./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Sunset.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b4ec56b 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_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Sunset.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN --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 b6e6a27fda5fa9acea6a4d245576e05450de5374c21de963811f373e2c8febd9 --- 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-6b4ec56 [2022-11-20 10:47:45,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:47:45,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:47:45,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:47:45,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:47:45,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:47:45,964 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:47:45,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:47:45,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:47:45,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:47:45,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:47:45,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:47:45,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:47:45,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:47:45,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:47:45,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:47:45,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:47:45,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:47:45,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:47:45,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:47:45,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:47:45,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:47:45,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:47:45,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:47:45,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:47:45,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:47:45,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:47:45,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:47:45,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:47:45,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:47:45,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:47:45,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:47:45,998 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:47:45,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:47:46,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:47:46,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:47:46,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:47:46,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:47:46,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:47:46,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:47:46,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:47:46,008 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-20 10:47:46,047 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:47:46,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:47:46,052 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:47:46,053 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:47:46,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:47:46,054 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:47:46,055 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:47:46,055 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 10:47:46,055 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 10:47:46,055 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 10:47:46,057 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 10:47:46,057 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 10:47:46,057 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 10:47:46,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:47:46,058 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:47:46,058 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:47:46,058 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:47:46,058 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 10:47:46,058 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 10:47:46,059 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 10:47:46,059 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:47:46,059 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 10:47:46,059 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:47:46,060 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 10:47:46,060 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:47:46,060 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:47:46,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:47:46,061 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:47:46,063 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 10:47:46,063 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_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6e6a27fda5fa9acea6a4d245576e05450de5374c21de963811f373e2c8febd9 [2022-11-20 10:47:46,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:47:46,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:47:46,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:47:46,383 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:47:46,383 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:47:46,385 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/termination-restricted-15/Sunset.c [2022-11-20 10:47:49,479 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:47:49,679 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:47:49,679 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/sv-benchmarks/c/termination-restricted-15/Sunset.c [2022-11-20 10:47:49,685 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/data/c8ef4f5e5/75b86d981b654ac48f7b99b53ec8c1f7/FLAG44be8463b [2022-11-20 10:47:49,699 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/data/c8ef4f5e5/75b86d981b654ac48f7b99b53ec8c1f7 [2022-11-20 10:47:49,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:47:49,704 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:47:49,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:47:49,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:47:49,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:47:49,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:47:49" (1/1) ... [2022-11-20 10:47:49,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@385bd626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:49, skipping insertion in model container [2022-11-20 10:47:49,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:47:49" (1/1) ... [2022-11-20 10:47:49,720 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:47:49,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:47:49,857 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:47:49,862 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:47:49,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:47:49,883 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:47:49,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:49 WrapperNode [2022-11-20 10:47:49,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:47:49,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:47:49,885 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:47:49,885 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:47:49,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:49" (1/1) ... [2022-11-20 10:47:49,898 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:49" (1/1) ... [2022-11-20 10:47:49,919 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2022-11-20 10:47:49,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:47:49,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:47:49,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:47:49,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:47:49,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:49" (1/1) ... [2022-11-20 10:47:49,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:49" (1/1) ... [2022-11-20 10:47:49,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:49" (1/1) ... [2022-11-20 10:47:49,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:49" (1/1) ... [2022-11-20 10:47:49,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:49" (1/1) ... [2022-11-20 10:47:49,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:49" (1/1) ... [2022-11-20 10:47:49,934 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:49" (1/1) ... [2022-11-20 10:47:49,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:49" (1/1) ... [2022-11-20 10:47:49,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:47:49,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:47:49,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:47:49,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:47:49,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:49" (1/1) ... [2022-11-20 10:47:49,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:49,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:49,964 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:49,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 10:47:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:47:50,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:47:50,093 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:47:50,095 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:47:50,144 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:47:50,151 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:47:50,151 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 10:47:50,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:47:50 BoogieIcfgContainer [2022-11-20 10:47:50,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:47:50,154 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 10:47:50,154 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 10:47:50,158 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 10:47:50,159 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 10:47:50,159 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 10:47:49" (1/3) ... [2022-11-20 10:47:50,160 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6fadb8d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:47:50, skipping insertion in model container [2022-11-20 10:47:50,161 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 10:47:50,161 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:49" (2/3) ... [2022-11-20 10:47:50,161 