./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.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_9d9840fb-1d43-447e-bed3-32cb74666c5a/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d9840fb-1d43-447e-bed3-32cb74666c5a/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_9d9840fb-1d43-447e-bed3-32cb74666c5a/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d9840fb-1d43-447e-bed3-32cb74666c5a/bin/uautomizer-Z5i5R5N3CC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d9840fb-1d43-447e-bed3-32cb74666c5a/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_9d9840fb-1d43-447e-bed3-32cb74666c5a/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 ebb74e337af9534aacfcb2a7a413bdbed21e04b2 ................................................................................................................................................................................................................................................................................................................................................................................................................. 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 00:32:04,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:32:04,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:32:04,826 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:32:04,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:32:04,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:32:04,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:32:04,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:32:04,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:32:04,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:32:04,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:32:04,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:32:04,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:32:04,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:32:04,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:32:04,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:32:04,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:32:04,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:32:04,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:32:04,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:32:04,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:32:04,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:32:04,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:32:04,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:32:04,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:32:04,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:32:04,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:32:04,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:32:04,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:32:04,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:32:04,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:32:04,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:32:04,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:32:04,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:32:04,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:32:04,903 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:32:04,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:32:04,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:32:04,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:32:04,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:32:04,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:32:04,908 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d9840fb-1d43-447e-bed3-32cb74666c5a/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-11 00:32:04,946 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:32:04,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:32:04,948 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:32:04,948 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:32:04,949 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:32:04,949 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-11 00:32:04,949 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-11 00:32:04,949 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-11 00:32:04,950 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-11 00:32:04,950 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-11 00:32:04,950 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-11 00:32:04,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:32:04,951 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:32:04,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:32:04,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:32:04,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-11 00:32:04,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-11 00:32:04,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-11 00:32:04,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:32:04,952 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-11 00:32:04,952 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:32:04,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-11 00:32:04,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:32:04,953 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:32:04,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:32:04,954 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:32:04,954 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:32:04,955 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-11 00:32:04,955 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_9d9840fb-1d43-447e-bed3-32cb74666c5a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d9840fb-1d43-447e-bed3-32cb74666c5a/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebb74e337af9534aacfcb2a7a413bdbed21e04b2 [2021-10-11 00:32:05,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:32:05,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:32:05,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:32:05,240 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:32:05,241 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:32:05,242 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d9840fb-1d43-447e-bed3-32cb74666c5a/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c [2021-10-11 00:32:05,317 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d9840fb-1d43-447e-bed3-32cb74666c5a/bin/uautomizer-Z5i5R5N3CC/data/56787e8a0/daf75fd40bbf477ca9947e1e209c113b/FLAG566ceba4e [2021-10-11 00:32:05,803 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:32:05,805 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d9840fb-1d43-447e-bed3-32cb74666c5a/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c [2021-10-11 00:32:05,814 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d9840fb-1d43-447e-bed3-32cb74666c5a/bin/uautomizer-Z5i5R5N3CC/data/56787e8a0/daf75fd40bbf477ca9947e1e209c113b/FLAG566ceba4e [2021-10-11 00:32:06,181 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d9840fb-1d43-447e-bed3-32cb74666c5a/bin/uautomizer-Z5i5R5N3CC/data/56787e8a0/daf75fd40bbf477ca9947e1e209c113b [2021-10-11 00:32:06,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:32:06,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:32:06,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:32:06,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:32:06,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:32:06,195 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:32:06" (1/1) ... [2021-10-11 00:32:06,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57e9d18a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:06, skipping insertion in model container [2021-10-11 00:32:06,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:32:06" (1/1) ... [2021-10-11 00:32:06,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:32:06,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:32:06,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:32:06,351 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:32:06,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:32:06,381 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:32:06,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:06 WrapperNode [2021-10-11 00:32:06,383 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:32:06,384 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:32:06,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:32:06,385 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:32:06,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:06" (1/1) ... [2021-10-11 00:32:06,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:06" (1/1) ... [2021-10-11 00:32:06,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:32:06,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:32:06,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:32:06,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:32:06,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:06" (1/1) ... [2021-10-11 00:32:06,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:06" (1/1) ... [2021-10-11 