./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-dietlibc/strrchr_short.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_345e6c4b-1fa0-44e4-b988-c4c8aada470c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-dietlibc/strrchr_short.i -s /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/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 98f62af880b69d3051603379cc048811fab2d4d7 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 19:29:31,949 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:29:31,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:29:32,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:29:32,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:29:32,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:29:32,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:29:32,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:29:32,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:29:32,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:29:32,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:29:32,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:29:32,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:29:32,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:29:32,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:29:32,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:29:32,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:29:32,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:29:32,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:29:32,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:29:32,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:29:32,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:29:32,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:29:32,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:29:32,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:29:32,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:29:32,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:29:32,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:29:32,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:29:32,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:29:32,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:29:32,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:29:32,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:29:32,127 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:29:32,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:29:32,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:29:32,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:29:32,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:29:32,132 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:29:32,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:29:32,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:29:32,136 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 19:29:32,183 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:29:32,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:29:32,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:29:32,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:29:32,186 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:29:32,186 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:29:32,186 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:29:32,186 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:29:32,187 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:29:32,187 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:29:32,187 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:29:32,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:29:32,188 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:29:32,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:29:32,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:29:32,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:29:32,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:29:32,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:29:32,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:29:32,193 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:29:32,193 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:29:32,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:29:32,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:29:32,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:29:32,195 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:29:32,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:29:32,196 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:29:32,196 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:29:32,197 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:29:32,198 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:29:32,199 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_345e6c4b-1fa0-44e4-b988-c4c8aada470c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98f62af880b69d3051603379cc048811fab2d4d7 [2020-11-29 19:29:32,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:29:32,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:29:32,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:29:32,571 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:29:32,572 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:29:32,573 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/bin/uautomizer/../../sv-benchmarks/c/termination-dietlibc/strrchr_short.i [2020-11-29 19:29:32,655 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/bin/uautomizer/data/00b771c4d/7d5646b5fb774c6dbc59781a4f0855ab/FLAG4974b4ef3 [2020-11-29 19:29:33,318 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:29:33,318 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/sv-benchmarks/c/termination-dietlibc/strrchr_short.i [2020-11-29 19:29:33,342 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/bin/uautomizer/data/00b771c4d/7d5646b5fb774c6dbc59781a4f0855ab/FLAG4974b4ef3 [2020-11-29 19:29:33,571 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/bin/uautomizer/data/00b771c4d/7d5646b5fb774c6dbc59781a4f0855ab [2020-11-29 19:29:33,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:29:33,576 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:29:33,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:29:33,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:29:33,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:29:33,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:29:33" (1/1) ... [2020-11-29 19:29:33,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38424381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:33, skipping insertion in model container [2020-11-29 19:29:33,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:29:33" (1/1) ... [2020-11-29 19:29:33,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:29:33,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:29:34,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:29:34,233 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:29:34,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:29:34,396 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:29:34,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:34 WrapperNode [2020-11-29 19:29:34,397 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:29:34,400 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:29:34,400 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:29:34,401 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:29:34,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:34" (1/1) ... [2020-11-29 19:29:34,430 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:34" (1/1) ... [2020-11-29 19:29:34,454 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:29:34,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:29:34,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:29:34,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:29:34,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:34" (1/1) ... [2020-11-29 19:29:34,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:34" (1/1) ... [2020-11-29 19:29:34,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:34" (1/1) ... [2020-11-29 19:29:34,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:34" (1/1) ... [2020-11-29 19:29:34,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:34" (1/1) ... [2020-11-29 19:29:34,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:34" (1/1) ... [2020-11-29 