./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.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_ded6f225-0651-4572-9cb5-552edf3c3ac7/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ded6f225-0651-4572-9cb5-552edf3c3ac7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ded6f225-0651-4572-9cb5-552edf3c3ac7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ded6f225-0651-4572-9cb5-552edf3c3ac7/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ded6f225-0651-4572-9cb5-552edf3c3ac7/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ded6f225-0651-4572-9cb5-552edf3c3ac7/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 8fcad1cc5c987e49a6afac90dd5119b31f7d391b ........................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:09:02,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:09:02,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:09:02,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:09:02,231 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:09:02,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:09:02,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:09:02,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:09:02,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:09:02,242 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:09:02,243 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:09:02,245 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:09:02,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:09:02,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:09:02,248 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:09:02,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:09:02,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:09:02,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:09:02,256 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:09:02,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:09:02,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:09:02,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:09:02,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:09:02,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:09:02,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:09:02,277 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:09:02,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:09:02,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:09:02,280 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:09:02,281 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:09:02,281 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:09:02,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:09:02,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:09:02,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:09:02,299 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:09:02,299 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:09:02,300 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:09:02,300 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:09:02,301 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:09:02,302 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:09:02,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:09:02,309 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ded6f225-0651-4572-9cb5-552edf3c3ac7/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-28 03:09:02,349 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:09:02,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:09:02,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:09:02,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:09:02,355 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:09:02,356 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:09:02,356 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:09:02,356 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:09:02,356 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:09:02,357 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:09:02,358 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:09:02,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:09:02,359 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:09:02,359 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:09:02,359 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:09:02,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:09:02,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:09:02,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:09:02,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:09:02,360 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:09:02,361 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:09:02,361 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:09:02,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:09:02,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:09:02,362 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:09:02,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:09:02,362 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:09:02,362 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:09:02,363 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:09:02,365 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:09:02,365 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_ded6f225-0651-4572-9cb5-552edf3c3ac7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ded6f225-0651-4572-9cb5-552edf3c3ac7/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fcad1cc5c987e49a6afac90dd5119b31f7d391b [2020-11-28 03:09:02,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:09:02,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:09:02,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:09:02,740 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:09:02,741 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:09:02,742 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ded6f225-0651-4572-9cb5-552edf3c3ac7/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c [2020-11-28 03:09:02,844 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ded6f225-0651-4572-9cb5-552edf3c3ac7/bin/uautomizer/data/b593e4fb1/812f0055535f4401bc1e06bd00959cdb/FLAG1d9b0f3c7 [2020-11-28 03:09:03,358 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:09:03,359 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ded6f225-0651-4572-9cb5-552edf3c3ac7/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c [2020-11-28 03:09:03,378 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ded6f225-0651-4572-9cb5-552edf3c3ac7/bin/uautomizer/data/b593e4fb1/812f0055535f4401bc1e06bd00959cdb/FLAG1d9b0f3c7 [2020-11-28 03:09:03,703 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ded6f225-0651-4572-9cb5-552edf3c3ac7/bin/uautomizer/data/b593e4fb1/812f0055535f4401bc1e06bd00959cdb [2020-11-28 03:09:03,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:09:03,709 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:09:03,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:09:03,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:09:03,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:09:03,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:09:03" (1/1) ... [2020-11-28 03:09:03,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4648f530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:03, skipping insertion in model container [2020-11-28 03:09:03,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:09:03" (1/1) ... [2020-11-28 03:09:03,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:09:03,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:09:03,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:09:03,925 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:09:03,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:09:03,986 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:09:03,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:03 WrapperNode [2020-11-28 03:09:03,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:09:03,989 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:09:03,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:09:03,990 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:09:04,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:03" (1/1) ... [2020-11-28 03:09:04,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:03" (1/1) ... [2020-11-28 03:09:04,033 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:09:04,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:09:04,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:09:04,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:09:04,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:03" (1/1) ... [2020-11-28 03:09:04,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:03" (1/1) ... [2020-11-28 03:09:04,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:03" (1/1) ... [2020-11-28 03:09:04,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:03" (1/1) ... [2020-11-28 03:09:04,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:03" (1/1) ... [2020-11-28 03:09:04,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:03" (1/1) ... [2020-11-28 03:09:04,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:03" (1/1) ... [2020-11-28 03:09:04,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:09:04,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:09:04,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:09:04,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:09:04,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ded6f225-0651-4572-9cb5-552edf3c3ac7/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 [2020-11-28 03:09:04,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:09:04,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:09:04,308 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:09:04,308 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 03:09:04,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:04 BoogieIcfgContainer [2020-11-28 03:09:04,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:09:04,313 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:09:04,313 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:09:04,318 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:09:04,320 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:09:04,320 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:09:03" (1/3) ... [2020-11-28 03:09:04,323 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9b14b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:09:04, skipping insertion in model container [2020-11-28 03:09:04,323 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:09:04,324 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:03" (2/3) ... [2020-11-28 03:09:04,324 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9b14b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:09:04, skipping insertion in model container [2020-11-28 03:09:04,324 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:09:04,325 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:04" (3/3) ... [2020-11-28 03:09:04,328 INFO L373 chiAutomizerObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c [2020-11-28 03:09:04,405 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:09:04,405 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:09:04,405 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:09:04,406 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:09:04,406 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:09:04,406 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:09:04,406 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:09:04,406 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:09:04,420 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-11-28 03:09:04,441 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:09:04,442 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:09:04,442 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:09:04,448 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-28 03:09:04,448 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:09:04,449 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:09:04,449 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-11-28 03:09:04,450 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:09:04,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:09:04,450 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:09:04,451 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-28 03:09:04,451 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:09:04,459 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := 0;main_~y~0 := 100;main_~z~0 := main_#t~nondet0;havoc main_#t~nondet0; 8#L15-2true [2020-11-28 03:09:04,459 INFO L796 eck$LassoCheckResult]: Loop: 8#L15-2true assume !!(main_~x~0 < 40); 3#L15true assume 0 == main_~z~0;main_~x~0 := 1 + main_~x~0; 8#L15-2true [2020-11-28 03:09:04,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:04,469 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-11-28 03:09:04,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:04,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915558294] [2020-11-28 03:09:04,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:04,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:04,553 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:04,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:04,558 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:04,574 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:04,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:04,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2020-11-28 03:09:04,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:04,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383475110] [2020-11-28 03:09:04,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:04,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:04,589 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:04,593 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:04,595 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:04,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:04,598 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2020-11-28 03:09:04,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:04,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005918430] [2020-11-28 03:09:04,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:04,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:04,609 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:04,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:04,615 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:04,617 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:04,729 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-11-28 03:09:04,807 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:09:04,808 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:09:04,808 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:09:04,808 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:09:04,809 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:09:04,809 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:04,809 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:09:04,809 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:09:04,809 INFO L133 ssoRankerPreferences]: Filename of dumped script: ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c_Iteration1_Loop [2020-11-28 03:09:04,810 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:09:04,810 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:09:04,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:04,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:04,992 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:09:04,993 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ded6f225-0651-4572-9cb5-552edf3c3ac7/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) [2020-11-28 03:09:05,006 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:09:05,006 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 [2020-11-28 03:09:05,022 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:09:05,023 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=0} Honda state: {ULTIMATE.start_main_~z~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ded6f225-0651-4572-9cb5-552edf3c3ac7/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) [2020-11-28 03:09:05,071 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:09:05,072 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ded6f225-0651-4572-9cb5-552edf3c3ac7/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:09:05,124 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:09:05,125 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:05,178 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:09:05,181 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:09:05,181 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:09:05,181 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:09:05,181 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:09:05,181 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:09:05,182 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:05,182 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:09:05,182 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:09:05,182 INFO L133 ssoRankerPreferences]: Filename of dumped script: ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c_Iteration1_Loop [2020-11-28 03:09:05,182 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:09:05,182 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:09:05,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:05,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:05,289 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:09:05,295 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ded6f225-0651-4572-9cb5-552edf3c3ac7/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) [2020-11-28 03:09:05,306 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 [2020-11-28 03:09:05,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:05,310 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:05,311 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:05,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:05,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:05,319 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:05,319 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:05,325 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ded6f225-0651-4572-9cb5-552edf3c3ac7/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) [2020-11-28 03:09:05,377 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 [2020-11-28 03:09:05,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:05,380 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:05,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:05,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:05,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:05,386 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:05,387 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:05,392 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:09:05,399 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-28 03:09:05,400 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ded6f225-0651-4572-9cb5-552edf3c3ac7/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 [2020-11-28 03:09:05,411 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:09:05,411 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:09:05,412 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:09:05,412 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 79 Supporting invariants [] [2020-11-28 03:09:05,457 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-28 03:09:05,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:05,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:09:05,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:05,547 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:09:05,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:05,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:05,645 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 03:09:05,647 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2020-11-28 03:09:05,705 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 17 states and 22 transitions. Complement of second has 7 states. [2020-11-28 03:09:05,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 03:09:05,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:09:05,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2020-11-28 03:09:05,710 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 1 letters. Loop has 2 letters. [2020-11-28 03:09:05,711 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:05,711 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 3 letters. Loop has 2 letters. [2020-11-28 03:09:05,711 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:05,712 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 1 letters. Loop has 4 letters. [2020-11-28 03:09:05,712 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:05,713 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 22 transitions. [2020-11-28 03:09:05,716 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:09:05,719 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 0 states and 0 transitions. [2020-11-28 03:09:05,720 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:09:05,721 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:09:05,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:09:05,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:09:05,722 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:09:05,722 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:09:05,722 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:09:05,722 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:09:05,723 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:09:05,723 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:09:05,723 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:09:05,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:09:05 BoogieIcfgContainer [2020-11-28 03:09:05,730 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:09:05,731 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:09:05,731 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:09:05,731 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:09:05,732 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:04" (3/4) ... [2020-11-28 03:09:05,735 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:09:05,736 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:09:05,738 INFO L168 Benchmark]: Toolchain (without parser) took 2027.50 ms. Allocated memory was 92.3 MB in the beginning and 119.5 MB in the end (delta: 27.3 MB). Free memory was 55.9 MB in the beginning and 65.1 MB in the end (delta: -9.2 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:05,739 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 92.3 MB. Free memory is still 72.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:09:05,740 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.40 ms. Allocated memory is still 92.3 MB. Free memory was 55.7 MB in the beginning and 70.5 MB in the end (delta: -14.8 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:05,741 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.01 ms. Allocated memory is still 92.3 MB. Free memory was 70.5 MB in the beginning and 69.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:09:05,741 INFO L168 Benchmark]: Boogie Preprocessor took 24.95 ms. Allocated memory is still 92.3 MB. Free memory was 69.3 MB in the beginning and 68.4 MB in the end (delta: 865.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:09:05,742 INFO L168 Benchmark]: RCFGBuilder took 250.72 ms. Allocated memory is still 92.3 MB. Free memory was 68.4 MB in the beginning and 60.6 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:05,743 INFO L168 Benchmark]: BuchiAutomizer took 1416.70 ms. Allocated memory was 92.3 MB in the beginning and 119.5 MB in the end (delta: 27.3 MB). Free memory was 60.6 MB in the beginning and 65.1 MB in the end (delta: -4.5 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:05,744 INFO L168 Benchmark]: Witness Printer took 5.42 ms. Allocated memory is still 119.5 MB. Free memory is still 65.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:09:05,748 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 92.3 MB. Free memory is still 72.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 270.40 ms. Allocated memory is still 92.3 MB. Free memory was 55.7 MB in the beginning and 70.5 MB in the end (delta: -14.8 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.01 ms. Allocated memory is still 92.3 MB. Free memory was 70.5 MB in the beginning and 69.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.95 ms. Allocated memory is still 92.3 MB. Free memory was 69.3 MB in the beginning and 68.4 MB in the end (delta: 865.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 250.72 ms. Allocated memory is still 92.3 MB. Free memory was 68.4 MB in the beginning and 60.6 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1416.70 ms. Allocated memory was 92.3 MB in the beginning and 119.5 MB in the end (delta: 27.3 MB). Free memory was 60.6 MB in the beginning and 65.1 MB in the end (delta: -4.5 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. * Witness Printer took 5.42 ms. Allocated memory is still 119.5 MB. Free memory is still 65.1 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 + 79 and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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, 5 SDslu, 6 SDs, 0 SdLazy, 7 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax100 hnf100 lsp76 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 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...