./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/a.06.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_15aec4a4-45e4-4b52-be78-d71861f1936b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_15aec4a4-45e4-4b52-be78-d71861f1936b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_15aec4a4-45e4-4b52-be78-d71861f1936b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_15aec4a4-45e4-4b52-be78-d71861f1936b/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/a.06.c -s /tmp/vcloud-vcloud-master/worker/run_dir_15aec4a4-45e4-4b52-be78-d71861f1936b/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_15aec4a4-45e4-4b52-be78-d71861f1936b/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 ce15724170406b51a8a212822f3e961f133e76f0 ..................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 22:56:29,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:56:29,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:56:29,100 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:56:29,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:56:29,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:56:29,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:56:29,115 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:56:29,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:56:29,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:56:29,121 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:56:29,122 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:56:29,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:56:29,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:56:29,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:56:29,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:56:29,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:56:29,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:56:29,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:56:29,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:56:29,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:56:29,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:56:29,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:56:29,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:56:29,145 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:56:29,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:56:29,146 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:56:29,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:56:29,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:56:29,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:56:29,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:56:29,150 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:56:29,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:56:29,152 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:56:29,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:56:29,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:56:29,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:56:29,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:56:29,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:56:29,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:56:29,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:56:29,159 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_15aec4a4-45e4-4b52-be78-d71861f1936b/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 22:56:29,200 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:56:29,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:56:29,202 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:56:29,202 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:56:29,203 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:56:29,209 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 22:56:29,224 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 22:56:29,224 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 22:56:29,224 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 22:56:29,225 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 22:56:29,225 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 22:56:29,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:56:29,226 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 22:56:29,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:56:29,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:56:29,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 22:56:29,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 22:56:29,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 22:56:29,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:56:29,229 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 22:56:29,229 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:56:29,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 22:56:29,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:56:29,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:56:29,230 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 22:56:29,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:56:29,231 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:56:29,232 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:56:29,232 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 22:56:29,233 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 22:56:29,234 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_15aec4a4-45e4-4b52-be78-d71861f1936b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_15aec4a4-45e4-4b52-be78-d71861f1936b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce15724170406b51a8a212822f3e961f133e76f0 [2020-11-29 22:56:29,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:56:29,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:56:29,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:56:29,573 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:56:29,574 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:56:29,575 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_15aec4a4-45e4-4b52-be78-d71861f1936b/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/a.06.c [2020-11-29 22:56:29,672 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_15aec4a4-45e4-4b52-be78-d71861f1936b/bin/uautomizer/data/133642bec/1e9a9214ca744cc5b7552dc16bfb1f46/FLAG6b7e336c3 [2020-11-29 22:56:30,238 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:56:30,239 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_15aec4a4-45e4-4b52-be78-d71861f1936b/sv-benchmarks/c/termination-restricted-15/a.06.c [2020-11-29 22:56:30,247 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_15aec4a4-45e4-4b52-be78-d71861f1936b/bin/uautomizer/data/133642bec/1e9a9214ca744cc5b7552dc16bfb1f46/FLAG6b7e336c3 [2020-11-29 22:56:30,623 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_15aec4a4-45e4-4b52-be78-d71861f1936b/bin/uautomizer/data/133642bec/1e9a9214ca744cc5b7552dc16bfb1f46 [2020-11-29 22:56:30,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:56:30,629 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:56:30,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:56:30,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:56:30,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:56:30,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:56:30" (1/1) ... [2020-11-29 22:56:30,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59bbc535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:56:30, skipping insertion in model container [2020-11-29 22:56:30,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:56:30" (1/1) ... [2020-11-29 22:56:30,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:56:30,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:56:30,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:56:30,805 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:56:30,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:56:30,837 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:56:30,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:56:30 WrapperNode [2020-11-29 22:56:30,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:56:30,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:56:30,840 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:56:30,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:56:30,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:56:30" (1/1) ... [2020-11-29 22:56:30,881 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:56:30" (1/1) ... [2020-11-29 22:56:30,902 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:56:30,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:56:30,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:56:30,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:56:30,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:56:30" (1/1) ... [2020-11-29 22:56:30,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:56:30" (1/1) ... [2020-11-29 22:56:30,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:56:30" (1/1) ... [2020-11-29 22:56:30,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:56:30" (1/1) ... [2020-11-29 22:56:30,915 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:56:30" (1/1) ... [2020-11-29 22:56:30,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:56:30" (1/1) ... [2020-11-29 