./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.04.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73c2535-fdb1-4676-bc14-18d90ef9a0c8/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73c2535-fdb1-4676-bc14-18d90ef9a0c8/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73c2535-fdb1-4676-bc14-18d90ef9a0c8/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73c2535-fdb1-4676-bc14-18d90ef9a0c8/bin/uautomizer-Z5i5R5N3CC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73c2535-fdb1-4676-bc14-18d90ef9a0c8/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73c2535-fdb1-4676-bc14-18d90ef9a0c8/bin/uautomizer-Z5i5R5N3CC --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 43fde4d70b7da804a59b99f40748f062520fcfbd ................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:23:35,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:23:35,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:23:35,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:23:35,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:23:35,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:23:35,088 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:23:35,090 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:23:35,092 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:23:35,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:23:35,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:23:35,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:23:35,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:23:35,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:23:35,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:23:35,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:23:35,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:23:35,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:23:35,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:23:35,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:23:35,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:23:35,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:23:35,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:23:35,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:23:35,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:23:35,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:23:35,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:23:35,135 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:23:35,138 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:23:35,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:23:35,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:23:35,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:23:35,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:23:35,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:23:35,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:23:35,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:23:35,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:23:35,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:23:35,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:23:35,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:23:35,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:23:35,153 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73c2535-fdb1-4676-bc14-18d90ef9a0c8/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-11 00:23:35,189 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:23:35,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:23:35,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:23:35,193 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:23:35,193 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:23:35,193 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-11 00:23:35,193 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-11 00:23:35,194 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-11 00:23:35,194 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-11 00:23:35,194 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-11 00:23:35,194 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-11 00:23:35,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:23:35,195 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:23:35,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:23:35,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:23:35,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-11 00:23:35,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-11 00:23:35,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-11 00:23:35,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:23:35,196 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-11 00:23:35,196 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:23:35,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-11 00:23:35,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:23:35,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:23:35,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:23:35,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:23:35,198 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:23:35,199 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-11 00:23:35,199 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_e73c2535-fdb1-4676-bc14-18d90ef9a0c8/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73c2535-fdb1-4676-bc14-18d90ef9a0c8/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43fde4d70b7da804a59b99f40748f062520fcfbd [2021-10-11 00:23:35,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:23:35,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:23:35,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:23:35,536 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:23:35,538 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:23:35,539 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73c2535-fdb1-4676-bc14-18d90ef9a0c8/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-restricted-15/b.04.c [2021-10-11 00:23:35,606 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73c2535-fdb1-4676-bc14-18d90ef9a0c8/bin/uautomizer-Z5i5R5N3CC/data/2ea751f3c/6b8b4450f93d46e195a65bc4fd8d5756/FLAGa77fae454 [2021-10-11 00:23:36,024 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:23:36,024 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73c2535-fdb1-4676-bc14-18d90ef9a0c8/sv-benchmarks/c/termination-restricted-15/b.04.c [2021-10-11 00:23:36,029 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73c2535-fdb1-4676-bc14-18d90ef9a0c8/bin/uautomizer-Z5i5R5N3CC/data/2ea751f3c/6b8b4450f93d46e195a65bc4fd8d5756/FLAGa77fae454 [2021-10-11 00:23:36,444 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73c2535-fdb1-4676-bc14-18d90ef9a0c8/bin/uautomizer-Z5i5R5N3CC/data/2ea751f3c/6b8b4450f93d46e195a65bc4fd8d5756 [2021-10-11 00:23:36,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:23:36,448 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:23:36,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:23:36,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:23:36,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:23:36,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:23:36" (1/1) ... [2021-10-11 00:23:36,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54fe5af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:36, skipping insertion in model container [2021-10-11 00:23:36,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:23:36" (1/1) ... [2021-10-11 00:23:36,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:23:36,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:23:36,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:23:36,686 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:23:36,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:23:36,710 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:23:36,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:36 WrapperNode [2021-10-11 00:23:36,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:23:36,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:23:36,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:23:36,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:23:36,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:36" (1/1) ... [2021-10-11 00:23:36,726 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:36" (1/1) ... [2021-10-11 00:23:36,743 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:23:36,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:23:36,744 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:23:36,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:23:36,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:36" (1/1) ... [2021-10-11 00:23:36,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:36" (1/1) ... [2021-10-11 00:23:36,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:36" (1/1) ... [2021-10-11 