loop has 1 letters. [2023-11-06 21:59:46,996 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:59:46,996 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 15 letters. Loop has 1 letters. [2023-11-06 21:59:46,996 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:59:46,997 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 14 letters. Loop has 2 letters. [2023-11-06 21:59:46,997 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:59:46,997 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 40 transitions. [2023-11-06 21:59:46,998 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 21:59:46,998 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2023-11-06 21:59:46,998 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-06 21:59:46,998 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-06 21:59:46,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-06 21:59:46,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:59:46,998 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 21:59:46,998 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 21:59:46,998 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 21:59:46,998 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-06 21:59:46,998 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-06 21:59:46,998 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 21:59:46,999 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-06 21:59:47,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 09:59:47 BoogieIcfgContainer [2023-11-06 21:59:47,006 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 21:59:47,006 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 21:59:47,006 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 21:59:47,006 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 21:59:47,007 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:59:36" (3/4) ... [2023-11-06 21:59:47,009 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 21:59:47,010 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 21:59:47,010 INFO L158 Benchmark]: Toolchain (without parser) took 11579.02ms. Allocated memory was 121.6MB in the beginning and 213.9MB in the end (delta: 92.3MB). Free memory was 96.1MB in the beginning and 128.5MB in the end (delta: -32.4MB). Peak memory consumption was 59.4MB. Max. memory is 16.1GB. [2023-11-06 21:59:47,010 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 121.6MB. Free memory is still 90.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:59:47,011 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.56ms. Allocated memory is still 121.6MB. Free memory was 96.1MB in the beginning and 86.4MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 21:59:47,011 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.32ms. Allocated memory is still 121.6MB. Free memory was 86.4MB in the beginning and 85.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:59:47,011 INFO L158 Benchmark]: Boogie Preprocessor took 19.78ms. Allocated memory is still 121.6MB. Free memory was 84.8MB in the beginning and 84.1MB in the end (delta: 728.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:59:47,012 INFO L158 Benchmark]: RCFGBuilder took 362.21ms. Allocated memory is still 121.6MB. Free memory was 83.8MB in the beginning and 75.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 21:59:47,012 INFO L158 Benchmark]: BuchiAutomizer took 10887.63ms. Allocated memory was 121.6MB in the beginning and 213.9MB in the end (delta: 92.3MB). Free memory was 75.0MB in the beginning and 128.5MB in the end (delta: -53.5MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. [2023-11-06 21:59:47,012 INFO L158 Benchmark]: Witness Printer took 3.36ms. Allocated memory is still 213.9MB. Free memory is still 128.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:59:47,014 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 121.6MB. Free memory is still 90.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.56ms. Allocated memory is still 121.6MB. Free memory was 96.1MB in the beginning and 86.4MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.32ms. Allocated memory is still 121.6MB. Free memory was 86.4MB in the beginning and 85.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.78ms. Allocated memory is still 121.6MB. Free memory was 84.8MB in the beginning and 84.1MB in the end (delta: 728.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 362.21ms. Allocated memory is still 121.6MB. Free memory was 83.8MB in the beginning and 75.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 10887.63ms. Allocated memory was 121.6MB in the beginning and 213.9MB in the end (delta: 92.3MB). Free memory was 75.0MB in the beginning and 128.5MB in the end (delta: -53.5MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. * Witness Printer took 3.36ms. Allocated memory is still 213.9MB. Free memory is still 128.5MB. 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 8 terminating modules (3 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function ((2 * xtmp) + 1) and consists of 4 locations. One deterministic module has affine ranking function xtmp and consists of 5 locations. One deterministic module has affine ranking function xtmp and consists of 4 locations. One nondeterministic module has affine ranking function (((2 * xtmp) + (-2 * y)) + 1) and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.7s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 9.3s. Construction of modules took 0.1s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 31 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 125 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 122 mSDsluCounter, 95 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 199 IncrementalHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 66 mSDtfsCounter, 199 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax150 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq170 hnf91 smp96 dnf100 smp100 tf103 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 65ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 5.9s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-06 21:59:47,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:47,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-06 21:59:47,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34c1c814-5fa1-4f57-bfd0-aea01056cdf3/bin/uautomizer-verify-WvqO1wxjHP/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