22:56:30,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:56:30" (1/1) ... [2020-11-29 22:56:30,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:56:30,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:56:30,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:56:30,924 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:56:30,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:56:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_15aec4a4-45e4-4b52-be78-d71861f1936b/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 [2020-11-29 22:56:30,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:56:30,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:56:31,130 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:56:31,131 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-29 22:56:31,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:56:31 BoogieIcfgContainer [2020-11-29 22:56:31,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:56:31,134 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 22:56:31,134 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 22:56:31,137 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 22:56:31,137 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:56:31,138 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 10:56:30" (1/3) ... [2020-11-29 22:56:31,139 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@275976b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:56:31, skipping insertion in model container [2020-11-29 22:56:31,139 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:56:31,139 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:56:30" (2/3) ... [2020-11-29 22:56:31,139 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@275976b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:56:31, skipping insertion in model container [2020-11-29 22:56:31,140 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:56:31,140 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:56:31" (3/3) ... [2020-11-29 22:56:31,141 INFO L373 chiAutomizerObserver]: Analyzing ICFG a.06.c [2020-11-29 22:56:31,195 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 22:56:31,195 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 22:56:31,195 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 22:56:31,195 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:56:31,196 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:56:31,196 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 22:56:31,196 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:56:31,196 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 22:56:31,207 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-11-29 22:56:31,223 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 22:56:31,223 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:56:31,223 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:56:31,229 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-29 22:56:31,229 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-29 22:56:31,230 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 22:56:31,230 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-11-29 22:56:31,231 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 22:56:31,231 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:56:31,231 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:56:31,231 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-29 22:56:31,231 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-29 22:56:31,238 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 [2020-11-29 22:56:31,239 INFO L796 eck$LassoCheckResult]: Loop: 3#L12-2true assume !!(((((main_~y~0 >= 0 && main_~z~0 < 2147483647 - main_~y~0) || (main_~y~0 < 0 && main_~z~0 > -2147483648 - main_~y~0)) && main_~x~0 > main_~y~0 + main_~z~0) && main_~y~0 < 2147483647) && main_~z~0 < 2147483647);main_~y~0 := 1 + main_~y~0;main_~z~0 := 1 + main_~z~0; 3#L12-2true [2020-11-29 22:56:31,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:56:31,245 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-11-29 22:56:31,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:56:31,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847019271] [2020-11-29 22:56:31,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:56:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:56:31,329 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:56:31,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:56:31,335 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:56:31,351 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:56:31,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:56:31,353 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2020-11-29 22:56:31,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:56:31,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828855981] [2020-11-29 22:56:31,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:56:31,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:56:31,370 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:56:31,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:56:31,379 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:56:31,381 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:56:31,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:56:31,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-11-29 22:56:31,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:56:31,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990392140] [2020-11-29 22:56:31,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:56:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:56:31,396 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:56:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:56:31,406 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:56:31,409 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:56:31,612 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-11-29 22:56:31,704 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:56:31,704 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:56:31,705 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:56:31,705 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:56:31,705 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 22:56:31,705 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:56:31,706 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:56:31,706 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:56:31,706 INFO L133 ssoRankerPreferences]: Filename of dumped script: a.06.c_Iteration1_Loop [2020-11-29 22:56:31,706 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:56:31,706 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:56:31,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:56:31,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:56:31,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:56:32,141 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 26 [2020-11-29 22:56:32,150 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:56:32,152 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_15aec4a4-45e4-4b52-be78-d71861f1936b/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) [2020-11-29 22:56:32,163 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 22:56:32,163 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 [2020-11-29 22:56:32,180 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 22:56:32,181 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_15aec4a4-45e4-4b52-be78-d71861f1936b/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 [2020-11-29 22:56:32,244 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 22:56:32,244 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 22:56:32,248 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 22:56:32,248 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_15aec4a4-45e4-4b52-be78-d71861f1936b/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) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:56:32,281 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 22:56:32,281 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_15aec4a4-45e4-4b52-be78-d71861f1936b/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 [2020-11-29 22:56:32,333 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 22:56:32,333 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 22:56:32,386 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 22:56:32,388 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:56:32,388 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:56:32,388 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:56:32,389 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:56:32,389 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 22:56:32,389 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:56:32,389 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:56:32,389 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:56:32,389 INFO L133 ssoRankerPreferences]: Filename of dumped script: a.06.c_Iteration1_Loop [2020-11-29 22:56:32,389 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:56:32,389 