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6fadb8d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:47:50, skipping insertion in model container [2022-11-20 10:47:50,161 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 10:47:50,161 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:47:50" (3/3) ... [2022-11-20 10:47:50,163 INFO L332 chiAutomizerObserver]: Analyzing ICFG Sunset.c [2022-11-20 10:47:50,221 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 10:47:50,221 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 10:47:50,221 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 10:47:50,221 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 10:47:50,222 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 10:47:50,222 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 10:47:50,222 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 10:47:50,222 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 10:47:50,227 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) [2022-11-20 10:47:50,245 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-20 10:47:50,246 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:47:50,246 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:47:50,251 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 10:47:50,252 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 10:47:50,252 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 10:47:50,252 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) [2022-11-20 10:47:50,253 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-20 10:47:50,254 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:47:50,254 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:47:50,254 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 10:47:50,254 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 10:47:50,262 INFO L748 eck$LassoCheckResult]: Stem: 5#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_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 3#L13-1true [2022-11-20 10:47:50,262 INFO L750 eck$LassoCheckResult]: Loop: 3#L13-1true assume !!(main_~i~0#1 > 10); 6#L10true assume !(25 == main_~i~0#1); 4#L10-2true assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 3#L13-1true [2022-11-20 10:47:50,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:50,269 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-20 10:47:50,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:47:50,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628276437] [2022-11-20 10:47:50,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:50,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:47:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:47:50,373 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:47:50,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:47:50,406 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:47:50,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:50,412 INFO L85 PathProgramCache]: Analyzing trace with hash 40878, now seen corresponding path program 1 times [2022-11-20 10:47:50,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:47:50,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731348344] [2022-11-20 10:47:50,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:50,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:47:50,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:47:50,435 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:47:50,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:47:50,447 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:47:50,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:50,450 INFO L85 PathProgramCache]: Analyzing trace with hash 28699820, now seen corresponding path program 1 times [2022-11-20 10:47:50,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:47:50,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349602348] [2022-11-20 10:47:50,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:50,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:47:50,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:47:50,474 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:47:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:47:50,487 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:47:50,621 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:47:50,622 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:47:50,622 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:47:50,622 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:47:50,622 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 10:47:50,623 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:50,623 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:47:50,623 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:47:50,623 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration1_Loop [2022-11-20 10:47:50,623 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:47:50,624 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:47:50,667 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:47:50,688 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:47:50,700 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:47:50,829 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:47:50,830 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 10:47:50,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:50,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:50,838 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:50,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-20 10:47:50,855 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:47:50,856 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:47:50,887 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:47:50,887 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: [] [2022-11-20 10:47:50,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:47:50,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:50,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:50,892 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:50,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-20 10:47:50,899 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:47:50,899 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:47:50,919 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:47:50,919 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: [] [2022-11-20 10:47:50,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:47:50,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:50,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:50,933 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:50,939 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:47:50,940 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:47:50,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-20 10:47:50,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:47:50,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:50,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:50,971 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:50,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-20 10:47:50,978 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 10:47:50,979 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:47:51,010 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 10:47:51,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:47:51,027 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:47:51,027 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:47:51,027 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:47:51,027 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:47:51,028 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 10:47:51,028 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:51,028 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:47:51,028 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:47:51,028 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration1_Loop [2022-11-20 10:47:51,028 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:47:51,029 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:47:51,031 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:47:51,040 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:47:51,053 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:47:51,174 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:47:51,179 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 10:47:51,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:51,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:51,182 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:51,186 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 [2022-11-20 10:47:51,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:47:51,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:47:51,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:47:51,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:47:51,204 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 10:47:51,205 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 10:47:51,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-20 10:47:51,218 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:47:51,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:47:51,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:51,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:51,229 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:51,238 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 [2022-11-20 10:47:51,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-20 10:47:51,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:47:51,252 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:47:51,252 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:47:51,252 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:47:51,255 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 10:47:51,256 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 10:47:51,278 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:47:51,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:47:51,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:51,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:51,310 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:51,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-20 10:47:51,314 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 [2022-11-20 10:47:51,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:47:51,327 