./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/c.03.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/c.03.c -s /tmp/vcloud-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer --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 7d32dea9005a55265d6c4ef8382f17d9e27d71b7 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:19:49,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:19:49,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:19:49,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:19:49,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:19:49,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:19:49,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:19:49,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:19:49,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:19:49,875 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:19:49,877 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:19:49,881 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:19:49,882 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:19:49,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:19:49,892 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:19:49,894 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:19:49,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:19:49,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:19:49,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:19:49,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:19:49,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:19:49,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:19:49,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:19:49,920 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:19:49,928 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:19:49,929 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:19:49,929 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:19:49,931 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:19:49,932 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:19:49,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:19:49,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:19:49,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:19:49,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:19:49,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:19:49,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:19:49,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:19:49,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:19:49,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:19:49,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:19:49,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:19:49,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:19:49,947 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-30 00:19:49,996 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:19:49,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:19:49,999 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:19:49,999 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:19:49,999 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:19:50,000 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:19:50,000 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:19:50,000 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:19:50,000 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:19:50,000 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:19:50,002 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:19:50,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:19:50,002 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:19:50,002 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:19:50,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:19:50,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:19:50,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:19:50,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:19:50,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:19:50,004 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:19:50,005 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:19:50,005 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:19:50,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:19:50,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:19:50,005 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:19:50,006 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:19:50,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:19:50,006 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:19:50,007 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:19:50,009 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:19:50,009 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-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d32dea9005a55265d6c4ef8382f17d9e27d71b7 [2020-11-30 00:19:50,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:19:50,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:19:50,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:19:50,324 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:19:50,325 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:19:50,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/c.03.c [2020-11-30 00:19:50,407 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/data/ff755c80b/608edc21784b4851864103bd15d36dee/FLAG0cc513f29 [2020-11-30 00:19:50,908 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:19:50,909 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/sv-benchmarks/c/termination-restricted-15/c.03.c [2020-11-30 00:19:50,915 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/data/ff755c80b/608edc21784b4851864103bd15d36dee/FLAG0cc513f29 [2020-11-30 00:19:51,291 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/data/ff755c80b/608edc21784b4851864103bd15d36dee [2020-11-30 00:19:51,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:19:51,296 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:19:51,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:19:51,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:19:51,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:19:51,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:19:51" (1/1) ... [2020-11-30 00:19:51,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18b02451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:51, skipping insertion in model container [2020-11-30 00:19:51,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:19:51" (1/1) ... [2020-11-30 00:19:51,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:19:51,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:19:51,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:19:51,471 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:19:51,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:19:51,522 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:19:51,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:51 WrapperNode [2020-11-30 00:19:51,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:19:51,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:19:51,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:19:51,525 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:19:51,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:51" (1/1) ... [2020-11-30 00:19:51,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:51" (1/1) ... [2020-11-30 00:19:51,562 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:19:51,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:19:51,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:19:51,564 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:19:51,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:51" (1/1) ... [2020-11-30 00:19:51,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:51" (1/1) ... [2020-11-30 00:19:51,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:51" (1/1) ... [2020-11-30 00:19:51,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:51" (1/1) ... [2020-11-30 00:19:51,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:51" (1/1) ... [2020-11-30 00:19:51,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:51" (1/1) ... [2020-11-30 00:19:51,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:51" (1/1) ... [2020-11-30 00:19:51,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:19:51,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:19:51,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:19:51,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:19:51,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/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 [2020-11-30 00:19:51,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:19:51,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:19:51,776 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:19:51,776 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-30 00:19:51,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:19:51 BoogieIcfgContainer [2020-11-30 00:19:51,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:19:51,779 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:19:51,779 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:19:51,782 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:19:51,783 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:19:51,783 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:19:51" (1/3) ... [2020-11-30 00:19:51,785 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4533c606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:19:51, skipping insertion in model container [2020-11-30 00:19:51,785 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:19:51,785 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:51" (2/3) ... [2020-11-30 00:19:51,786 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4533c606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:19:51, skipping insertion in model container [2020-11-30 00:19:51,786 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:19:51,786 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:19:51" (3/3) ... [2020-11-30 00:19:51,787 INFO L373 chiAutomizerObserver]: Analyzing ICFG c.03.c [2020-11-30 00:19:51,835 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:19:51,835 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:19:51,835 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:19:51,835 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:19:51,835 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:19:51,835 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:19:51,835 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:19:51,835 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:19:51,845 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-11-30 00:19:51,860 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 00:19:51,860 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:19:51,860 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:19:51,867 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-30 00:19:51,867 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:19:51,867 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:19:51,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-11-30 00:19:51,868 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 00:19:51,868 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:19:51,868 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:19:51,869 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-30 00:19:51,869 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:19:51,877 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 3#L12-2true [2020-11-30 00:19:51,877 INFO L796 eck$LassoCheckResult]: Loop: 3#L12-2true assume !!