./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/LogAG.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5e519f3a 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_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/LogAG.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 68bdf78f6f996480ccfcf11b22cc3b7892db15596cae3edf06123d71c4506b1f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:40:25,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:40:25,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:40:26,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:40:26,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:40:26,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:40:26,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:40:26,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:40:26,045 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:40:26,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:40:26,048 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:40:26,049 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:40:26,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:40:26,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:40:26,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:40:26,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:40:26,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:40:26,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:40:26,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:40:26,061 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:40:26,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:40:26,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:40:26,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:40:26,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:40:26,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:40:26,073 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:40:26,073 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:40:26,074 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:40:26,075 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:40:26,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:40:26,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:40:26,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:40:26,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:40:26,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:40:26,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:40:26,082 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:40:26,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:40:26,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:40:26,084 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:40:26,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:40:26,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:40:26,088 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-02 20:40:26,150 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:40:26,151 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:40:26,152 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:40:26,152 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:40:26,154 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:40:26,154 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:40:26,154 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:40:26,155 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-02 20:40:26,155 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-02 20:40:26,155 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-02 20:40:26,157 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-02 20:40:26,157 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-02 20:40:26,157 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-02 20:40:26,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:40:26,158 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:40:26,158 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:40:26,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:40:26,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-02 20:40:26,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-02 20:40:26,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-02 20:40:26,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:40:26,160 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-02 20:40:26,160 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:40:26,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-02 20:40:26,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:40:26,168 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:40:26,169 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:40:26,169 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:40:26,171 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-02 20:40:26,171 INFO L138 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_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68bdf78f6f996480ccfcf11b22cc3b7892db15596cae3edf06123d71c4506b1f [2022-11-02 20:40:26,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:40:26,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:40:26,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:40:26,608 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:40:26,609 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:40:26,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/termination-restricted-15/LogAG.c [2022-11-02 20:40:26,712 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/data/0b47ff7cc/07f338581aed449d88ba9e824840ec6e/FLAG67046b478 [2022-11-02 20:40:27,355 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:40:27,356 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/sv-benchmarks/c/termination-restricted-15/LogAG.c [2022-11-02 20:40:27,367 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/data/0b47ff7cc/07f338581aed449d88ba9e824840ec6e/FLAG67046b478 [2022-11-02 20:40:27,719 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/data/0b47ff7cc/07f338581aed449d88ba9e824840ec6e [2022-11-02 20:40:27,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:40:27,732 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:40:27,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:40:27,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:40:27,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:40:27,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:40:27" (1/1) ... [2022-11-02 20:40:27,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4aad5541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:40:27, skipping insertion in model container [2022-11-02 20:40:27,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:40:27" (1/1) ... [2022-11-02 20:40:27,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:40:27,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:40:28,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:40:28,022 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:40:28,037 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:40:28,052 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:40:28,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:40:28 WrapperNode [2022-11-02 20:40:28,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:40:28,054 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:40:28,054 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:40:28,054 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:40:28,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:40:28" (1/1) ... [2022-11-02 20:40:28,068 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:40:28" (1/1) ... [2022-11-02 20:40:28,088 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2022-11-02 20:40:28,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:40:28,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:40:28,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:40:28,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:40:28,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:40:28" (1/1) ... [2022-11-02 20:40:28,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:40:28" (1/1) ... [2022-11-02 20:40:28,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:40:28" (1/1) ... [2022-11-02 20:40:28,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:40:28" (1/1) ... [2022-11-02 20:40:28,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:40:28" (1/1) ... [2022-11-02 20:40:28,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:40:28" (1/1) ... [2022-11-02 20:40:28,110 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:40:28" (1/1) ... [2022-11-02 20:40:28,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:40:28" (1/1) ... [2022-11-02 