./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrncmp-alloca-1.i --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_ce4d039e-4925-47e9-a2b8-94ffef3693da/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ce4d039e-4925-47e9-a2b8-94ffef3693da/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ce4d039e-4925-47e9-a2b8-94ffef3693da/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ce4d039e-4925-47e9-a2b8-94ffef3693da/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrncmp-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ce4d039e-4925-47e9-a2b8-94ffef3693da/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ce4d039e-4925-47e9-a2b8-94ffef3693da/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 28df36858bcf0d10e60c800fcc2b4034b3218824 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:48:50,801 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:48:50,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:48:50,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:48:50,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:48:50,893 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:48:50,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:48:50,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:48:50,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:48:50,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:48:50,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:48:50,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:48:50,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:48:50,937 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:48:50,939 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:48:50,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:48:50,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:48:50,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:48:50,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:48:50,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:48:50,967 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:48:50,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:48:50,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:48:50,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:48:50,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:48:50,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:48:50,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:48:50,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:48:50,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:48:50,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:48:50,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:48:50,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:48:51,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:48:51,002 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:48:51,005 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:48:51,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:48:51,007 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:48:51,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:48:51,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:48:51,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:48:51,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:48:51,017 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ce4d039e-4925-47e9-a2b8-94ffef3693da/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 18:48:51,081 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:48:51,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:48:51,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:48:51,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:48:51,084 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:48:51,084 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 18:48:51,085 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 18:48:51,085 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 18:48:51,085 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 18:48:51,086 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 18:48:51,086 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 18:48:51,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:48:51,087 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:48:51,087 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:48:51,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:48:51,088 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 18:48:51,088 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 18:48:51,088 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 18:48:51,089 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:48:51,089 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 18:48:51,089 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:48:51,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 18:48:51,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:48:51,090 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:48:51,091 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 18:48:51,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:48:51,091 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:48:51,092 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:48:51,092 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 18:48:51,094 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 18:48:51,094 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_ce4d039e-4925-47e9-a2b8-94ffef3693da/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ce4d039e-4925-47e9-a2b8-94ffef3693da/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 28df36858bcf0d10e60c800fcc2b4034b3218824 [2020-11-29 18:48:51,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:48:51,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:48:51,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:48:51,473 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:48:51,474 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:48:51,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ce4d039e-4925-47e9-a2b8-94ffef3693da/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrncmp-alloca-1.i [2020-11-29 18:48:51,583 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ce4d039e-4925-47e9-a2b8-94ffef3693da/bin/uautomizer/data/7cacc7d4a/707fe70ff4c94f39a926964b4f8fb9cd/FLAG0462a91cb [2020-11-29 18:48:52,264 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:48:52,265 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ce4d039e-4925-47e9-a2b8-94ffef3693da/sv-benchmarks/c/termination-memory-alloca/openbsd_cstrncmp-alloca-1.i [2020-11-29 18:48:52,285 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ce4d039e-4925-47e9-a2b8-94ffef3693da/bin/uautomizer/data/7cacc7d4a/707fe70ff4c94f39a926964b4f8fb9cd/FLAG0462a91cb [2020-11-29 18:48:52,546 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ce4d039e-4925-47e9-a2b8-94ffef3693da/bin/uautomizer/data/7cacc7d4a/707fe70ff4c94f39a926964b4f8fb9cd [2020-11-29 18:48:52,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:48:52,552 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:48:52,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:48:52,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:48:52,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:48:52,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:48:52" (1/1) ... [2020-11-29 18:48:52,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1268bc2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:52, skipping insertion in model container [2020-11-29 18:48:52,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:48:52" (1/1) ... [2020-11-29 18:48:52,586 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:48:52,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:48:53,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:48:53,054 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:48:53,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:48:53,227 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:48:53,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:53 WrapperNode [2020-11-29 18:48:53,228 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:48:53,230 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:48:53,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:48:53,231 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:48:53,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:53" (1/1) ... [2020-11-29 18:48:53,278 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:53" (1/1) ... [2020-11-29 18:48:53,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:48:53,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:48:53,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:48:53,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:48:53,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:53" (1/1) ... [2020-11-29 