./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b571e57b-51f0-4db8-a8a2-8d7b4dff0af4/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b571e57b-51f0-4db8-a8a2-8d7b4dff0af4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b571e57b-51f0-4db8-a8a2-8d7b4dff0af4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b571e57b-51f0-4db8-a8a2-8d7b4dff0af4/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b571e57b-51f0-4db8-a8a2-8d7b4dff0af4/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b571e57b-51f0-4db8-a8a2-8d7b4dff0af4/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2d5e1e94b71e060a77443e2afd511bc50cc1649d ................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:42:15,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:42:15,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:42:15,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:42:15,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:42:15,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:42:15,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:42:15,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:42:15,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:42:15,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:42:15,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:42:15,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:42:15,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:42:15,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:42:15,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:42:15,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:42:15,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:42:15,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:42:15,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:42:15,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:42:15,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:42:15,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:42:15,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:42:15,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:42:15,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:42:15,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:42:15,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:42:15,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:42:15,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:42:15,852 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:42:15,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:42:15,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:42:15,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:42:15,858 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:42:15,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:42:15,860 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:42:15,861 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:42:15,861 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:42:15,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:42:15,863 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:42:15,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:42:15,866 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b571e57b-51f0-4db8-a8a2-8d7b4dff0af4/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 20:42:15,924 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:42:15,924 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:42:15,926 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:42:15,927 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:42:15,927 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:42:15,927 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 20:42:15,928 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 20:42:15,928 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 20:42:15,928 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 20:42:15,929 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 20:42:15,931 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 20:42:15,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:42:15,931 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:42:15,932 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:42:15,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:42:15,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:42:15,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:42:15,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 20:42:15,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 20:42:15,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 20:42:15,934 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:42:15,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:42:15,934 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 20:42:15,934 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:42:15,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 20:42:15,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:42:15,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:42:15,936 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 20:42:15,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:42:15,938 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:42:15,939 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:42:15,940 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 20:42:15,942 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 20:42:15,943 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_b571e57b-51f0-4db8-a8a2-8d7b4dff0af4/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b571e57b-51f0-4db8-a8a2-8d7b4dff0af4/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d5e1e94b71e060a77443e2afd511bc50cc1649d [2020-11-29 20:42:16,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:42:16,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:42:16,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:42:16,330 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:42:16,332 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:42:16,344 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b571e57b-51f0-4db8-a8a2-8d7b4dff0af4/bin/uautomizer/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i [2020-11-29 20:42:16,456 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b571e57b-51f0-4db8-a8a2-8d7b4dff0af4/bin/uautomizer/data/2a2eb74f5/8c4264fcec4f403fbab560539c1cb1a7/FLAG082f9e5e7 [2020-11-29 20:42:17,028 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:42:17,029 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b571e57b-51f0-4db8-a8a2-8d7b4dff0af4/sv-benchmarks/c/loop-invgen/apache-get-tag.i [2020-11-29 20:42:17,037 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b571e57b-51f0-4db8-a8a2-8d7b4dff0af4/bin/uautomizer/data/2a2eb74f5/8c4264fcec4f403fbab560539c1cb1a7/FLAG082f9e5e7 [2020-11-29 20:42:17,387 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b571e57b-51f0-4db8-a8a2-8d7b4dff0af4/bin/uautomizer/data/2a2eb74f5/8c4264fcec4f403fbab560539c1cb1a7 [2020-11-29 20:42:17,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:42:17,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:42:17,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:42:17,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:42:17,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:42:17,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:42:17" (1/1) ... [2020-11-29 20:42:17,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68b9d5e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:17, skipping insertion in model container [2020-11-29 