./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.12.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/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_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.12.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/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_b54e7444-7e62-41a7-930f-692c16614358/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 640b8fd5c71f51509139c5a180a4d7fcd9c913685cbc00020531a66381fc7b29 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:15:36,659 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:15:36,779 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-06 22:15:36,787 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:15:36,788 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:15:36,826 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:15:36,827 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:15:36,828 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:15:36,829 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:15:36,834 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:15:36,836 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:15:36,837 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 22:15:36,837 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 22:15:36,839 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 22:15:36,839 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 22:15:36,840 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 22:15:36,840 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 22:15:36,841 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:15:36,842 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 22:15:36,842 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:15:36,843 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:15:36,843 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 22:15:36,844 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 22:15:36,844 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 22:15:36,845 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:15:36,845 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:15:36,846 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 22:15:36,846 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:15:36,847 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:15:36,847 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:15:36,849 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:15:36,849 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:15:36,850 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 22:15:36,850 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_b54e7444-7e62-41a7-930f-692c16614358/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 640b8fd5c71f51509139c5a180a4d7fcd9c913685cbc00020531a66381fc7b29 [2023-11-06 22:15:37,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:15:37,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:15:37,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:15:37,151 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:15:37,152 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:15:37,153 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-restricted-15/b.12.c [2023-11-06 22:15:40,399 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:15:40,654 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:15:40,655 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/sv-benchmarks/c/termination-restricted-15/b.12.c [2023-11-06 22:15:40,662 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/data/1dc5450bd/54d5b4bf99ef4bfc9c21e1417f522d62/FLAGc6995de20 [2023-11-06 22:15:40,681 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/data/1dc5450bd/54d5b4bf99ef4bfc9c21e1417f522d62 [2023-11-06 22:15:40,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:15:40,689 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:15:40,692 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:15:40,692 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:15:40,698 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:15:40,699 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:15:40" (1/1) ... [2023-11-06 22:15:40,701 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9add45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:40, skipping insertion in model container [2023-11-06 22:15:40,701 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:15:40" (1/1) ... [2023-11-06 22:15:40,724 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:15:40,904 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:15:40,911 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:15:40,929 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:15:40,944 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:15:40,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:40 WrapperNode [2023-11-06 22:15:40,945 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:15:40,947 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:15:40,947 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:15:40,947 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:15:40,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:40" (1/1) ... [2023-11-06 22:15:40,960 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:40" (1/1) ... [2023-11-06 22:15:40,978 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2023-11-06 22:15:40,979 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:15:40,980 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:15:40,980 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:15:40,980 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:15:40,989 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:40" (1/1) ... [2023-11-06 22:15:40,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:40" (1/1) ... [2023-11-06 22:15:40,991 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:40" (1/1) ... [2023-11-06 22:15:40,991 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:40" (1/1) ... [2023-11-06 22:15:40,994 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:40" (1/1) ... [2023-11-06 22:15:40,999 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:40" (1/1) ... [2023-11-06 22:15:41,000 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:40" (1/1) ... [2023-11-06 22:15:41,001 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:40" (1/1) ... [2023-11-06 22:15:41,002 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:15:41,004 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:15:41,004 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:15:41,004 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:15:41,005 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:40" (1/1) ... [2023-11-06 22:15:41,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:15:41,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:15:41,042 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:15:41,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 22:15:41,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:15:41,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:15:41,179 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:15:41,181 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:15:41,258 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:15:41,265 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:15:41,265 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:15:41,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:15:41 BoogieIcfgContainer [2023-11-06 22:15:41,268 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:15:41,269 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 22:15:41,269 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 22:15:41,273 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 22:15:41,274 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:15:41,275 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 10:15:40" (1/3) ... [2023-11-06 22:15:41,276 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@590875d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:15:41, skipping insertion in model container [2023-11-06 22:15:41,276 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:15:41,276 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:40" (2/3) ... [2023-11-06 22:15:41,277 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@590875d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:15:41, skipping insertion in model container [2023-11-06 22:15:41,277 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:15:41,277 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:15:41" (3/3) ... [2023-11-06 22:15:41,279 INFO L332 chiAutomizerObserver]: Analyzing ICFG b.12.c [2023-11-06 22:15:41,341 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 22:15:41,341 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 22:15:41,341 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 22:15:41,342 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 22:15:41,342 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 22:15:41,342 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 22:15:41,342 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 22:15:41,343 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 22:15:41,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:15:41,366 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-06 22:15:41,367 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:15:41,367 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:15:41,374 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:15:41,374 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 22:15:41,374 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 22:15:41,375 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:15:41,376 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-06 22:15:41,376 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:15:41,377 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:15:41,377 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:15:41,377 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 22:15:41,386 INFO L748 eck$LassoCheckResult]: Stem: 4#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 8#L15-2true [2023-11-06 22:15:41,387 INFO L750 eck$LassoCheckResult]: Loop: 8#L15-2true assume !!