18:48:53,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:53" (1/1) ... [2020-11-29 18:48:53,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:53" (1/1) ... [2020-11-29 18:48:53,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:53" (1/1) ... [2020-11-29 18:48:53,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:53" (1/1) ... [2020-11-29 18:48:53,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:53" (1/1) ... [2020-11-29 18:48:53,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:53" (1/1) ... [2020-11-29 18:48:53,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:48:53,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:48:53,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:48:53,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:48:53,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce4d039e-4925-47e9-a2b8-94ffef3693da/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:48:53,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 18:48:53,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 18:48:53,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:48:53,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 18:48:53,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:48:53,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:48:54,123 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:48:54,123 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-29 18:48:54,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:48:54 BoogieIcfgContainer [2020-11-29 18:48:54,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:48:54,129 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 18:48:54,130 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 18:48:54,134 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 18:48:54,135 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:48:54,135 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:48:52" (1/3) ... [2020-11-29 18:48:54,137 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6e4ecd43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:48:54, skipping insertion in model container [2020-11-29 18:48:54,137 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:48:54,137 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:53" (2/3) ... [2020-11-29 18:48:54,138 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6e4ecd43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:48:54, skipping insertion in model container [2020-11-29 18:48:54,138 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:48:54,138 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:48:54" (3/3) ... [2020-11-29 18:48:54,140 INFO L373 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrncmp-alloca-1.i [2020-11-29 18:48:54,231 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 18:48:54,231 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 18:48:54,231 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 18:48:54,231 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:48:54,231 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:48:54,232 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 18:48:54,232 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:48:54,232 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 18:48:54,272 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-11-29 18:48:54,301 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-29 18:48:54,301 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:48:54,301 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:48:54,310 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:48:54,310 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-29 18:48:54,310 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 18:48:54,311 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-11-29 18:48:54,316 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-29 18:48:54,324 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:48:54,325 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:48:54,325 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:48:54,325 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-29 18:48:54,332 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet15, main_#t~ret16, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 11#L563true assume !(main_~length1~0 < 1); 15#L563-2true assume !(main_~length2~0 < 1); 7#L566-1true call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_#t~nondet15;havoc cstrncmp_#res;havoc cstrncmp_#t~mem4, cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset, cstrncmp_#t~mem5, cstrncmp_#t~mem7, cstrncmp_#t~pre6.base, cstrncmp_#t~pre6.offset, cstrncmp_#t~mem8, cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset, cstrncmp_#t~mem10, cstrncmp_#t~pre2, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n; 16#L550true assume !(0 == cstrncmp_~n % 4294967296); 3#L552-4true [2020-11-29 18:48:54,333 INFO L796 eck$LassoCheckResult]: Loop: 3#L552-4true call cstrncmp_#t~mem4 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post3.base, 1 + cstrncmp_#t~post3.offset;call cstrncmp_#t~mem5 := read~int(cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset, 1); 9#L553true assume !(cstrncmp_#t~mem4 != cstrncmp_#t~mem5);havoc cstrncmp_#t~mem5;havoc cstrncmp_#t~mem4;havoc cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset;cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset := cstrncmp_~s1.base, cstrncmp_~s1.offset;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#t~post9.base, 1 + cstrncmp_#t~post9.offset;call cstrncmp_#t~mem10 := read~int(cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset, 1); 6#L555true assume !(0 == cstrncmp_#t~mem10);havoc cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset;havoc cstrncmp_#t~mem10; 13#L552-1true cstrncmp_#t~pre2 := cstrncmp_~n - 1;cstrncmp_~n := cstrncmp_~n - 1; 17#L552-2true assume !!(0 != cstrncmp_#t~pre2 % 4294967296);havoc cstrncmp_#t~pre2; 3#L552-4true [2020-11-29 18:48:54,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:48:54,341 INFO L82 PathProgramCache]: Analyzing trace with hash 889572238, now seen corresponding path program 1 times [2020-11-29 18:48:54,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:48:54,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282213189] [2020-11-29 18:48:54,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:48:54,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:48:54,573 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:48:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:48:54,647 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:48:54,689 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:48:54,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:48:54,694 INFO L82 PathProgramCache]: Analyzing trace with hash 51691425, now seen corresponding path program 1 times [2020-11-29 18:48:54,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:48:54,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676860520] [2020-11-29 18:48:54,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:48:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:48:54,757 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:48:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:48:54,806 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:48:54,815 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:48:54,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:48:54,818 INFO L82 PathProgramCache]: Analyzing trace with hash -2121194444, now seen corresponding path program 1 times [2020-11-29 18:48:54,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:48:54,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360013898] [2020-11-29 18:48:54,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:48:54,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:48:54,924 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:48:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:48:55,028 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:48:55,057 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:48:55,538 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2020-11-29 18:48:56,236 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 89 [2020-11-29 18:48:56,440 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-11-29 18:48:56,461 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:48:56,462 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:48:56,462 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:48:56,462 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:48:56,463 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:48:56,463 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:48:56,463 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:48:56,463 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:48:56,463 