20:40:28,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:40:28,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:40:28,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:40:28,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:40:28,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:40:28" (1/1) ... [2022-11-02 20:40:28,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:28,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:28,157 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:40:28,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-02 20:40:28,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:40:28,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:40:28,305 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:40:28,309 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:40:28,435 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:40:28,448 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:40:28,449 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-02 20:40:28,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:40:28 BoogieIcfgContainer [2022-11-02 20:40:28,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:40:28,454 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-02 20:40:28,455 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-02 20:40:28,460 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-02 20:40:28,461 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:40:28,461 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 08:40:27" (1/3) ... [2022-11-02 20:40:28,463 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@231f2b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:40:28, skipping insertion in model container [2022-11-02 20:40:28,463 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:40:28,463 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:40:28" (2/3) ... [2022-11-02 20:40:28,464 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@231f2b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:40:28, skipping insertion in model container [2022-11-02 20:40:28,464 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:40:28,464 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:40:28" (3/3) ... [2022-11-02 20:40:28,466 INFO L332 chiAutomizerObserver]: Analyzing ICFG LogAG.c [2022-11-02 20:40:28,534 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-02 20:40:28,535 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-02 20:40:28,535 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-02 20:40:28,535 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-02 20:40:28,535 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-02 20:40:28,536 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-02 20:40:28,536 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-02 20:40:28,536 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-02 20:40:28,542 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) [2022-11-02 20:40:28,566 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 20:40:28,566 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:40:28,567 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:40:28,573 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:40:28,573 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:40:28,573 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-02 20:40:28,574 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) [2022-11-02 20:40:28,576 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 20:40:28,577 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:40:28,577 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:40:28,577 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:40:28,577 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:40:28,588 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~xtmp~0#1, main_~res~0#1, main_~restmp~0#1;havoc main_~x~0#1;havoc main_~xtmp~0#1;havoc main_~res~0#1;havoc main_~restmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~res~0#1 := 0; 6#L13-2true [2022-11-02 20:40:28,589 INFO L750 eck$LassoCheckResult]: Loop: 6#L13-2true assume !!(main_~x~0#1 > 1);main_~xtmp~0#1 := main_~x~0#1 - 2;main_~restmp~0#1 := 0; 3#L17-2true assume !(main_~xtmp~0#1 > 1); 9#L17-3true main_~x~0#1 := 1 + main_~xtmp~0#1;main_~res~0#1 := 1 + main_~res~0#1; 6#L13-2true [2022-11-02 20:40:28,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:40:28,599 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-02 20:40:28,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:40:28,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945167885] [2022-11-02 20:40:28,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:40:28,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:40:28,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:40:28,732 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:40:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:40:28,781 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:40:28,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:40:28,785 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2022-11-02 20:40:28,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:40:28,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643073902] [2022-11-02 20:40:28,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:40:28,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:40:28,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:40:28,826 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:40:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:40:28,848 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:40:28,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:40:28,850 INFO L85 PathProgramCache]: Analyzing trace with hash 28699886, now seen corresponding path program 1 times [2022-11-02 20:40:28,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:40:28,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196716513] [2022-11-02 20:40:28,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:40:28,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:40:28,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:40:28,875 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:40:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:40:28,882 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:40:29,046 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:40:29,047 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:40:29,047 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:40:29,047 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:40:29,047 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:40:29,048 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:29,048 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:40:29,048 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:40:29,048 INFO L133 ssoRankerPreferences]: Filename of dumped script: LogAG.c_Iteration1_Loop [2022-11-02 20:40:29,048 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:40:29,049 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:40:29,073 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:40:29,089 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:40:29,095 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:40:29,100 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:40:29,118 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:40:29,234 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:40:29,235 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:40:29,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:29,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:29,241 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:40:29,284 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:40:29,284 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:40:29,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-02 20:40:29,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:40:29,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:29,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:29,375 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:40:29,384 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:40:29,384 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:40:29,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-02 20:40:29,455 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:40:29,456 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~0#1=0} Honda state: {ULTIMATE.start_main_~res~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~res~0#1=-6}, {ULTIMATE.start_main_~res~0#1=7}, {ULTIMATE.start_main_~res~0#1=0}] Lambdas: [1, 1, 13] Nus: [0, 0] [2022-11-02 