(main_~x~0#1 > 0 || main_~y~0#1 > 0); 9#L12true assume main_~x~0#1 > 0;main_~x~0#1 := main_~x~0#1 - 1; 8#L15-2true [2023-11-06 22:15:41,393 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:41,394 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-06 22:15:41,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:41,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225765237] [2023-11-06 22:15:41,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:41,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:41,490 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:15:41,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:41,510 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:15:41,513 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:41,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 1 times [2023-11-06 22:15:41,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:41,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368160333] [2023-11-06 22:15:41,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:41,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:41,526 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:15:41,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:41,533 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:15:41,540 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:41,545 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2023-11-06 22:15:41,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:41,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151991999] [2023-11-06 22:15:41,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:41,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:41,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:41,558 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:15:41,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:41,603 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:15:41,767 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:15:41,768 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:15:41,768 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:15:41,769 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:15:41,769 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:15:41,769 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:15:41,769 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:15:41,769 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:15:41,770 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.12.c_Iteration1_Loop [2023-11-06 22:15:41,770 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:15:41,771 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:15:41,797 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 22:15:41,825 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:15:41,833 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 22:15:41,897 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:15:41,898 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:15:41,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:15:41,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:15:41,904 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:15:41,919 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:15:41,919 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:15:41,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-06 22:15:41,955 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:15:41,956 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 22:15:41,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:15:41,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:15:41,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:15:41,968 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:15:41,976 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:15:41,977 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:15:41,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-06 22:15:42,004 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:15:42,004 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 22:15:42,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:15:42,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:15:42,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:15:42,012 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:15:42,025 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:15:42,025 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:15:42,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-06 22:15:42,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:15:42,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:15:42,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:15:42,063 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:15:42,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-06 22:15:42,066 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:15:42,066 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:15:42,108 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:15:42,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:15:42,113 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:15:42,113 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:15:42,113 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:15:42,113 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:15:42,113 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:15:42,113 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:15:42,113 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:15:42,113 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:15:42,113 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.12.c_Iteration1_Loop [2023-11-06 22:15:42,114 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:15:42,114 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:15:42,116 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 22:15:42,121 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 22:15:42,127 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 22:15:42,189 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:15:42,194 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:15:42,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:15:42,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:15:42,196 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:15:42,210 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 22:15:42,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:15:42,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:15:42,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:15:42,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:15:42,235 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:15:42,240 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:15:42,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-06 22:15:42,255 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:15:42,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:15:42,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:15:42,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:15:42,271 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:15:42,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-06 22:15:42,275 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 22:15:42,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:15:42,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:15:42,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:15:42,286 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:15:42,292 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:15:42,292 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:15:42,306 