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncmp-alloca-1.i_Iteration1_Lasso [2020-11-29 18:48:56,464 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:48:56,465 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:48:56,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:48:56,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:48:56,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:48:56,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:48:56,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:48:56,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:48:56,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:48:56,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:48:56,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:48:57,219 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2020-11-29 18:48:57,613 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2020-11-29 18:48:57,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:48:57,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:48:57,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:48:57,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:48:57,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:48:57,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:48:57,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:48:57,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:48:57,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:48:57,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:48:57,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:48:57,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:48:57,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:48:57,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:48:57,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:48:57,964 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2020-11-29 18:48:58,081 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-11-29 18:48:58,459 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2020-11-29 18:48:58,769 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2020-11-29 18:48:59,194 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:48:59,200 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce4d039e-4925-47e9-a2b8-94ffef3693da/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:48:59,223 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:48:59,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:48:59,227 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:48:59,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:48:59,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:48:59,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:48:59,231 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:48:59,231 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:48:59,234 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce4d039e-4925-47e9-a2b8-94ffef3693da/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:48:59,289 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:48:59,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:48:59,291 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:48:59,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:48:59,292 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:48:59,292 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:48:59,293 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:48:59,293 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:48:59,295 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce4d039e-4925-47e9-a2b8-94ffef3693da/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:48:59,325 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:48:59,327 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:48:59,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:48:59,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:48:59,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:48:59,333 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:48:59,333 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:48:59,341 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce4d039e-4925-47e9-a2b8-94ffef3693da/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:48:59,377 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 [2020-11-29 18:48:59,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:48:59,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:48:59,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:48:59,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:48:59,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:48:59,380 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:48:59,381 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:48:59,398 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce4d039e-4925-47e9-a2b8-94ffef3693da/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:48:59,436 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:48:59,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:48:59,438 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:48:59,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:48:59,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:48:59,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:48:59,450 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:48:59,450 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:48:59,458 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce4d039e-4925-47e9-a2b8-94ffef3693da/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) [2020-11-29 18:48:59,509 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 [2020-11-29 18:48:59,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:48:59,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:48:59,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:48:59,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:48:59,521 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:48:59,521 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:48:59,532 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce4d039e-4925-47e9-a2b8-94ffef3693da/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:48:59,567 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:48:59,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:48:59,569 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:48:59,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:48:59,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:48:59,570 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:48:59,570 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:48:59,570 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:48:59,572 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce4d039e-4925-47e9-a2b8-94ffef3693da/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:48:59,609 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:48:59,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:48:59,611 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:48:59,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:48:59,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:48:59,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:48:59,612 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:48:59,612 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:48:59,613 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce4d039e-4925-47e9-a2b8-94ffef3693da/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:48:59,643 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:48:59,645 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:48:59,645 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:48:59,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:48:59,646 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 18:48:59,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:48:59,650 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:48:59,650 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:48:59,654 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce4d039e-4925-47e9-a2b8-94ffef3693da/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:48:59,686 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:48:59,689 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:48:59,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:48:59,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:48:59,690 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:48:59,744 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:48:59,744 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:48:59,780 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:49:00,145 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2020-11-29 18:49:00,145 INFO L444 ModelExtractionUtils]: 10 out of 46 variables were initially zero. Simplification set additionally 33 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce4d039e-4925-47e9-a2b8-94ffef3693da/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:49:00,162 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:49:00,168 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 18:49:00,169 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:49:00,170 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncmp_~s2.