./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/easy1.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_fa212410-39dd-44e1-8a2a-238f20f6a130/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa212410-39dd-44e1-8a2a-238f20f6a130/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_fa212410-39dd-44e1-8a2a-238f20f6a130/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa212410-39dd-44e1-8a2a-238f20f6a130/bin/uautomizer-Z5i5R5N3CC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/easy1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa212410-39dd-44e1-8a2a-238f20f6a130/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_fa212410-39dd-44e1-8a2a-238f20f6a130/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 444b5d8373157a5e55f28060b712b2ca462d0fa9 ............................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 00:28:54,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:28:54,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:28:54,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:28:54,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:28:54,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:28:54,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:28:54,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:28:54,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:28:54,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:28:54,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:28:54,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:28:54,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:28:54,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:28:54,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:28:54,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:28:54,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:28:54,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:28:54,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:28:54,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:28:54,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:28:54,444 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:28:54,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:28:54,447 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:28:54,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:28:54,451 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:28:54,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:28:54,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:28:54,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:28:54,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:28:54,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:28:54,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:28:54,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:28:54,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:28:54,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:28:54,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:28:54,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:28:54,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:28:54,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:28:54,465 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:28:54,466 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:28:54,467 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa212410-39dd-44e1-8a2a-238f20f6a130/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-11 00:28:54,491 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:28:54,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:28:54,492 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:28:54,493 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:28:54,493 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:28:54,493 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-11 00:28:54,494 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-11 00:28:54,494 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-11 00:28:54,494 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-11 00:28:54,495 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-11 00:28:54,495 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-11 00:28:54,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:28:54,495 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:28:54,496 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:28:54,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:28:54,496 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-11 00:28:54,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-11 00:28:54,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-11 00:28:54,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:28:54,497 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-11 00:28:54,498 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:28:54,498 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-11 00:28:54,498 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:28:54,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:28:54,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:28:54,499 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:28:54,499 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:28:54,501 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-11 00:28:54,501 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_fa212410-39dd-44e1-8a2a-238f20f6a130/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa212410-39dd-44e1-8a2a-238f20f6a130/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 444b5d8373157a5e55f28060b712b2ca462d0fa9 [2021-10-11 00:28:54,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:28:54,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:28:54,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:28:54,817 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:28:54,818 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:28:54,820 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa212410-39dd-44e1-8a2a-238f20f6a130/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-crafted/easy1.c [2021-10-11 00:28:54,899 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa212410-39dd-44e1-8a2a-238f20f6a130/bin/uautomizer-Z5i5R5N3CC/data/678cec0a1/a65e750dd5284307836a8fb6b4c53779/FLAG8eb1e76bd [2021-10-11 00:28:55,355 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:28:55,355 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa212410-39dd-44e1-8a2a-238f20f6a130/sv-benchmarks/c/termination-crafted/easy1.c [2021-10-11 00:28:55,361 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa212410-39dd-44e1-8a2a-238f20f6a130/bin/uautomizer-Z5i5R5N3CC/data/678cec0a1/a65e750dd5284307836a8fb6b4c53779/FLAG8eb1e76bd [2021-10-11 00:28:55,751 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa212410-39dd-44e1-8a2a-238f20f6a130/bin/uautomizer-Z5i5R5N3CC/data/678cec0a1/a65e750dd5284307836a8fb6b4c53779 [2021-10-11 00:28:55,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:28:55,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:28:55,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:28:55,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:28:55,766 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:28:55,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:28:55" (1/1) ... [2021-10-11 00:28:55,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72105e93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:55, skipping insertion in model container [2021-10-11 00:28:55,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:28:55" (1/1) ... [2021-10-11 00:28:55,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:28:55,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:28:55,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:28:55,984 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:28:56,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:28:56,036 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:28:56,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:56 WrapperNode [2021-10-11 00:28:56,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:28:56,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:28:56,041 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:28:56,041 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:28:56,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:56" (1/1) ... [2021-10-11 00:28:56,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:56" (1/1) ... [2021-10-11 00:28:56,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:28:56,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:28:56,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:28:56,074 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:28:56,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:56" (1/1) ... [2021-10-11 00:28:56,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:56" (1/1) ... [2021-10-11 00:28:56,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:56" (1/1) ... [2021-10-11 00:28:56,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:56" (1/1) ... [2021-10-11 00:28:56,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:56" (1/1) ... [2021-10-11 00:28:56,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:56" (1/1) ... [2021-10-11 00:28:56,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:56" (1/1) ... [2021-10-11 