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:15:42,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:15:42,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:15:42,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:15:42,322 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:15:42,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-06 22:15:42,328 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 22:15:42,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:15:42,341 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:15:42,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:15:42,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:15:42,342 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:15:42,344 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:15:42,344 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:15:42,354 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:15:42,362 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:15:42,363 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 22:15:42,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:15:42,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:15:42,395 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:15:42,403 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:15:42,403 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:15:42,403 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:15:42,404 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-06 22:15:42,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-06 22:15:42,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:15:42,412 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:15:42,436 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:15:42,449 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:15:42,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:15:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:15:42,465 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:15:42,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:15:42,471 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 22:15:42,512 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-06 22:15:42,514 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:15:42,562 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 33 transitions. Complement of second has 6 states. [2023-11-06 22:15:42,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:15:42,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:15:42,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-11-06 22:15:42,572 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2023-11-06 22:15:42,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:15:42,573 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-06 22:15:42,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:15:42,573 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-06 22:15:42,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:15:42,574 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 33 transitions. [2023-11-06 22:15:42,577 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-06 22:15:42,581 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 11 states and 16 transitions. [2023-11-06 22:15:42,582 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-06 22:15:42,582 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-11-06 22:15:42,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2023-11-06 22:15:42,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:15:42,583 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 16 transitions. [2023-11-06 22:15:42,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2023-11-06 22:15:42,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2023-11-06 22:15:42,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.5) internal successors, (15), 9 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 22:15:42,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 15 transitions. [2023-11-06 22:15:42,611 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 15 transitions. [2023-11-06 22:15:42,612 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2023-11-06 22:15:42,612 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 22:15:42,612 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 15 transitions. [2023-11-06 22:15:42,613 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-06 22:15:42,613 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:15:42,613 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:15:42,613 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-06 22:15:42,613 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 22:15:42,614 INFO L748 eck$LassoCheckResult]: Stem: 66#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 67#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_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~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;main_~c~0#1 := 0; 72#L15-2 assume !!(main_~x~0#1 > 0 || main_~y~0#1 > 0); 73#L12 [2023-11-06 22:15:42,614 INFO L750 eck$LassoCheckResult]: Loop: 73#L12 assume !(main_~x~0#1 > 0); 68#L15 assume main_~y~0#1 > 0;main_~y~0#1 := main_~y~0#1 - 1; 69#L15-2 assume !!(main_~x~0#1 > 0 || main_~y~0#1 > 0); 73#L12 [2023-11-06 22:15:42,614 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:42,615 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-06 22:15:42,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:42,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941157564] [2023-11-06 22:15:42,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:42,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:42,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:42,621 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:15:42,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:42,625 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:15:42,626 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:42,626 INFO L85 PathProgramCache]: Analyzing trace with hash 45767, now seen corresponding path program 1 times [2023-11-06 22:15:42,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:42,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3474666] [2023-11-06 22:15:42,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:42,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:42,635 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:15:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:42,639 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:15:42,640 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:42,640 INFO L85 PathProgramCache]: Analyzing trace with hash 889694400, now seen corresponding path program 1 times [2023-11-06 22:15:42,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:42,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366204563] [2023-11-06 22:15:42,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:42,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:42,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:42,648 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:15:42,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:42,654 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:15:42,692 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:15:42,692 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:15:42,692 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:15:42,693 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:15:42,693 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:15:42,693 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:15:42,693 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:15:42,693 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:15:42,693 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.12.c_Iteration2_Loop [2023-11-06 22:15:42,693 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:15:42,693 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:15:42,695 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 22:15:42,699 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 22:15:42,703 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 22:15:42,707 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 22:15:42,754 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:15:42,754 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:15:42,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:15:42,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:15:42,756 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:15:42,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-06 22:15:42,773 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:15:42,773 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:15:42,796 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:15:42,796 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 22:15:42,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:15:42,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:15:42,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:15:42,811 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:15:42,820 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:15:42,821 