20:40:29,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:40:29,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:29,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:29,508 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:40:29,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-02 20:40:29,518 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:40:29,518 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:40:29,552 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:40:29,553 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:40:29,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:40:29,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:29,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:29,603 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:40:29,618 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:40:29,619 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:40:29,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-02 20:40:29,650 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:40:29,650 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:40:29,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:40:29,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:29,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:29,704 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:40:29,713 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:40:29,714 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:40:29,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-02 20:40:29,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:40:29,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:29,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:29,813 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:40:29,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-02 20:40:29,824 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:40:29,824 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:40:30,711 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:40:30,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-11-02 20:40:30,720 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:40:30,720 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:40:30,720 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:40:30,720 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:40:30,720 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:40:30,721 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:30,721 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:40:30,721 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:40:30,721 INFO L133 ssoRankerPreferences]: Filename of dumped script: LogAG.c_Iteration1_Loop [2022-11-02 20:40:30,721 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:40:30,721 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:40:30,725 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:40:30,741 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:40:30,750 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:40:30,780 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:40:30,812 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:40:30,943 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:40:30,948 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:40:30,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:30,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:30,952 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:40:30,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-02 20:40:30,974 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 [2022-11-02 20:40:30,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:40:30,988 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:40:30,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:40:30,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:40:30,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:40:30,991 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:40:30,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:40:31,002 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:40:31,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:40:31,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:31,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:31,026 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:40:31,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-02 20:40:31,029 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 [2022-11-02 20:40:31,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:40:31,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:40:31,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:40:31,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:40:31,049 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:40:31,049 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:40:31,075 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:40:31,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-02 20:40:31,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:31,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:31,124 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:40:31,129 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 [2022-11-02 20:40:31,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-02 20:40:31,143 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:40:31,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:40:31,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:40:31,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:40:31,148 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:40:31,148 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:40:31,162 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:40:31,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-02 20:40:31,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:31,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:31,195 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:40:31,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-02 20:40:31,198 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 [2022-11-02 20:40:31,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:40:31,211 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:40:31,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:40:31,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:40:31,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:40:31,219 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:40:31,219 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:40:31,240 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:40:31,247 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-02 20:40:31,248 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-02 20:40:31,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:31,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:31,253 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:40:31,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-02 20:40:31,288 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:40:31,288 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:40:31,288 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:40:31,289 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-11-02 20:40:31,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-02 20:40:31,321 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:40:31,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:40:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:40:31,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:40:31,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:40:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:40:31,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:40:31,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:40:31,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:40:31,516 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 [2022-11-02 20:40:31,519 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) [2022-11-02 20:40:31,604 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 24 states and 36 transitions. Complement of second has 7 states. [2022-11-02 20:40:31,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-02 20:40:31,613 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) [2022-11-02 20:40:31,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2022-11-02 20:40:31,616 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 3 letters. [2022-11-02 20:40:31,617 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:40:31,618 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 5 letters. Loop has 3 letters. [2022-11-02 