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:47:51,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:47:51,327 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-20 10:47:51,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:47:51,330 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-20 10:47:51,331 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:47:51,342 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 10:47:51,345 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-20 10:47:51,346 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-20 10:47:51,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:51,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:51,365 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:51,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-20 10:47:51,369 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 10:47:51,370 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 10:47:51,370 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 10:47:51,370 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-11-20 10:47:51,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-11-20 10:47:51,378 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 10:47:51,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:51,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:51,436 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:47:51,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:47:51,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:51,465 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:47:51,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:47:51,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:47:51,553 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 10:47:51,555 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:47:51,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-20 10:47:51,649 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 27 states and 36 transitions. Complement of second has 8 states. [2022-11-20 10:47:51,651 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 [2022-11-20 10:47:51,656 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) [2022-11-20 10:47:51,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2022-11-20 10:47:51,658 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 2 letters. Loop has 3 letters. [2022-11-20 10:47:51,659 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:47:51,659 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 5 letters. Loop has 3 letters. [2022-11-20 10:47:51,659 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:47:51,659 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 2 letters. Loop has 6 letters. [2022-11-20 10:47:51,660 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:47:51,661 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 36 transitions. [2022-11-20 10:47:51,675 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-20 10:47:51,678 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 10 states and 15 transitions. [2022-11-20 10:47:51,680 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-11-20 10:47:51,680 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-20 10:47:51,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 15 transitions. [2022-11-20 10:47:51,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 10:47:51,681 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 15 transitions. [2022-11-20 10:47:51,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 15 transitions. [2022-11-20 10:47:51,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-20 10:47:51,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.5) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:47:51,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 15 transitions. [2022-11-20 10:47:51,706 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 15 transitions. [2022-11-20 10:47:51,706 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2022-11-20 10:47:51,706 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 10:47:51,706 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 15 transitions. [2022-11-20 10:47:51,707 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-20 10:47:51,707 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:47:51,707 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:47:51,708 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-20 10:47:51,708 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 10:47:51,708 INFO L748 eck$LassoCheckResult]: Stem: 85#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 86#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 82#L13-1 assume !!(main_~i~0#1 > 10); 84#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 78#L10-2 [2022-11-20 10:47:51,708 INFO L750 eck$LassoCheckResult]: Loop: 78#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 79#L13-1 assume !!(main_~i~0#1 > 10); 87#L10 assume !(25 == main_~i~0#1); 78#L10-2 [2022-11-20 10:47:51,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:51,709 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2022-11-20 10:47:51,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:47:51,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329710406] [2022-11-20 10:47:51,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:51,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:47:51,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:47:51,715 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:47:51,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:47:51,719 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:47:51,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:51,719 INFO L85 PathProgramCache]: Analyzing trace with hash 49368, now seen corresponding path program 2 times [2022-11-20 10:47:51,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:47:51,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559684393] [2022-11-20 10:47:51,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:51,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:47:51,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:47:51,725 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:47:51,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:47:51,729 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:47:51,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:51,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1810664019, now seen corresponding path program 1 times [2022-11-20 10:47:51,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:47:51,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847270750] [2022-11-20 10:47:51,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:51,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:47:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:47:51,739 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:47:51,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:47:51,744 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:47:51,774 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:47:51,775 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:47:51,775 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:47:51,775 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:47:51,775 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 10:47:51,775 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:51,775 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:47:51,775 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:47:51,776 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration2_Loop [2022-11-20 10:47:51,776 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:47:51,776 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:47:51,777 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:47:51,788 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:47:51,791 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:47:51,885 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:47:51,886 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 10:47:51,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:51,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:51,887 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:51,896 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:47:51,896 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:47:51,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-20 10:47:51,919 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:47:51,920 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: [] [2022-11-20 10:47:51,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-20 10:47:51,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:51,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:51,928 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:51,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-20 10:47:51,934 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:47:51,934 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:47:51,954 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:47:51,954 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: [] [2022-11-20 10:47:51,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-20 10:47:51,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:51,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:51,959 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:51,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-20 10:47:51,962 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:47:51,962 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:47:51,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-11-20 10:47:51,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:51,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:51,978 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:51,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-20 10:47:51,981 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 10:47:51,981 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:47:52,168 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 10:47:52,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-20 10:47:52,172 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:47:52,172 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:47:52,172 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:47:52,172 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:47:52,172 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 10:47:52,172 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:52,172 