./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Bangalore-2.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_c0eaaac8-e8f7-413e-8e18-da69938faddf/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c0eaaac8-e8f7-413e-8e18-da69938faddf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c0eaaac8-e8f7-413e-8e18-da69938faddf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c0eaaac8-e8f7-413e-8e18-da69938faddf/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Bangalore-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c0eaaac8-e8f7-413e-8e18-da69938faddf/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c0eaaac8-e8f7-413e-8e18-da69938faddf/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 9c51224894dcd32e556532086a33c2900554a2d1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 20:25:09,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:25:09,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:25:10,042 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:25:10,043 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:25:10,048 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:25:10,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:25:10,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:25:10,057 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:25:10,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:25:10,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:25:10,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:25:10,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:25:10,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:25:10,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:25:10,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:25:10,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:25:10,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:25:10,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:25:10,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:25:10,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:25:10,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:25:10,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:25:10,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:25:10,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:25:10,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:25:10,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:25:10,108 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:25:10,109 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:25:10,110 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:25:10,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:25:10,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:25:10,114 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:25:10,115 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:25:10,116 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:25:10,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:25:10,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:25:10,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:25:10,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:25:10,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:25:10,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:25:10,122 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c0eaaac8-e8f7-413e-8e18-da69938faddf/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 20:25:10,158 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:25:10,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:25:10,160 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:25:10,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:25:10,160 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:25:10,161 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 20:25:10,161 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 20:25:10,161 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 20:25:10,161 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 20:25:10,161 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 20:25:10,163 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 20:25:10,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:25:10,163 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:25:10,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:25:10,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:25:10,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 20:25:10,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 20:25:10,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 20:25:10,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:25:10,165 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 20:25:10,165 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:25:10,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 20:25:10,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:25:10,166 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:25:10,166 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 20:25:10,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:25:10,166 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:25:10,167 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:25:10,167 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 20:25:10,168 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 20:25:10,168 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_c0eaaac8-e8f7-413e-8e18-da69938faddf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c0eaaac8-e8f7-413e-8e18-da69938faddf/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c51224894dcd32e556532086a33c2900554a2d1 [2020-11-29 20:25:10,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:25:10,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:25:10,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:25:10,463 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:25:10,464 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:25:10,465 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c0eaaac8-e8f7-413e-8e18-da69938faddf/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Bangalore-2.c [2020-11-29 20:25:10,541 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c0eaaac8-e8f7-413e-8e18-da69938faddf/bin/uautomizer/data/fe8274515/05b0ffb11848412a9f67ca60a74c2d68/FLAG6b1dba305 [2020-11-29 20:25:10,951 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:25:10,952 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c0eaaac8-e8f7-413e-8e18-da69938faddf/sv-benchmarks/c/termination-crafted/Bangalore-2.c [2020-11-29 20:25:10,957 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c0eaaac8-e8f7-413e-8e18-da69938faddf/bin/uautomizer/data/fe8274515/05b0ffb11848412a9f67ca60a74c2d68/FLAG6b1dba305 [2020-11-29 20:25:11,361 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c0eaaac8-e8f7-413e-8e18-da69938faddf/bin/uautomizer/data/fe8274515/05b0ffb11848412a9f67ca60a74c2d68 [2020-11-29 20:25:11,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:25:11,365 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:25:11,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:25:11,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:25:11,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:25:11,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:25:11" (1/1) ... [2020-11-29 20:25:11,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ea76ba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:11, skipping insertion in model container [2020-11-29 20:25:11,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:25:11" (1/1) ... [2020-11-29 20:25:11,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:25:11,405 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:25:11,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:25:11,581 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:25:11,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:25:11,608 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:25:11,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:11 WrapperNode [2020-11-29 20:25:11,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:25:11,610 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:25:11,610 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:25:11,610 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:25:11,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:11" (1/1) ... [2020-11-29 20:25:11,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:11" (1/1) ... [2020-11-29 20:25:11,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:25:11,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:25:11,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:25:11,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:25:11,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:11" (1/1) ... [2020-11-29 20:25:11,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:11" (1/1) ... [2020-11-29 20:25:11,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:11" (1/1) ... [2020-11-29 20:25:11,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:11" (1/1) ... [2020-11-29 20:25:11,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:11" (1/1) ... [2020-11-29 20:25:11,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:11" (1/1) ... [2020-11-29 20:25:11,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:11" (1/1) ... [2020-11-29 20:25:11,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:25:11,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:25:11,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:25:11,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:25:11,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c0eaaac8-e8f7-413e-8e18-da69938faddf/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 20:25:11,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:25:11,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:25:11,878 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:25:11,879 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-29 20:25:11,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:25:11 