20:40:31,618 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:40:31,619 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 6 letters. [2022-11-02 20:40:31,619 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:40:31,620 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 36 transitions. [2022-11-02 20:40:31,623 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-02 20:40:31,628 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2022-11-02 20:40:31,629 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2022-11-02 20:40:31,629 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-11-02 20:40:31,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2022-11-02 20:40:31,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:40:31,631 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-11-02 20:40:31,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2022-11-02 20:40:31,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2022-11-02 20:40:31,655 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) [2022-11-02 20:40:31,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2022-11-02 20:40:31,657 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2022-11-02 20:40:31,657 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2022-11-02 20:40:31,657 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-02 20:40:31,658 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2022-11-02 20:40:31,658 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-02 20:40:31,658 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:40:31,659 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:40:31,659 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-02 20:40:31,659 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-02 20:40:31,660 INFO L748 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 79#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~xtmp~0#1, main_~res~0#1, main_~restmp~0#1;havoc main_~x~0#1;havoc main_~xtmp~0#1;havoc main_~res~0#1;havoc main_~restmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~res~0#1 := 0; 80#L13-2 assume !!(main_~x~0#1 > 1);main_~xtmp~0#1 := main_~x~0#1 - 2;main_~restmp~0#1 := 0; 75#L17-2 [2022-11-02 20:40:31,660 INFO L750 eck$LassoCheckResult]: Loop: 75#L17-2 assume !!(main_~xtmp~0#1 > 1);main_~xtmp~0#1 := main_~xtmp~0#1 - 2;main_~restmp~0#1 := 1 + main_~restmp~0#1; 75#L17-2 [2022-11-02 20:40:31,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:40:31,661 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-11-02 20:40:31,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:40:31,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361914432] [2022-11-02 20:40:31,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:40:31,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:40:31,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:40:31,668 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:40:31,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:40:31,673 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:40:31,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:40:31,674 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2022-11-02 20:40:31,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:40:31,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011156307] [2022-11-02 20:40:31,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:40:31,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:40:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:40:31,680 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:40:31,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:40:31,684 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:40:31,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:40:31,685 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2022-11-02 20:40:31,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:40:31,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736026952] [2022-11-02 20:40:31,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:40:31,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:40:31,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:40:31,694 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:40:31,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:40:31,701 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:40:31,727 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:40:31,727 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:40:31,727 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:40:31,727 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:40:31,727 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:40:31,727 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:31,728 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:40:31,728 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:40:31,728 INFO L133 ssoRankerPreferences]: Filename of dumped script: LogAG.c_Iteration2_Loop [2022-11-02 20:40:31,728 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:40:31,728 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:40:31,730 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:40:31,734 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:40:31,739 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:40:31,743 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:40:31,800 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:40:31,800 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:40:31,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:31,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:31,802 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:40:31,853 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:40:31,854 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:40:31,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-02 20:40:31,882 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:40:31,882 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:40:31,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-02 20:40:31,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:31,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:31,945 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:40:31,992 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:40:31,992 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:40:32,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-02 20:40:32,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-02 20:40:32,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:32,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:32,060 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:40:32,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-02 20:40:32,062 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:40:32,062 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:40:32,098 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:40:32,099 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~restmp~0#1=0} Honda state: {ULTIMATE.start_main_~restmp~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~restmp~0#1=3}, {ULTIMATE.start_main_~restmp~0#1=3}, {ULTIMATE.start_main_~restmp~0#1=-5}] Lambdas: [1, 1, 1] Nus: [0, 0] [2022-11-02 20:40:32,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-02 20:40:32,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:32,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:32,129 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:40:32,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-02 20:40:32,144 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:40:32,144 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:40:32,179 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:40:32,179 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:40:32,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-02 20:40:32,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:32,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:32,231 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:40:32,246 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:40:32,246 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:40:32,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-02 20:40:32,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-02 20:40:32,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:32,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:32,301 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:40:32,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-02 20:40:32,304 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:40:32,304 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:40:32,351 