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:47:52,173 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:47:52,173 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration2_Loop [2022-11-20 10:47:52,173 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:47:52,173 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:47:52,175 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:47:52,181 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:47:52,199 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:47:52,307 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:47:52,307 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 10:47:52,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:52,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:52,311 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:52,316 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 [2022-11-20 10:47:52,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:47:52,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:47:52,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:47:52,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:47:52,337 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 10:47:52,337 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 10:47:52,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-20 10:47:52,356 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:47:52,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-20 10:47:52,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:52,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:52,363 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:52,375 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 [2022-11-20 10:47:52,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-20 10:47:52,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:47:52,386 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:47:52,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:47:52,386 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-20 10:47:52,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:47:52,388 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-20 10:47:52,389 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:47:52,400 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 10:47:52,405 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 10:47:52,405 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 10:47:52,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:52,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:52,423 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:52,445 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 10:47:52,445 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 10:47:52,445 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 10:47:52,445 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-11-20 10:47:52,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-20 10:47:52,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-20 10:47:52,459 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 10:47:52,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:52,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:52,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:47:52,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:47:52,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:52,502 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:47:52,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:47:52,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:47:52,572 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-20 10:47:52,572 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 15 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2022-11-20 10:47:52,612 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 15 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 22 states and 33 transitions. Complement of second has 7 states. [2022-11-20 10:47:52,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-20 10:47:52,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2022-11-20 10:47:52,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2022-11-20 10:47:52,620 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 3 letters. [2022-11-20 10:47:52,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:47:52,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-20 10:47:52,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:47:52,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 6 letters. [2022-11-20 10:47:52,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:47:52,628 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 33 transitions. [2022-11-20 10:47:52,632 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-20 10:47:52,634 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 18 states and 28 transitions. [2022-11-20 10:47:52,634 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-11-20 10:47:52,635 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-11-20 10:47:52,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 28 transitions. [2022-11-20 10:47:52,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 10:47:52,635 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 28 transitions. [2022-11-20 10:47:52,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 28 transitions. [2022-11-20 10:47:52,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2022-11-20 10:47:52,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 16 states have internal predecessors, (26), 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) [2022-11-20 10:47:52,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2022-11-20 10:47:52,641 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 26 transitions. [2022-11-20 10:47:52,641 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2022-11-20 10:47:52,642 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-20 10:47:52,642 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 26 transitions. [2022-11-20 10:47:52,644 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-20 10:47:52,644 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:47:52,645 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:47:52,645 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1] [2022-11-20 10:47:52,645 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 10:47:52,646 INFO L748 eck$LassoCheckResult]: Stem: 162#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 163#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 167#L13-1 assume !!(main_~i~0#1 > 10); 168#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 155#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 156#L13-1 assume !!(main_~i~0#1 > 10); 161#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 165#L10-2 [2022-11-20 10:47:52,646 INFO L750 eck$LassoCheckResult]: Loop: 165#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 159#L13-1 assume !!(main_~i~0#1 > 10); 160#L10 assume !(25 == main_~i~0#1); 165#L10-2 [2022-11-20 10:47:52,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:52,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1810664017, now seen corresponding path program 1 times [2022-11-20 10:47:52,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:47:52,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007033704] [2022-11-20 10:47:52,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:52,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:47:52,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:52,745 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:47:52,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:47:52,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007033704] [2022-11-20 10:47:52,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007033704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:47:52,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:47:52,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:47:52,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59348444] [2022-11-20 10:47:52,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:47:52,749 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-20 10:47:52,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:52,749 INFO L85 PathProgramCache]: Analyzing trace with hash 49368, now seen corresponding path program 3 times [2022-11-20 10:47:52,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:47:52,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361488252] [2022-11-20 10:47:52,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:52,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:47:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:47:52,754 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:47:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:47:52,757 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:47:52,781 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:47:52,781 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:47:52,781 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:47:52,781 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:47:52,781 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 10:47:52,781 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:52,781 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:47:52,781 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:47:52,781 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration3_Loop [2022-11-20 10:47:52,782 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:47:52,782 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:47:52,783 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:47:52,786 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:47:52,789 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:47:52,872 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:47:52,872 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 10:47:52,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:52,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:52,873 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:52,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-20 10:47:52,881 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:47:52,881 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:47:52,907 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:47:52,907 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 10:47:52,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-20 