00:32:06,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:06" (1/1) ... [2021-10-11 00:32:06,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:06" (1/1) ... [2021-10-11 00:32:06,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:06" (1/1) ... [2021-10-11 00:32:06,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:06" (1/1) ... [2021-10-11 00:32:06,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:06" (1/1) ... [2021-10-11 00:32:06,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:32:06,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:32:06,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:32:06,453 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:32:06,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:06" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d9840fb-1d43-447e-bed3-32cb74666c5a/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 00:32:06,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:32:06,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:32:06,673 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:32:06,673 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 00:32:06,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:32:06 BoogieIcfgContainer [2021-10-11 00:32:06,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:32:06,676 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-11 00:32:06,677 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-11 00:32:06,680 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-11 00:32:06,681 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:32:06,682 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 11.10 12:32:06" (1/3) ... [2021-10-11 00:32:06,683 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a0c914f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:32:06, skipping insertion in model container [2021-10-11 00:32:06,684 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:32:06,684 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:06" (2/3) ... [2021-10-11 00:32:06,684 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a0c914f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:32:06, skipping insertion in model container [2021-10-11 00:32:06,685 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:32:06,685 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:32:06" (3/3) ... [2021-10-11 00:32:06,686 INFO L389 chiAutomizerObserver]: Analyzing ICFG LeikeHeizmann-TACAS2014-Ex1.c [2021-10-11 00:32:06,740 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-11 00:32:06,740 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-11 00:32:06,740 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-11 00:32:06,740 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:32:06,741 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:32:06,741 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-11 00:32:06,741 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:32:06,741 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-11 00:32:06,754 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2021-10-11 00:32:06,768 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-11 00:32:06,768 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:32:06,768 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:32:06,774 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-11 00:32:06,774 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:32:06,775 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-11 00:32:06,775 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2021-10-11 00:32:06,776 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-11 00:32:06,776 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:32:06,776 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:32:06,777 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-11 00:32:06,777 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:32:06,783 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~q~0, main_~y~0;havoc main_~q~0;havoc main_~y~0;main_~q~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 5#L18-2true [2021-10-11 00:32:06,783 INFO L796 eck$LassoCheckResult]: Loop: 5#L18-2true assume !!(main_~q~0 > 0); 7#L18true assume main_~y~0 > 0;main_~q~0 := main_~q~0 - main_~y~0 - 1; 5#L18-2true [2021-10-11 00:32:06,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:06,790 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-11 00:32:06,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:06,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771671748] [2021-10-11 00:32:06,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:32:06,869 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:32:06,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:32:06,873 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:32:06,893 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:32:06,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:06,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2021-10-11 00:32:06,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:06,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295797545] [2021-10-11 00:32:06,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:06,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:32:06,907 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:32:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:32:06,914 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:32:06,915 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:32:06,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:06,920 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2021-10-11 00:32:06,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:06,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162094811] [2021-10-11 00:32:06,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:06,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:32:06,933 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:32:06,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:32:06,945 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:32:06,950 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:32:07,031 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:32:07,031 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:32:07,032 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:32:07,032 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:32:07,032 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:32:07,032 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:32:07,032 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:32:07,033 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:32:07,033 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeikeHeizmann-TACAS2014-Ex1.c_Iteration1_Loop [2021-10-11 00:32:07,033 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:32:07,033 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:32:07,053 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 00:32:07,062 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 00:32:07,068 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 00:32:07,150 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:32:07,151 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d9840fb-1d43-447e-bed3-32cb74666c5a/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 00:32:07,184 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:32:07,184 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 00:32:07,211 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:32:07,212 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_9d9840fb-1d43-447e-bed3-32cb74666c5a/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 00:32:07,324 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:32:07,324 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:32:07,345 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:32:07,346 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_9d9840fb-1d43-447e-bed3-32cb74666c5a/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 00:32:07,374 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:32:07,374 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d9840fb-1d43-447e-bed3-32cb74666c5a/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 00:32:07,421 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:32:07,421 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:32:07,497 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:32:07,499 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:32:07,500 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:32:07,500 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:32:07,500 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:32:07,500 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:32:07,500 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:32:07,500 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:32:07,500 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:32:07,500 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeikeHeizmann-TACAS2014-Ex1.c_Iteration1_Loop [2021-10-11 00:32:07,501 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:32:07,501 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:32:07,503 