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:40:32,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-02 20:40:32,355 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:40:32,355 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:40:32,355 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:40:32,355 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:40:32,355 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:40:32,355 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:32,355 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:40:32,355 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:40:32,356 INFO L133 ssoRankerPreferences]: Filename of dumped script: LogAG.c_Iteration2_Loop [2022-11-02 20:40:32,356 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:40:32,356 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:40:32,358 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:40:32,364 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:40:32,369 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:40:32,384 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:40:32,461 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:40:32,461 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:40:32,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:32,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:32,468 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:40:32,482 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 [2022-11-02 20:40:32,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-02 20:40:32,497 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:40:32,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:40:32,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:40:32,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:40:32,501 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:40:32,501 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:40:32,514 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:40:32,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-02 20:40:32,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:32,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:32,562 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:40:32,578 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 [2022-11-02 20:40:32,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-02 20:40:32,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:40:32,594 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:40:32,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:40:32,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:40:32,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:40:32,596 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:40:32,596 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:40:32,606 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:40:32,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-02 20:40:32,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:32,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:32,653 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:40:32,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-02 20:40:32,665 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 [2022-11-02 20:40:32,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:40:32,678 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:40:32,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:40:32,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:40:32,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:40:32,679 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:40:32,680 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:40:32,690 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:40:32,694 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 20:40:32,694 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-02 20:40:32,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:32,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:32,701 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:40:32,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-02 20:40:32,707 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:40:32,711 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:40:32,711 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:40:32,711 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1) = 1*ULTIMATE.start_main_~xtmp~0#1 Supporting invariants [] [2022-11-02 20:40:32,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-02 20:40:32,756 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:40:32,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:40:32,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:40:32,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:40:32,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:40:32,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:40:32,811 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:40:32,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:40:32,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:40:32,813 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 [2022-11-02 20:40:32,816 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) [2022-11-02 20:40:32,838 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 5 states. [2022-11-02 20:40:32,840 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 [2022-11-02 20:40:32,841 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) [2022-11-02 20:40:32,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-11-02 20:40:32,842 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 1 letters. [2022-11-02 20:40:32,843 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:40:32,843 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 1 letters. [2022-11-02 20:40:32,843 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:40:32,844 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2022-11-02 20:40:32,844 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:40:32,845 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2022-11-02 20:40:32,845 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-02 20:40:32,846 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 14 transitions. [2022-11-02 20:40:32,846 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2022-11-02 20:40:32,846 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2022-11-02 20:40:32,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2022-11-02 20:40:32,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:40:32,847 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2022-11-02 20:40:32,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2022-11-02 20:40:32,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2022-11-02 20:40:32,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:40:32,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2022-11-02 20:40:32,848 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2022-11-02 20:40:32,849 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2022-11-02 20:40:32,849 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-02 20:40:32,849 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2022-11-02 20:40:32,849 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-02 20:40:32,850 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:40:32,850 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:40:32,850 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2022-11-02 20:40:32,850 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-02 20:40:32,850 INFO L748 eck$LassoCheckResult]: Stem: 130#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 131#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~xtmp~0#1, main_~res~0#1, main_~restmp~0#1;havoc main_~x~0#1;havoc main_~xtmp~0#1;havoc main_~res~0#1;havoc main_~restmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~res~0#1 := 0; 132#L13-2 assume !!(main_~x~0#1 > 1);main_~xtmp~0#1 := main_~x~0#1 - 2;main_~restmp~0#1 := 0; 128#L17-2 assume !(main_~xtmp~0#1 > 1); 129#L17-3 main_~x~0#1 := 1 + main_~xtmp~0#1;main_~res~0#1 := 1 + main_~res~0#1; 133#L13-2 assume !!(main_~x~0#1 > 1);main_~xtmp~0#1 := main_~x~0#1 - 2;main_~restmp~0#1 := 0; 127#L17-2 [2022-11-02 20:40:32,851 INFO L750 eck$LassoCheckResult]: Loop: 127#L17-2 assume !!