19:29:34,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:34" (1/1) ... [2020-11-29 19:29:34,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:29:34,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:29:34,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:29:34,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:29:34,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/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 19:29:34,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 19:29:34,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 19:29:34,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:29:34,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:29:34,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:29:34,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:29:34,910 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:29:34,910 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-29 19:29:34,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:29:34 BoogieIcfgContainer [2020-11-29 19:29:34,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:29:34,914 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:29:34,914 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:29:34,918 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:29:34,919 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:29:34,920 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:29:33" (1/3) ... [2020-11-29 19:29:34,921 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@394cd28f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:29:34, skipping insertion in model container [2020-11-29 19:29:34,922 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:29:34,922 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:34" (2/3) ... [2020-11-29 19:29:34,923 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@394cd28f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:29:34, skipping insertion in model container [2020-11-29 19:29:34,923 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:29:34,923 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:29:34" (3/3) ... [2020-11-29 19:29:34,925 INFO L373 chiAutomizerObserver]: Analyzing ICFG strrchr_short.i [2020-11-29 19:29:35,004 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:29:35,005 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:29:35,005 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:29:35,005 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:29:35,022 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:29:35,022 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:29:35,022 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:29:35,022 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:29:35,037 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-11-29 19:29:35,059 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 19:29:35,060 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:29:35,060 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:29:35,067 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-29 19:29:35,068 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 19:29:35,068 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:29:35,068 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-11-29 19:29:35,070 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 19:29:35,070 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:29:35,070 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:29:35,071 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-29 19:29:35,071 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 19:29:35,081 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~ret8.base, main_#t~ret8.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~the_int~0;main_~in_len~0 := main_#t~nondet5;havoc main_#t~nondet5; 13#L517true assume !(main_~in_len~0 < 1);call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~the_int~0 := main_#t~nondet7;havoc main_#t~nondet7;strrchr_#in~t.base, strrchr_#in~t.offset, strrchr_#in~c := main_~in~0.base, main_~in~0.offset, main_~the_int~0;havoc strrchr_#res.base, strrchr_#res.offset;havoc strrchr_#t~mem2, strrchr_#t~mem3, strrchr_#t~pre4.base, strrchr_#t~pre4.offset, strrchr_~t.base, strrchr_~t.offset, strrchr_~c, strrchr_~ch~0, strrchr_~l~0.base, strrchr_~l~0.offset;strrchr_~t.base, strrchr_~t.offset := strrchr_#in~t.base, strrchr_#in~t.offset;strrchr_~c := strrchr_#in~c;havoc strrchr_~ch~0;strrchr_~l~0.base, strrchr_~l~0.offset := 0, 0;strrchr_~ch~0 := (if strrchr_~c % 256 <= 127 then strrchr_~c % 256 else strrchr_~c % 256 - 256); 7#L510-2true [2020-11-29 19:29:35,081 INFO L796 eck$LassoCheckResult]: Loop: 7#L510-2true assume !false;call strrchr_#t~mem2 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 14#L511true assume strrchr_#t~mem2 == strrchr_~ch~0;havoc strrchr_#t~mem2;strrchr_~l~0.base, strrchr_~l~0.offset := strrchr_~t.base, strrchr_~t.offset; 6#L511-2true call strrchr_#t~mem3 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 9#L511-3true assume !(0 == strrchr_#t~mem3);havoc strrchr_#t~mem3;strrchr_#t~pre4.base, strrchr_#t~pre4.offset := strrchr_~t.base, 1 + strrchr_~t.offset;strrchr_~t.base, strrchr_~t.offset := strrchr_~t.base, 1 + strrchr_~t.offset;havoc strrchr_#t~pre4.base, strrchr_#t~pre4.offset; 7#L510-2true [2020-11-29 19:29:35,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:29:35,092 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2020-11-29 19:29:35,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:29:35,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910463261] [2020-11-29 19:29:35,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:29:35,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:29:35,270 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:29:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:29:35,301 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:29:35,328 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:29:35,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:29:35,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1388393, now seen corresponding path program 1 times [2020-11-29 19:29:35,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:29:35,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015319593] [2020-11-29 19:29:35,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:29:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:29:35,346 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:29:35,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:29:35,356 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:29:35,360 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:29:35,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:29:35,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1806998156, now seen corresponding path program 1 times [2020-11-29 19:29:35,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:29:35,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296472295] [2020-11-29 19:29:35,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:29:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:29:35,408 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:29:35,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:29:35,443 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:29:35,452 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:29:35,901 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2020-11-29 19:29:36,074 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-11-29 19:29:36,092 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:29:36,093 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:29:36,094 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:29:36,094 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:29:36,094 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:29:36,094 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:29:36,095 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:29:36,095 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:29:36,095 INFO L133 ssoRankerPreferences]: Filename of dumped script: strrchr_short.i_Iteration1_Lasso [2020-11-29 19:29:36,095 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:29:36,096 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:29:36,135 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 19:29:36,144 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 19:29:36,152 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 19:29:36,156 