./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/ldv-regression/test_while_int.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bf70cecb-8c04-4b00-b262-3a733845ed2a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_bf70cecb-8c04-4b00-b262-3a733845ed2a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bf70cecb-8c04-4b00-b262-3a733845ed2a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bf70cecb-8c04-4b00-b262-3a733845ed2a/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-regression/test_while_int.i -s /tmp/vcloud-vcloud-master/worker/run_dir_bf70cecb-8c04-4b00-b262-3a733845ed2a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bf70cecb-8c04-4b00-b262-3a733845ed2a/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 32bit --witnessprinter.graph.data.programhash c7eba07debb0aad75be3d6c81175278352db792c ......................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:55:17,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:55:17,098 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:55:17,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:55:17,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:55:17,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:55:17,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:55:17,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:55:17,168 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:55:17,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:55:17,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:55:17,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:55:17,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:55:17,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:55:17,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:55:17,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:55:17,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:55:17,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:55:17,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:55:17,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:55:17,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:55:17,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:55:17,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:55:17,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:55:17,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:55:17,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:55:17,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:55:17,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:55:17,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:55:17,225 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:55:17,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:55:17,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:55:17,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:55:17,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:55:17,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:55:17,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:55:17,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:55:17,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:55:17,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:55:17,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:55:17,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:55:17,236 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bf70cecb-8c04-4b00-b262-3a733845ed2a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:55:17,279 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:55:17,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:55:17,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:55:17,280 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:55:17,280 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:55:17,281 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:55:17,281 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:55:17,281 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:55:17,281 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:55:17,281 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:55:17,285 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:55:17,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:55:17,286 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:55:17,286 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:55:17,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:55:17,286 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:55:17,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:55:17,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:55:17,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:55:17,287 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:55:17,287 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:55:17,287 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:55:17,287 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:55:17,288 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:55:17,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:55:17,288 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:55:17,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:55:17,289 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:55:17,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:55:17,289 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:55:17,289 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:55:17,290 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:55:17,291 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:55:17,291 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_bf70cecb-8c04-4b00-b262-3a733845ed2a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bf70cecb-8c04-4b00-b262-3a733845ed2a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7eba07debb0aad75be3d6c81175278352db792c [2020-11-30 00:55:17,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:55:17,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:55:17,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:55:17,614 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:55:17,615 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:55:17,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bf70cecb-8c04-4b00-b262-3a733845ed2a/bin/uautomizer/../../sv-benchmarks/c/ldv-regression/test_while_int.i [2020-11-30 00:55:17,727 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bf70cecb-8c04-4b00-b262-3a733845ed2a/bin/uautomizer/data/b6bbc5f55/f59313c52b24404c80d51923314cbe1a/FLAG91f5a8545 [2020-11-30 00:55:18,284 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:55:18,284 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bf70cecb-8c04-4b00-b262-3a733845ed2a/sv-benchmarks/c/ldv-regression/test_while_int.i [2020-11-30 00:55:18,289 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bf70cecb-8c04-4b00-b262-3a733845ed2a/bin/uautomizer/data/b6bbc5f55/f59313c52b24404c80d51923314cbe1a/FLAG91f5a8545 [2020-11-30 00:55:18,695 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bf70cecb-8c04-4b00-b262-3a733845ed2a/bin/uautomizer/data/b6bbc5f55/f59313c52b24404c80d51923314cbe1a [2020-11-30 00:55:18,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:55:18,699 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:55:18,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:55:18,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:55:18,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:55:18,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:55:18" (1/1) ... [2020-11-30 00:55:18,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eb93f1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:18, skipping insertion in model container [2020-11-30 00:55:18,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:55:18" (1/1) ... [2020-11-30 00:55:18,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:55:18,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:55:18,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:55:18,931 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:55:18,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:55:18,969 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:55:18,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:18 WrapperNode [2020-11-30 00:55:18,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:55:18,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:55:18,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:55:18,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:55:18,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:18" (1/1) ... [2020-11-30 00:55:18,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:18" (1/1) ... [2020-11-30 00:55:19,003 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:55:19,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:55:19,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:55:19,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:55:19,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:18" (1/1) ... [2020-11-30 00:55:19,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:18" (1/1) ... [2020-11-30 00:55:19,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:18" (1/1) ... [2020-11-30 00:55:19,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:18" (1/1) ... [2020-11-30 00:55:19,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:18" (1/1) ... [2020-11-30 00:55:19,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:18" (1/1) ... [2020-11-30 00:55:19,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:18" (1/1) ... [2020-11-30 00:55:19,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:55:19,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:55:19,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:55:19,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:55:19,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf70cecb-8c04-4b00-b262-3a733845ed2a/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:55:19,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:55:19,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:55:19,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:55:19,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:55:19,274 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:55:19,274 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-11-30 00:55:19,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:55:19 BoogieIcfgContainer [2020-11-30 00:55:19,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:55:19,277 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:55:19,277 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:55:19,290 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:55:19,291 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:55:19,291 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:55:18" (1/3) ... [2020-11-30 00:55:19,293 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13dba994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:55:19, skipping insertion in model container [2020-11-30 00:55:19,293 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:55:19,293 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:18" (2/3) ... [2020-11-30 00:55:19,294 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13dba994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:55:19, skipping insertion in model container [2020-11-30 00:55:19,294 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:55:19,294 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:55:19" (3/3) ... [2020-11-30 00:55:19,296 INFO L373 chiAutomizerObserver]: Analyzing ICFG test_while_int.i [2020-11-30 00:55:19,376 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:55:19,376 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:55:19,376 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:55:19,376 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:55:19,376 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:55:19,376 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:55:19,377 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:55:19,377 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:55:19,389 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2020-11-30 00:55:19,411 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-30 00:55:19,411 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:55:19,411 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:55:19,431 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-30 00:55:19,431 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:55:19,431 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:55:19,431 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2020-11-30 00:55:19,438 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-30 00:55:19,438 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:55:19,439 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:55:19,439 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-30 00:55:19,439 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:55:19,446 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(17);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 3#L-1true havoc main_#res;havoc main_#t~post7, main_~i~0;main_~i~0 := 0; 5#L6true [2020-11-30 00:55:19,446 INFO L796 eck$LassoCheckResult]: Loop: 5#L6true assume !!(main_~i~0 < 5);main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7;check_error_#in~b := (if 3 != main_~i~0 then 1 else 0);havoc check_error_~b;check_error_~b := check_error_#in~b; 12#L20true assume 0 != check_error_~b; 5#L6true [2020-11-30 00:55:19,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:19,452 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-11-30 00:55:19,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:19,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23822702] [2020-11-30 00:55:19,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:19,553 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:19,572 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:19,593 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:55:19,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:19,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 1 times [2020-11-30 00:55:19,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:19,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160364904] [2020-11-30 00:55:19,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:19,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:19,612 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:19,618 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:19,621 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:55:19,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:19,624 INFO L82 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2020-11-30 00:55:19,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:19,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716045864] [2020-11-30 00:55:19,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:19,644 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:19,660 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:19,665 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:55:19,865 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:55:19,866 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:55:19,866 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:55:19,867 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:55:19,867 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 00:55:19,867 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:55:19,867 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:55:19,867 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:55:19,868 INFO L133 ssoRankerPreferences]: Filename of dumped script: test_while_int.i_Iteration1_Loop [2020-11-30 00:55:19,868 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:55:19,868 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:55:19,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:55:19,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:55:19,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:55:20,097 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 16 [2020-11-30 00:55:20,107 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:55:20,107 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf70cecb-8c04-4b00-b262-3a733845ed2a/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:55:20,121 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:55:20,121 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:55:20,132 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:55:20,132 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7=0} Honda state: {ULTIMATE.start_main_#t~post7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf70cecb-8c04-4b00-b262-3a733845ed2a/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) [2020-11-30 00:55:20,180 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:55:20,180 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 [2020-11-30 00:55:20,191 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:55:20,191 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_check_error_#in~b=1, ULTIMATE.start_check_error_~b=1} Honda state: {ULTIMATE.start_check_error_#in~b=1, ULTIMATE.start_check_error_~b=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf70cecb-8c04-4b00-b262-3a733845ed2a/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:55:20,242 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:55:20,242 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf70cecb-8c04-4b00-b262-3a733845ed2a/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) [2020-11-30 00:55:20,295 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 00:55:20,296 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:55:20,420 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-30 00:55:20,424 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:55:20,424 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:55:20,424 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:55:20,424 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:55:20,424 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:55:20,425 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:55:20,425 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:55:20,425 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:55:20,425 INFO L133 ssoRankerPreferences]: Filename of dumped script: test_while_int.i_Iteration1_Loop [2020-11-30 00:55:20,425 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:55:20,425 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:55:20,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:55:20,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:55:20,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:55:20,582 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:55:20,588 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf70cecb-8c04-4b00-b262-3a733845ed2a/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) [2020-11-30 00:55:20,594 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:55:20,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:55:20,597 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:55:20,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:55:20,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:55:20,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:55:20,603 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:55:20,604 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 [2020-11-30 00:55:20,606 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf70cecb-8c04-4b00-b262-3a733845ed2a/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) [2020-11-30 00:55:20,650 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 Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:55:20,652 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:55:20,652 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:55:20,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:55:20,653 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-30 00:55:20,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:55:20,656 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-30 00:55:20,656 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:55:20,686 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:55:20,691 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-30 00:55:20,691 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_bf70cecb-8c04-4b00-b262-3a733845ed2a/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:55:20,703 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:55:20,703 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-30 00:55:20,703 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:55:20,704 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 9 Supporting invariants [] Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:55:20,741 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-30 00:55:20,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:55:20,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:55:20,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:55:20,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:55:20,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:55:20,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:55:20,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:55:20,921 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-30 00:55:20,923 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 3 states. [2020-11-30 00:55:20,965 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 3 states. Result 25 states and 32 transitions. Complement of second has 5 states. [2020-11-30 00:55:20,966 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 [2020-11-30 00:55:20,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:55:20,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2020-11-30 00:55:20,970 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 2 letters. Loop has 2 letters. [2020-11-30 00:55:20,971 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:55:20,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-30 00:55:20,971 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:55:20,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 2 letters. Loop has 4 letters. [2020-11-30 00:55:20,972 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:55:20,972 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 32 transitions. [2020-11-30 00:55:20,975 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:55:20,978 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 0 states and 0 transitions. [2020-11-30 00:55:20,979 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 00:55:20,979 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 00:55:20,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 00:55:20,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:55:20,980 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:55:20,980 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:55:20,981 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:55:20,981 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:55:20,981 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:55:20,981 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:55:20,981 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-30 00:55:20,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:55:20 BoogieIcfgContainer [2020-11-30 00:55:20,987 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:55:20,988 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:55:20,988 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:55:20,988 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:55:20,988 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:55:19" (3/4) ... [2020-11-30 00:55:20,992 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:55:20,992 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:55:20,993 INFO L168 Benchmark]: Toolchain (without parser) took 2293.83 ms. Allocated memory is still 90.2 MB. Free memory was 57.6 MB in the beginning and 48.9 MB in the end (delta: 8.7 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:55:20,994 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 71.3 MB. Free memory was 46.8 MB in the beginning and 46.8 MB in the end (delta: 27.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:55:20,995 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.58 ms. Allocated memory is still 90.2 MB. Free memory was 57.4 MB in the beginning and 68.7 MB in the end (delta: -11.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:55:20,995 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.75 ms. Allocated memory is still 90.2 MB. Free memory was 68.7 MB in the beginning and 67.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:55:20,996 INFO L168 Benchmark]: Boogie Preprocessor took 20.61 ms. Allocated memory is still 90.2 MB. Free memory was 67.5 MB in the beginning and 66.5 MB in the end (delta: 961.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:55:20,997 INFO L168 Benchmark]: RCFGBuilder took 250.05 ms. Allocated memory is still 90.2 MB. Free memory was 66.5 MB in the beginning and 56.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:55:20,997 INFO L168 Benchmark]: BuchiAutomizer took 1710.43 ms. Allocated memory is still 90.2 MB. Free memory was 56.5 MB in the beginning and 49.4 MB in the end (delta: 7.0 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:55:20,998 INFO L168 Benchmark]: Witness Printer took 4.19 ms. Allocated memory is still 90.2 MB. Free memory was 49.4 MB in the beginning and 48.9 MB in the end (delta: 518.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:55:21,002 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 71.3 MB. Free memory was 46.8 MB in the beginning and 46.8 MB in the end (delta: 27.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 255.58 ms. Allocated memory is still 90.2 MB. Free memory was 57.4 MB in the beginning and 68.7 MB in the end (delta: -11.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.75 ms. Allocated memory is still 90.2 MB. Free memory was 68.7 MB in the beginning and 67.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.61 ms. Allocated memory is still 90.2 MB. Free memory was 67.5 MB in the beginning and 66.5 MB in the end (delta: 961.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 250.05 ms. Allocated memory is still 90.2 MB. Free memory was 66.5 MB in the beginning and 56.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1710.43 ms. Allocated memory is still 90.2 MB. Free memory was 56.5 MB in the beginning and 49.4 MB in the end (delta: 7.0 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.19 ms. Allocated memory is still 90.2 MB. Free memory was 49.4 MB in the beginning and 48.9 MB in the end (delta: 518.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 9 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 0.2s. 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: 7 SDtfs, 7 SDslu, 5 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp69 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf95 smp100 dnf165 smp92 tf105 neg94 sie117 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 61ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...