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:15:42,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-06 22:15:42,856 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:15:42,856 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:15:42,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:15:42,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:15:42,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:15:42,873 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:15:42,877 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:15:42,877 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:15:42,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-06 22:15:42,901 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:15:42,901 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:15:42,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:15:42,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:15:42,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:15:42,926 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:15:42,936 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:15:42,936 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:15:42,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-06 22:15:42,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:15:42,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:15:42,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:15:42,960 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:15:42,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-06 22:15:42,965 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:15:42,965 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:15:43,045 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:15:43,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:15:43,049 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:15:43,049 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:15:43,049 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:15:43,049 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:15:43,049 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:15:43,050 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:15:43,050 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:15:43,050 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:15:43,050 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.12.c_Iteration2_Loop [2023-11-06 22:15:43,050 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:15:43,050 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:15:43,052 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 22:15:43,060 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 22:15:43,066 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 22:15:43,070 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 22:15:43,126 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:15:43,126 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:15:43,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:15:43,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:15:43,132 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:15:43,136 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 22:15:43,149 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:15:43,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:15:43,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:15:43,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:15:43,153 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:15:43,153 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:15:43,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-06 22:15:43,165 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:15:43,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:15:43,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:15:43,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:15:43,176 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:15:43,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-06 22:15:43,185 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 22:15:43,198 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:15:43,198 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:15:43,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:15:43,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:15:43,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:15:43,200 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:15:43,200 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:15:43,209 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:15:43,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-06 22:15:43,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:15:43,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:15:43,221 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:15:43,229 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 22:15:43,241 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:15:43,241 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:15:43,241 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:15:43,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:15:43,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-06 22:15:43,253 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:15:43,254 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:15:43,267 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:15:43,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-06 22:15:43,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:15:43,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:15:43,282 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:15:43,291 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 22:15:43,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:15:43,304 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:15:43,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:15:43,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:15:43,305 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:15:43,306 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:15:43,306 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:15:43,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-06 22:15:43,327 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:15:43,329 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-06 22:15:43,329 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 22:15:43,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:15:43,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:15:43,336 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:15:43,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-06 22:15:43,342 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:15:43,342 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:15:43,342 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:15:43,342 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 22:15:43,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-06 22:15:43,350 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:15:43,368 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:43,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:15:43,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:15:43,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:15:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:15:43,385 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:15:43,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:15:43,450 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 22:15:43,451 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 22:15:43,451 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 15 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:15:43,485 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 15 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 36 states and 54 transitions. Complement of second has 7 states. [2023-11-06 22:15:43,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:15:43,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:15:43,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2023-11-06 22:15:43,487 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 3 letters. [2023-11-06 22:15:43,488 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:15:43,488 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 6 letters. Loop has 3 letters. [2023-11-06 22:15:43,488 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:15:43,488 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 6 letters. [2023-11-06 22:15:43,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:15:43,489 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 54 transitions. [2023-11-06 22:15:43,491 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-06 22:15:43,492 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 25 states and 36 transitions. [2023-11-06 22:15:43,493 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-06 22:15:43,493 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-11-06 