BoogieIcfgContainer [2020-11-29 20:25:11,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:25:11,883 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 20:25:11,884 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 20:25:11,889 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 20:25:11,890 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:25:11,890 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 08:25:11" (1/3) ... [2020-11-29 20:25:11,892 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@773dc9b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:25:11, skipping insertion in model container [2020-11-29 20:25:11,892 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:25:11,892 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:11" (2/3) ... [2020-11-29 20:25:11,892 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@773dc9b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:25:11, skipping insertion in model container [2020-11-29 20:25:11,893 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:25:11,893 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:25:11" (3/3) ... [2020-11-29 20:25:11,894 INFO L373 chiAutomizerObserver]: Analyzing ICFG Bangalore-2.c [2020-11-29 20:25:11,960 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 20:25:11,960 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 20:25:11,961 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 20:25:11,961 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:25:11,961 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:25:11,961 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 20:25:11,961 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:25:11,961 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 20:25:11,974 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-11-29 20:25:11,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 20:25:11,993 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:25:11,993 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:25:11,998 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 20:25:11,998 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-29 20:25:11,999 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 20:25:11,999 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-11-29 20:25:12,000 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 20:25:12,000 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:25:12,000 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:25:12,001 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 20:25:12,001 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-29 20:25:12,008 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 8#L18true assume main_~y~0 >= 1; 4#L19-2true [2020-11-29 20:25:12,008 INFO L796 eck$LassoCheckResult]: Loop: 4#L19-2true assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 - main_~y~0; 4#L19-2true [2020-11-29 20:25:12,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:25:12,015 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2020-11-29 20:25:12,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:25:12,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163101426] [2020-11-29 20:25:12,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:25:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:25:12,096 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:25:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:25:12,102 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:25:12,117 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:25:12,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:25:12,119 INFO L82 PathProgramCache]: Analyzing trace with hash 44, now seen corresponding path program 1 times [2020-11-29 20:25:12,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:25:12,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467633709] [2020-11-29 20:25:12,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:25:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:25:12,128 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:25:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:25:12,132 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:25:12,133 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:25:12,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:25:12,135 INFO L82 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2020-11-29 20:25:12,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:25:12,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91264764] [2020-11-29 20:25:12,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:25:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:25:12,145 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:25:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:25:12,150 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:25:12,152 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:25:12,285 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:25:12,286 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:25:12,286 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:25:12,286 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:25:12,287 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 20:25:12,287 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:25:12,287 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:25:12,287 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:25:12,288 INFO L133 ssoRankerPreferences]: Filename of dumped script: Bangalore-2.c_Iteration1_Lasso [2020-11-29 20:25:12,288 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:25:12,288 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:25:12,306 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 20:25:12,322 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 20:25:12,345 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 20:25:12,350 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 20:25:12,370 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 20:25:12,382 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 20:25:12,502 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:25:12,502 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c0eaaac8-e8f7-413e-8e18-da69938faddf/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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:25:12,511 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:25:12,511 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 20:25:12,518 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 20:25:12,518 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c0eaaac8-e8f7-413e-8e18-da69938faddf/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 20:25:12,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:25:12,540 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 20:25:12,544 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 20:25:12,544 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_c0eaaac8-e8f7-413e-8e18-da69938faddf/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 20:25:12,570 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:25:12,570 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 20:25:12,573 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 20:25:12,573 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c0eaaac8-e8f7-413e-8e18-da69938faddf/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 20:25:12,597 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:25:12,597 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 20:25:12,616 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 20:25:12,616 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c0eaaac8-e8f7-413e-8e18-da69938faddf/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 [2020-11-29 20:25:12,641 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:25:12,641 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c0eaaac8-e8f7-413e-8e18-da69938faddf/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 20:25:12,681 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 20:25:12,681 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 20:25:12,750 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 20:25:12,752 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:25:12,752 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:25:12,752 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:25:12,752 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:25:12,752 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 20:25:12,753 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:25:12,753 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:25:12,753 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:25:12,753 INFO L133 ssoRankerPreferences]: Filename of dumped script: Bangalore-2.c_Iteration1_Lasso [2020-11-29 20:25:12,753 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:25:12,753 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:25:12,755 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 20:25:12,769 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 20:25:12,772 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 20:25:12,777 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 20:25:12,782 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 20:25:12,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:25:13,032 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:25:13,037 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c0eaaac8-e8f7-413e-8e18-da69938faddf/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) [2020-11-29 20:25:13,044 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 20:25:13,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:25:13,047 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:25:13,047 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:25:13,047 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:25:13,056 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:25:13,056 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:25:13,062 