10:47:52,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:52,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:52,914 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:52,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-20 10:47:52,921 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:47:52,921 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:47:52,942 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:47:52,942 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 10:47:52,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2022-11-20 10:47:52,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:52,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:52,948 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:52,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-20 10:47:52,953 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:47:52,953 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:47:52,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-20 10:47:52,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:52,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:52,987 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:53,005 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 10:47:53,005 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:47:53,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-20 10:47:53,213 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 10:47:53,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-20 10:47:53,217 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:47:53,217 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:47:53,217 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:47:53,217 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:47:53,217 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 10:47:53,217 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:53,218 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:47:53,218 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:47:53,218 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration3_Loop [2022-11-20 10:47:53,218 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:47:53,218 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:47:53,219 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:47:53,233 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:47:53,237 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:47:53,317 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:47:53,317 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 10:47:53,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:53,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:53,320 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:53,332 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 [2022-11-20 10:47:53,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:47:53,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:47:53,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:47:53,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:47:53,348 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 10:47:53,348 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 10:47:53,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-20 10:47:53,359 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:47:53,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-20 10:47:53,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:53,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:53,375 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:53,383 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 [2022-11-20 10:47:53,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:47:53,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:47:53,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:47:53,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:47:53,400 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 10:47:53,400 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 10:47:53,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-20 10:47:53,426 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 10:47:53,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-20 10:47:53,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:53,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:53,436 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:53,439 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 [2022-11-20 10:47:53,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:47:53,452 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:47:53,452 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:47:53,452 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-20 10:47:53,452 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:47:53,454 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-20 10:47:53,454 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:47:53,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-20 10:47:53,482 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 10:47:53,487 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 10:47:53,487 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 10:47:53,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:53,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:53,491 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:53,492 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 10:47:53,492 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 10:47:53,492 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 10:47:53,493 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-11-20 10:47:53,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-20 10:47:53,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-20 10:47:53,502 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 10:47:53,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:53,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:53,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:47:53,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:47:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:53,544 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:47:53,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:47:53,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:47:53,579 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-20 10:47:53,579 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2022-11-20 10:47:53,609 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 35 transitions. Complement of second has 7 states. [2022-11-20 10:47:53,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-20 10:47:53,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2022-11-20 10:47:53,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2022-11-20 10:47:53,611 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-20 10:47:53,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:47:53,612 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 10:47:53,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:53,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:53,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:47:53,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:47:53,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:53,646 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:47:53,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:47:53,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:47:53,671 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-20 10:47:53,671 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2022-11-20 10:47:53,698 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 33 transitions. Complement of second has 7 states. [2022-11-20 10:47:53,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-20 10:47:53,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2022-11-20 10:47:53,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2022-11-20 10:47:53,699 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-20 10:47:53,700 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:47:53,700 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 10:47:53,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:53,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:47:53,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:47:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:53,729 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:47:53,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:47:53,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:47:53,753 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 3 loop predicates [2022-11-20 10:47:53,753 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2022-11-20 10:47:53,776 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 50 transitions. Complement of second has 7 states. [2022-11-20 10:47:53,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-20 10:47:53,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2022-11-20 10:47:53,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-20 10:47:53,777 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-20 10:47:53,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:47:53,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-20 10:47:53,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:47:53,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 7 letters. Loop has 6 letters. [2022-11-20 10:47:53,779 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:47:53,779 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 50 transitions. [2022-11-20 10:47:53,781 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-11-20 10:47:53,783 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 24 states and 37 transitions. [2022-11-20 10:47:53,783 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-11-20 10:47:53,783 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-11-20 10:47:53,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 37 transitions. [2022-11-20 10:47:53,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 10:47:53,784 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 37 transitions. [2022-11-20 10:47:53,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 37 transitions. [2022-11-20 10:47:53,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 16. [2022-11-20 10:47:53,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.5625) internal successors, (25), 15 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:47:53,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 25 transitions. [2022-11-20 10:47:53,786 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 25 transitions. [2022-11-20 10:47:53,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:47:53,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:47:53,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:47:53,789 INFO L87 Difference]: Start difference. First operand 16 states and 25 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2022-11-20 10:47:53,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:47:53,813 INFO L93 Difference]: Finished difference Result 19 states and 29 transitions. [2022-11-20 10:47:53,813 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 29 transitions. [2022-11-20 10:47:53,813 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2022-11-20 10:47:53,814 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 29 transitions. [2022-11-20 10:47:53,814 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-11-20 10:47:53,814 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-11-20 10:47:53,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 29 transitions. [2022-11-20 10:47:53,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 10:47:53,815 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 29 transitions. [2022-11-20 10:47:53,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 29 transitions. [2022-11-20 10:47:53,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2022-11-20 10:47:53,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 16 states have internal predecessors, (26), 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) [2022-11-20 10:47:53,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2022-11-20 10:47:53,817 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 26 transitions. [2022-11-20 10:47:53,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:47:53,818 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2022-11-20 10:47:53,818 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-20 10:47:53,819 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 26 transitions. [2022-11-20 10:47:53,819 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2022-11-20 10:47:53,819 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:47:53,819 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:47:53,820 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-20 10:47:53,820 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 10:47:53,820 INFO L748 eck$LassoCheckResult]: Stem: 426#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 427#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 430#L13-1 assume !!(main_~i~0#1 > 10); 428#L10 [2022-11-20 10:47:53,820 INFO L750 eck$LassoCheckResult]: Loop: 428#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 419#L10-2 assume !(main_~i~0#1 <= 30);main_~i~0#1 := 20; 421#L13-1 assume !!(main_~i~0#1 > 10); 428#L10 [2022-11-20 10:47:53,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:53,821 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-11-20 10:47:53,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:47:53,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826293829] [2022-11-20 10:47:53,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:53,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:47:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:47:53,825 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:47:53,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:47:53,827 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:47:53,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:53,828 INFO L85 PathProgramCache]: Analyzing trace with hash 43938, now seen corresponding path program 1 times [2022-11-20 10:47:53,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:47:53,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619213301] [2022-11-20 10:47:53,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:53,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:47:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:53,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-20 10:47:53,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-20 10:47:53,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:47:53,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:47:53,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619213301] [2022-11-20 10:47:53,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619213301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:47:53,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:47:53,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:47:53,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508483543] [2022-11-20 10:47:53,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:47:53,869 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-20 10:47:53,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:47:53,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:47:53,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:47:53,870 INFO L87 Difference]: Start difference. First operand 17 states and 26 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:47:53,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:47:53,881 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2022-11-20 10:47:53,881 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2022-11-20 10:47:53,882 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-20 10:47:53,882 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 22 transitions. [2022-11-20 10:47:53,882 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-11-20 10:47:53,882 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-11-20 10:47:53,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 22 transitions. [2022-11-20 10:47:53,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 10:47:53,883 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 22 transitions. [2022-11-20 10:47:53,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 22 transitions. [2022-11-20 10:47:53,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2022-11-20 10:47:53,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 16 states have internal predecessors, (21), 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) [2022-11-20 10:47:53,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2022-11-20 10:47:53,885 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-11-20 10:47:53,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:47:53,886 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-11-20 10:47:53,886 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-20 10:47:53,886 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2022-11-20 10:47:53,887 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-20 10:47:53,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:47:53,887 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:47:53,887 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 1, 1, 1] [2022-11-20 10:47:53,888 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1] [2022-11-20 10:47:53,888 INFO L748 eck$LassoCheckResult]: Stem: 468#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 469#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 464#L13-1 assume !!(main_~i~0#1 > 10); 465#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 460#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 461#L13-1 assume !!(main_~i~0#1 > 10); 474#L10 assume !(25 == main_~i~0#1); 471#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 473#L13-1 assume !!(main_~i~0#1 > 10); 470#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 472#L10-2 [2022-11-20 10:47:53,888 INFO L750 eck$LassoCheckResult]: Loop: 472#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 475#L13-1 assume !!(main_~i~0#1 > 10); 474#L10 assume !(25 == main_~i~0#1); 471#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 473#L13-1 assume !!(main_~i~0#1 > 10); 470#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 472#L10-2 [2022-11-20 10:47:53,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:53,889 INFO L85 PathProgramCache]: Analyzing trace with hash 997539140, now seen corresponding path program 2 times [2022-11-20 10:47:53,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:47:53,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987645699] [2022-11-20 10:47:53,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:53,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:47:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:53,942 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:47:53,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:47:53,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987645699] [2022-11-20 10:47:53,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987645699] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:47:53,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587279839] [2022-11-20 10:47:53,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:47:53,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:47:53,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:53,947 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:47:53,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-20 10:47:53,988 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:47:53,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:47:53,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:47:53,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:47:54,002 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:47:54,003 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:47:54,031 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:47:54,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587279839] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:47:54,032 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:47:54,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-11-20 10:47:54,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679900782] [2022-11-20 10:47:54,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:47:54,033 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-20 10:47:54,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:54,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1470741663, now seen corresponding path program 1 times [2022-11-20 10:47:54,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:47:54,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17309784] [2022-11-20 