00:23:36,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:36" (1/1) ... [2021-10-11 00:23:36,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:36" (1/1) ... [2021-10-11 00:23:36,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:36" (1/1) ... [2021-10-11 00:23:36,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:36" (1/1) ... [2021-10-11 00:23:36,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:23:36,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:23:36,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:23:36,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:23:36,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:36" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73c2535-fdb1-4676-bc14-18d90ef9a0c8/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:36,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:23:36,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:23:36,990 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:23:36,991 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 00:23:36,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:36 BoogieIcfgContainer [2021-10-11 00:23:36,993 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:23:36,994 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-11 00:23:36,994 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-11 00:23:36,998 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-11 00:23:36,999 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:23:36,999 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 11.10 12:23:36" (1/3) ... [2021-10-11 00:23:37,002 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b9f99a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:23:37, skipping insertion in model container [2021-10-11 00:23:37,003 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:23:37,003 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:36" (2/3) ... [2021-10-11 00:23:37,003 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b9f99a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:23:37, skipping insertion in model container [2021-10-11 00:23:37,004 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:23:37,004 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:36" (3/3) ... [2021-10-11 00:23:37,005 INFO L389 chiAutomizerObserver]: Analyzing ICFG b.04.c [2021-10-11 00:23:37,056 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-11 00:23:37,056 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-11 00:23:37,056 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-11 00:23:37,056 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:23:37,056 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:23:37,057 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-11 00:23:37,057 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:23:37,061 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-11 00:23:37,074 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2021-10-11 00:23:37,092 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-11 00:23:37,092 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:23:37,093 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:23:37,099 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-11 00:23:37,099 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-11 00:23:37,099 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-11 00:23:37,099 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2021-10-11 00:23:37,100 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-11 00:23:37,100 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:23:37,101 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:23:37,101 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-11 00:23:37,101 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-11 00:23:37,108 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~tmp~0;havoc main_~x~0;havoc main_~y~0;havoc main_~tmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~tmp~0 := main_#t~nondet2;havoc main_#t~nondet2; 7#L10-2true [2021-10-11 00:23:37,109 INFO L796 eck$LassoCheckResult]: Loop: 7#L10-2true assume !!(main_~x~0 > main_~y~0);main_~tmp~0 := main_~x~0;main_~x~0 := main_~y~0;main_~y~0 := main_~tmp~0; 7#L10-2true [2021-10-11 00:23:37,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:37,116 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-11 00:23:37,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:37,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659336094] [2021-10-11 00:23:37,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:37,192 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:37,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:37,198 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:37,211 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:23:37,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:37,213 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2021-10-11 00:23:37,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:37,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735159036] [2021-10-11 00:23:37,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:37,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:37,225 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:37,230 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:37,232 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:23:37,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:37,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-11 00:23:37,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:37,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192724814] [2021-10-11 00:23:37,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:37,243 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:37,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:37,249 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:37,251 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:23:37,310 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:23:37,311 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:23:37,311 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:23:37,311 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:23:37,311 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:23:37,311 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:37,312 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:23:37,312 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:23:37,312 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.04.c_Iteration1_Loop [2021-10-11 00:23:37,312 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:23:37,312 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:23:37,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:37,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:37,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:37,507 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:23:37,508 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73c2535-fdb1-4676-bc14-18d90ef9a0c8/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:37,539 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:23:37,540 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:37,578 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:23:37,578 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: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73c2535-fdb1-4676-bc14-18d90ef9a0c8/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:37,618 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:23:37,619 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:37,639 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:23:37,639 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: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73c2535-fdb1-4676-bc14-18d90ef9a0c8/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:37,677 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:23:37,677 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73c2535-fdb1-4676-bc14-18d90ef9a0c8/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:37,731 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:23:37,731 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:23:43,513 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:23:43,517 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:23:43,518 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:23:43,518 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:23:43,518 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:23:43,518 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:23:43,518 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:43,518 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:23:43,518 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:23:43,518 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.04.c_Iteration1_Loop [2021-10-11 00:23:43,518 