00:28:56,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:28:56,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:28:56,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:28:56,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:28:56,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:56" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa212410-39dd-44e1-8a2a-238f20f6a130/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 00:28:56,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:28:56,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:28:56,342 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:28:56,343 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 00:28:56,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:56 BoogieIcfgContainer [2021-10-11 00:28:56,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:28:56,347 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-11 00:28:56,348 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-11 00:28:56,351 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-11 00:28:56,352 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:28:56,353 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 11.10 12:28:55" (1/3) ... [2021-10-11 00:28:56,355 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1678224d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:28:56, skipping insertion in model container [2021-10-11 00:28:56,355 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:28:56,356 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:56" (2/3) ... [2021-10-11 00:28:56,356 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1678224d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:28:56, skipping insertion in model container [2021-10-11 00:28:56,356 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:28:56,356 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:56" (3/3) ... [2021-10-11 00:28:56,358 INFO L389 chiAutomizerObserver]: Analyzing ICFG easy1.c [2021-10-11 00:28:56,430 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-11 00:28:56,430 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-11 00:28:56,430 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-11 00:28:56,430 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:28:56,431 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:28:56,431 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-11 00:28:56,431 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:28:56,431 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-11 00:28:56,443 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2021-10-11 00:28:56,462 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-11 00:28:56,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:28:56,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:28:56,468 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-11 00:28:56,468 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:28:56,468 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-11 00:28:56,469 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2021-10-11 00:28:56,470 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-11 00:28:56,470 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:28:56,470 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:28:56,470 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-11 00:28:56,470 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:28:56,477 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := 0;main_~y~0 := 100;main_~z~0 := main_#t~nondet0;havoc main_#t~nondet0; 8#L21-2true [2021-10-11 00:28:56,478 INFO L796 eck$LassoCheckResult]: Loop: 8#L21-2true assume !!(main_~x~0 < 40); 3#L21true assume 0 == main_~z~0;main_~x~0 := 1 + main_~x~0; 8#L21-2true [2021-10-11 00:28:56,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:56,484 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-11 00:28:56,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:56,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351465311] [2021-10-11 00:28:56,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:56,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:28:56,557 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:28:56,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:28:56,562 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:28:56,573 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:28:56,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:56,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2021-10-11 00:28:56,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:56,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187236179] [2021-10-11 00:28:56,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:28:56,586 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:28:56,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:28:56,590 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:28:56,591 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:28:56,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:56,593 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2021-10-11 00:28:56,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:56,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476720717] [2021-10-11 00:28:56,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:56,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:28:56,602 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:28:56,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:28:56,607 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:28:56,609 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:28:56,675 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:28:56,675 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:28:56,675 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:28:56,676 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:28:56,676 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:28:56,676 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:28:56,676 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:28:56,676 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:28:56,677 INFO L133 ssoRankerPreferences]: Filename of dumped script: easy1.c_Iteration1_Loop [2021-10-11 00:28:56,677 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:28:56,677 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:28:56,695 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 00:28:56,704 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 00:28:56,710 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 00:28:56,716 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 00:28:56,817 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:28:56,818 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa212410-39dd-44e1-8a2a-238f20f6a130/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 00:28:56,832 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:28:56,832 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 00:28:56,862 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:28:56,862 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_fa212410-39dd-44e1-8a2a-238f20f6a130/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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:28:56,903 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:28:56,903 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:28:56,918 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:28:56,918 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_fa212410-39dd-44e1-8a2a-238f20f6a130/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) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:28:56,950 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:28:56,950 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:28:56,968 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:28:56,968 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=0} Honda state: {ULTIMATE.start_main_~z~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa212410-39dd-44e1-8a2a-238f20f6a130/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 00:28:56,991 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:28:56,991 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa212410-39dd-44e1-8a2a-238f20f6a130/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 00:28:57,028 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:28:57,028 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:28:57,061 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:28:57,063 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:28:57,063 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:28:57,064 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:28:57,064 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:28:57,064 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:28:57,064 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:28:57,064 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:28:57,064 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:28:57,064 INFO L133 ssoRankerPreferences]: Filename of dumped script: easy1.c_Iteration1_Loop [2021-10-11 00:28:57,065 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:28:57,065 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:28:57,067 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 00:28:57,083 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 00:28:57,088 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 00:28:57,124 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 00:28:57,235 