20:42:17,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:42:17" (1/1) ... [2020-11-29 20:42:17,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:42:17,449 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:42:17,725 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:42:17,740 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:42:17,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:42:17,818 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:42:17,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:17 WrapperNode [2020-11-29 20:42:17,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:42:17,824 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:42:17,824 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:42:17,825 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:42:17,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:17" (1/1) ... [2020-11-29 20:42:17,863 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:17" (1/1) ... [2020-11-29 20:42:17,901 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:42:17,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:42:17,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:42:17,907 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:42:17,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:17" (1/1) ... [2020-11-29 20:42:17,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:17" (1/1) ... [2020-11-29 20:42:17,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:17" (1/1) ... [2020-11-29 20:42:17,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:17" (1/1) ... [2020-11-29 20:42:17,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:17" (1/1) ... [2020-11-29 20:42:17,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:17" (1/1) ... [2020-11-29 20:42:17,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:17" (1/1) ... [2020-11-29 20:42:17,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:42:17,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:42:17,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:42:17,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:42:17,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b571e57b-51f0-4db8-a8a2-8d7b4dff0af4/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:42:18,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:42:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:42:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:42:18,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:42:18,628 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:42:18,628 INFO L298 CfgBuilder]: Removed 70 assume(true) statements. [2020-11-29 20:42:18,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:42:18 BoogieIcfgContainer [2020-11-29 20:42:18,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:42:18,632 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 20:42:18,632 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 20:42:18,636 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 20:42:18,639 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:42:18,640 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 08:42:17" (1/3) ... [2020-11-29 20:42:18,641 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@451fa265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:42:18, skipping insertion in model container [2020-11-29 20:42:18,641 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:42:18,641 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:42:17" (2/3) ... [2020-11-29 20:42:18,641 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@451fa265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:42:18, skipping insertion in model container [2020-11-29 20:42:18,642 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:42:18,642 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:42:18" (3/3) ... [2020-11-29 20:42:18,643 INFO L373 chiAutomizerObserver]: Analyzing ICFG apache-get-tag.i [2020-11-29 20:42:18,692 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 20:42:18,692 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 20:42:18,692 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 20:42:18,692 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:42:18,692 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:42:18,693 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 20:42:18,693 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:42:18,693 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 20:42:18,713 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states. [2020-11-29 20:42:18,743 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 40 [2020-11-29 20:42:18,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:42:18,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:42:18,752 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 20:42:18,752 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:42:18,752 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 20:42:18,752 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states. [2020-11-29 20:42:18,760 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 40 [2020-11-29 20:42:18,761 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:42:18,761 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:42:18,761 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 20:42:18,761 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:42:18,770 INFO L794 eck$LassoCheckResult]: Stem: 48#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); 21#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~pre4, main_#t~nondet5, main_#t~post6, main_#t~post7, main_#t~nondet8, main_#t~nondet9, main_#t~post10, main_#t~nondet11, main_#t~post12, main_~tagbuf_len~0, main_~t~0;havoc main_~tagbuf_len~0;havoc main_~t~0;main_~tagbuf_len~0 := main_#t~nondet3;havoc main_#t~nondet3; 14#L29true assume main_~tagbuf_len~0 >= 1; 11#L29-1true main_~t~0 := 0;main_#t~pre4 := main_~tagbuf_len~0 - 1;main_~tagbuf_len~0 := main_~tagbuf_len~0 - 1;havoc main_#t~pre4; 89#L32-2true [2020-11-29 20:42:18,771 INFO L796 eck$LassoCheckResult]: Loop: 89#L32-2true assume !false; 52#L33true assume !(main_~t~0 == main_~tagbuf_len~0); 67#L38true assume !(0 != main_#t~nondet5);havoc main_#t~nondet5;__VERIFIER_assert_#in~cond := (if 0 <= main_~t~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 27#L18-6true assume !(0 == __VERIFIER_assert_~cond); 22#L18-8true __VERIFIER_assert_#in~cond := (if main_~t~0 <= main_~tagbuf_len~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 90#L18-9true assume !(0 == __VERIFIER_assert_~cond); 86#L18-11true main_#t~post6 := main_~t~0;main_~t~0 := 1 + main_#t~post6;havoc main_#t~post6; 89#L32-2true [2020-11-29 20:42:18,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:42:18,778 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2020-11-29 20:42:18,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:42:18,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777209354] [2020-11-29 20:42:18,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:42:18,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:42:18,905 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:42:18,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:42:18,923 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:42:18,946 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:42:18,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:42:18,948 INFO L82 PathProgramCache]: Analyzing trace with hash -2095080420, now seen corresponding path program 1 times [2020-11-29 20:42:18,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:42:18,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230890841] [2020-11-29 20:42:18,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:42:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:42:18,964 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:42:18,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:42:18,981 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:42:18,986 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:42:18,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:42:18,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1748781642, now seen corresponding path program 1 times [2020-11-29 20:42:18,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:42:18,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733618047] [2020-11-29 20:42:18,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:42:19,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:42:19,036 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:42:19,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:42:19,078 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:42:19,095 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:42:19,259 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-11-29 20:42:19,326 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-29 20:42:19,326 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:42:19,411 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:42:19,413 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:42:19,414 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:42:19,414 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:42:19,414 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 20:42:19,414 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:42:19,415 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:42:19,415 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:42:19,415 INFO L133 ssoRankerPreferences]: Filename of dumped script: apache-get-tag.i_Iteration1_Loop [2020-11-29 20:42:19,415 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:42:19,416 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:42:19,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:42:19,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:42:19,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:42:19,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:42:19,624 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:42:19,625 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b571e57b-51f0-4db8-a8a2-8d7b4dff0af4/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:42:19,643 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:42:19,643 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:42:19,655 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 20:42:19,655 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6=0} Honda state: {ULTIMATE.start_main_#t~post6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b571e57b-51f0-4db8-a8a2-8d7b4dff0af4/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:42:19,719 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:42:19,719 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 20:42:19,736 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 20:42:19,736 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b571e57b-51f0-4db8-a8a2-8d7b4dff0af4/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:42:19,785 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:42:19,785 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b571e57b-51f0-4db8-a8a2-8d7b4dff0af4/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:42:19,843 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 20:42:19,843 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:42:19,900 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 20:42:19,906 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:42:19,906 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:42:19,906 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:42:19,906 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:42:19,907 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 20:42:19,907 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:42:19,907 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:42:19,907 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:42:19,907 INFO L133 ssoRankerPreferences]: Filename of dumped script: apache-get-tag.i_Iteration1_Loop [2020-11-29 20:42:19,907 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:42:19,908 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:42:19,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:42:19,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:42:19,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:42:19,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:42:20,087 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:42:20,092 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b571e57b-51f0-4db8-a8a2-8d7b4dff0af4/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:42:20,105 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:42:20,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:42:20,108 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:42:20,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:42:20,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:42:20,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:42:20,112 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:42:20,112 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:42:20,115 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b571e57b-51f0-4db8-a8a2-8d7b4dff0af4/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:42:20,177 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:42:20,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:42:20,181 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:42:20,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:42:20,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:42:20,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:42:20,183 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:42:20,183 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:42:20,187 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b571e57b-51f0-4db8-a8a2-8d7b4dff0af4/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:42:20,237 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:42:20,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:42:20,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:42:20,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:42:20,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:42:20,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:42:20,241 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:42:20,241 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:42:20,244 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b571e57b-51f0-4db8-a8a2-8d7b4dff0af4/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:42:20,272 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:42:20,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:42:20,274 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:42:20,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:42:20,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:42:20,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:42:20,276 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:42:20,277 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:42:20,283 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 20:42:20,289 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 20:42:20,290 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-vcloud-master/worker/run_dir_b571e57b-51f0-4db8-a8a2-8d7b4dff0af4/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:42:20,298 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 20:42:20,298 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 20:42:20,298 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 20:42:20,299 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~tagbuf_len~0, ULTIMATE.start_main_~t~0) = 1*ULTIMATE.start_main_~tagbuf_len~0 - 1*ULTIMATE.start_main_~t~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:42:20,346 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 20:42:20,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:42:20,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:42:20,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:42:20,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:42:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:42:20,440 WARN L261 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-29 20:42:20,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:42:20,502 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-29 20:42:20,502 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:42:20,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:42:20,550 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 [2020-11-29 20:42:20,552 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96 states. Second operand 6 states. [2020-11-29 20:42:20,924 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96 states.. Second operand 6 states. Result 259 states and 349 transitions. Complement of second has 11 states. [2020-11-29 20:42:20,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-11-29 20:42:20,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-29 20:42:20,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 263 transitions. [2020-11-29 20:42:20,930 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 263 transitions. Stem has 4 letters. Loop has 7 letters. [2020-11-29 20:42:20,933 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:42:20,933 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 263 transitions. Stem has 11 letters. Loop has 7 letters. [2020-11-29 20:42:20,934 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:42:20,934 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 263 transitions. Stem has 4 letters. Loop has 14 letters. [2020-11-29 20:42:20,934 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:42:20,935 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 259 states and 349 transitions. [2020-11-29 20:42:20,957 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 20:42:20,963 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 259 states to 0 states and 0 transitions. [2020-11-29 20:42:20,964 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 20:42:20,964 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 20:42:20,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 20:42:20,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:42:20,965 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:42:20,965 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:42:20,965 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:42:20,966 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 20:42:20,966 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:42:20,966 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 20:42:20,966 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 20:42:20,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 08:42:20 BoogieIcfgContainer [2020-11-29 20:42:20,972 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 20:42:20,973 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:42:20,973 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:42:20,974 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:42:20,974 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:42:18" (3/4) ... [2020-11-29 20:42:20,977 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 20:42:20,977 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:42:20,981 INFO L168 Benchmark]: Toolchain (without parser) took 3581.62 ms. Allocated memory is still 107.0 MB. Free memory was 75.8 MB in the beginning and 37.3 MB in the end (delta: 38.4 MB). Peak memory consumption was 38.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:42:20,982 INFO L168 Benchmark]: CDTParser took 1.01 ms. Allocated memory is still 79.7 MB. Free memory was 54.4 MB in the beginning and 54.4 MB in the end (delta: 27.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:42:20,984 INFO L168 Benchmark]: CACSL2BoogieTranslator took 417.75 ms. Allocated memory is still 107.0 MB. Free memory was 75.5 MB in the beginning and 84.9 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:42:20,985 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.58 ms. Allocated memory is still 107.0 MB. Free memory was 84.9 MB in the beginning and 82.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:42:20,986 INFO L168 Benchmark]: Boogie Preprocessor took 52.29 ms. Allocated memory is still 107.0 MB. Free memory was 82.8 MB in the beginning and 81.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:42:20,987 INFO L168 Benchmark]: RCFGBuilder took 674.95 ms. Allocated memory is still 107.0 MB. Free memory was 81.3 MB in the beginning and 57.6 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:42:20,989 INFO L168 Benchmark]: BuchiAutomizer took 2340.90 ms. Allocated memory is still 107.0 MB. Free memory was 57.6 MB in the beginning and 37.3 MB in the end (delta: 20.3 MB). Peak memory consumption was 22.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:42:20,995 INFO L168 Benchmark]: Witness Printer took 4.56 ms. Allocated memory is still 107.0 MB. Free memory is still 37.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:42:21,001 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.01 ms. Allocated memory is still 79.7 MB. Free memory was 54.4 MB in the beginning and 54.4 MB in the end (delta: 27.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 417.75 ms. Allocated memory is still 107.0 MB. Free memory was 75.5 MB in the beginning and 84.9 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.58 ms. Allocated memory is still 107.0 MB. Free memory was 84.9 MB in the beginning and 82.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.29 ms. Allocated memory is still 107.0 MB. Free memory was 82.8 MB in the beginning and 81.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 674.95 ms. Allocated memory is still 107.0 MB. Free memory was 81.3 MB in the beginning and 57.6 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2340.90 ms. Allocated memory is still 107.0 MB. Free memory was 57.6 MB in the beginning and 37.3 MB in the end (delta: 20.3 MB). Peak memory consumption was 22.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.56 ms. Allocated memory is still 107.0 MB. Free memory is still 37.3 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 tagbuf_len + -1 * t and consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 60 SDtfs, 98 SDslu, 135 SDs, 0 SdLazy, 110 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital26 mio100 ax100 hnf100 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq158 hnf96 smp73 dnf100 smp100 tf110 neg95 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...