./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 dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Sunset.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ --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-dbf71c6-m [2022-10-17 10:29:51,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:29:51,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:29:51,855 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:29:51,856 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:29:51,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:29:51,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:29:51,868 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:29:51,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:29:51,879 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:29:51,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:29:51,884 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:29:51,884 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:29:51,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:29:51,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:29:51,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:29:51,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:29:51,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:29:51,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:29:51,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:29:51,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:29:51,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:29:51,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:29:51,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:29:51,925 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:29:51,925 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:29:51,926 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:29:51,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:29:51,928 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:29:51,931 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:29:51,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:29:51,933 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:29:51,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:29:51,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:29:51,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:29:51,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:29:51,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:29:51,939 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:29:51,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:29:51,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:29:51,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:29:51,942 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-10-17 10:29:51,987 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:29:51,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:29:51,988 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:29:51,988 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:29:51,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:29:51,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:29:51,990 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:29:51,991 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 10:29:51,991 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 10:29:51,991 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 10:29:51,992 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 10:29:51,992 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 10:29:51,993 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 10:29:51,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:29:51,993 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:29:51,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:29:51,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:29:51,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 10:29:51,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 10:29:51,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 10:29:51,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:29:51,995 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 10:29:51,995 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:29:51,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 10:29:51,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:29:51,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:29:51,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:29:51,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:29:51,998 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 10:29:51,998 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_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6e6a27fda5fa9acea6a4d245576e05450de5374c21de963811f373e2c8febd9 [2022-10-17 10:29:52,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:29:52,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:29:52,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:29:52,372 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:29:52,373 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:29:52,375 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/termination-restricted-15/Sunset.c [2022-10-17 10:29:52,434 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/data/b78cc2905/15858861818448eb83e5794f17046c18/FLAGd269de034 [2022-10-17 10:29:52,852 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:29:52,853 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/sv-benchmarks/c/termination-restricted-15/Sunset.c [2022-10-17 10:29:52,862 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/data/b78cc2905/15858861818448eb83e5794f17046c18/FLAGd269de034 [2022-10-17 10:29:53,278 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/data/b78cc2905/15858861818448eb83e5794f17046c18 [2022-10-17 10:29:53,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:29:53,284 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:29:53,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:29:53,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:29:53,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:29:53,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:29:53" (1/1) ... [2022-10-17 10:29:53,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77531ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:53, skipping insertion in model container [2022-10-17 10:29:53,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:29:53" (1/1) ... [2022-10-17 10:29:53,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:29:53,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:29:53,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:29:53,509 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:29:53,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:29:53,534 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:29:53,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:53 WrapperNode [2022-10-17 10:29:53,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:29:53,536 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:29:53,536 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:29:53,536 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:29:53,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:53" (1/1) ... [2022-10-17 10:29:53,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:53" (1/1) ... [2022-10-17 10:29:53,567 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2022-10-17 10:29:53,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:29:53,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:29:53,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:29:53,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:29:53,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:53" (1/1) ... [2022-10-17 10:29:53,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:53" (1/1) ... [2022-10-17 10:29:53,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:53" (1/1) ... [2022-10-17 10:29:53,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:53" (1/1) ... [2022-10-17 10:29:53,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:53" (1/1) ... [2022-10-17 10:29:53,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:53" (1/1) ... [2022-10-17 10:29:53,585 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:53" (1/1) ... [2022-10-17 10:29:53,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:53" (1/1) ... [2022-10-17 10:29:53,587 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:29:53,588 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:29:53,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:29:53,589 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:29:53,590 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:53" (1/1) ... [2022-10-17 10:29:53,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:53,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:53,627 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:53,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 10:29:53,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:29:53,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:29:53,770 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:29:53,774 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:29:53,855 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:29:53,862 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:29:53,862 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:29:53,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:29:53 BoogieIcfgContainer [2022-10-17 10:29:53,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:29:53,865 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 10:29:53,866 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 10:29:53,870 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 