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:28:57,239 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa212410-39dd-44e1-8a2a-238f20f6a130/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 00:28:57,248 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 00:28:57,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:28:57,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:28:57,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:28:57,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:28:57,257 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:28:57,257 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 00:28:57,268 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_fa212410-39dd-44e1-8a2a-238f20f6a130/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 00:28:57,304 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 00:28:57,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:28:57,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:28:57,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:28:57,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:28:57,313 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:28:57,313 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:28:57,335 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_fa212410-39dd-44e1-8a2a-238f20f6a130/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 00:28:57,379 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 00:28:57,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:28:57,381 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:28:57,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:28:57,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:28:57,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:28:57,384 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:28:57,384 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:28:57,395 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_fa212410-39dd-44e1-8a2a-238f20f6a130/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:28:57,417 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 00:28:57,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:28:57,419 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:28:57,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:28:57,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:28:57,419 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:28:57,421 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:28:57,421 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:28:57,447 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:28:57,451 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-11 00:28:57,452 INFO L444 ModelExtractionUtils]: 0 out of 3 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_fa212410-39dd-44e1-8a2a-238f20f6a130/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:28:57,460 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:28:57,460 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:28:57,460 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:28:57,461 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 79 Supporting invariants [] Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:28:57,493 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:28:57,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:57,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:28:57,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:28:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:57,564 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:28:57,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:28:57,595 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 00:28:57,612 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-11 00:28:57,614 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2021-10-11 00:28:57,666 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 17 states and 22 transitions. Complement of second has 7 states. [2021-10-11 00:28:57,667 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 [2021-10-11 00:28:57,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-11 00:28:57,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2021-10-11 00:28:57,670 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-11 00:28:57,671 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:28:57,671 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-11 00:28:57,671 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:28:57,671 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-11 00:28:57,672 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:28:57,673 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 22 transitions. [2021-10-11 00:28:57,677 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:28:57,679 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 0 states and 0 transitions. [2021-10-11 00:28:57,680 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-11 00:28:57,681 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-11 00:28:57,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-11 00:28:57,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:28:57,681 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:28:57,682 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:28:57,682 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:28:57,682 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-11 00:28:57,682 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:28:57,682 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:28:57,682 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-11 00:28:57,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 11.10 12:28:57 BoogieIcfgContainer [2021-10-11 00:28:57,688 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-11 00:28:57,689 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:28:57,689 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:28:57,690 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:28:57,690 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:56" (3/4) ... [2021-10-11 00:28:57,693 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:28:57,693 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:28:57,698 INFO L168 Benchmark]: Toolchain (without parser) took 1938.80 ms. Allocated memory is still 115.3 MB. Free memory was 77.9 MB in the beginning and 64.1 MB in the end (delta: 13.8 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:57,699 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 115.3 MB. Free memory was 94.6 MB in the beginning and 94.6 MB in the end (delta: 57.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:28:57,700 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.93 ms. Allocated memory is still 115.3 MB. Free memory was 77.7 MB in the beginning and 92.0 MB in the end (delta: -14.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:57,701 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.24 ms. Allocated memory is still 115.3 MB. Free memory was 92.0 MB in the beginning and 90.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:28:57,702 INFO L168 Benchmark]: Boogie Preprocessor took 21.92 ms. Allocated memory is still 115.3 MB. Free memory was 90.9 MB in the beginning and 90.0 MB in the end (delta: 947.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:57,703 INFO L168 Benchmark]: RCFGBuilder took 250.27 ms. Allocated memory is still 115.3 MB. Free memory was 90.0 MB in the beginning and 81.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:57,705 INFO L168 Benchmark]: BuchiAutomizer took 1340.79 ms. Allocated memory is still 115.3 MB. Free memory was 81.6 MB in the beginning and 64.6 MB in the end (delta: 17.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:57,710 INFO L168 Benchmark]: Witness Printer took 4.93 ms. Allocated memory is still 115.3 MB. Free memory was 64.6 MB in the beginning and 64.1 MB in the end (delta: 532.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:28:57,716 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 115.3 MB. Free memory was 94.6 MB in the beginning and 94.6 MB in the end (delta: 57.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 276.93 ms. Allocated memory is still 115.3 MB. Free memory was 77.7 MB in the beginning and 92.0 MB in the end (delta: -14.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.24 ms. Allocated memory is still 115.3 MB. Free memory was 92.0 MB in the beginning and 90.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.92 ms. Allocated memory is still 115.3 MB. Free memory was 90.9 MB in the beginning and 90.0 MB in the end (delta: 947.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 250.27 ms. Allocated memory is still 115.3 MB. Free memory was 90.0 MB in the beginning and 81.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1340.79 ms. Allocated memory is still 115.3 MB. Free memory was 81.6 MB in the beginning and 64.6 MB in the end (delta: 17.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.93 ms. Allocated memory is still 115.3 MB. Free memory was 64.6 MB in the beginning and 64.1 MB in the end (delta: 532.5 kB). 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 -2 * x + 79 and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. 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, 5 SDslu, 6 SDs, 0 SdLazy, 7 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax192 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...