(main_~xtmp~0#1 > 1);main_~xtmp~0#1 := main_~xtmp~0#1 - 2;main_~restmp~0#1 := 1 + main_~restmp~0#1; 127#L17-2 [2022-11-02 20:40:32,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:40:32,851 INFO L85 PathProgramCache]: Analyzing trace with hash 889696477, now seen corresponding path program 2 times [2022-11-02 20:40:32,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:40:32,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588018707] [2022-11-02 20:40:32,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:40:32,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:40:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:40:32,862 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:40:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:40:32,877 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:40:32,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:40:32,878 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 2 times [2022-11-02 20:40:32,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:40:32,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411235465] [2022-11-02 20:40:32,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:40:32,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:40:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:40:32,884 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:40:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:40:32,888 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:40:32,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:40:32,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1810787031, now seen corresponding path program 1 times [2022-11-02 20:40:32,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:40:32,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843634114] [2022-11-02 20:40:32,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:40:32,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:40:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:40:32,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-02 20:40:33,070 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:40:33,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:40:33,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-02 20:40:33,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843634114] [2022-11-02 20:40:33,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843634114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:40:33,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:40:33,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:40:33,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132470876] [2022-11-02 20:40:33,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:40:33,111 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:40:33,111 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:40:33,112 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:40:33,112 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:40:33,112 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:40:33,112 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:33,112 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:40:33,112 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:40:33,113 INFO L133 ssoRankerPreferences]: Filename of dumped script: LogAG.c_Iteration3_Loop [2022-11-02 20:40:33,113 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:40:33,113 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:40:33,115 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:40:33,124 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:40:33,129 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:40:33,135 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:40:33,211 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:40:33,212 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:40:33,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:33,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:33,215 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:40:33,222 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:40:33,222 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:40:33,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-02 20:40:33,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-02 20:40:33,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:33,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:33,304 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:40:33,307 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:40:33,308 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:40:33,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-02 20:40:33,384 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:40:33,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-11-02 20:40:33,394 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:40:33,394 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:40:33,394 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:40:33,395 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:40:33,395 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:40:33,395 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:33,395 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:40:33,395 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:40:33,395 INFO L133 ssoRankerPreferences]: Filename of dumped script: LogAG.c_Iteration3_Loop [2022-11-02 20:40:33,395 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:40:33,395 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:40:33,397 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:40:33,408 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:40:33,414 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:40:33,418 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:40:33,488 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:40:33,488 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:40:33,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:33,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:33,492 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:40:33,497 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 [2022-11-02 20:40:33,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-02 20:40:33,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:40:33,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:40:33,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:40:33,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:40:33,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:40:33,515 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:40:33,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:40:33,525 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:40:33,528 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 20:40:33,528 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-02 20:40:33,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:40:33,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:33,532 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:40:33,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-02 20:40:33,536 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:40:33,539 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:40:33,539 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:40:33,539 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1) = 1*ULTIMATE.start_main_~xtmp~0#1 Supporting invariants [] [2022-11-02 20:40:33,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-11-02 20:40:33,571 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:40:33,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:40:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:40:33,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:40:33,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:40:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:40:33,616 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:40:33,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:40:33,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:40:33,618 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 [2022-11-02 20:40:33,618 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:40:33,633 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 16 transitions. Complement of second has 5 states. [2022-11-02 20:40:33,634 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 [2022-11-02 20:40:33,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:40:33,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-11-02 20:40:33,636 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 1 letters. [2022-11-02 20:40:33,636 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:40:33,636 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-02 20:40:33,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:40:33,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:40:33,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:40:33,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:40:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:40:33,704 