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:23:43,519 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:23:43,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:43,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:43,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:43,645 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:23:43,650 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73c2535-fdb1-4676-bc14-18d90ef9a0c8/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:43,658 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:23:43,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:23:43,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:23:43,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:23:43,661 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:23:43,671 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:23:43,671 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:23:43,691 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73c2535-fdb1-4676-bc14-18d90ef9a0c8/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:43,735 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:23:43,738 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:23:43,738 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:23:43,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:23:43,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:23:43,749 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:23:43,749 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:43,766 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73c2535-fdb1-4676-bc14-18d90ef9a0c8/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:43,803 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:23:43,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:23:43,805 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:23:43,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:23:43,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:23:43,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:23:43,809 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:23:43,809 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:23:43,830 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:23:43,839 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-11 00:23:43,839 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73c2535-fdb1-4676-bc14-18d90ef9a0c8/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:43,852 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:23:43,852 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:23:43,852 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:23:43,853 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~y~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:43,888 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:23:43,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:43,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:23:43,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:43,972 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-11 00:23:43,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:43,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:43,989 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-11 00:23:43,990 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2021-10-11 00:23:44,023 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states.. Second operand 2 states. Result 15 states and 18 transitions. Complement of second has 5 states. [2021-10-11 00:23:44,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-11 00:23:44,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-11 00:23:44,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-10-11 00:23:44,027 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2021-10-11 00:23:44,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:23:44,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2021-10-11 00:23:44,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:23:44,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-11 00:23:44,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:23:44,029 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2021-10-11 00:23:44,032 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:23:44,034 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2021-10-11 00:23:44,035 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-11 00:23:44,035 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-11 00:23:44,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-11 00:23:44,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:23:44,036 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:23:44,037 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:23:44,037 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:23:44,037 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-11 00:23:44,037 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:23:44,037 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:23:44,037 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-11 00:23:44,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 11.10 12:23:44 BoogieIcfgContainer [2021-10-11 00:23:44,042 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-11 00:23:44,043 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:23:44,043 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:23:44,043 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:23:44,044 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:36" (3/4) ... [2021-10-11 00:23:44,047 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:23:44,047 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:23:44,049 INFO L168 Benchmark]: Toolchain (without parser) took 7599.67 ms. Allocated memory was 90.2 MB in the beginning and 113.2 MB in the end (delta: 23.1 MB). Free memory was 54.3 MB in the beginning and 64.0 MB in the end (delta: -9.7 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:44,049 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 90.2 MB. Free memory is still 70.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:23:44,050 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.50 ms. Allocated memory was 90.2 MB in the beginning and 113.2 MB in the end (delta: 23.1 MB). Free memory was 54.1 MB in the beginning and 90.6 MB in the end (delta: -36.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:44,051 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.48 ms. Allocated memory is still 113.2 MB. Free memory was 90.6 MB in the beginning and 89.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:23:44,052 INFO L168 Benchmark]: Boogie Preprocessor took 15.95 ms. Allocated memory is still 113.2 MB. Free memory was 89.5 MB in the beginning and 88.6 MB in the end (delta: 995.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:44,053 INFO L168 Benchmark]: RCFGBuilder took 231.96 ms. Allocated memory is still 113.2 MB. Free memory was 88.6 MB in the beginning and 80.2 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:44,053 INFO L168 Benchmark]: BuchiAutomizer took 7048.40 ms. Allocated memory is still 113.2 MB. Free memory was 80.2 MB in the beginning and 64.7 MB in the end (delta: 15.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:44,054 INFO L168 Benchmark]: Witness Printer took 4.32 ms. Allocated memory is still 113.2 MB. Free memory is still 64.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:23:44,058 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 90.2 MB. Free memory is still 70.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 254.50 ms. Allocated memory was 90.2 MB in the beginning and 113.2 MB in the end (delta: 23.1 MB). Free memory was 54.1 MB in the beginning and 90.6 MB in the end (delta: -36.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.48 ms. Allocated memory is still 113.2 MB. Free memory was 90.6 MB in the beginning and 89.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 15.95 ms. Allocated memory is still 113.2 MB. Free memory was 89.5 MB in the beginning and 88.6 MB in the end (delta: 995.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 231.96 ms. Allocated memory is still 113.2 MB. Free memory was 88.6 MB in the beginning and 80.2 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 7048.40 ms. Allocated memory is still 113.2 MB. Free memory was 80.2 MB in the beginning and 64.7 MB in the end (delta: 15.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.32 ms. Allocated memory is still 113.2 MB. Free memory is still 64.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x + -1 * y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 6.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax185 hnf100 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq185 hnf88 smp100 dnf100 smp100 tf108 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 5.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...