./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrlen_reverse_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65bcbb3-8641-4522-8b76-8882899132e9/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65bcbb3-8641-4522-8b76-8882899132e9/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65bcbb3-8641-4522-8b76-8882899132e9/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65bcbb3-8641-4522-8b76-8882899132e9/bin/uautomizer-Z5i5R5N3CC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrlen_reverse_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65bcbb3-8641-4522-8b76-8882899132e9/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65bcbb3-8641-4522-8b76-8882899132e9/bin/uautomizer-Z5i5R5N3CC --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 c00c2eb0cef5f2e9aa4da3a7cbfbf681617d72f6 ..................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:27:06,747 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:27:06,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:27:06,793 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:27:06,794 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:27:06,795 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:27:06,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:27:06,800 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:27:06,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:27:06,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:27:06,806 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:27:06,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:27:06,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:27:06,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:27:06,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:27:06,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:27:06,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:27:06,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:27:06,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:27:06,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:27:06,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:27:06,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:27:06,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:27:06,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:27:06,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:27:06,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:27:06,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:27:06,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:27:06,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:27:06,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:27:06,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:27:06,842 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:27:06,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:27:06,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:27:06,846 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:27:06,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:27:06,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:27:06,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:27:06,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:27:06,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:27:06,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:27:06,855 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65bcbb3-8641-4522-8b76-8882899132e9/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-11 00:27:06,905 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:27:06,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:27:06,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:27:06,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:27:06,909 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:27:06,909 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-11 00:27:06,910 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-11 00:27:06,910 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-11 00:27:06,910 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-11 00:27:06,911 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-11 00:27:06,912 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-11 00:27:06,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:27:06,912 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:27:06,913 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:27:06,913 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:27:06,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-11 00:27:06,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-11 00:27:06,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-11 00:27:06,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:27:06,914 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-11 00:27:06,915 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:27:06,915 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-11 00:27:06,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:27:06,915 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:27:06,916 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:27:06,916 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:27:06,916 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:27:06,918 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-11 00:27:06,918 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_worker_vcloud-master_on_vcloud-master/run_dir_b65bcbb3-8641-4522-8b76-8882899132e9/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65bcbb3-8641-4522-8b76-8882899132e9/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c00c2eb0cef5f2e9aa4da3a7cbfbf681617d72f6 [2021-10-11 00:27:07,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:27:07,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:27:07,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:27:07,261 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:27:07,264 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:27:07,266 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65bcbb3-8641-4522-8b76-8882899132e9/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-15/cstrlen_reverse_alloca.i [2021-10-11 00:27:07,348 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65bcbb3-8641-4522-8b76-8882899132e9/bin/uautomizer-Z5i5R5N3CC/data/ec58651ca/a4bbb5c20ece44958202a6a430745ed3/FLAG7bd6788e3 [2021-10-11 00:27:08,020 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:27:08,021 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65bcbb3-8641-4522-8b76-8882899132e9/sv-benchmarks/c/termination-15/cstrlen_reverse_alloca.i [2021-10-11 00:27:08,038 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65bcbb3-8641-4522-8b76-8882899132e9/bin/uautomizer-Z5i5R5N3CC/data/ec58651ca/a4bbb5c20ece44958202a6a430745ed3/FLAG7bd6788e3 [2021-10-11 00:27:08,298 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65bcbb3-8641-4522-8b76-8882899132e9/bin/uautomizer-Z5i5R5N3CC/data/ec58651ca/a4bbb5c20ece44958202a6a430745ed3 [2021-10-11 00:27:08,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:27:08,303 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:27:08,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:27:08,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:27:08,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:27:08,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:27:08" (1/1) ... [2021-10-11 00:27:08,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f8f3711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:08, skipping insertion in model container [2021-10-11 00:27:08,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:27:08" (1/1) ... [2021-10-11 00:27:08,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:27:08,390 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:27:08,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:27:08,891 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:27:08,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:27:09,073 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:27:09,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:09 WrapperNode [2021-10-11 00:27:09,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:27:09,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:27:09,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:27:09,076 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:27:09,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:09" (1/1) ... [2021-10-11 00:27:09,111 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:09" (1/1) ... [2021-10-11 00:27:09,165 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:27:09,168 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:27:09,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:27:09,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:27:09,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:09" (1/1) ... [2021-10-11 00:27:09,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:09" (1/1) ... [2021-10-11 00:27:09,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:09" (1/1) ... [2021-10-11 00:27:09,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:09" (1/1) ... [2021-10-11 00:27:09,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:09" (1/1) ... [2021-10-11 00:27:09,212 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:09" (1/1) ... [2021-10-11 00:27:09,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:09" (1/1) ... [2021-10-11 00:27:09,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:27:09,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:27:09,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:27:09,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:27:09,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:09" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65bcbb3-8641-4522-8b76-8882899132e9/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:27:09,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 00:27:09,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 00:27:09,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:27:09,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:27:09,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:27:09,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:27:09,571 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:27:09,571 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 00:27:09,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:09 BoogieIcfgContainer [2021-10-11 00:27:09,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:27:09,575 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-11 00:27:09,575 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-11 00:27:09,579 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-11 00:27:09,580 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:27:09,580 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 11.10 12:27:08" (1/3) ... [2021-10-11 00:27:09,582 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1bc16f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:27:09, skipping insertion in model container [2021-10-11 00:27:09,582 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:27:09,582 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:09" (2/3) ... [2021-10-11 00:27:09,583 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1bc16f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:27:09, skipping insertion in model container [2021-10-11 00:27:09,583 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:27:09,583 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:09" (3/3) ... [2021-10-11 00:27:09,585 INFO L389 chiAutomizerObserver]: Analyzing ICFG cstrlen_reverse_alloca.i [2021-10-11 00:27:09,642 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-11 00:27:09,642 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-11 00:27:09,642 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-11 00:27:09,643 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:27:09,643 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:27:09,643 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-11 00:27:09,643 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:27:09,643 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-11 00:27:09,659 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2021-10-11 00:27:09,681 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-11 00:27:09,682 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:27:09,682 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:27:09,689 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-11 00:27:09,690 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:27:09,690 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-11 00:27:09,690 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2021-10-11 00:27:09,692 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-11 00:27:09,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:27:09,692 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:27:09,693 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-11 00:27:09,693 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:27:09,702 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~nondet207, main_#t~malloc208.base, main_#t~malloc208.offset, main_#t~ret209, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet207;havoc main_#t~nondet207; 13#L373true assume !(main_~length1~0 < 1); 6#L373-2true call main_#t~malloc208.base, main_#t~malloc208.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc208.base, main_#t~malloc208.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset, 1);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1);cstrlen_#in~s.base, cstrlen_#in~s.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~post206.base, cstrlen_#t~post206.offset, cstrlen_#t~mem205, cstrlen_~s.base, cstrlen_~s.offset, cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~s.base, cstrlen_~s.offset := cstrlen_#in~s.base, cstrlen_#in~s.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_~s.base, cstrlen_~s.offset; 7#L367-3true [2021-10-11 00:27:09,702 INFO L796 eck$LassoCheckResult]: Loop: 7#L367-3true call cstrlen_#t~mem205 := read~int(cstrlen_~p~0.base, cstrlen_~p~0.offset, 1); 4#L367-1true assume !!(0 != cstrlen_#t~mem205);havoc cstrlen_#t~mem205;cstrlen_#t~post206.base, cstrlen_#t~post206.offset := cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_#t~post206.base, cstrlen_#t~post206.offset - 1;havoc cstrlen_#t~post206.base, cstrlen_#t~post206.offset; 7#L367-3true [2021-10-11 00:27:09,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:09,710 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2021-10-11 00:27:09,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:09,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576259565] [2021-10-11 00:27:09,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:09,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:27:09,836 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:27:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:27:09,860 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:27:09,883 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:27:09,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:09,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1414, now seen corresponding path program 1 times [2021-10-11 00:27:09,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:09,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071655374] [2021-10-11 00:27:09,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:09,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:27:09,896 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:27:09,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:27:09,903 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:27:09,906 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:27:09,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:09,909 INFO L82 PathProgramCache]: Analyzing trace with hash 889568362, now seen corresponding path program 1 times [2021-10-11 00:27:09,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:09,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774836867] [2021-10-11 00:27:09,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:09,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:27:09,943 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:27:09,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:27:09,969 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:27:09,975 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:27:10,287 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-10-11 00:27:10,383 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:27:10,384 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:27:10,384 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:27:10,385 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:27:10,385 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:27:10,385 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:27:10,385 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:27:10,386 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:27:10,386 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrlen_reverse_alloca.i_Iteration1_Lasso [2021-10-11 00:27:10,386 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:27:10,386 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:27:10,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:27:10,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:27:10,586 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-10-11 00:27:10,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:27:10,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:27:10,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:27:10,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:27:10,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:27:10,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:27:10,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:27:10,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:27:11,094 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:27:11,100 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65bcbb3-8641-4522-8b76-8882899132e9/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:27:11,110 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 [2021-10-11 00:27:11,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:27:11,113 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:27:11,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:27:11,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:27:11,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:27:11,116 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:27:11,117 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:27:11,126 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65bcbb3-8641-4522-8b76-8882899132e9/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:27:11,172 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 [2021-10-11 00:27:11,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:27:11,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:27:11,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:27:11,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:27:11,181 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:27:11,182 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:27:11,201 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65bcbb3-8641-4522-8b76-8882899132e9/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:27:11,233 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 [2021-10-11 00:27:11,236 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:27:11,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:27:11,236 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:27:11,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:27:11,252 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:27:11,252 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:27:11,273 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:27:11,309 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-10-11 00:27:11,309 INFO L444 ModelExtractionUtils]: 6 out of 28 variables were initially zero. Simplification set additionally 19 variables to zero. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b65bcbb3-8641-4522-8b76-8882899132e9/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:27:11,344 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:27:11,387 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-11 00:27:11,387 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:27:11,388 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrlen_~p~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc208.base)_1) = 2*ULTIMATE.start_cstrlen_~p~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc208.base)_1 Supporting invariants [] [2021-10-11 00:27:11,443 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2021-10-11 00:27:11,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:11,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:11,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-11 00:27:11,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:27:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:11,587 WARN L261 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-11 00:27:11,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:27:11,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:27:11,640 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 [2021-10-11 00:27:11,642 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2021-10-11 00:27:11,712 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 20 states and 23 transitions. Complement of second has 6 states. [2021-10-11 00:27:11,712 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 [2021-10-11 00:27:11,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-11 00:27:11,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-10-11 00:27:11,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-11 00:27:11,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:27:11,718 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-11 00:27:11,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:27:11,718 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 4 letters. [2021-10-11 00:27:11,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:27:11,719 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2021-10-11 00:27:11,722 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:27:11,725 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2021-10-11 00:27:11,726 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-11 00:27:11,726 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-11 00:27:11,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-11 00:27:11,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:27:11,727 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:27:11,727 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:27:11,727 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:27:11,727 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-11 00:27:11,727 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:27:11,728 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:27:11,728 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-11 00:27:11,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 11.10 12:27:11 BoogieIcfgContainer [2021-10-11 00:27:11,734 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-11 00:27:11,735 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:27:11,735 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:27:11,735 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:27:11,736 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:09" (3/4) ... [2021-10-11 00:27:11,739 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:27:11,739 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:27:11,741 INFO L168 Benchmark]: Toolchain (without parser) took 3436.51 ms. Allocated memory was 104.9 MB in the beginning and 151.0 MB in the end (delta: 46.1 MB). Free memory was 74.9 MB in the beginning and 109.5 MB in the end (delta: -34.6 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:11,741 INFO L168 Benchmark]: CDTParser took 1.09 ms. Allocated memory is still 104.9 MB. Free memory is still 62.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:27:11,742 INFO L168 Benchmark]: CACSL2BoogieTranslator took 766.56 ms. Allocated memory was 104.9 MB in the beginning and 151.0 MB in the end (delta: 46.1 MB). Free memory was 74.7 MB in the beginning and 110.6 MB in the end (delta: -35.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:11,743 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.21 ms. Allocated memory is still 151.0 MB. Free memory was 110.6 MB in the beginning and 108.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:11,744 INFO L168 Benchmark]: Boogie Preprocessor took 49.49 ms. Allocated memory is still 151.0 MB. Free memory was 108.5 MB in the beginning and 107.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:27:11,745 INFO L168 Benchmark]: RCFGBuilder took 355.57 ms. Allocated memory is still 151.0 MB. Free memory was 107.2 MB in the beginning and 94.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:11,745 INFO L168 Benchmark]: BuchiAutomizer took 2159.32 ms. Allocated memory is still 151.0 MB. Free memory was 94.6 MB in the beginning and 110.5 MB in the end (delta: -15.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:27:11,746 INFO L168 Benchmark]: Witness Printer took 4.41 ms. Allocated memory is still 151.0 MB. Free memory was 110.5 MB in the beginning and 109.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:27:11,750 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.09 ms. Allocated memory is still 104.9 MB. Free memory is still 62.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 766.56 ms. Allocated memory was 104.9 MB in the beginning and 151.0 MB in the end (delta: 46.1 MB). Free memory was 74.7 MB in the beginning and 110.6 MB in the end (delta: -35.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 90.21 ms. Allocated memory is still 151.0 MB. Free memory was 110.6 MB in the beginning and 108.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.49 ms. Allocated memory is still 151.0 MB. Free memory was 108.5 MB in the beginning and 107.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 355.57 ms. Allocated memory is still 151.0 MB. Free memory was 107.2 MB in the beginning and 94.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2159.32 ms. Allocated memory is still 151.0 MB. Free memory was 94.6 MB in the beginning and 110.5 MB in the end (delta: -15.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.41 ms. Allocated memory is still 151.0 MB. Free memory was 110.5 MB in the beginning and 109.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * p + unknown-#length-unknown[__builtin_alloca(length1 * sizeof(char))] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 6 SDtfs, 9 SDslu, 1 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital118 mio100 ax100 hnf100 lsp94 ukn90 mio100 lsp48 div100 bol100 ite100 ukn100 eq193 hnf89 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 35ms 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...