(main_~x~0 < main_~y~0 && main_~z~0 < 2147483647); 5#L12true assume main_~x~0 < main_~z~0;main_~x~0 := 1 + main_~x~0; 3#L12-2true [2020-11-30 00:19:51,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:51,884 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-11-30 00:19:51,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:51,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952500167] [2020-11-30 00:19:51,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:51,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:51,986 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:52,005 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:52,026 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:19:52,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:52,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2020-11-30 00:19:52,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:52,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610176828] [2020-11-30 00:19:52,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:52,063 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:52,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:52,070 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:52,072 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:19:52,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:52,074 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2020-11-30 00:19:52,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:52,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197130416] [2020-11-30 00:19:52,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:52,083 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:52,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:52,090 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:52,093 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:19:52,235 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:19:52,236 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:19:52,236 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:19:52,236 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:19:52,236 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 00:19:52,237 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:52,237 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:19:52,237 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:19:52,237 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.03.c_Iteration1_Loop [2020-11-30 00:19:52,237 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:19:52,238 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:19:52,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:52,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:52,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:52,526 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:19:52,527 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:52,539 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:19:52,540 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:52,556 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:19:52,556 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-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/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 [2020-11-30 00:19:52,588 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:19:52,589 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:19:52,593 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:19:52,593 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-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:52,640 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:19:52,640 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-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/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 [2020-11-30 00:19:52,687 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 00:19:52,688 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:19:52,728 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-30 00:19:52,730 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:19:52,730 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:19:52,730 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:19:52,730 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:19:52,730 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:19:52,730 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:52,730 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:19:52,739 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:19:52,739 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.03.c_Iteration1_Loop [2020-11-30 00:19:52,739 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:19:52,739 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:19:52,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:52,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:52,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:52,881 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:19:52,886 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/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 [2020-11-30 00:19:52,893 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 [2020-11-30 00:19:52,895 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:19:52,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:19:52,896 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:19:52,896 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:19:52,902 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:19:52,902 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:19:52,912 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/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 [2020-11-30 00:19:52,942 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 [2020-11-30 00:19:52,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:19:52,945 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:19:52,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:19:52,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:19:52,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:19:52,948 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:19:52,949 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:19:52,955 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:19:52,965 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-30 00:19:52,965 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:52,972 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:19:52,972 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-30 00:19:52,972 INFO L510 LassoAnalysis]: Proved termination. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:52,973 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~x~0 + 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-11-30 00:19:53,013 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-30 00:19:53,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:53,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:19:53,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:19:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:53,087 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:19:53,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:19:53,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:19:53,126 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 [2020-11-30 00:19:53,128 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2020-11-30 00:19:53,190 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 28 states and 35 transitions. Complement of second has 7 states. [2020-11-30 00:19:53,195 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 [2020-11-30 00:19:53,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:19:53,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2020-11-30 00:19:53,200 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 1 letters. Loop has 2 letters. [2020-11-30 00:19:53,201 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:19:53,201 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 3 letters. Loop has 2 letters. [2020-11-30 00:19:53,201 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:19:53,202 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 1 letters. Loop has 4 letters. [2020-11-30 00:19:53,202 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:19:53,203 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2020-11-30 00:19:53,206 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 00:19:53,226 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2020-11-30 00:19:53,227 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-11-30 00:19:53,228 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-11-30 00:19:53,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2020-11-30 00:19:53,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:19:53,229 INFO L691 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-11-30 00:19:53,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2020-11-30 00:19:53,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2020-11-30 00:19:53,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-11-30 00:19:53,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-11-30 00:19:53,262 INFO L714 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-11-30 00:19:53,262 INFO L594 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-11-30 00:19:53,262 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:19:53,262 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-11-30 00:19:53,266 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 00:19:53,266 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:19:53,266 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:19:53,266 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-30 00:19:53,266 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:19:53,267 INFO L794 eck$LassoCheckResult]: Stem: 75#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 76#L12-2 assume !!(main_~x~0 < main_~y~0 && main_~z~0 < 2147483647); 72#L12 [2020-11-30 00:19:53,267 INFO L796 eck$LassoCheckResult]: Loop: 72#L12 assume !(main_~x~0 < main_~z~0);main_~z~0 := 1 + main_~z~0; 71#L12-2 assume !!