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:56:32,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:56:32,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:56:32,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:56:32,658 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 26 [2020-11-29 22:56:32,663 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:56:32,670 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_15aec4a4-45e4-4b52-be78-d71861f1936b/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) [2020-11-29 22:56:32,680 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 [2020-11-29 22:56:32,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:56:32,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:56:32,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:56:32,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:56:32,690 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:56:32,690 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 [2020-11-29 22:56:32,695 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_15aec4a4-45e4-4b52-be78-d71861f1936b/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 [2020-11-29 22:56:32,756 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 [2020-11-29 22:56:32,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:56:32,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:56:32,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:56:32,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:56:32,762 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:56:32,762 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:56:32,767 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_15aec4a4-45e4-4b52-be78-d71861f1936b/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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:56:32,811 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 [2020-11-29 22:56:32,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:56:32,814 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:56:32,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:56:32,815 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 22:56:32,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:56:32,820 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 22:56:32,820 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:56:32,827 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 22:56:32,856 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 22:56:32,856 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_15aec4a4-45e4-4b52-be78-d71861f1936b/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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:56:32,861 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 22:56:32,861 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 22:56:32,862 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 22:56:32,862 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 4294967293 Supporting invariants [] [2020-11-29 22:56:32,886 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 22:56:32,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:56:33,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:56:33,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:56:33,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:56:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:56:33,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 22:56:33,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:56:33,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:56:33,085 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-11-29 22:56:33,086 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2020-11-29 22:56:33,137 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states.. Second operand 2 states. Result 15 states and 18 transitions. Complement of second has 5 states. [2020-11-29 22:56:33,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 22:56:33,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-11-29 22:56:33,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-11-29 22:56:33,144 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2020-11-29 22:56:33,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:56:33,144 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2020-11-29 22:56:33,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:56:33,145 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2020-11-29 22:56:33,145 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:56:33,146 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2020-11-29 22:56:33,150 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 22:56:33,153 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2020-11-29 22:56:33,154 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 22:56:33,154 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 22:56:33,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 22:56:33,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:56:33,155 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:56:33,156 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:56:33,156 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:56:33,156 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 22:56:33,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 22:56:33,156 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 22:56:33,156 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 22:56:33,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 10:56:33 BoogieIcfgContainer [2020-11-29 22:56:33,163 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 22:56:33,165 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:56:33,165 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:56:33,165 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:56:33,166 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:56:31" (3/4) ... [2020-11-29 22:56:33,170 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 22:56:33,170 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:56:33,172 INFO L168 Benchmark]: Toolchain (without parser) took 2544.13 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 50.2 MB in the beginning and 63.7 MB in the end (delta: -13.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:56:33,173 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 81.8 MB. Free memory was 40.8 MB in the beginning and 40.7 MB in the end (delta: 42.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:56:33,173 INFO L168 Benchmark]: CACSL2BoogieTranslator took 206.95 ms. Allocated memory is still 81.8 MB. Free memory was 50.0 MB in the beginning and 60.9 MB in the end (delta: -10.9 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:56:33,174 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.42 ms. Allocated memory is still 81.8 MB. Free memory was 60.9 MB in the beginning and 59.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:56:33,175 INFO L168 Benchmark]: Boogie Preprocessor took 19.57 ms. Allocated memory is still 81.8 MB. Free memory was 59.7 MB in the beginning and 58.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:56:33,176 INFO L168 Benchmark]: RCFGBuilder took 209.40 ms. Allocated memory is still 81.8 MB. Free memory was 58.7 MB in the beginning and 50.8 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:56:33,176 INFO L168 Benchmark]: BuchiAutomizer took 2029.28 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 50.5 MB in the beginning and 64.5 MB in the end (delta: -14.0 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:56:33,177 INFO L168 Benchmark]: Witness Printer took 5.62 ms. Allocated memory is still 100.7 MB. Free memory was 64.5 MB in the beginning and 63.7 MB in the end (delta: 836.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:56:33,181 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 81.8 MB. Free memory was 40.8 MB in the beginning and 40.7 MB in the end (delta: 42.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 206.95 ms. Allocated memory is still 81.8 MB. Free memory was 50.0 MB in the beginning and 60.9 MB in the end (delta: -10.9 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.42 ms. Allocated memory is still 81.8 MB. Free memory was 60.9 MB in the beginning and 59.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.57 ms. Allocated memory is still 81.8 MB. Free memory was 59.7 MB in the beginning and 58.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 209.40 ms. Allocated memory is still 81.8 MB. Free memory was 58.7 MB in the beginning and 50.8 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2029.28 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 50.5 MB in the beginning and 64.5 MB in the end (delta: -14.0 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. * Witness Printer took 5.62 ms. Allocated memory is still 100.7 MB. Free memory was 64.5 MB in the beginning and 63.7 MB in the end (delta: 836.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * y + 4294967293 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. 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 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital43 mio100 ax127 hnf100 lsp110 ukn62 mio100 lsp100 div100 bol100 ite100 ukn100 eq131 hnf95 smp100 dnf177 smp96 tf102 neg100 sie119 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...