10:47:54,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:54,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:47:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:47:54,039 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:47:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:47:54,043 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:47:54,071 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:47:54,071 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:47:54,071 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:47:54,071 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:47:54,071 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 10:47:54,071 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:54,071 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:47:54,072 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:47:54,072 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration5_Loop [2022-11-20 10:47:54,072 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:47:54,072 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:47:54,073 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:47:54,076 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:47:54,080 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:47:54,114 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:47:54,114 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 10:47:54,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:54,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:54,116 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:54,124 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:47:54,124 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:47:54,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-20 10:47:54,151 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 10:47:54,151 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 10:47:54,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-20 10:47:54,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:54,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:54,162 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:54,170 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 10:47:54,170 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:47:54,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-20 10:47:54,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-20 10:47:54,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:54,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:54,198 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:54,208 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 10:47:54,208 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 10:47:54,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-20 10:47:54,246 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 10:47:54,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-20 10:47:54,256 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 10:47:54,256 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 10:47:54,256 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 10:47:54,256 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 10:47:54,256 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 10:47:54,256 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:54,257 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 10:47:54,257 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 10:47:54,257 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration5_Loop [2022-11-20 10:47:54,257 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 10:47:54,257 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 10:47:54,258 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:47:54,264 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:47:54,269 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 10:47:54,303 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 10:47:54,303 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 10:47:54,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:54,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:54,305 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:54,315 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 [2022-11-20 10:47:54,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 10:47:54,328 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 10:47:54,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 10:47:54,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 10:47:54,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 10:47:54,330 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 10:47:54,330 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 10:47:54,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-20 10:47:54,342 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 10:47:54,345 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 10:47:54,345 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-20 10:47:54,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:47:54,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:54,347 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:54,350 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 10:47:54,350 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 10:47:54,350 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 10:47:54,350 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 57 Supporting invariants [] [2022-11-20 10:47:54,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-20 10:47:54,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-20 10:47:54,359 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 10:47:54,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:54,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:54,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:47:54,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:47:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:54,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:47:54,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:47:54,449 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:47:54,450 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-20 10:47:54,450 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2022-11-20 10:47:54,485 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 37 transitions. Complement of second has 7 states. [2022-11-20 10:47:54,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-20 10:47:54,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2022-11-20 10:47:54,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-11-20 10:47:54,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 6 letters. [2022-11-20 10:47:54,494 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:47:54,494 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 16 letters. Loop has 6 letters. [2022-11-20 10:47:54,495 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:47:54,495 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 12 letters. [2022-11-20 10:47:54,495 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 10:47:54,495 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 37 transitions. [2022-11-20 10:47:54,498 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-20 10:47:54,498 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 30 states and 36 transitions. [2022-11-20 10:47:54,498 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-20 10:47:54,499 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-20 10:47:54,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 36 transitions. [2022-11-20 10:47:54,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 10:47:54,499 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 36 transitions. [2022-11-20 10:47:54,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 36 transitions. [2022-11-20 10:47:54,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2022-11-20 10:47:54,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:47:54,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2022-11-20 10:47:54,504 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 32 transitions. [2022-11-20 10:47:54,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:47:54,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:47:54,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:47:54,505 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 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) [2022-11-20 10:47:54,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:47:54,534 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2022-11-20 10:47:54,534 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 40 transitions. [2022-11-20 10:47:54,539 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-11-20 10:47:54,540 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 31 states and 35 transitions. [2022-11-20 10:47:54,541 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-20 10:47:54,541 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-20 10:47:54,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 35 transitions. [2022-11-20 10:47:54,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 10:47:54,542 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 35 transitions. [2022-11-20 10:47:54,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 35 transitions. [2022-11-20 10:47:54,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2022-11-20 10:47:54,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 25 states have internal predecessors, (30), 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) [2022-11-20 10:47:54,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2022-11-20 10:47:54,549 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 30 transitions. [2022-11-20 10:47:54,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:47:54,550 INFO L428 stractBuchiCegarLoop]: Abstraction has 26 states and 30 transitions. [2022-11-20 10:47:54,550 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-20 10:47:54,551 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 30 transitions. [2022-11-20 10:47:54,552 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2022-11-20 10:47:54,552 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:47:54,553 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:47:54,555 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 5, 4, 2, 1, 1] [2022-11-20 10:47:54,555 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [5, 5, 4, 1] [2022-11-20 10:47:54,555 INFO L748 eck$LassoCheckResult]: Stem: 705#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 706#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 708#L13-1 assume !!