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 00:32:07,508 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 00:32:07,512 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 00:32:07,571 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:32:07,575 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d9840fb-1d43-447e-bed3-32cb74666c5a/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) [2021-10-11 00:32:07,584 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 00:32:07,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:32:07,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:32:07,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:32:07,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:32:07,593 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:32:07,593 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:32:07,605 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_9d9840fb-1d43-447e-bed3-32cb74666c5a/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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:32:07,647 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 00:32:07,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:32:07,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:32:07,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:32:07,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:32:07,657 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:32:07,657 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:32:07,679 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_9d9840fb-1d43-447e-bed3-32cb74666c5a/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) [2021-10-11 00:32:07,723 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 00:32:07,725 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:32:07,725 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:32:07,726 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:32:07,726 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:32:07,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:32:07,729 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:32:07,729 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:32:07,743 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:32:07,753 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-11 00:32:07,753 INFO L444 ModelExtractionUtils]: 2 out of 4 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_9d9840fb-1d43-447e-bed3-32cb74666c5a/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 00:32:07,787 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:32:07,787 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:32:07,788 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:32:07,788 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~q~0) = 1*ULTIMATE.start_main_~q~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:32:07,825 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:32:07,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:07,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:32:07,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:32:07,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:32:07,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:32:07,888 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 00:32:07,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:32:07,904 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 00:32:07,923 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 00:32:07,924 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2021-10-11 00:32:08,031 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 00:32:08,061 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 00:32:08,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-11 00:32:08,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2021-10-11 00:32:08,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-11 00:32:08,066 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:32:08,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-11 00:32:08,067 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:32:08,067 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-11 00:32:08,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:32:08,069 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 22 transitions. [2021-10-11 00:32:08,073 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:32:08,075 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 0 states and 0 transitions. [2021-10-11 00:32:08,077 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-11 00:32:08,077 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-11 00:32:08,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-11 00:32:08,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:32:08,078 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:32:08,078 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:32:08,078 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:32:08,078 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-11 00:32:08,078 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:32:08,078 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:32:08,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-11 00:32:08,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 11.10 12:32:08 BoogieIcfgContainer [2021-10-11 00:32:08,092 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-11 00:32:08,096 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:32:08,096 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:32:08,096 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:32:08,097 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:32:06" (3/4) ... [2021-10-11 00:32:08,101 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:32:08,101 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:32:08,103 INFO L168 Benchmark]: Toolchain (without parser) took 1916.71 ms. Allocated memory is still 142.6 MB. Free memory was 113.0 MB in the beginning and 116.6 MB in the end (delta: -3.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:32:08,104 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 83.9 MB. Free memory was 38.6 MB in the beginning and 38.6 MB in the end (delta: 49.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:32:08,105 INFO L168 Benchmark]: CACSL2BoogieTranslator took 196.66 ms. Allocated memory is still 142.6 MB. Free memory was 112.5 MB in the beginning and 120.8 MB in the end (delta: -8.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:08,106 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.70 ms. Allocated memory is still 142.6 MB. Free memory was 120.8 MB in the beginning and 119.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:08,107 INFO L168 Benchmark]: Boogie Preprocessor took 19.37 ms. Allocated memory is still 142.6 MB. Free memory was 119.6 MB in the beginning and 118.8 MB in the end (delta: 846.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:32:08,107 INFO L168 Benchmark]: RCFGBuilder took 222.28 ms. Allocated memory is still 142.6 MB. Free memory was 118.8 MB in the beginning and 110.4 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:08,108 INFO L168 Benchmark]: BuchiAutomizer took 1416.28 ms. Allocated memory is still 142.6 MB. Free memory was 110.4 MB in the beginning and 117.4 MB in the end (delta: -7.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:32:08,109 INFO L168 Benchmark]: Witness Printer took 5.57 ms. Allocated memory is still 142.6 MB. Free memory was 117.4 MB in the beginning and 116.6 MB in the end (delta: 824.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:32:08,114 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 83.9 MB. Free memory was 38.6 MB in the beginning and 38.6 MB in the end (delta: 49.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 196.66 ms. Allocated memory is still 142.6 MB. Free memory was 112.5 MB in the beginning and 120.8 MB in the end (delta: -8.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.70 ms. Allocated memory is still 142.6 MB. Free memory was 120.8 MB in the beginning and 119.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.37 ms. Allocated memory is still 142.6 MB. Free memory was 119.6 MB in the beginning and 118.8 MB in the end (delta: 846.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 222.28 ms. Allocated memory is still 142.6 MB. Free memory was 118.8 MB in the beginning and 110.4 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1416.28 ms. Allocated memory is still 142.6 MB. Free memory was 110.4 MB in the beginning and 117.4 MB in the end (delta: -7.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.57 ms. Allocated memory is still 142.6 MB. Free memory was 117.4 MB in the beginning and 116.6 MB in the end (delta: 824.6 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 q and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s 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: inital14 mio100 ax185 hnf100 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf95 smp100 dnf100 smp100 tf110 neg100 sie118 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 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...