10:29:53,870 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:29:53,871 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 10:29:53" (1/3) ... [2022-10-17 10:29:53,872 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@10464b9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:29:53, skipping insertion in model container [2022-10-17 10:29:53,872 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:29:53,872 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:53" (2/3) ... [2022-10-17 10:29:53,873 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@10464b9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:29:53, skipping insertion in model container [2022-10-17 10:29:53,873 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:29:53,873 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:29:53" (3/3) ... [2022-10-17 10:29:53,874 INFO L332 chiAutomizerObserver]: Analyzing ICFG Sunset.c [2022-10-17 10:29:53,930 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 10:29:53,930 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 10:29:53,930 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 10:29:53,930 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 10:29:53,930 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 10:29:53,930 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 10:29:53,930 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 10:29:53,931 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 10:29:53,935 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) [2022-10-17 10:29:53,953 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:29:53,953 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:29:53,953 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:29:53,958 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:29:53,958 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:29:53,958 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 10:29:53,959 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) [2022-10-17 10:29:53,960 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:29:53,960 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:29:53,960 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:29:53,961 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:29:53,961 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:29:53,968 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 [2022-10-17 10:29:53,969 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 [2022-10-17 10:29:53,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:29:53,975 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-10-17 10:29:53,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:29:53,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551169396] [2022-10-17 10:29:53,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:29:53,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:29:54,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:54,058 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:29:54,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:54,076 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:29:54,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:29:54,080 INFO L85 PathProgramCache]: Analyzing trace with hash 40878, now seen corresponding path program 1 times [2022-10-17 10:29:54,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:29:54,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478058911] [2022-10-17 10:29:54,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:29:54,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:29:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:54,093 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:29:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:54,099 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:29:54,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:29:54,101 INFO L85 PathProgramCache]: Analyzing trace with hash 28699820, now seen corresponding path program 1 times [2022-10-17 10:29:54,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:29:54,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013949064] [2022-10-17 10:29:54,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:29:54,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:29:54,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:54,111 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:29:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:54,117 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:29:54,189 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:29:54,190 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:29:54,190 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:29:54,190 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:29:54,190 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:29:54,190 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:54,191 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:29:54,191 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:29:54,191 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration1_Loop [2022-10-17 10:29:54,191 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:29:54,191 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:29:54,209 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:29:54,222 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:29:54,227 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:29:54,431 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:29:54,432 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:29:54,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:54,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:54,436 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:54,441 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:29:54,442 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:29:54,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-10-17 10:29:54,482 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:29:54,482 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: [] [2022-10-17 10:29:54,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-10-17 10:29:54,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:54,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:54,519 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:54,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-10-17 10:29:54,525 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:29:54,525 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:29:54,565 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:29:54,565 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: [] [2022-10-17 10:29:54,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-10-17 10:29:54,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:54,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:54,593 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:54,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-10-17 10:29:54,598 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:29:54,599 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:29:54,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:29:54,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:54,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:54,648 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:54,650 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:29:54,650 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:29:54,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-10-17 10:29:54,709 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:29:54,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-10-17 10:29:54,715 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:29:54,715 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:29:54,715 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:29:54,715 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:29:54,715 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:29:54,715 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:54,715 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:29:54,716 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:29:54,716 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration1_Loop [2022-10-17 10:29:54,716 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:29:54,716 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:29:54,718 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:29:54,731 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:29:54,737 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:29:54,867 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:29:54,872 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:29:54,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:54,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:54,878 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:54,880 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 [2022-10-17 10:29:54,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:29:54,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-10-17 10:29:54,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:29:54,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:29:54,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:29:54,903 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:29:54,903 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:29:54,926 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:29:54,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-10-17 10:29:54,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:54,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:54,970 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:54,977 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 [2022-10-17 10:29:54,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:29:54,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:29:54,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:29:54,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:29:54,995 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:29:54,995 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:29:55,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-10-17 10:29:55,012 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:29:55,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-10-17 10:29:55,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:55,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:55,042 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:55,066 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 [2022-10-17 10:29:55,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-10-17 10:29:55,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:29:55,074 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:29:55,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:29:55,074 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-10-17 10:29:55,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:29:55,087 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:29:55,088 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:29:55,116 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:29:55,129 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-10-17 10:29:55,130 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:29:55,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:55,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:55,179 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:55,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-10-17 10:29:55,180 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:29:55,180 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:29:55,180 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:29:55,181 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 [] [2022-10-17 10:29:55,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-10-17 10:29:55,208 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:29:55,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:29:55,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:29:55,252 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:29:55,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:29:55,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:29:55,272 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:29:55,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:29:55,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:29:55,342 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 [2022-10-17 10:29:55,344 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) [2022-10-17 10:29:55,389 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. [2022-10-17 10:29:55,391 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 [2022-10-17 10:29:55,396 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) [2022-10-17 10:29:55,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2022-10-17 10:29:55,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 2 letters. Loop has 3 letters. [2022-10-17 10:29:55,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:29:55,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 5 letters. Loop has 3 letters. [2022-10-17 10:29:55,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:29:55,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 2 letters. Loop has 6 letters. [2022-10-17 10:29:55,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:29:55,400 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 36 transitions. [2022-10-17 10:29:55,403 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:29:55,406 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 10 states and 15 transitions. [2022-10-17 10:29:55,407 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-10-17 10:29:55,407 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-10-17 10:29:55,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 15 transitions. [2022-10-17 10:29:55,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:29:55,408 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 15 transitions. [2022-10-17 10:29:55,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 15 transitions. [2022-10-17 10:29:55,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-10-17 10:29:55,432 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) [2022-10-17 10:29:55,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 15 transitions. [2022-10-17 10:29:55,433 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 15 transitions. [2022-10-17 10:29:55,433 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2022-10-17 10:29:55,434 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-10-17 10:29:55,434 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 15 transitions. [2022-10-17 10:29:55,435 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:29:55,435 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:29:55,435 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:29:55,435 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-10-17 10:29:55,435 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:29:55,436 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 [2022-10-17 10:29:55,436 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 [2022-10-17 10:29:55,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:29:55,437 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2022-10-17 10:29:55,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:29:55,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733634874] [2022-10-17 10:29:55,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:29:55,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:29:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:55,443 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:29:55,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:55,446 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:29:55,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:29:55,447 INFO L85 PathProgramCache]: Analyzing trace with hash 49368, now seen corresponding path program 2 times [2022-10-17 10:29:55,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:29:55,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151746705] [2022-10-17 10:29:55,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:29:55,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:29:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:55,453 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:29:55,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:55,457 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:29:55,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:29:55,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1810664019, now seen corresponding path program 1 times [2022-10-17 10:29:55,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:29:55,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037366197] [2022-10-17 10:29:55,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:29:55,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:29:55,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:55,466 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:29:55,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:55,472 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:29:55,495 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:29:55,495 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:29:55,496 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:29:55,496 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:29:55,496 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:29:55,496 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:55,496 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:29:55,496 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:29:55,496 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration2_Loop [2022-10-17 10:29:55,496 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:29:55,497 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:29:55,498 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:29:55,501 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:29:55,504 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:29:55,580 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:29:55,580 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:29:55,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:55,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:55,586 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:55,592 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:29:55,592 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:29:55,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-10-17 10:29:55,617 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:29:55,617 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: [] [2022-10-17 10:29:55,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-10-17 10:29:55,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:55,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:55,653 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:55,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-10-17 10:29:55,657 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:29:55,657 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:29:55,678 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:29:55,678 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: [] [2022-10-17 10:29:55,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-10-17 10:29:55,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:55,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:55,718 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:55,725 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:29:55,726 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:29:55,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-10-17 10:29:55,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-10-17 10:29:55,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:55,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:55,782 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:55,787 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:29:55,788 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:29:55,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-10-17 10:29:56,007 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:29:56,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-10-17 10:29:56,009 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:29:56,010 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:29:56,010 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:29:56,010 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:29:56,010 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:29:56,010 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:56,010 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:29:56,010 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:29:56,010 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration2_Loop [2022-10-17 10:29:56,011 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:29:56,011 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:29:56,012 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:29:56,016 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:29:56,025 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:29:56,102 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:29:56,102 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:29:56,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:56,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:56,106 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:56,111 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 [2022-10-17 10:29:56,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:29:56,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:29:56,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:29:56,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:29:56,123 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:29:56,123 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:29:56,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-10-17 10:29:56,145 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:29:56,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-10-17 10:29:56,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:56,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:56,182 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:56,186 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 [2022-10-17 10:29:56,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:29:56,195 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:29:56,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:29:56,195 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-10-17 10:29:56,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:29:56,199 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:29:56,199 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:29:56,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-10-17 10:29:56,217 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:29:56,233 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:29:56,233 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-10-17 10:29:56,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:56,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:56,238 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:56,240 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:29:56,240 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:29:56,240 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:29:56,240 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 [] [2022-10-17 10:29:56,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-10-17 10:29:56,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-10-17 10:29:56,279 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:29:56,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:29:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:29:56,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:29:56,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:29:56,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:29:56,305 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:29:56,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:29:56,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:29:56,346 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 [2022-10-17 10:29:56,346 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) [2022-10-17 10:29:56,371 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. [2022-10-17 10:29:56,371 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 [2022-10-17 10:29:56,372 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) [2022-10-17 10:29:56,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2022-10-17 10:29:56,372 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 3 letters. [2022-10-17 10:29:56,373 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:29:56,373 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2022-10-17 10:29:56,374 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:29:56,374 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 6 letters. [2022-10-17 10:29:56,374 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:29:56,374 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 33 transitions. [2022-10-17 10:29:56,376 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:29:56,378 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 18 states and 28 transitions. [2022-10-17 10:29:56,378 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-10-17 10:29:56,378 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-10-17 10:29:56,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 28 transitions. [2022-10-17 10:29:56,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:29:56,378 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 28 transitions. [2022-10-17 10:29:56,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 28 transitions. [2022-10-17 10:29:56,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2022-10-17 10:29:56,382 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) [2022-10-17 10:29:56,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2022-10-17 10:29:56,385 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 26 transitions. [2022-10-17 10:29:56,385 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2022-10-17 10:29:56,385 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-10-17 10:29:56,386 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 26 transitions. [2022-10-17 10:29:56,386 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:29:56,388 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:29:56,388 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:29:56,388 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1] [2022-10-17 10:29:56,388 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:29:56,389 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 [2022-10-17 10:29:56,390 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 [2022-10-17 10:29:56,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:29:56,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1810664017, now seen corresponding path program 1 times [2022-10-17 10:29:56,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:29:56,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637700710] [2022-10-17 10:29:56,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:29:56,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:29:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:29:56,488 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:29:56,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:29:56,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637700710] [2022-10-17 10:29:56,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637700710] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:29:56,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:29:56,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:29:56,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426840487] [2022-10-17 10:29:56,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:29:56,493 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:29:56,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:29:56,493 INFO L85 PathProgramCache]: Analyzing trace with hash 49368, now seen corresponding path program 3 times [2022-10-17 10:29:56,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:29:56,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359726298] [2022-10-17 10:29:56,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:29:56,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:29:56,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:56,498 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:29:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:56,502 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:29:56,530 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:29:56,530 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:29:56,530 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:29:56,530 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:29:56,530 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:29:56,530 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:56,530 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:29:56,530 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:29:56,531 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration3_Loop [2022-10-17 10:29:56,531 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:29:56,531 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:29:56,532 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:29:56,536 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:29:56,539 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:29:56,660 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:29:56,660 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:29:56,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:56,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:56,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-10-17 10:29:56,681 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:56,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-10-17 10:29:56,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-10-17 10:29:56,701 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:29:56,701 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:29:56,714 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:29:56,714 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: [] [2022-10-17 10:29:56,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-10-17 10:29:56,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:56,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:56,736 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:56,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-10-17 10:29:56,739 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:29:56,739 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:29:56,757 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:29:56,757 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: [] [2022-10-17 10:29:56,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-10-17 10:29:56,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:56,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:56,802 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:56,809 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:29:56,810 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:29:56,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-10-17 10:29:56,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-10-17 10:29:56,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:56,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:56,863 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:56,868 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:29:56,868 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:29:56,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-10-17 10:29:57,117 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:29:57,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-10-17 10:29:57,125 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:29:57,125 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:29:57,125 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:29:57,126 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:29:57,126 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:29:57,126 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:57,126 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:29:57,126 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:29:57,126 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration3_Loop [2022-10-17 10:29:57,126 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:29:57,126 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:29:57,127 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:29:57,132 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:29:57,136 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:29:57,207 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:29:57,208 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:29:57,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:57,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:57,210 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:57,221 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 [2022-10-17 10:29:57,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:29:57,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:29:57,232 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:29:57,232 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:29:57,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-10-17 10:29:57,237 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:29:57,237 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:29:57,257 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:29:57,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-10-17 10:29:57,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:57,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:57,298 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:57,301 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 [2022-10-17 10:29:57,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-10-17 10:29:57,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:29:57,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:29:57,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:29:57,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:29:57,313 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:29:57,313 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:29:57,329 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:29:57,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-10-17 10:29:57,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:57,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:57,367 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:57,370 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 [2022-10-17 10:29:57,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:29:57,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:29:57,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:29:57,379 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-10-17 10:29:57,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:29:57,381 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:29:57,381 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:29:57,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-10-17 10:29:57,397 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:29:57,401 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:29:57,401 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-10-17 10:29:57,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:57,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:57,403 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:57,405 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:29:57,405 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:29:57,405 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:29:57,405 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 [] [2022-10-17 10:29:57,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-10-17 10:29:57,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-10-17 10:29:57,445 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:29:57,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:29:57,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:29:57,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:29:57,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:29:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:29:57,491 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:29:57,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:29:57,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:29:57,536 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 [2022-10-17 10:29:57,536 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) [2022-10-17 10:29:57,569 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. [2022-10-17 10:29:57,569 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 [2022-10-17 10:29:57,571 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) [2022-10-17 10:29:57,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2022-10-17 10:29:57,572 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2022-10-17 10:29:57,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:29:57,573 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-10-17 10:29:57,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:29:57,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:29:57,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:29:57,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:29:57,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:29:57,605 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:29:57,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:29:57,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:29:57,645 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 [2022-10-17 10:29:57,645 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) [2022-10-17 10:29:57,684 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. [2022-10-17 10:29:57,684 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 [2022-10-17 10:29:57,686 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) [2022-10-17 10:29:57,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2022-10-17 10:29:57,687 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2022-10-17 10:29:57,687 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:29:57,687 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-10-17 10:29:57,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:29:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:29:57,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:29:57,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:29:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:29:57,712 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:29:57,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:29:57,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:29:57,733 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 [2022-10-17 10:29:57,733 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) [2022-10-17 10:29:57,755 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. [2022-10-17 10:29:57,756 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 [2022-10-17 10:29:57,757 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) [2022-10-17 10:29:57,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-10-17 10:29:57,757 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 7 letters. Loop has 3 letters. [2022-10-17 10:29:57,758 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:29:57,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 3 letters. [2022-10-17 10:29:57,758 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:29:57,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 7 letters. Loop has 6 letters. [2022-10-17 10:29:57,759 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:29:57,759 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 50 transitions. [2022-10-17 10:29:57,761 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-10-17 10:29:57,761 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 24 states and 37 transitions. [2022-10-17 10:29:57,762 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-10-17 10:29:57,762 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-10-17 10:29:57,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 37 transitions. [2022-10-17 10:29:57,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:29:57,762 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 37 transitions. [2022-10-17 10:29:57,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 37 transitions. [2022-10-17 10:29:57,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 16. [2022-10-17 10:29:57,764 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) [2022-10-17 10:29:57,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 25 transitions. [2022-10-17 10:29:57,765 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 25 transitions. [2022-10-17 10:29:57,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:29:57,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:29:57,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:29:57,768 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) [2022-10-17 10:29:57,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:29:57,800 INFO L93 Difference]: Finished difference Result 19 states and 29 transitions. [2022-10-17 10:29:57,800 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 29 transitions. [2022-10-17 10:29:57,801 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2022-10-17 10:29:57,802 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 29 transitions. [2022-10-17 10:29:57,802 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-10-17 10:29:57,802 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-10-17 10:29:57,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 29 transitions. [2022-10-17 10:29:57,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:29:57,802 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 29 transitions. [2022-10-17 10:29:57,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 29 transitions. [2022-10-17 10:29:57,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2022-10-17 10:29:57,804 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) [2022-10-17 10:29:57,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2022-10-17 10:29:57,805 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 26 transitions. [2022-10-17 10:29:57,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:29:57,806 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2022-10-17 10:29:57,806 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-10-17 10:29:57,806 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 26 transitions. [2022-10-17 10:29:57,807 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2022-10-17 10:29:57,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:29:57,807 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:29:57,808 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-10-17 10:29:57,808 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:29:57,808 INFO L748 eck$LassoCheckResult]: Stem: 426#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 427#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 430#L13-1 assume !!(main_~i~0#1 > 10); 428#L10 [2022-10-17 10:29:57,808 INFO L750 eck$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 [2022-10-17 10:29:57,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:29:57,809 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-10-17 10:29:57,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:29:57,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146356332] [2022-10-17 10:29:57,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:29:57,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:29:57,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:57,813 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:29:57,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:57,815 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:29:57,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:29:57,816 INFO L85 PathProgramCache]: Analyzing trace with hash 43938, now seen corresponding path program 1 times [2022-10-17 10:29:57,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:29:57,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398874617] [2022-10-17 10:29:57,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:29:57,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:29:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:29:57,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:29:57,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:29:57,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398874617] [2022-10-17 10:29:57,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398874617] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:29:57,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:29:57,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:29:57,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414444989] [2022-10-17 10:29:57,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:29:57,834 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:29:57,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:29:57,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:29:57,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:29:57,835 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) [2022-10-17 10:29:57,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:29:57,845 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2022-10-17 10:29:57,845 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2022-10-17 10:29:57,846 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-10-17 10:29:57,847 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 22 transitions. [2022-10-17 10:29:57,847 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-10-17 10:29:57,847 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-10-17 10:29:57,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 22 transitions. [2022-10-17 10:29:57,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:29:57,847 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 22 transitions. [2022-10-17 10:29:57,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 22 transitions. [2022-10-17 10:29:57,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2022-10-17 10:29:57,849 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) [2022-10-17 10:29:57,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2022-10-17 10:29:57,850 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-10-17 10:29:57,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:29:57,851 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-10-17 10:29:57,851 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-10-17 10:29:57,851 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2022-10-17 10:29:57,852 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-10-17 10:29:57,852 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:29:57,852 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:29:57,852 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 1, 1, 1] [2022-10-17 10:29:57,853 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1] [2022-10-17 10:29:57,853 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 [2022-10-17 10:29:57,853 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 [2022-10-17 10:29:57,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:29:57,854 INFO L85 PathProgramCache]: Analyzing trace with hash 997539140, now seen corresponding path program 2 times [2022-10-17 10:29:57,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:29:57,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696728225] [2022-10-17 10:29:57,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:29:57,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:29:57,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:29:57,925 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:29:57,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:29:57,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696728225] [2022-10-17 10:29:57,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696728225] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:29:57,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514357293] [2022-10-17 10:29:57,926 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:29:57,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:29:57,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:57,930 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:29:57,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-10-17 10:29:57,960 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-17 10:29:57,960 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:29:57,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:29:57,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:29:57,982 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:29:57,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:29:58,025 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:29:58,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514357293] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:29:58,025 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:29:58,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-10-17 10:29:58,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775129971] [2022-10-17 10:29:58,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:29:58,026 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:29:58,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:29:58,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1470741663, now seen corresponding path program 1 times [2022-10-17 10:29:58,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:29:58,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496316438] [2022-10-17 10:29:58,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:29:58,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:29:58,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:58,043 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:29:58,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:58,056 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:29:58,088 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:29:58,088 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:29:58,088 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:29:58,088 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:29:58,088 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:29:58,088 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:58,089 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:29:58,089 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:29:58,089 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration5_Loop [2022-10-17 10:29:58,089 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:29:58,089 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:29:58,090 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:29:58,093 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:29:58,097 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:29:58,131 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:29:58,132 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:29:58,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:58,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:58,133 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:58,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:29:58,135 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:29:58,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-10-17 10:29:58,147 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:29:58,147 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: [] [2022-10-17 10:29:58,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-10-17 10:29:58,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:58,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:58,177 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:58,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-10-17 10:29:58,198 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:29:58,198 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:29:58,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-10-17 10:29:58,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-10-17 10:29:58,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:58,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:58,239 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:58,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-10-17 10:29:58,243 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:29:58,243 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:29:58,262 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:29:58,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-10-17 10:29:58,285 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:29:58,285 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:29:58,285 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:29:58,285 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:29:58,285 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:29:58,285 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:58,285 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:29:58,285 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:29:58,285 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration5_Loop [2022-10-17 10:29:58,285 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:29:58,285 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:29:58,286 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:29:58,291 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:29:58,295 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:29:58,331 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:29:58,332 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:29:58,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:58,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:58,338 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:58,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-10-17 10:29:58,344 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 [2022-10-17 10:29:58,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:29:58,350 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:29:58,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:29:58,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:29:58,351 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:29:58,352 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:29:58,352 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:29:58,366 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:29:58,368 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:29:58,369 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:29:58,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:29:58,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:58,374 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:58,375 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:29:58,375 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:29:58,375 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:29:58,376 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 [] [2022-10-17 10:29:58,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-10-17 10:29:58,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-10-17 10:29:58,401 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:29:58,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:29:58,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:29:58,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:29:58,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:29:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:29:58,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 10:29:58,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:29:58,472 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:29:58,473 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 [2022-10-17 10:29:58,473 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) [2022-10-17 10:29:58,495 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. [2022-10-17 10:29:58,497 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 [2022-10-17 10:29:58,497 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) [2022-10-17 10:29:58,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-10-17 10:29:58,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 6 letters. [2022-10-17 10:29:58,498 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:29:58,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 16 letters. Loop has 6 letters. [2022-10-17 10:29:58,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:29:58,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 12 letters. [2022-10-17 10:29:58,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:29:58,499 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 37 transitions. [2022-10-17 10:29:58,500 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-10-17 10:29:58,501 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 30 states and 36 transitions. [2022-10-17 10:29:58,501 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-10-17 10:29:58,501 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-10-17 10:29:58,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 36 transitions. [2022-10-17 10:29:58,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:29:58,501 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 36 transitions. [2022-10-17 10:29:58,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 36 transitions. [2022-10-17 10:29:58,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2022-10-17 10:29:58,503 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) [2022-10-17 10:29:58,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2022-10-17 10:29:58,504 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 32 transitions. [2022-10-17 10:29:58,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:29:58,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:29:58,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:29:58,505 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) [2022-10-17 10:29:58,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:29:58,526 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2022-10-17 10:29:58,526 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 40 transitions. [2022-10-17 10:29:58,527 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-10-17 10:29:58,528 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 31 states and 35 transitions. [2022-10-17 10:29:58,528 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-10-17 10:29:58,528 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-10-17 10:29:58,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 35 transitions. [2022-10-17 10:29:58,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:29:58,529 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 35 transitions. [2022-10-17 10:29:58,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 35 transitions. [2022-10-17 10:29:58,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2022-10-17 10:29:58,531 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) [2022-10-17 10:29:58,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2022-10-17 10:29:58,531 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 30 transitions. [2022-10-17 10:29:58,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:29:58,532 INFO L428 stractBuchiCegarLoop]: Abstraction has 26 states and 30 transitions. [2022-10-17 10:29:58,533 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-10-17 10:29:58,533 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 30 transitions. [2022-10-17 10:29:58,533 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2022-10-17 10:29:58,534 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:29:58,534 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:29:58,534 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 5, 4, 2, 1, 1] [2022-10-17 10:29:58,535 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [5, 5, 4, 1] [2022-10-17 10:29:58,538 INFO L748 eck$LassoCheckResult]: Stem: 705#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 706#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 708#L13-1 assume !!(main_~i~0#1 > 10); 707#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 702#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 701#L13-1 assume !!(main_~i~0#1 > 10); 700#L10 assume !(25 == main_~i~0#1); 703#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 704#L13-1 assume !!(main_~i~0#1 > 10); 724#L10 assume !(25 == main_~i~0#1); 723#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 722#L13-1 assume !!(main_~i~0#1 > 10); 721#L10 assume !(25 == main_~i~0#1); 720#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 719#L13-1 assume !!(main_~i~0#1 > 10); 718#L10 assume !(25 == main_~i~0#1); 714#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 715#L13-1 assume !!(main_~i~0#1 > 10); 713#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 712#L10-2 [2022-10-17 10:29:58,538 INFO L750 eck$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 [2022-10-17 10:29:58,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:29:58,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1587470191, now seen corresponding path program 3 times [2022-10-17 10:29:58,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:29:58,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651561544] [2022-10-17 10:29:58,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:29:58,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:29:58,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:58,547 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:29:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:58,557 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:29:58,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:29:58,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1155970966, now seen corresponding path program 2 times [2022-10-17 10:29:58,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:29:58,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080133915] [2022-10-17 10:29:58,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:29:58,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:29:58,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:58,571 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:29:58,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:58,590 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:29:58,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:29:58,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1288805114, now seen corresponding path program 4 times [2022-10-17 10:29:58,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:29:58,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055438231] [2022-10-17 10:29:58,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:29:58,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:29:58,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:58,629 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:29:58,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:58,640 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:29:58,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:58,768 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:29:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:58,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.10 10:29:58 BoogieIcfgContainer [2022-10-17 10:29:58,801 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-10-17 10:29:58,801 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:29:58,801 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:29:58,802 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:29:58,802 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:29:53" (3/4) ... [2022-10-17 10:29:58,804 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-10-17 10:29:58,841 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/witness.graphml [2022-10-17 10:29:58,841 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:29:58,842 INFO L158 Benchmark]: Toolchain (without parser) took 5557.32ms. Allocated memory was 83.9MB in the beginning and 111.1MB in the end (delta: 27.3MB). Free memory was 44.5MB in the beginning and 49.7MB in the end (delta: -5.3MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2022-10-17 10:29:58,842 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory was 60.4MB in the beginning and 60.3MB in the end (delta: 35.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:29:58,842 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.67ms. Allocated memory was 83.9MB in the beginning and 111.1MB in the end (delta: 27.3MB). Free memory was 44.2MB in the beginning and 88.6MB in the end (delta: -44.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 10:29:58,843 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.83ms. Allocated memory is still 111.1MB. Free memory was 88.2MB in the beginning and 87.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:29:58,843 INFO L158 Benchmark]: Boogie Preprocessor took 19.42ms. Allocated memory is still 111.1MB. Free memory was 87.0MB in the beginning and 86.1MB in the end (delta: 951.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:29:58,844 INFO L158 Benchmark]: RCFGBuilder took 276.31ms. Allocated memory is still 111.1MB. Free memory was 86.1MB in the beginning and 77.4MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:29:58,844 INFO L158 Benchmark]: BuchiAutomizer took 4935.38ms. Allocated memory is still 111.1MB. Free memory was 77.4MB in the beginning and 51.8MB in the end (delta: 25.6MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2022-10-17 10:29:58,844 INFO L158 Benchmark]: Witness Printer took 39.70ms. Allocated memory is still 111.1MB. Free memory was 51.8MB in the beginning and 49.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:29:58,847 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory was 60.4MB in the beginning and 60.3MB in the end (delta: 35.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.67ms. Allocated memory was 83.9MB in the beginning and 111.1MB in the end (delta: 27.3MB). Free memory was 44.2MB in the beginning and 88.6MB in the end (delta: -44.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.83ms. Allocated memory is still 111.1MB. Free memory was 88.2MB in the beginning and 87.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.42ms. Allocated memory is still 111.1MB. Free memory was 87.0MB in the beginning and 86.1MB in the end (delta: 951.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 276.31ms. Allocated memory is still 111.1MB. Free memory was 86.1MB in the beginning and 77.4MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4935.38ms. Allocated memory is still 111.1MB. Free memory was 77.4MB in the beginning and 51.8MB in the end (delta: 25.6MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. * Witness Printer took 39.70ms. Allocated memory is still 111.1MB. Free memory was 51.8MB in the beginning and 49.7MB in the end (delta: 2.1MB). 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 4.8s and 6 iterations. TraceHistogramMax:6. Analysis of lassos took 3.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. 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: 52ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s 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! [2022-10-17 10:29:58,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-10-17 10:29:59,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2022-10-17 10:29:59,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efdc88f-3dfd-454c-9712-1a40fec3e045/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)