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c0eaaac8-e8f7-413e-8e18-da69938faddf/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 20:25:13,085 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 20:25:13,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:25:13,086 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:25:13,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:25:13,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:25:13,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:25:13,088 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:25:13,088 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:25:13,091 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c0eaaac8-e8f7-413e-8e18-da69938faddf/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) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:25:13,117 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 20:25:13,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:25:13,119 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:25:13,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:25:13,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:25:13,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:25:13,120 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:25:13,120 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:25:13,122 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c0eaaac8-e8f7-413e-8e18-da69938faddf/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 [2020-11-29 20:25:13,167 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 20:25:13,170 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:25:13,170 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:25:13,170 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:25:13,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:25:13,170 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:25:13,171 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:25:13,171 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:25:13,176 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c0eaaac8-e8f7-413e-8e18-da69938faddf/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) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:25:13,200 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 20:25:13,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:25:13,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:25:13,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:25:13,202 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:25:13,206 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:25:13,206 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:25:13,218 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c0eaaac8-e8f7-413e-8e18-da69938faddf/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 [2020-11-29 20:25:13,251 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 20:25:13,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:25:13,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:25:13,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:25:13,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:25:13,259 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:25:13,259 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:25:13,268 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 20:25:13,296 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-11-29 20:25:13,296 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c0eaaac8-e8f7-413e-8e18-da69938faddf/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) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:25:13,337 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 20:25:13,340 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-29 20:25:13,340 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 20:25:13,341 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2020-11-29 20:25:13,378 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-11-29 20:25:13,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:25:13,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:25:13,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 20:25:13,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:25:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:25:13,471 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 20:25:13,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:25:13,472 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 20:25:13,489 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 20:25:13,491 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 2 states. [2020-11-29 20:25:13,554 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 2 states. Result 20 states and 23 transitions. Complement of second has 5 states. [2020-11-29 20:25:13,557 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 20:25:13,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-11-29 20:25:13,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2020-11-29 20:25:13,562 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 2 letters. Loop has 1 letters. [2020-11-29 20:25:13,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:25:13,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 1 letters. [2020-11-29 20:25:13,564 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:25:13,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 2 letters. Loop has 2 letters. [2020-11-29 20:25:13,565 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:25:13,565 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2020-11-29 20:25:13,571 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 20:25:13,573 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2020-11-29 20:25:13,574 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 20:25:13,574 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 20:25:13,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 20:25:13,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:25:13,579 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:25:13,579 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:25:13,579 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:25:13,580 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 20:25:13,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:25:13,580 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 20:25:13,580 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 20:25:13,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 08:25:13 BoogieIcfgContainer [2020-11-29 20:25:13,586 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 20:25:13,586 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:25:13,586 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:25:13,587 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:25:13,587 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:25:11" (3/4) ... [2020-11-29 20:25:13,590 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 20:25:13,590 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:25:13,593 INFO L168 Benchmark]: Toolchain (without parser) took 2225.99 ms. Allocated memory is still 123.7 MB. Free memory was 94.4 MB in the beginning and 81.2 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:25:13,594 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 79.7 MB. Free memory was 45.9 MB in the beginning and 45.8 MB in the end (delta: 115.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:25:13,596 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.46 ms. Allocated memory is still 123.7 MB. Free memory was 94.0 MB in the beginning and 103.2 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:25:13,597 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.33 ms. Allocated memory is still 123.7 MB. Free memory was 103.2 MB in the beginning and 102.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:25:13,597 INFO L168 Benchmark]: Boogie Preprocessor took 16.95 ms. Allocated memory is still 123.7 MB. Free memory was 102.0 MB in the beginning and 101.2 MB in the end (delta: 757.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:25:13,599 INFO L168 Benchmark]: RCFGBuilder took 225.45 ms. Allocated memory is still 123.7 MB. Free memory was 101.0 MB in the beginning and 92.8 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:25:13,605 INFO L168 Benchmark]: BuchiAutomizer took 1703.00 ms. Allocated memory is still 123.7 MB. Free memory was 92.8 MB in the beginning and 81.2 MB in the end (delta: 11.6 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:25:13,606 INFO L168 Benchmark]: Witness Printer took 3.84 ms. Allocated memory is still 123.7 MB. Free memory is still 81.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:25:13,612 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 79.7 MB. Free memory was 45.9 MB in the beginning and 45.8 MB in the end (delta: 115.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 242.46 ms. Allocated memory is still 123.7 MB. Free memory was 94.0 MB in the beginning and 103.2 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.33 ms. Allocated memory is still 123.7 MB. Free memory was 103.2 MB in the beginning and 102.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 16.95 ms. Allocated memory is still 123.7 MB. Free memory was 102.0 MB in the beginning and 101.2 MB in the end (delta: 757.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 225.45 ms. Allocated memory is still 123.7 MB. Free memory was 101.0 MB in the beginning and 92.8 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1703.00 ms. Allocated memory is still 123.7 MB. Free memory was 92.8 MB in the beginning and 81.2 MB in the end (delta: 11.6 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. * Witness Printer took 3.84 ms. Allocated memory is still 123.7 MB. Free memory is still 81.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 9 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax192 hnf92 lsp47 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 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...