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 19:29:36,161 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 19:29:36,167 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 19:29:36,172 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 19:29:36,178 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 19:29:36,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:29:36,189 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 19:29:36,194 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 19:29:36,828 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-11-29 19:29:36,941 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-11-29 19:29:36,942 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 19:29:36,949 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 19:29:36,953 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 19:29:37,645 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2020-11-29 19:29:37,791 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:29:37,797 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:29:37,819 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 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:29:37,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:29:37,827 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:29:37,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:29:37,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:29:37,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:29:37,833 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:29:37,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:29:37,835 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/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) [2020-11-29 19:29:37,888 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 19:29:37,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:29:37,891 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:29:37,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:29:37,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:29:37,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:29:37,895 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:29:37,895 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:29:37,902 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/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) [2020-11-29 19:29:37,953 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 19:29:37,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:29:37,956 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:29:37,956 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:29:37,956 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:29:37,956 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:29:37,960 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:29:37,960 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:29:37,963 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/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) [2020-11-29 19:29:38,014 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 19:29:38,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:29:38,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:29:38,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:29:38,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:29:38,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:29:38,019 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:29:38,019 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:29:38,022 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/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 19:29:38,056 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 19:29:38,058 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:29:38,058 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:29:38,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:29:38,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:29:38,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:29:38,059 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:29:38,059 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:29:38,062 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:29:38,098 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 19:29:38,099 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:29:38,099 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:29:38,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:29:38,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:29:38,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:29:38,101 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:29:38,101 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:29:38,105 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/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 19:29:38,136 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 19:29:38,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:29:38,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:29:38,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:29:38,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:29:38,143 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:29:38,143 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:29:38,147 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/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 19:29:38,180 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 19:29:38,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:29:38,182 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:29:38,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:29:38,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:29:38,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:29:38,182 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:29:38,183 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:29:38,184 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/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 19:29:38,212 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 19:29:38,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:29:38,214 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:29:38,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:29:38,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:29:38,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:29:38,216 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:29:38,216 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:29:38,217 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/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 19:29:38,249 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 19:29:38,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:29:38,251 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:29:38,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:29:38,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:29:38,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:29:38,253 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:29:38,254 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:29:38,255 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:29:38,291 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 19:29:38,293 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:29:38,294 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:29:38,294 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:29:38,294 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:29:38,310 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:29:38,310 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:29:38,326 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:29:38,359 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 19:29:38,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:29:38,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:29:38,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:29:38,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:29:38,367 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:29:38,368 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:29:38,375 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:29:38,404 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 19:29:38,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:29:38,406 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:29:38,406 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:29:38,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:29:38,409 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:29:38,409 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:29:38,446 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:29:38,493 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 19:29:38,495 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:29:38,495 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-29 19:29:38,495 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 19:29:38,495 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:29:38,519 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2020-11-29 19:29:38,520 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-29 19:29:38,554 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:29:38,611 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 19:29:38,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:29:38,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:29:38,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:29:38,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:29:38,633 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:29:38,633 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:29:38,649 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:29:38,942 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-11-29 19:29:38,942 INFO L444 ModelExtractionUtils]: 17 out of 28 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_345e6c4b-1fa0-44e4-b988-c4c8aada470c/bin/uautomizer/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:29:38,987 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 19:29:38,992 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 19:29:38,993 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:29:38,993 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc6.base)_1, ULTIMATE.start_strrchr_~t.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc6.base)_1 - 1*ULTIMATE.start_strrchr_~t.offset Supporting invariants [] [2020-11-29 19:29:39,059 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2020-11-29 19:29:39,069 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:29:39,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:29:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:29:39,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 19:29:39,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:29:39,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:29:39,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 19:29:39,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:29:39,271 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 19:29:39,294 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 [2020-11-29 19:29:39,296 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 3 states. [2020-11-29 19:29:39,392 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 3 states. Result 24 states and 30 transitions. Complement of second has 6 states. [2020-11-29 19:29:39,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 19:29:39,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 19:29:39,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2020-11-29 19:29:39,397 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 4 letters. [2020-11-29 19:29:39,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:29:39,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 4 letters. [2020-11-29 19:29:39,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:29:39,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 8 letters. [2020-11-29 19:29:39,400 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:29:39,401 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 30 transitions. [2020-11-29 19:29:39,404 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:29:39,407 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2020-11-29 19:29:39,409 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 19:29:39,409 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 19:29:39,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 19:29:39,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:29:39,410 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:29:39,410 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:29:39,410 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:29:39,410 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:29:39,411 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:29:39,411 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:29:39,411 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 19:29:39,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:29:39 BoogieIcfgContainer [2020-11-29 19:29:39,417 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:29:39,417 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:29:39,417 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:29:39,418 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:29:39,418 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:29:34" (3/4) ... [2020-11-29 19:29:39,422 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 19:29:39,422 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:29:39,424 INFO L168 Benchmark]: Toolchain (without parser) took 5847.21 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 53.4 MB in the beginning and 88.8 MB in the end (delta: -35.4 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:29:39,424 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 92.3 MB. Free memory was 70.6 MB in the beginning and 70.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:29:39,425 INFO L168 Benchmark]: CACSL2BoogieTranslator took 820.04 ms. Allocated memory is still 92.3 MB. Free memory was 53.2 MB in the beginning and 58.5 MB in the end (delta: -5.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:29:39,426 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.14 ms. Allocated memory is still 92.3 MB. Free memory was 58.5 MB in the beginning and 56.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:29:39,427 INFO L168 Benchmark]: Boogie Preprocessor took 33.14 ms. Allocated memory is still 92.3 MB. Free memory was 56.8 MB in the beginning and 55.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:29:39,428 INFO L168 Benchmark]: RCFGBuilder took 423.84 ms. Allocated memory is still 92.3 MB. Free memory was 55.4 MB in the beginning and 41.7 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:29:39,428 INFO L168 Benchmark]: BuchiAutomizer took 4502.88 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 41.7 MB in the beginning and 88.8 MB in the end (delta: -47.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:29:39,429 INFO L168 Benchmark]: Witness Printer took 4.85 ms. Allocated memory is still 134.2 MB. Free memory is still 88.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:29:39,433 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 92.3 MB. Free memory was 70.6 MB in the beginning and 70.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 820.04 ms. Allocated memory is still 92.3 MB. Free memory was 53.2 MB in the beginning and 58.5 MB in the end (delta: -5.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.14 ms. Allocated memory is still 92.3 MB. Free memory was 58.5 MB in the beginning and 56.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.14 ms. Allocated memory is still 92.3 MB. Free memory was 56.8 MB in the beginning and 55.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 423.84 ms. Allocated memory is still 92.3 MB. Free memory was 55.4 MB in the beginning and 41.7 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4502.88 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 41.7 MB in the beginning and 88.8 MB in the end (delta: -47.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.85 ms. Allocated memory is still 134.2 MB. Free memory is still 88.8 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 unknown-#length-unknown[__builtin_alloca (in_len)] + -1 * t and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. 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: 8 SDtfs, 9 SDslu, 2 SDs, 0 SdLazy, 11 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital159 mio100 ax100 hnf99 lsp110 ukn114 mio100 lsp31 div136 bol100 ite100 ukn100 eq160 hnf72 smp85 dnf235 smp52 tf100 neg98 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 64ms VariablesStem: 6 VariablesLoop: 2 DisjunctsStem: 2 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 20 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...