22:15:43,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 36 transitions. [2023-11-06 22:15:43,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:15:43,493 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 36 transitions. [2023-11-06 22:15:43,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 36 transitions. [2023-11-06 22:15:43,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 21. [2023-11-06 22:15:43,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 20 states have internal predecessors, (32), 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 22:15:43,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 32 transitions. [2023-11-06 22:15:43,498 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 32 transitions. [2023-11-06 22:15:43,498 INFO L428 stractBuchiCegarLoop]: Abstraction has 21 states and 32 transitions. [2023-11-06 22:15:43,498 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-06 22:15:43,498 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 32 transitions. [2023-11-06 22:15:43,499 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-06 22:15:43,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:15:43,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:15:43,500 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-06 22:15:43,520 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 22:15:43,520 INFO L748 eck$LassoCheckResult]: Stem: 159#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 160#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 161#L15-2 assume !!(main_~x~0#1 > 0 || main_~y~0#1 > 0); 169#L12 assume !(main_~x~0#1 > 0); 154#L15 [2023-11-06 22:15:43,520 INFO L750 eck$LassoCheckResult]: Loop: 154#L15 assume !(main_~y~0#1 > 0); 155#L15-2 assume !!(main_~x~0#1 > 0 || main_~y~0#1 > 0); 162#L12 assume !(main_~x~0#1 > 0); 154#L15 [2023-11-06 22:15:43,521 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:43,521 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2023-11-06 22:15:43,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:43,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887055453] [2023-11-06 22:15:43,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:43,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:43,526 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:15:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:43,530 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:15:43,531 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:43,531 INFO L85 PathProgramCache]: Analyzing trace with hash 50329, now seen corresponding path program 1 times [2023-11-06 22:15:43,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:43,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702468862] [2023-11-06 22:15:43,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:43,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:43,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:15:43,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:15:43,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-11-06 22:15:43,599 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 22:15:43,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:15:43,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702468862] [2023-11-06 22:15:43,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702468862] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:15:43,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:15:43,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:15:43,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941430505] [2023-11-06 22:15:43,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:15:43,605 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 22:15:43,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:15:43,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:15:43,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:15:43,609 INFO L87 Difference]: Start difference. First operand 21 states and 32 transitions. cyclomatic complexity: 15 Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 22:15:43,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:15:43,642 INFO L93 Difference]: Finished difference Result 23 states and 31 transitions. [2023-11-06 22:15:43,643 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 31 transitions. [2023-11-06 22:15:43,652 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:15:43,653 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2023-11-06 22:15:43,653 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-06 22:15:43,653 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-06 22:15:43,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-06 22:15:43,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:15:43,653 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:15:43,653 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:15:43,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:15:43,655 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:15:43,656 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-06 22:15:43,656 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:15:43,656 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:15:43,656 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-06 22:15:43,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 10:15:43 BoogieIcfgContainer [2023-11-06 22:15:43,664 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 22:15:43,665 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:15:43,665 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:15:43,665 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:15:43,665 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:15:41" (3/4) ... [2023-11-06 22:15:43,667 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:15:43,672 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:15:43,676 INFO L158 Benchmark]: Toolchain (without parser) took 2984.34ms. Allocated memory is still 163.6MB. Free memory was 121.7MB in the beginning and 127.5MB in the end (delta: -5.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:15:43,677 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 113.2MB. Free memory was 63.1MB in the beginning and 62.9MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:15:43,678 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.61ms. Allocated memory is still 163.6MB. Free memory was 121.4MB in the beginning and 112.0MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:15:43,678 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.43ms. Allocated memory is still 163.6MB. Free memory was 112.0MB in the beginning and 110.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:15:43,679 INFO L158 Benchmark]: Boogie Preprocessor took 22.93ms. Allocated memory is still 163.6MB. Free memory was 110.6MB in the beginning and 109.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:15:43,679 INFO L158 Benchmark]: RCFGBuilder took 264.06ms. Allocated memory is still 163.6MB. Free memory was 109.5MB in the beginning and 101.4MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:15:43,686 INFO L158 Benchmark]: BuchiAutomizer took 2395.30ms. Allocated memory is still 163.6MB. Free memory was 101.1MB in the beginning and 128.4MB in the end (delta: -27.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:15:43,687 INFO L158 Benchmark]: Witness Printer took 7.59ms. Allocated memory is still 163.6MB. Free memory was 128.4MB in the beginning and 127.5MB in the end (delta: 826.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:15:43,689 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 113.2MB. Free memory was 63.1MB in the beginning and 62.9MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 253.61ms. Allocated memory is still 163.6MB. Free memory was 121.4MB in the beginning and 112.0MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.43ms. Allocated memory is still 163.6MB. Free memory was 112.0MB in the beginning and 110.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.93ms. Allocated memory is still 163.6MB. Free memory was 110.6MB in the beginning and 109.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 264.06ms. Allocated memory is still 163.6MB. Free memory was 109.5MB in the beginning and 101.4MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2395.30ms. Allocated memory is still 163.6MB. Free memory was 101.1MB in the beginning and 128.4MB in the end (delta: -27.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.59ms. Allocated memory is still 163.6MB. Free memory was 128.4MB in the beginning and 127.5MB in the end (delta: 826.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 18 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax206 hnf100 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 60ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s 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 22:15:43,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54e7444-7e62-41a7-930f-692c16614358/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