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_1) = -1*ULTIMATE.start_cstrncmp_~s2.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_1 Supporting invariants [] [2020-11-29 18:49:00,335 INFO L297 tatePredicateManager]: 16 out of 18 supporting invariants were superfluous and have been removed [2020-11-29 18:49:00,348 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 18:49:00,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:00,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:49:00,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 24 conjunts are in the unsatisfiable core [2020-11-29 18:49:00,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:49:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:49:00,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 19 conjunts are in the unsatisfiable core [2020-11-29 18:49:00,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:49:00,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:49:00,646 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2020-11-29 18:49:00,648 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 5 states. [2020-11-29 18:49:00,776 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 5 states. Result 29 states and 36 transitions. Complement of second has 6 states. [2020-11-29 18:49:00,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 0 non-accepting loop states 2 accepting loop states [2020-11-29 18:49:00,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 18:49:00,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2020-11-29 18:49:00,786 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 6 letters. Loop has 5 letters. [2020-11-29 18:49:00,788 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:49:00,788 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 18:49:00,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:49:00,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:49:00,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 24 conjunts are in the unsatisfiable core [2020-11-29 18:49:00,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:49:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:49:00,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 19 conjunts are in the unsatisfiable core [2020-11-29 18:49:00,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:49:01,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:49:01,068 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 3 loop predicates [2020-11-29 18:49:01,068 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 5 states. [2020-11-29 18:49:01,219 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 5 states. Result 34 states and 41 transitions. Complement of second has 11 states. [2020-11-29 18:49:01,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2020-11-29 18:49:01,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 18:49:01,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 26 transitions. [2020-11-29 18:49:01,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 26 transitions. Stem has 6 letters. Loop has 5 letters. [2020-11-29 18:49:01,223 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:49:01,223 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 26 transitions. Stem has 11 letters. Loop has 5 letters. [2020-11-29 18:49:01,223 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:49:01,223 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 26 transitions. Stem has 6 letters. Loop has 10 letters. [2020-11-29 18:49:01,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:49:01,225 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 41 transitions. [2020-11-29 18:49:01,228 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 18:49:01,234 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 0 states and 0 transitions. [2020-11-29 18:49:01,236 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 18:49:01,236 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 18:49:01,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 18:49:01,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:49:01,237 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:49:01,238 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:49:01,238 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:49:01,238 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 18:49:01,245 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 18:49:01,245 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 18:49:01,246 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 18:49:01,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:49:01 BoogieIcfgContainer [2020-11-29 18:49:01,255 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 18:49:01,256 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:49:01,256 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:49:01,256 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:49:01,257 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:48:54" (3/4) ... [2020-11-29 18:49:01,261 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 18:49:01,261 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:49:01,263 INFO L168 Benchmark]: Toolchain (without parser) took 8710.70 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 56.3 MB in the beginning and 89.9 MB in the end (delta: -33.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:49:01,264 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 88.1 MB. Free memory was 47.8 MB in the beginning and 47.8 MB in the end (delta: 34.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:49:01,265 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.14 ms. Allocated memory is still 88.1 MB. Free memory was 56.1 MB in the beginning and 54.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:49:01,266 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.31 ms. Allocated memory is still 88.1 MB. Free memory was 54.6 MB in the beginning and 52.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:49:01,267 INFO L168 Benchmark]: Boogie Preprocessor took 35.75 ms. Allocated memory is still 88.1 MB. Free memory was 52.6 MB in the beginning and 51.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:49:01,268 INFO L168 Benchmark]: RCFGBuilder took 782.18 ms. Allocated memory is still 88.1 MB. Free memory was 51.5 MB in the beginning and 35.4 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:49:01,269 INFO L168 Benchmark]: BuchiAutomizer took 7125.93 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 35.4 MB in the beginning and 90.9 MB in the end (delta: -55.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:49:01,269 INFO L168 Benchmark]: Witness Printer took 5.25 ms. Allocated memory is still 130.0 MB. Free memory is still 89.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:49:01,273 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 88.1 MB. Free memory was 47.8 MB in the beginning and 47.8 MB in the end (delta: 34.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 673.14 ms. Allocated memory is still 88.1 MB. Free memory was 56.1 MB in the beginning and 54.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.31 ms. Allocated memory is still 88.1 MB. Free memory was 54.6 MB in the beginning and 52.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.75 ms. Allocated memory is still 88.1 MB. Free memory was 52.6 MB in the beginning and 51.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 782.18 ms. Allocated memory is still 88.1 MB. Free memory was 51.5 MB in the beginning and 35.4 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 7125.93 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 35.4 MB in the beginning and 90.9 MB in the end (delta: -55.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.25 ms. Allocated memory is still 130.0 MB. Free memory is still 89.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * 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 -1 * s2 + unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] and consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 6.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. 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 [0, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 28 SDtfs, 31 SDslu, 19 SDs, 0 SdLazy, 30 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital236 mio100 ax107 hnf99 lsp80 ukn89 mio100 lsp48 div117 bol100 ite100 ukn100 eq168 hnf84 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...