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:40:33,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:40:33,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:40:33,708 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-02 20:40:33,709 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:40:33,736 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 16 transitions. Complement of second has 5 states. [2022-11-02 20:40:33,737 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 [2022-11-02 20:40:33,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:40:33,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-11-02 20:40:33,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 1 letters. [2022-11-02 20:40:33,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:40:33,739 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-02 20:40:33,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:40:33,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:40:33,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:40:33,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:40:33,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:40:33,786 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:40:33,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:40:33,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:40:33,788 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-02 20:40:33,789 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:40:33,817 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10 states and 12 transitions. Complement of second has 4 states. [2022-11-02 20:40:33,817 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 [2022-11-02 20:40:33,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:40:33,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2022-11-02 20:40:33,824 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 1 letters. [2022-11-02 20:40:33,824 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:40:33,824 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 1 letters. [2022-11-02 20:40:33,824 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:40:33,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 2 letters. [2022-11-02 20:40:33,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:40:33,826 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2022-11-02 20:40:33,829 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-02 20:40:33,829 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2022-11-02 20:40:33,830 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-02 20:40:33,830 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-02 20:40:33,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-02 20:40:33,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:40:33,830 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:40:33,831 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:40:33,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:40:33,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:40:33,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:40:33,840 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:40:33,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:40:33,844 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-11-02 20:40:33,844 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-11-02 20:40:33,844 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-02 20:40:33,845 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-11-02 20:40:33,845 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-02 20:40:33,845 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-02 20:40:33,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-02 20:40:33,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:40:33,846 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:40:33,846 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:40:33,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:40:33,848 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:40:33,848 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-02 20:40:33,848 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-02 20:40:33,849 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-02 20:40:33,849 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-02 20:40:33,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 08:40:33 BoogieIcfgContainer [2022-11-02 20:40:33,860 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-02 20:40:33,861 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:40:33,861 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:40:33,862 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:40:33,862 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:40:28" (3/4) ... [2022-11-02 20:40:33,868 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:40:33,868 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:40:33,870 INFO L158 Benchmark]: Toolchain (without parser) took 6136.80ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 57.1MB in the beginning and 67.6MB in the end (delta: -10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:40:33,874 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 100.7MB. Free memory was 73.1MB in the beginning and 73.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:40:33,881 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.16ms. Allocated memory is still 100.7MB. Free memory was 56.8MB in the beginning and 77.3MB in the end (delta: -20.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 20:40:33,883 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.44ms. Allocated memory is still 100.7MB. Free memory was 77.3MB in the beginning and 76.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:40:33,884 INFO L158 Benchmark]: Boogie Preprocessor took 23.06ms. Allocated memory is still 100.7MB. Free memory was 76.1MB in the beginning and 75.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:40:33,884 INFO L158 Benchmark]: RCFGBuilder took 338.77ms. Allocated memory is still 100.7MB. Free memory was 75.0MB in the beginning and 66.2MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:40:33,885 INFO L158 Benchmark]: BuchiAutomizer took 5406.16ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 66.2MB in the beginning and 68.4MB in the end (delta: -2.2MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2022-11-02 20:40:33,886 INFO L158 Benchmark]: Witness Printer took 7.22ms. Allocated memory is still 121.6MB. Free memory was 68.4MB in the beginning and 67.6MB in the end (delta: 875.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:40:33,888 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 100.7MB. Free memory was 73.1MB in the beginning and 73.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 317.16ms. Allocated memory is still 100.7MB. Free memory was 56.8MB in the beginning and 77.3MB in the end (delta: -20.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.44ms. Allocated memory is still 100.7MB. Free memory was 77.3MB in the beginning and 76.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.06ms. Allocated memory is still 100.7MB. Free memory was 76.1MB in the beginning and 75.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 338.77ms. Allocated memory is still 100.7MB. Free memory was 75.0MB in the beginning and 66.2MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 5406.16ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 66.2MB in the beginning and 68.4MB in the end (delta: -2.2MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * Witness Printer took 7.22ms. Allocated memory is still 121.6MB. Free memory was 68.4MB in the beginning and 67.6MB in the end (delta: 875.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function xtmp and consists of 3 locations. One nondeterministic module has affine ranking function xtmp and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.3s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 4.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35 IncrementalHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 24 mSDtfsCounter, 35 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax168 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq161 hnf93 smp100 dnf100 smp100 tf111 neg98 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 50ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.9s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-02 20:40:33,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2022-11-02 20:40:34,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51d20e8f-9248-476b-a6ea-df9ed2629574/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE