./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_83b36b75-c7d5-41c5-9ce3-e03ad745126b/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b36b75-c7d5-41c5-9ce3-e03ad745126b/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_83b36b75-c7d5-41c5-9ce3-e03ad745126b/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b36b75-c7d5-41c5-9ce3-e03ad745126b/bin/uautomizer-Z5i5R5N3CC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b36b75-c7d5-41c5-9ce3-e03ad745126b/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b36b75-c7d5-41c5-9ce3-e03ad745126b/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 32bit --witnessprinter.graph.data.programhash 93bb43afb01d6e3a62dc39071b7659c8b1c085d1 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:28:55,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:28:55,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:28:55,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:28:55,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:28:55,893 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:28:55,895 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:28:55,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:28:55,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:28:55,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:28:55,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:28:55,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:28:55,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:28:55,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:28:55,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:28:55,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:28:55,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:28:55,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:28:55,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:28:55,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:28:55,918 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:28:55,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:28:55,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:28:55,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:28:55,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:28:55,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:28:55,938 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:28:55,940 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:28:55,944 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:28:55,945 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:28:55,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:28:55,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:28:55,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:28:55,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:28:55,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:28:55,952 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:28:55,953 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:28:55,953 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:28:55,953 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:28:55,954 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:28:55,955 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:28:55,956 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b36b75-c7d5-41c5-9ce3-e03ad745126b/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-11 00:28:55,989 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:28:55,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:28:55,991 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:28:55,991 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:28:55,991 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:28:55,991 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-11 00:28:55,992 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-11 00:28:55,992 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-11 00:28:55,992 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-11 00:28:55,992 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-11 00:28:55,993 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-11 00:28:55,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:28:55,993 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:28:55,993 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:28:55,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:28:55,994 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:28:55,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:28:55,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-11 00:28:55,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-11 00:28:55,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-11 00:28:55,995 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:28:55,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:28:55,995 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-11 00:28:55,995 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:28:55,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-11 00:28:55,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:28:55,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:28:55,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:28:55,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:28:55,997 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:28:55,998 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-11 00:28:55,998 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_83b36b75-c7d5-41c5-9ce3-e03ad745126b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b36b75-c7d5-41c5-9ce3-e03ad745126b/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93bb43afb01d6e3a62dc39071b7659c8b1c085d1 [2021-10-11 00:28:56,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:28:56,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:28:56,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:28:56,321 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:28:56,325 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:28:56,326 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b36b75-c7d5-41c5-9ce3-e03ad745126b/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2021-10-11 00:28:56,412 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b36b75-c7d5-41c5-9ce3-e03ad745126b/bin/uautomizer-Z5i5R5N3CC/data/56f5c47de/8c07c24bfcd04f8982e14c23ecf60f0f/FLAG90af1bcf9 [2021-10-11 00:28:56,874 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:28:56,875 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b36b75-c7d5-41c5-9ce3-e03ad745126b/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2021-10-11 00:28:56,880 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b36b75-c7d5-41c5-9ce3-e03ad745126b/bin/uautomizer-Z5i5R5N3CC/data/56f5c47de/8c07c24bfcd04f8982e14c23ecf60f0f/FLAG90af1bcf9 [2021-10-11 00:28:56,893 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b36b75-c7d5-41c5-9ce3-e03ad745126b/bin/uautomizer-Z5i5R5N3CC/data/56f5c47de/8c07c24bfcd04f8982e14c23ecf60f0f [2021-10-11 00:28:56,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:28:56,896 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:28:56,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:28:56,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:28:56,907 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:28:56,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:28:56" (1/1) ... [2021-10-11 00:28:56,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52747891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:56, skipping insertion in model container [2021-10-11 00:28:56,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:28:56" (1/1) ... [2021-10-11 00:28:56,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:28:56,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:28:57,089 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b36b75-c7d5-41c5-9ce3-e03ad745126b/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i[893,906] [2021-10-11 00:28:57,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:28:57,117 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:28:57,130 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b36b75-c7d5-41c5-9ce3-e03ad745126b/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i[893,906] [2021-10-11 00:28:57,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:28:57,155 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:28:57,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:57 WrapperNode [2021-10-11 00:28:57,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:28:57,157 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:28:57,157 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:28:57,157 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:28:57,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:57" (1/1) ... [2021-10-11 00:28:57,173 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:57" (1/1) ... [2021-10-11 00:28:57,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:28:57,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:28:57,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:28:57,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:28:57,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:57" (1/1) ... [2021-10-11 00:28:57,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:57" (1/1) ... [2021-10-11 00:28:57,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:57" (1/1) ... [2021-10-11 00:28:57,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:57" (1/1) ... [2021-10-11 00:28:57,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:57" (1/1) ... [2021-10-11 00:28:57,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:57" (1/1) ... [2021-10-11 00:28:57,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:57" (1/1) ... [2021-10-11 00:28:57,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:28:57,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:28:57,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:28:57,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:28:57,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:57" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b36b75-c7d5-41c5-9ce3-e03ad745126b/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 00:28:57,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:28:57,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:28:57,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:28:57,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:28:57,826 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:28:57,839 INFO L299 CfgBuilder]: Removed 42 assume(true) statements. [2021-10-11 00:28:57,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:57 BoogieIcfgContainer [2021-10-11 00:28:57,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:28:57,842 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-11 00:28:57,845 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-11 00:28:57,848 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-11 00:28:57,853 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:28:57,853 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 11.10 12:28:56" (1/3) ... [2021-10-11 00:28:57,854 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13daca73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:28:57, skipping insertion in model container [2021-10-11 00:28:57,859 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:28:57,860 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:57" (2/3) ... [2021-10-11 00:28:57,860 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13daca73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:28:57, skipping insertion in model container [2021-10-11 00:28:57,861 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:28:57,861 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:57" (3/3) ... [2021-10-11 00:28:57,862 INFO L389 chiAutomizerObserver]: Analyzing ICFG apache-escape-absolute.i [2021-10-11 00:28:57,920 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-11 00:28:57,920 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-11 00:28:57,920 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-11 00:28:57,921 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:28:57,921 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:28:57,921 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-11 00:28:57,921 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:28:57,921 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-11 00:28:57,934 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 70 states. [2021-10-11 00:28:57,961 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 27 [2021-10-11 00:28:57,961 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:28:57,961 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:28:57,968 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:28:57,968 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-10-11 00:28:57,968 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-11 00:28:57,968 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 70 states. [2021-10-11 00:28:57,975 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 27 [2021-10-11 00:28:57,975 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:28:57,975 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:28:57,976 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:28:57,976 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-10-11 00:28:57,982 INFO L794 eck$LassoCheckResult]: Stem: 46#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 16#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~pre8, main_#t~pre9, main_#t~nondet10, main_#t~nondet11, main_#t~pre12, main_#t~pre13, main_~scheme~0, main_~urilen~0, main_~tokenlen~0, main_~cp~0, main_~c~0;havoc main_~scheme~0;havoc main_~urilen~0;havoc main_~tokenlen~0;havoc main_~cp~0;havoc main_~c~0;main_~urilen~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~tokenlen~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~scheme~0 := main_#t~nondet5;havoc main_#t~nondet5; 19#L32true assume !!(main_~urilen~0 <= 1000000 && main_~urilen~0 >= -1000000); 49#L33true assume !!(main_~tokenlen~0 <= 1000000 && main_~tokenlen~0 >= -1000000); 62#L34true assume !!(main_~scheme~0 <= 1000000 && main_~scheme~0 >= -1000000); 70#L35true assume main_~urilen~0 > 0; 69#L35-1true assume main_~tokenlen~0 > 0; 32#L36true assume main_~scheme~0 >= 0; 35#L37true assume !(0 == main_~scheme~0 || main_~urilen~0 - 1 < main_~scheme~0);main_~cp~0 := main_~scheme~0;__VERIFIER_assert_#in~cond := (if main_~cp~0 - 1 < main_~urilen~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 11#L18true assume !(0 == __VERIFIER_assert_~cond); 7#L18-2true __VERIFIER_assert_#in~cond := (if 0 <= main_~cp~0 - 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 3#L18-3true assume !(0 == __VERIFIER_assert_~cond); 26#L18-5true assume 0 != main_#t~nondet6;havoc main_#t~nondet6;__VERIFIER_assert_#in~cond := (if main_~cp~0 < main_~urilen~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 22#L18-6true assume !(0 == __VERIFIER_assert_~cond); 18#L18-8true __VERIFIER_assert_#in~cond := (if 0 <= main_~cp~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 66#L18-9true assume !(0 == __VERIFIER_assert_~cond); 31#L47-1true [2021-10-11 00:28:57,983 INFO L796 eck$LassoCheckResult]: Loop: 31#L47-1true assume !!(main_~cp~0 != main_~urilen~0 - 1); 37#L48true assume !(0 != main_#t~nondet7);havoc main_#t~nondet7;__VERIFIER_assert_#in~cond := (if main_~cp~0 < main_~urilen~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 64#L18-12true assume !(0 == __VERIFIER_assert_~cond); 72#L18-14true __VERIFIER_assert_#in~cond := (if 0 <= main_~cp~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 71#L18-15true assume !(0 == __VERIFIER_assert_~cond); 68#L18-17true main_#t~pre8 := 1 + main_~cp~0;main_~cp~0 := 1 + main_~cp~0;havoc main_#t~pre8; 31#L47-1true [2021-10-11 00:28:57,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:57,989 INFO L82 PathProgramCache]: Analyzing trace with hash 642350381, now seen corresponding path program 1 times [2021-10-11 00:28:57,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:57,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384723679] [2021-10-11 00:28:57,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:58,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:28:58,111 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:28:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:28:58,163 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:28:58,187 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:28:58,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:58,189 INFO L82 PathProgramCache]: Analyzing trace with hash -739962356, now seen corresponding path program 1 times [2021-10-11 00:28:58,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:58,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664497569] [2021-10-11 00:28:58,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:28:58,200 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:28:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:28:58,210 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:28:58,213 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:28:58,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:58,215 INFO L82 PathProgramCache]: Analyzing trace with hash -504431048, now seen corresponding path program 1 times [2021-10-11 00:28:58,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:58,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522852399] [2021-10-11 00:28:58,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:58,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:28:58,273 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:28:58,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:28:58,322 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:28:58,335 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:28:58,446 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-10-11 00:28:58,446 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:28:58,500 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:28:58,501 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:28:58,501 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:28:58,501 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:28:58,501 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:28:58,502 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:28:58,502 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:28:58,502 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:28:58,502 INFO L133 ssoRankerPreferences]: Filename of dumped script: apache-escape-absolute.i_Iteration1_Loop [2021-10-11 00:28:58,502 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:28:58,503 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:28:58,519 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 00:28:58,525 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 00:28:58,530 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 00:28:58,537 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 00:28:58,643 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:28:58,645 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b36b75-c7d5-41c5-9ce3-e03ad745126b/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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:28:58,663 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:28:58,663 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:28:58,685 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:28:58,686 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~pre8=0} Honda state: {ULTIMATE.start_main_#t~pre8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b36b75-c7d5-41c5-9ce3-e03ad745126b/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 00:28:58,725 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:28:58,725 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:28:58,749 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:28:58,749 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet7=0} Honda state: {ULTIMATE.start_main_#t~nondet7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b36b75-c7d5-41c5-9ce3-e03ad745126b/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) [2021-10-11 00:28:58,789 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:28:58,789 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:28:58,813 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:28:58,814 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b36b75-c7d5-41c5-9ce3-e03ad745126b/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 00:28:58,841 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:28:58,841 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b36b75-c7d5-41c5-9ce3-e03ad745126b/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:28:58,875 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:28:58,875 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:28:58,961 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:28:58,963 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:28:58,963 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:28:58,963 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:28:58,963 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:28:58,963 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:28:58,964 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:28:58,964 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:28:58,964 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:28:58,964 INFO L133 ssoRankerPreferences]: Filename of dumped script: apache-escape-absolute.i_Iteration1_Loop [2021-10-11 00:28:58,964 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:28:58,964 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:28:58,966 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 00:28:58,974 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 00:28:58,978 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 00:28:58,985 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 00:28:59,128 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:28:59,132 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b36b75-c7d5-41c5-9ce3-e03ad745126b/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:28:59,143 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 00:28:59,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:28:59,147 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:28:59,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:28:59,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:28:59,147 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:28:59,150 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:28:59,150 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:28:59,160 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_83b36b75-c7d5-41c5-9ce3-e03ad745126b/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:28:59,201 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 00:28:59,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:28:59,203 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:28:59,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:28:59,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:28:59,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:28:59,205 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:28:59,205 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:28:59,228 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_83b36b75-c7d5-41c5-9ce3-e03ad745126b/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:28:59,265 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 00:28:59,267 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:28:59,267 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:28:59,267 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:28:59,267 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:28:59,267 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:28:59,270 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:28:59,270 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:28:59,288 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_83b36b75-c7d5-41c5-9ce3-e03ad745126b/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:28:59,325 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:28:59,327 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:28:59,327 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:28:59,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:28:59,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:28:59,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:28:59,330 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:28:59,331 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:28:59,352 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:28:59,357 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-11 00:28:59,357 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b36b75-c7d5-41c5-9ce3-e03ad745126b/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:28:59,401 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:28:59,402 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:28:59,402 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:28:59,403 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~urilen~0, ULTIMATE.start_main_~cp~0) = 1*ULTIMATE.start_main_~urilen~0 - 1*ULTIMATE.start_main_~cp~0 Supporting invariants [] [2021-10-11 00:28:59,437 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:28:59,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:59,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:28:59,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:28:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:59,547 WARN L261 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-11 00:28:59,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:28:59,666 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 00:28:59,685 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-10-11 00:28:59,686 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 70 states. Second operand 5 states. [2021-10-11 00:28:59,982 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 70 states.. Second operand 5 states. Result 210 states and 288 transitions. Complement of second has 13 states. [2021-10-11 00:28:59,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-10-11 00:28:59,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-11 00:28:59,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 209 transitions. [2021-10-11 00:28:59,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 209 transitions. Stem has 16 letters. Loop has 6 letters. [2021-10-11 00:28:59,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:28:59,992 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 209 transitions. Stem has 22 letters. Loop has 6 letters. [2021-10-11 00:28:59,993 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:28:59,993 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 209 transitions. Stem has 16 letters. Loop has 12 letters. [2021-10-11 00:28:59,993 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:28:59,994 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 210 states and 288 transitions. [2021-10-11 00:29:00,015 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:29:00,019 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 210 states to 0 states and 0 transitions. [2021-10-11 00:29:00,021 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-11 00:29:00,021 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-11 00:29:00,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-11 00:29:00,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:29:00,022 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:29:00,022 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:29:00,022 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:29:00,022 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-11 00:29:00,022 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:29:00,022 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:29:00,023 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-11 00:29:00,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 11.10 12:29:00 BoogieIcfgContainer [2021-10-11 00:29:00,028 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-11 00:29:00,029 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:29:00,029 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:29:00,029 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:29:00,030 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:57" (3/4) ... [2021-10-11 00:29:00,033 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:29:00,033 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:29:00,037 INFO L168 Benchmark]: Toolchain (without parser) took 3137.73 ms. Allocated memory was 77.6 MB in the beginning and 107.0 MB in the end (delta: 29.4 MB). Free memory was 40.1 MB in the beginning and 74.7 MB in the end (delta: -34.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:29:00,038 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 77.6 MB. Free memory is still 56.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:29:00,039 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.40 ms. Allocated memory was 77.6 MB in the beginning and 107.0 MB in the end (delta: 29.4 MB). Free memory was 39.9 MB in the beginning and 82.2 MB in the end (delta: -42.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:29:00,040 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.63 ms. Allocated memory is still 107.0 MB. Free memory was 82.2 MB in the beginning and 80.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:29:00,041 INFO L168 Benchmark]: Boogie Preprocessor took 63.15 ms. Allocated memory is still 107.0 MB. Free memory was 80.6 MB in the beginning and 79.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:29:00,042 INFO L168 Benchmark]: RCFGBuilder took 556.47 ms. Allocated memory is still 107.0 MB. Free memory was 79.1 MB in the beginning and 56.1 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:29:00,044 INFO L168 Benchmark]: BuchiAutomizer took 2186.19 ms. Allocated memory is still 107.0 MB. Free memory was 56.1 MB in the beginning and 74.7 MB in the end (delta: -18.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:29:00,048 INFO L168 Benchmark]: Witness Printer took 4.76 ms. Allocated memory is still 107.0 MB. Free memory is still 74.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:29:00,057 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 77.6 MB. Free memory is still 56.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 257.40 ms. Allocated memory was 77.6 MB in the beginning and 107.0 MB in the end (delta: 29.4 MB). Free memory was 39.9 MB in the beginning and 82.2 MB in the end (delta: -42.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.63 ms. Allocated memory is still 107.0 MB. Free memory was 82.2 MB in the beginning and 80.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 63.15 ms. Allocated memory is still 107.0 MB. Free memory was 80.6 MB in the beginning and 79.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 556.47 ms. Allocated memory is still 107.0 MB. Free memory was 79.1 MB in the beginning and 56.1 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2186.19 ms. Allocated memory is still 107.0 MB. Free memory was 56.1 MB in the beginning and 74.7 MB in the end (delta: -18.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.76 ms. Allocated memory is still 107.0 MB. Free memory is still 74.7 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 urilen + -1 * cp and consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. 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: 64 SDtfs, 97 SDslu, 63 SDs, 0 SdLazy, 109 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital28 mio100 ax100 hnf100 lsp67 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq163 hnf96 smp69 dnf100 smp100 tf109 neg95 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...