(main_~i~0#1 > 10); 707#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 702#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 701#L13-1 assume !!(main_~i~0#1 > 10); 700#L10 assume !(25 == main_~i~0#1); 703#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 704#L13-1 assume !!(main_~i~0#1 > 10); 724#L10 assume !(25 == main_~i~0#1); 723#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 722#L13-1 assume !!(main_~i~0#1 > 10); 721#L10 assume !(25 == main_~i~0#1); 720#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 719#L13-1 assume !!(main_~i~0#1 > 10); 718#L10 assume !(25 == main_~i~0#1); 714#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 715#L13-1 assume !!(main_~i~0#1 > 10); 713#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 712#L10-2 [2022-11-20 10:47:54,556 INFO L750 eck$LassoCheckResult]: Loop: 712#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 699#L13-1 assume !!(main_~i~0#1 > 10); 700#L10 assume !(25 == main_~i~0#1); 703#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 704#L13-1 assume !!(main_~i~0#1 > 10); 724#L10 assume !(25 == main_~i~0#1); 723#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 722#L13-1 assume !!(main_~i~0#1 > 10); 721#L10 assume !(25 == main_~i~0#1); 720#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 719#L13-1 assume !!(main_~i~0#1 > 10); 718#L10 assume !(25 == main_~i~0#1); 714#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 715#L13-1 assume !!(main_~i~0#1 > 10); 713#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 712#L10-2 [2022-11-20 10:47:54,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:54,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1587470191, now seen corresponding path program 3 times [2022-11-20 10:47:54,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:47:54,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915449351] [2022-11-20 10:47:54,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:54,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:47:54,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:47:54,585 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:47:54,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:47:54,605 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:47:54,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:54,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1155970966, now seen corresponding path program 2 times [2022-11-20 10:47:54,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:47:54,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195533627] [2022-11-20 10:47:54,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:54,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:47:54,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:47:54,613 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:47:54,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:47:54,619 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:47:54,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:54,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1288805114, now seen corresponding path program 4 times [2022-11-20 10:47:54,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:47:54,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581086193] [2022-11-20 10:47:54,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:54,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:47:54,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:47:54,631 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:47:54,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:47:54,641 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:47:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:47:54,792 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:47:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:47:54,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 10:47:54 BoogieIcfgContainer [2022-11-20 10:47:54,822 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 10:47:54,823 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:47:54,823 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:47:54,823 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:47:54,824 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:47:50" (3/4) ... [2022-11-20 10:47:54,826 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-20 10:47:54,860 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 10:47:54,861 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:47:54,861 INFO L158 Benchmark]: Toolchain (without parser) took 5157.58ms. Allocated memory is still 167.8MB. Free memory was 125.4MB in the beginning and 79.9MB in the end (delta: 45.5MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. [2022-11-20 10:47:54,861 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 136.3MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:47:54,862 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.97ms. Allocated memory is still 167.8MB. Free memory was 125.4MB in the beginning and 116.4MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 10:47:54,862 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.36ms. Allocated memory is still 167.8MB. Free memory was 116.4MB in the beginning and 114.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:47:54,862 INFO L158 Benchmark]: Boogie Preprocessor took 15.24ms. Allocated memory is still 167.8MB. Free memory was 114.9MB in the beginning and 114.3MB in the end (delta: 681.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:47:54,863 INFO L158 Benchmark]: RCFGBuilder took 216.95ms. Allocated memory is still 167.8MB. Free memory was 114.3MB in the beginning and 105.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 10:47:54,863 INFO L158 Benchmark]: BuchiAutomizer took 4668.23ms. Allocated memory is still 167.8MB. Free memory was 105.9MB in the beginning and 81.9MB in the end (delta: 24.0MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2022-11-20 10:47:54,863 INFO L158 Benchmark]: Witness Printer took 37.85ms. Allocated memory is still 167.8MB. Free memory was 81.9MB in the beginning and 79.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:47:54,865 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 136.3MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 178.97ms. Allocated memory is still 167.8MB. Free memory was 125.4MB in the beginning and 116.4MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.36ms. Allocated memory is still 167.8MB. Free memory was 116.4MB in the beginning and 114.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.24ms. Allocated memory is still 167.8MB. Free memory was 114.9MB in the beginning and 114.3MB in the end (delta: 681.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 216.95ms. Allocated memory is still 167.8MB. Free memory was 114.3MB in the beginning and 105.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4668.23ms. Allocated memory is still 167.8MB. Free memory was 105.9MB in the beginning and 81.9MB in the end (delta: 24.0MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. * Witness Printer took 37.85ms. Allocated memory is still 167.8MB. Free memory was 81.9MB in the beginning and 79.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. 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 7 terminating modules (3 trivial, 3 deterministic, 1 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function i and consists of 5 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 57 and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 7 locations. The remainder module has 26 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.5s and 6 iterations. TraceHistogramMax:6. Analysis of lassos took 3.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 21 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/3 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 60 mSDsluCounter, 67 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 117 IncrementalHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 57 mSDtfsCounter, 117 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax190 hnf100 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq169 hnf94 smp100 dnf151 smp89 tf107 neg96 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 38ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 13]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i > 10 VAL [i=25] [L10] COND TRUE i == 25 [L11] i = 30 VAL [i=30] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=29] [L9] COND TRUE i > 10 VAL [i=29] [L10] COND FALSE !(i == 25) VAL [i=29] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=28] [L9] COND TRUE i > 10 VAL [i=28] [L10] COND FALSE !(i == 25) VAL [i=28] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=27] [L9] COND TRUE i > 10 VAL [i=27] [L10] COND FALSE !(i == 25) VAL [i=27] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=26] [L9] COND TRUE i > 10 VAL [i=26] [L10] COND FALSE !(i == 25) VAL [i=26] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=25] [L9] COND TRUE i > 10 VAL [i=25] [L10] COND TRUE i == 25 [L11] i = 30 VAL [i=30] Loop: [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND TRUE i == 25 [L11] i = 30 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i > 10 VAL [i=25] [L10] COND TRUE i == 25 [L11] i = 30 VAL [i=30] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=29] [L9] COND TRUE i > 10 VAL [i=29] [L10] COND FALSE !(i == 25) VAL [i=29] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=28] [L9] COND TRUE i > 10 VAL [i=28] [L10] COND FALSE !(i == 25) VAL [i=28] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=27] [L9] COND TRUE i > 10 VAL [i=27] [L10] COND FALSE !(i == 25) VAL [i=27] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=26] [L9] COND TRUE i > 10 VAL [i=26] [L10] COND FALSE !(i == 25) VAL [i=26] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=25] [L9] COND TRUE i > 10 VAL [i=25] [L10] COND TRUE i == 25 [L11] i = 30 VAL [i=30] Loop: [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND TRUE i == 25 [L11] i = 30 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-20 10:47:54,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-20 10:47:55,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2022-11-20 10:47:55,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0049ecbe-87eb-4305-9d8b-9509da3aaf94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)