(main_~x~0 < main_~y~0 && main_~z~0 < 2147483647); 72#L12 [2020-11-30 00:19:53,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:53,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-11-30 00:19:53,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:53,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44090754] [2020-11-30 00:19:53,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:53,286 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:53,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:53,300 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:53,301 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:19:53,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:53,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2020-11-30 00:19:53,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:53,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764455434] [2020-11-30 00:19:53,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:53,314 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:53,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:53,329 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:53,334 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:19:53,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:53,335 INFO L82 PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 1 times [2020-11-30 00:19:53,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:19:53,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761297780] [2020-11-30 00:19:53,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:19:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:53,350 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:53,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:19:53,360 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:19:53,364 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:19:53,394 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:19:53,394 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:19:53,394 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:19:53,394 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:19:53,394 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 00:19:53,395 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:53,395 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:19:53,395 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:19:53,395 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.03.c_Iteration2_Loop [2020-11-30 00:19:53,395 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:19:53,395 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:19:53,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:53,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:53,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:53,475 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:19:53,475 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:53,508 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:19:53,508 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:53,513 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:19:53,513 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:53,557 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:19:53,557 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:53,561 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:19:53,561 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:53,602 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:19:53,602 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:53,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 00:19:53,656 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:53,705 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-30 00:19:53,709 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:19:53,709 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:19:53,709 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:19:53,709 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:19:53,709 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:19:53,709 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:53,709 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:19:53,709 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:19:53,710 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.03.c_Iteration2_Loop [2020-11-30 00:19:53,710 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:19:53,710 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:19:53,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:53,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:53,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:19:53,876 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:19:53,876 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:53,888 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 [2020-11-30 00:19:53,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:19:53,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:19:53,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:19:53,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:19:53,898 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:19:53,903 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:19:53,908 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:53,954 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 [2020-11-30 00:19:53,956 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:19:53,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:19:53,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:19:53,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:19:53,965 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:19:53,967 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:53,972 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:54,018 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 [2020-11-30 00:19:54,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:19:54,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:19:54,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:19:54,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:19:54,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:19:54,026 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:19:54,026 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:54,030 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:19:54,037 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-30 00:19:54,037 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83239710-056c-4560-adcd-2d62944b9de3/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:19:54,049 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:19:54,050 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-30 00:19:54,050 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:19:54,050 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = -2*ULTIMATE.start_main_~z~0 + 4294967291 Supporting invariants [] Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:19:54,087 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-30 00:19:54,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:19:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:54,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:19:54,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:19:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:19:54,124 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:19:54,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:19:54,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:19:54,193 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 [2020-11-30 00:19:54,193 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-11-30 00:19:54,232 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 16 states and 23 transitions. Complement of second has 6 states. [2020-11-30 00:19:54,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-30 00:19:54,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:19:54,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2020-11-30 00:19:54,236 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2020-11-30 00:19:54,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:19:54,237 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-30 00:19:54,237 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:19:54,237 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2020-11-30 00:19:54,237 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:19:54,237 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2020-11-30 00:19:54,239 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:19:54,239 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2020-11-30 00:19:54,239 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 00:19:54,239 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 00:19:54,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 00:19:54,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:19:54,239 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:19:54,239 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:19:54,239 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:19:54,240 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:19:54,240 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:19:54,240 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:19:54,240 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-30 00:19:54,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:19:54 BoogieIcfgContainer [2020-11-30 00:19:54,247 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:19:54,247 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:19:54,247 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:19:54,248 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:19:54,248 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:19:51" (3/4) ... [2020-11-30 00:19:54,251 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:19:54,252 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:19:54,254 INFO L168 Benchmark]: Toolchain (without parser) took 2956.35 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 68.8 MB in the beginning and 78.5 MB in the end (delta: -9.7 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:19:54,255 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 104.9 MB. Free memory is still 85.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:19:54,257 INFO L168 Benchmark]: CACSL2BoogieTranslator took 223.21 ms. Allocated memory is still 104.9 MB. Free memory was 68.6 MB in the beginning and 81.9 MB in the end (delta: -13.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:19:54,261 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.72 ms. Allocated memory is still 104.9 MB. Free memory was 81.9 MB in the beginning and 80.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:19:54,268 INFO L168 Benchmark]: Boogie Preprocessor took 18.45 ms. Allocated memory is still 104.9 MB. Free memory was 80.5 MB in the beginning and 79.7 MB in the end (delta: 798.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:19:54,269 INFO L168 Benchmark]: RCFGBuilder took 194.82 ms. Allocated memory is still 104.9 MB. Free memory was 79.7 MB in the beginning and 71.2 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:19:54,269 INFO L168 Benchmark]: BuchiAutomizer took 2468.03 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 71.2 MB in the beginning and 79.6 MB in the end (delta: -8.3 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:19:54,270 INFO L168 Benchmark]: Witness Printer took 4.32 ms. Allocated memory is still 125.8 MB. Free memory was 79.6 MB in the beginning and 78.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:19:54,277 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 104.9 MB. Free memory is still 85.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 223.21 ms. Allocated memory is still 104.9 MB. Free memory was 68.6 MB in the beginning and 81.9 MB in the end (delta: -13.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.72 ms. Allocated memory is still 104.9 MB. Free memory was 81.9 MB in the beginning and 80.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.45 ms. Allocated memory is still 104.9 MB. Free memory was 80.5 MB in the beginning and 79.7 MB in the end (delta: 798.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 194.82 ms. Allocated memory is still 104.9 MB. Free memory was 79.7 MB in the beginning and 71.2 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2468.03 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 71.2 MB in the beginning and 79.6 MB in the end (delta: -8.3 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.32 ms. Allocated memory is still 125.8 MB. Free memory was 79.6 MB in the beginning and 78.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * x + y and consists of 5 locations. One deterministic module has affine ranking function -2 * z + 4294967291 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 14 SDslu, 9 SDs, 0 SdLazy, 20 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax172 hnf98 lsp57 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq137 hnf95 smp100 dnf100 smp100 tf109 neg100 sie121 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 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...