./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.16.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a 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_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.16.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bd5ab01fc166812a75c8bdc5c42111290012e12e0fb0aba380271d0f3f7f7767 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:02:23,809 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:02:23,900 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-31 22:02:23,907 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:02:23,909 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:02:23,946 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:02:23,948 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:02:23,948 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:02:23,949 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:02:23,950 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:02:23,951 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:02:23,951 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:02:23,951 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:02:23,954 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:02:23,954 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:02:23,955 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:02:23,955 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:02:23,955 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:02:23,956 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:02:23,956 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:02:23,956 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:02:23,957 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:02:23,957 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:02:23,957 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:02:23,957 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:02:23,958 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:02:23,958 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:02:23,958 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:02:23,958 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:02:23,959 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:02:23,959 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:02:23,959 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:02:23,960 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:02:23,960 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:02:23,960 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:02:23,961 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:02:23,961 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_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd5ab01fc166812a75c8bdc5c42111290012e12e0fb0aba380271d0f3f7f7767 [2024-10-31 22:02:24,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:02:24,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:02:24,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:02:24,238 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:02:24,238 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:02:24,240 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/termination-restricted-15/b.16.c Unable to find full path for "g++" [2024-10-31 22:02:26,356 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:02:26,536 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:02:26,537 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/sv-benchmarks/c/termination-restricted-15/b.16.c [2024-10-31 22:02:26,545 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/data/3f70642b1/8f638a5bcbec4bd5ab47e1ffa90dc342/FLAG3cf71eb84 [2024-10-31 22:02:26,561 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/data/3f70642b1/8f638a5bcbec4bd5ab47e1ffa90dc342 [2024-10-31 22:02:26,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:02:26,569 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:02:26,571 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:02:26,573 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:02:26,581 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:02:26,582 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:02:26" (1/1) ... [2024-10-31 22:02:26,584 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d567b11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:26, skipping insertion in model container [2024-10-31 22:02:26,587 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:02:26" (1/1) ... [2024-10-31 22:02:26,605 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:02:26,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:02:26,817 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:02:26,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:02:26,850 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:02:26,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:26 WrapperNode [2024-10-31 22:02:26,851 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:02:26,853 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:02:26,853 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:02:26,853 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:02:26,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:26" (1/1) ... [2024-10-31 22:02:26,868 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:26" (1/1) ... [2024-10-31 22:02:26,889 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2024-10-31 22:02:26,891 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:02:26,892 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:02:26,892 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:02:26,892 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:02:26,905 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:26" (1/1) ... [2024-10-31 22:02:26,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:26" (1/1) ... [2024-10-31 22:02:26,906 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:26" (1/1) ... [2024-10-31 22:02:26,913 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-31 22:02:26,914 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:26" (1/1) ... [2024-10-31 22:02:26,914 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:26" (1/1) ... [2024-10-31 22:02:26,916 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:26" (1/1) ... [2024-10-31 22:02:26,921 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:26" (1/1) ... [2024-10-31 22:02:26,921 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:26" (1/1) ... [2024-10-31 22:02:26,922 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:26" (1/1) ... [2024-10-31 22:02:26,924 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:02:26,926 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:02:26,926 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:02:26,926 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:02:26,927 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:26" (1/1) ... [2024-10-31 22:02:26,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:26,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:26,965 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:26,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:02:26,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:02:26,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:02:27,091 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:02:27,093 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:02:27,154 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-10-31 22:02:27,155 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:02:27,167 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:02:27,168 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:02:27,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:02:27 BoogieIcfgContainer [2024-10-31 22:02:27,168 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:02:27,170 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:02:27,170 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:02:27,173 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:02:27,174 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:02:27,174 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:02:26" (1/3) ... [2024-10-31 22:02:27,175 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c78e125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:02:27, skipping insertion in model container [2024-10-31 22:02:27,175 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:02:27,175 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:26" (2/3) ... [2024-10-31 22:02:27,176 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c78e125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:02:27, skipping insertion in model container [2024-10-31 22:02:27,176 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:02:27,176 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:02:27" (3/3) ... [2024-10-31 22:02:27,178 INFO L332 chiAutomizerObserver]: Analyzing ICFG b.16.c [2024-10-31 22:02:27,237 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:02:27,237 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:02:27,237 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:02:27,237 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:02:27,237 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:02:27,237 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:02:27,237 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:02:27,238 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:02:27,241 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) [2024-10-31 22:02:27,255 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-31 22:02:27,256 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:02:27,256 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:02:27,260 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:02:27,260 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:02:27,261 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:02:27,261 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) [2024-10-31 22:02:27,262 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-31 22:02:27,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:02:27,262 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:02:27,263 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:02:27,263 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:02:27,271 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 9#L11-2true [2024-10-31 22:02:27,271 INFO L747 eck$LassoCheckResult]: Loop: 9#L11-2true assume !!(main_~x~0#1 > 0); 2#L12-2true assume !(main_~y~0#1 > 0); 4#L12-3true main_~x~0#1 := main_~x~0#1 - 1; 9#L11-2true [2024-10-31 22:02:27,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:27,278 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-31 22:02:27,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:27,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047725005] [2024-10-31 22:02:27,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:27,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:27,403 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:27,466 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:02:27,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:27,474 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2024-10-31 22:02:27,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:27,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922702657] [2024-10-31 22:02:27,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:27,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:27,496 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:27,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:27,509 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:02:27,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:27,511 INFO L85 PathProgramCache]: Analyzing trace with hash 28699886, now seen corresponding path program 1 times [2024-10-31 22:02:27,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:27,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289483598] [2024-10-31 22:02:27,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:27,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:27,562 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:27,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:27,574 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:02:27,681 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:02:27,682 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:02:27,682 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:02:27,682 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:02:27,682 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:02:27,683 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:27,683 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:02:27,683 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:02:27,683 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.16.c_Iteration1_Loop [2024-10-31 22:02:27,683 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:02:27,683 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:02:27,707 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:27,723 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:27,730 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:27,739 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:27,848 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:02:27,848 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:02:27,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:27,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:27,854 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:27,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-31 22:02:27,858 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:02:27,858 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:02:27,886 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:02:27,887 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:02:27,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-31 22:02:27,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:27,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:27,902 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:27,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-31 22:02:27,904 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:02:27,904 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:02:27,930 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:02:27,931 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:02:27,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:27,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:27,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:27,950 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:27,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 22:02:27,954 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:02:27,954 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:02:27,979 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:02:27,979 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=0} Honda state: {ULTIMATE.start_main_~y~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:02:27,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:27,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:27,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:27,993 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:27,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 22:02:27,996 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:02:27,996 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:02:28,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:28,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:28,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:28,033 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:28,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 22:02:28,037 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:02:28,038 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:02:28,085 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:02:28,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-31 22:02:28,089 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:02:28,089 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:02:28,089 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:02:28,089 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:02:28,089 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:02:28,089 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:28,090 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:02:28,090 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:02:28,090 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.16.c_Iteration1_Loop [2024-10-31 22:02:28,090 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:02:28,090 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:02:28,092 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:28,097 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:28,102 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:28,107 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:28,190 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:02:28,198 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:02:28,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:28,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:28,206 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:28,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 22:02:28,211 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:02:28,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:28,226 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:28,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:28,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:28,232 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:02:28,232 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:02:28,238 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:28,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-31 22:02:28,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:28,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:28,260 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:28,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 22:02:28,264 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:02:28,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:28,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:28,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:28,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:28,285 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:02:28,285 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:02:28,301 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:28,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:28,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:28,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:28,316 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:28,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 22:02:28,319 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:02:28,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:28,332 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:02:28,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:28,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:28,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:28,333 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:02:28,333 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:02:28,336 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:28,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-31 22:02:28,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:28,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:28,350 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:28,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-31 22:02:28,352 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:02:28,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:28,363 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:02:28,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:28,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:28,363 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:28,365 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:02:28,365 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:02:28,370 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:02:28,375 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-31 22:02:28,375 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:02:28,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:28,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:28,391 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:28,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 22:02:28,393 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:02:28,393 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:02:28,394 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:02:28,394 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-10-31 22:02:28,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-10-31 22:02:28,416 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:02:28,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:28,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:28,459 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:02:28,460 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:02:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:28,476 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:02:28,477 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:02:28,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:28,553 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 22:02:28,555 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:28,612 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 31 transitions. Complement of second has 6 states. [2024-10-31 22:02:28,617 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 [2024-10-31 22:02:28,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:28,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2024-10-31 22:02:28,630 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 2 letters. Loop has 3 letters. [2024-10-31 22:02:28,631 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:02:28,631 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 3 letters. [2024-10-31 22:02:28,631 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:02:28,631 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 2 letters. Loop has 6 letters. [2024-10-31 22:02:28,631 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:02:28,632 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 31 transitions. [2024-10-31 22:02:28,635 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-10-31 22:02:28,644 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions. [2024-10-31 22:02:28,645 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2024-10-31 22:02:28,645 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2024-10-31 22:02:28,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2024-10-31 22:02:28,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:02:28,651 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-10-31 22:02:28,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2024-10-31 22:02:28,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2024-10-31 22:02:28,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:28,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2024-10-31 22:02:28,695 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2024-10-31 22:02:28,695 INFO L425 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2024-10-31 22:02:28,695 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 22:02:28,695 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2024-10-31 22:02:28,696 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-10-31 22:02:28,696 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:02:28,696 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:02:28,698 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-31 22:02:28,698 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-10-31 22:02:28,698 INFO L745 eck$LassoCheckResult]: Stem: 72#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 73#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; 74#L11-2 assume !!(main_~x~0#1 > 0); 68#L12-2 [2024-10-31 22:02:28,699 INFO L747 eck$LassoCheckResult]: Loop: 68#L12-2 assume !!(main_~y~0#1 > 0);main_~y~0#1 := main_~y~0#1 - 1; 68#L12-2 [2024-10-31 22:02:28,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:28,704 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-10-31 22:02:28,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:28,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225873479] [2024-10-31 22:02:28,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:28,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:28,718 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:28,728 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:02:28,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:28,729 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2024-10-31 22:02:28,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:28,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922975146] [2024-10-31 22:02:28,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:28,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:28,739 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:28,748 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:02:28,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:28,752 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2024-10-31 22:02:28,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:28,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123956300] [2024-10-31 22:02:28,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:28,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:28,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:28,764 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:28,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:28,771 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:02:28,802 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:02:28,802 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:02:28,802 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:02:28,803 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:02:28,803 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:02:28,804 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:28,804 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:02:28,804 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:02:28,804 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.16.c_Iteration2_Loop [2024-10-31 22:02:28,804 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:02:28,804 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:02:28,809 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:28,815 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:28,821 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:28,906 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:02:28,907 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:02:28,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:28,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:28,911 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:28,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-31 22:02:28,919 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:02:28,919 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:02:28,959 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:02:28,960 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:02:28,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:28,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:28,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:28,982 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:28,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-31 22:02:28,985 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:02:28,985 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:02:29,012 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:02:29,012 INFO L401 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: [] [2024-10-31 22:02:29,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-31 22:02:29,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:29,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:29,034 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:29,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-31 22:02:29,038 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:02:29,038 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:02:29,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-10-31 22:02:29,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:29,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:29,075 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:29,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-31 22:02:29,079 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:02:29,079 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:02:29,122 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:02:29,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-31 22:02:29,132 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:02:29,132 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:02:29,132 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:02:29,132 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:02:29,132 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:02:29,132 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:29,133 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:02:29,133 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:02:29,133 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.16.c_Iteration2_Loop [2024-10-31 22:02:29,133 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:02:29,133 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:02:29,136 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:29,145 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:29,150 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:29,208 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:02:29,208 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:02:29,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:29,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:29,211 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:29,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-31 22:02:29,213 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:02:29,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:29,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:29,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:29,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:29,231 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:02:29,232 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:02:29,240 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:29,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-10-31 22:02:29,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:29,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:29,264 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:29,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-31 22:02:29,269 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:02:29,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:29,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:29,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:29,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:29,286 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:02:29,286 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:02:29,292 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:29,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-10-31 22:02:29,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:29,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:29,316 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:29,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-31 22:02:29,347 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:02:29,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:29,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:29,366 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:02:29,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:29,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:29,366 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:29,367 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:02:29,367 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:02:29,371 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:02:29,374 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-31 22:02:29,374 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:02:29,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:29,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:29,378 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:29,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-31 22:02:29,381 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:02:29,381 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:02:29,381 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:02:29,381 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-10-31 22:02:29,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:29,403 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:02:29,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:29,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:29,436 INFO L255 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:02:29,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:02:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:29,451 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:02:29,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:02:29,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:29,453 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 [2024-10-31 22:02:29,453 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:29,469 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 19 transitions. Complement of second has 4 states. [2024-10-31 22:02:29,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:02:29,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:29,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-10-31 22:02:29,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 1 letters. [2024-10-31 22:02:29,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:02:29,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 1 letters. [2024-10-31 22:02:29,473 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:02:29,473 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2024-10-31 22:02:29,473 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:02:29,473 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2024-10-31 22:02:29,474 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:02:29,474 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2024-10-31 22:02:29,474 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-31 22:02:29,475 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-31 22:02:29,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-31 22:02:29,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:02:29,475 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:02:29,475 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:02:29,475 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:02:29,475 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 22:02:29,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-31 22:02:29,475 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:02:29,476 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-31 22:02:29,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 31.10 10:02:29 BoogieIcfgContainer [2024-10-31 22:02:29,483 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-31 22:02:29,483 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:02:29,484 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:02:29,484 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:02:29,484 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:02:27" (3/4) ... [2024-10-31 22:02:29,486 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 22:02:29,487 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:02:29,488 INFO L158 Benchmark]: Toolchain (without parser) took 2919.04ms. Allocated memory is still 148.9MB. Free memory was 111.0MB in the beginning and 113.6MB in the end (delta: -2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:02:29,488 INFO L158 Benchmark]: CDTParser took 0.68ms. Allocated memory is still 104.9MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:02:29,488 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.57ms. Allocated memory is still 148.9MB. Free memory was 110.6MB in the beginning and 99.7MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-31 22:02:29,489 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.59ms. Allocated memory is still 148.9MB. Free memory was 99.7MB in the beginning and 98.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:02:29,489 INFO L158 Benchmark]: Boogie Preprocessor took 32.45ms. Allocated memory is still 148.9MB. Free memory was 98.3MB in the beginning and 96.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:02:29,490 INFO L158 Benchmark]: RCFGBuilder took 242.67ms. Allocated memory is still 148.9MB. Free memory was 96.7MB in the beginning and 88.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-31 22:02:29,490 INFO L158 Benchmark]: BuchiAutomizer took 2313.28ms. Allocated memory is still 148.9MB. Free memory was 87.9MB in the beginning and 113.6MB in the end (delta: -25.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:02:29,490 INFO L158 Benchmark]: Witness Printer took 3.60ms. Allocated memory is still 148.9MB. Free memory is still 113.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:02:29,496 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68ms. Allocated memory is still 104.9MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 280.57ms. Allocated memory is still 148.9MB. Free memory was 110.6MB in the beginning and 99.7MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.59ms. Allocated memory is still 148.9MB. Free memory was 99.7MB in the beginning and 98.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.45ms. Allocated memory is still 148.9MB. Free memory was 98.3MB in the beginning and 96.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 242.67ms. Allocated memory is still 148.9MB. Free memory was 96.7MB in the beginning and 88.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2313.28ms. Allocated memory is still 148.9MB. Free memory was 87.9MB in the beginning and 113.6MB in the end (delta: -25.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.60ms. Allocated memory is still 148.9MB. Free memory is still 113.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 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 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 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, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 9 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 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: 35ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-31 22:02:29,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:29,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3dcf93d-bfa9-436c-b6a2-95b7d66579ad/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE