./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/cggmp2005_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_e2fbdce0-a2ec-4127-9186-13dac60e09bf/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fbdce0-a2ec-4127-9186-13dac60e09bf/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_e2fbdce0-a2ec-4127-9186-13dac60e09bf/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fbdce0-a2ec-4127-9186-13dac60e09bf/bin/uautomizer-Z5i5R5N3CC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/cggmp2005_variant.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fbdce0-a2ec-4127-9186-13dac60e09bf/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fbdce0-a2ec-4127-9186-13dac60e09bf/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 32bit --witnessprinter.graph.data.programhash 53bb793d04b8582ac13d1842856082c93ca272cf .................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:22:44,875 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:22:44,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:22:44,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:22:44,910 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:22:44,911 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:22:44,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:22:44,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:22:44,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:22:44,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:22:44,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:22:44,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:22:44,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:22:44,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:22:44,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:22:44,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:22:44,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:22:44,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:22:44,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:22:44,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:22:44,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:22:44,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:22:44,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:22:44,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:22:44,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:22:44,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:22:44,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:22:44,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:22:44,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:22:44,975 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:22:44,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:22:44,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:22:44,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:22:44,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:22:44,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:22:44,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:22:44,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:22:44,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:22:44,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:22:44,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:22:44,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:22:44,988 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fbdce0-a2ec-4127-9186-13dac60e09bf/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-11 00:22:45,013 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:22:45,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:22:45,015 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:22:45,015 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:22:45,015 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:22:45,016 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-11 00:22:45,016 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-11 00:22:45,016 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-11 00:22:45,016 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-11 00:22:45,016 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-11 00:22:45,016 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-11 00:22:45,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:22:45,017 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:22:45,017 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:22:45,017 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:22:45,017 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:22:45,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:22:45,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-11 00:22:45,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-11 00:22:45,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-11 00:22:45,018 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:22:45,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:22:45,019 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-11 00:22:45,019 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:22:45,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-11 00:22:45,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:22:45,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:22:45,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:22:45,020 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:22:45,020 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:22:45,021 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-11 00:22:45,021 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_e2fbdce0-a2ec-4127-9186-13dac60e09bf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fbdce0-a2ec-4127-9186-13dac60e09bf/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53bb793d04b8582ac13d1842856082c93ca272cf [2021-10-11 00:22:45,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:22:45,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:22:45,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:22:45,350 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:22:45,351 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:22:45,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fbdce0-a2ec-4127-9186-13dac60e09bf/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/loop-lit/cggmp2005_variant.i [2021-10-11 00:22:45,416 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fbdce0-a2ec-4127-9186-13dac60e09bf/bin/uautomizer-Z5i5R5N3CC/data/25b7403b7/0325b945ba57424d966c2cb9c02af181/FLAG467b3712c [2021-10-11 00:22:45,937 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:22:45,938 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fbdce0-a2ec-4127-9186-13dac60e09bf/sv-benchmarks/c/loop-lit/cggmp2005_variant.i [2021-10-11 00:22:45,948 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fbdce0-a2ec-4127-9186-13dac60e09bf/bin/uautomizer-Z5i5R5N3CC/data/25b7403b7/0325b945ba57424d966c2cb9c02af181/FLAG467b3712c [2021-10-11 00:22:46,315 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fbdce0-a2ec-4127-9186-13dac60e09bf/bin/uautomizer-Z5i5R5N3CC/data/25b7403b7/0325b945ba57424d966c2cb9c02af181 [2021-10-11 00:22:46,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:22:46,320 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:22:46,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:22:46,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:22:46,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:22:46,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:22:46" (1/1) ... [2021-10-11 00:22:46,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f69fd9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:46, skipping insertion in model container [2021-10-11 00:22:46,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:22:46" (1/1) ... [2021-10-11 00:22:46,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:22:46,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:22:46,533 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fbdce0-a2ec-4127-9186-13dac60e09bf/sv-benchmarks/c/loop-lit/cggmp2005_variant.i[895,908] [2021-10-11 00:22:46,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:22:46,550 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:22:46,564 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fbdce0-a2ec-4127-9186-13dac60e09bf/sv-benchmarks/c/loop-lit/cggmp2005_variant.i[895,908] [2021-10-11 00:22:46,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:22:46,584 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:22:46,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:46 WrapperNode [2021-10-11 00:22:46,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:22:46,587 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:22:46,587 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:22:46,587 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:22:46,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:46" (1/1) ... [2021-10-11 00:22:46,607 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:46" (1/1) ... [2021-10-11 00:22:46,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:22:46,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:22:46,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:22:46,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:22:46,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:46" (1/1) ... [2021-10-11 00:22:46,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:46" (1/1) ... [2021-10-11 00:22:46,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:46" (1/1) ... [2021-10-11 00:22:46,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:46" (1/1) ... [2021-10-11 00:22:46,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:46" (1/1) ... [2021-10-11 00:22:46,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:46" (1/1) ... [2021-10-11 00:22:46,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:46" (1/1) ... [2021-10-11 00:22:46,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:22:46,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:22:46,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:22:46,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:22:46,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:46" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fbdce0-a2ec-4127-9186-13dac60e09bf/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 00:22:46,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:22:46,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:22:46,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:22:46,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:22:47,037 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:22:47,037 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 00:22:47,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:22:47 BoogieIcfgContainer [2021-10-11 00:22:47,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:22:47,040 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-11 00:22:47,040 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-11 00:22:47,045 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-11 00:22:47,046 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:22:47,046 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 11.10 12:22:46" (1/3) ... [2021-10-11 00:22:47,048 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@23dd7650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:22:47, skipping insertion in model container [2021-10-11 00:22:47,048 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:22:47,048 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:46" (2/3) ... [2021-10-11 00:22:47,049 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@23dd7650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:22:47, skipping insertion in model container [2021-10-11 00:22:47,049 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:22:47,051 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:22:47" (3/3) ... [2021-10-11 00:22:47,052 INFO L389 chiAutomizerObserver]: Analyzing ICFG cggmp2005_variant.i [2021-10-11 00:22:47,138 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-11 00:22:47,139 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-11 00:22:47,139 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-11 00:22:47,139 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:22:47,139 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:22:47,139 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-11 00:22:47,139 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:22:47,139 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-11 00:22:47,152 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2021-10-11 00:22:47,169 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-11 00:22:47,170 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:22:47,170 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:22:47,175 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-11 00:22:47,175 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-11 00:22:47,175 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-11 00:22:47,176 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2021-10-11 00:22:47,177 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-11 00:22:47,177 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:22:47,177 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:22:47,177 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-11 00:22:47,177 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-11 00:22:47,196 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 3#L-1true havoc main_#res;havoc main_#t~nondet3, main_~lo~0, main_~mid~0, main_~hi~0;havoc main_~lo~0;havoc main_~mid~0;havoc main_~hi~0;main_~lo~0 := 0;main_~mid~0 := main_#t~nondet3;havoc main_#t~nondet3; 7#L28true assume !!(main_~mid~0 > 0 && main_~mid~0 <= 1000000);main_~hi~0 := 2 * main_~mid~0; 8#L30-2true [2021-10-11 00:22:47,197 INFO L796 eck$LassoCheckResult]: Loop: 8#L30-2true assume !!(main_~mid~0 > 0);main_~lo~0 := 1 + main_~lo~0;main_~hi~0 := main_~hi~0 - 1;main_~mid~0 := main_~mid~0 - 1; 8#L30-2true [2021-10-11 00:22:47,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:47,215 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-10-11 00:22:47,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:47,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090242811] [2021-10-11 00:22:47,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:22:47,394 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:22:47,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:22:47,428 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:22:47,455 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:22:47,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:47,460 INFO L82 PathProgramCache]: Analyzing trace with hash 47, now seen corresponding path program 1 times [2021-10-11 00:22:47,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:47,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003804115] [2021-10-11 00:22:47,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:22:47,476 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:22:47,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:22:47,487 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:22:47,492 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:22:47,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:47,499 INFO L82 PathProgramCache]: Analyzing trace with hash 925676, now seen corresponding path program 1 times [2021-10-11 00:22:47,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:47,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193538772] [2021-10-11 00:22:47,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:47,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:22:47,522 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:22:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:22:47,555 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:22:47,565 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:22:47,680 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:22:47,685 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:22:47,686 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:22:47,686 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:22:47,686 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:22:47,686 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:22:47,686 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:22:47,686 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:22:47,687 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005_variant.i_Iteration1_Loop [2021-10-11 00:22:47,687 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:22:47,687 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:22:47,713 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 00:22:47,733 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 00:22:47,746 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 00:22:47,876 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:22:47,877 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fbdce0-a2ec-4127-9186-13dac60e09bf/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 00:22:47,887 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:22:47,888 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 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fbdce0-a2ec-4127-9186-13dac60e09bf/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 00:22:47,935 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:22:47,936 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:22:47,970 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:22:47,970 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~lo~0=0} Honda state: {ULTIMATE.start_main_~lo~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~lo~0=1}, {ULTIMATE.start_main_~lo~0=7}, {ULTIMATE.start_main_~lo~0=-7}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fbdce0-a2ec-4127-9186-13dac60e09bf/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 00:22:47,998 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:22:47,998 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_e2fbdce0-a2ec-4127-9186-13dac60e09bf/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 00:22:48,045 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:22:48,045 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:22:48,075 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:22:48,075 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~hi~0=0} Honda state: {ULTIMATE.start_main_~hi~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~hi~0=-3}, {ULTIMATE.start_main_~hi~0=-1}, {ULTIMATE.start_main_~hi~0=3}] Lambdas: [1, 4, 1] Nus: [0, 1] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fbdce0-a2ec-4127-9186-13dac60e09bf/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 00:22:48,109 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:22:48,116 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fbdce0-a2ec-4127-9186-13dac60e09bf/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 00:22:48,169 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:22:48,169 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:22:48,201 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:22:48,202 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:22:48,203 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:22:48,203 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:22:48,203 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:22:48,203 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:22:48,203 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:22:48,203 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:22:48,203 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:22:48,203 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005_variant.i_Iteration1_Loop [2021-10-11 00:22:48,204 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:22:48,204 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:22:48,205 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 00:22:48,217 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 00:22:48,221 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 00:22:48,306 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:22:48,311 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fbdce0-a2ec-4127-9186-13dac60e09bf/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 00:22:48,317 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 00:22:48,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:22:48,319 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:22:48,319 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:22:48,319 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:22:48,319 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:22:48,321 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:22:48,321 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:22:48,331 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_e2fbdce0-a2ec-4127-9186-13dac60e09bf/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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:22:48,351 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 00:22:48,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:22:48,353 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:22:48,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:22:48,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:22:48,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:22:48,355 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:22:48,355 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:22:48,370 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_e2fbdce0-a2ec-4127-9186-13dac60e09bf/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 00:22:48,393 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 00:22:48,394 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:22:48,395 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:22:48,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:22:48,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:22:48,395 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:22:48,397 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:22:48,397 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:22:48,434 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:22:48,439 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-11 00:22:48,440 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fbdce0-a2ec-4127-9186-13dac60e09bf/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 00:22:48,448 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:22:48,449 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:22:48,449 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:22:48,450 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~mid~0) = 1*ULTIMATE.start_main_~mid~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:22:48,484 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:22:48,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:48,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:22:48,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:22:48,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:22:48,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:22:48,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:22:48,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:22:48,625 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 00:22:48,641 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 00:22:48,643 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 2 states. [2021-10-11 00:22:48,680 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 2 states. Result 29 states and 34 transitions. Complement of second has 5 states. [2021-10-11 00:22:48,681 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 00:22:48,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-11 00:22:48,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2021-10-11 00:22:48,685 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 3 letters. Loop has 1 letters. [2021-10-11 00:22:48,686 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:22:48,686 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 4 letters. Loop has 1 letters. [2021-10-11 00:22:48,687 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:22:48,687 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-11 00:22:48,687 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:22:48,688 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 34 transitions. [2021-10-11 00:22:48,692 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:22:48,694 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2021-10-11 00:22:48,695 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-11 00:22:48,696 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-11 00:22:48,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-11 00:22:48,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:22:48,697 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:22:48,697 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:22:48,697 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:22:48,697 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-11 00:22:48,697 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:22:48,697 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:22:48,697 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-11 00:22:48,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 11.10 12:22:48 BoogieIcfgContainer [2021-10-11 00:22:48,703 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-11 00:22:48,704 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:22:48,704 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:22:48,704 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:22:48,705 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:22:47" (3/4) ... [2021-10-11 00:22:48,708 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:22:48,708 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:22:48,710 INFO L168 Benchmark]: Toolchain (without parser) took 2389.16 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 43.4 MB in the beginning and 65.8 MB in the end (delta: -22.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:22:48,711 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 81.8 MB. Free memory was 59.5 MB in the beginning and 59.4 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:22:48,712 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.47 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 43.2 MB in the beginning and 73.4 MB in the end (delta: -30.2 MB). Peak memory consumption was 8.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:48,713 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.01 ms. Allocated memory is still 98.6 MB. Free memory was 73.4 MB in the beginning and 71.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:48,713 INFO L168 Benchmark]: Boogie Preprocessor took 38.64 ms. Allocated memory is still 98.6 MB. Free memory was 71.9 MB in the beginning and 71.2 MB in the end (delta: 666.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:22:48,714 INFO L168 Benchmark]: RCFGBuilder took 368.51 ms. Allocated memory is still 98.6 MB. Free memory was 70.6 MB in the beginning and 60.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:48,715 INFO L168 Benchmark]: BuchiAutomizer took 1663.10 ms. Allocated memory is still 98.6 MB. Free memory was 60.0 MB in the beginning and 65.8 MB in the end (delta: -5.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:22:48,715 INFO L168 Benchmark]: Witness Printer took 4.38 ms. Allocated memory is still 98.6 MB. Free memory is still 65.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:22:48,719 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 81.8 MB. Free memory was 59.5 MB in the beginning and 59.4 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 264.47 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 43.2 MB in the beginning and 73.4 MB in the end (delta: -30.2 MB). Peak memory consumption was 8.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.01 ms. Allocated memory is still 98.6 MB. Free memory was 73.4 MB in the beginning and 71.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.64 ms. Allocated memory is still 98.6 MB. Free memory was 71.9 MB in the beginning and 71.2 MB in the end (delta: 666.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 368.51 ms. Allocated memory is still 98.6 MB. Free memory was 70.6 MB in the beginning and 60.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1663.10 ms. Allocated memory is still 98.6 MB. Free memory was 60.0 MB in the beginning and 65.8 MB in the end (delta: -5.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.38 ms. Allocated memory is still 98.6 MB. Free memory is still 65.8 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 mid and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. 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: 12 SDtfs, 12 SDslu, 6 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: inital20 mio100 ax100 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 19ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...