./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-dietlibc/strrchr.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-dietlibc/strrchr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 900f92af74c0348435977f69b7ec984c63076a1b ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 04:18:19,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:18:19,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:18:19,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:18:19,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:18:19,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:18:19,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:18:19,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:18:19,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:18:19,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:18:19,921 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:18:19,926 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:18:19,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:18:19,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:18:19,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:18:19,934 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:18:19,935 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:18:19,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:18:19,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:18:19,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:18:19,953 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:18:19,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:18:19,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:18:19,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:18:19,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:18:19,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:18:19,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:18:19,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:18:19,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:18:19,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:18:19,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:18:19,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:18:19,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:18:19,975 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:18:19,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:18:19,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:18:19,980 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:18:19,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:18:19,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:18:19,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:18:19,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:18:19,989 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-26 04:18:20,044 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:18:20,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:18:20,047 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:18:20,047 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:18:20,048 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:18:20,048 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 04:18:20,048 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 04:18:20,049 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 04:18:20,049 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 04:18:20,049 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 04:18:20,050 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 04:18:20,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:18:20,050 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:18:20,051 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:18:20,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:18:20,051 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 04:18:20,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 04:18:20,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 04:18:20,052 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:18:20,052 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 04:18:20,052 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:18:20,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 04:18:20,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:18:20,053 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:18:20,053 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 04:18:20,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:18:20,053 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:18:20,053 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:18:20,054 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 04:18:20,056 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 04:18:20,056 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 900f92af74c0348435977f69b7ec984c63076a1b [2020-10-26 04:18:20,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:18:20,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:18:20,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:18:20,519 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:18:20,520 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:18:20,521 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-dietlibc/strrchr.i [2020-10-26 04:18:20,616 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/826410ee2/7b63edb1ebee41428b9f7bbc604b20dd/FLAGce93dea99 [2020-10-26 04:18:21,241 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:18:21,249 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-dietlibc/strrchr.i [2020-10-26 04:18:21,274 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/826410ee2/7b63edb1ebee41428b9f7bbc604b20dd/FLAGce93dea99 [2020-10-26 04:18:21,591 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/826410ee2/7b63edb1ebee41428b9f7bbc604b20dd [2020-10-26 04:18:21,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:18:21,629 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:18:21,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:18:21,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:18:21,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:18:21,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:18:21" (1/1) ... [2020-10-26 04:18:21,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13c83b49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:21, skipping insertion in model container [2020-10-26 04:18:21,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:18:21" (1/1) ... [2020-10-26 04:18:21,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:18:21,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:18:22,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:18:22,073 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:18:22,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:18:22,176 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:18:22,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:22 WrapperNode [2020-10-26 04:18:22,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:18:22,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:18:22,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:18:22,179 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:18:22,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:22" (1/1) ... [2020-10-26 04:18:22,205 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:22" (1/1) ... [2020-10-26 04:18:22,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:18:22,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:18:22,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:18:22,230 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:18:22,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:22" (1/1) ... [2020-10-26 04:18:22,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:22" (1/1) ... [2020-10-26 04:18:22,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:22" (1/1) ... [2020-10-26 04:18:22,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:22" (1/1) ... [2020-10-26 04:18:22,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:22" (1/1) ... [2020-10-26 04:18:22,257 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:22" (1/1) ... [2020-10-26 04:18:22,258 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:22" (1/1) ... [2020-10-26 04:18:22,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:18:22,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:18:22,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:18:22,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:18:22,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-26 04:18:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 04:18:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 04:18:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 04:18:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 04:18:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:18:22,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:18:22,742 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:18:22,742 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-10-26 04:18:22,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:18:22 BoogieIcfgContainer [2020-10-26 04:18:22,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:18:22,745 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 04:18:22,746 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 04:18:22,749 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 04:18:22,750 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:18:22,750 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 04:18:21" (1/3) ... [2020-10-26 04:18:22,751 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11cb7e20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:18:22, skipping insertion in model container [2020-10-26 04:18:22,752 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:18:22,752 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:22" (2/3) ... [2020-10-26 04:18:22,752 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11cb7e20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:18:22, skipping insertion in model container [2020-10-26 04:18:22,752 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:18:22,753 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:18:22" (3/3) ... [2020-10-26 04:18:22,754 INFO L373 chiAutomizerObserver]: Analyzing ICFG strrchr.i [2020-10-26 04:18:22,804 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 04:18:22,805 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 04:18:22,805 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 04:18:22,805 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:18:22,805 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:18:22,806 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 04:18:22,806 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:18:22,806 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 04:18:22,821 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2020-10-26 04:18:22,845 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2020-10-26 04:18:22,845 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:18:22,846 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:18:22,853 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-26 04:18:22,853 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:18:22,853 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 04:18:22,853 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2020-10-26 04:18:22,856 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2020-10-26 04:18:22,856 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:18:22,856 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:18:22,857 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-26 04:18:22,857 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:18:22,866 INFO L794 eck$LassoCheckResult]: Stem: 15#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 12#L-1true havoc main_#res;havoc main_#t~nondet14, main_#t~malloc15.base, main_#t~malloc15.offset, main_#t~nondet16, main_#t~ret17.base, main_#t~ret17.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~the_int~0;main_~in_len~0 := main_#t~nondet14;havoc main_#t~nondet14; 16#L520true assume !(main_~in_len~0 < 1);call main_#t~malloc15.base, main_#t~malloc15.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc15.base, main_#t~malloc15.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~the_int~0 := main_#t~nondet16;havoc main_#t~nondet16;strrchr_#in~t.base, strrchr_#in~t.offset, strrchr_#in~c := main_~in~0.base, main_~in~0.offset, main_~the_int~0;havoc strrchr_#res.base, strrchr_#res.offset;havoc strrchr_#t~mem2, strrchr_#t~mem3, strrchr_#t~pre4.base, strrchr_#t~pre4.offset, strrchr_#t~mem5, strrchr_#t~mem6, strrchr_#t~pre7.base, strrchr_#t~pre7.offset, strrchr_#t~mem8, strrchr_#t~mem9, strrchr_#t~pre10.base, strrchr_#t~pre10.offset, strrchr_#t~mem11, strrchr_#t~mem12, strrchr_#t~pre13.base, strrchr_#t~pre13.offset, strrchr_~t.base, strrchr_~t.offset, strrchr_~c, strrchr_~ch~0, strrchr_~l~0.base, strrchr_~l~0.offset;strrchr_~t.base, strrchr_~t.offset := strrchr_#in~t.base, strrchr_#in~t.offset;strrchr_~c := strrchr_#in~c;havoc strrchr_~ch~0;strrchr_~l~0.base, strrchr_~l~0.offset := 0, 0;strrchr_~ch~0 := (if strrchr_~c % 256 <= 127 then strrchr_~c % 256 else strrchr_~c % 256 - 256); 19#L510-2true [2020-10-26 04:18:22,867 INFO L796 eck$LassoCheckResult]: Loop: 19#L510-2true assume !false;call strrchr_#t~mem2 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 9#L511true assume strrchr_#t~mem2 == strrchr_~ch~0;havoc strrchr_#t~mem2;strrchr_~l~0.base, strrchr_~l~0.offset := strrchr_~t.base, strrchr_~t.offset; 17#L511-2true call strrchr_#t~mem3 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 21#L511-3true assume !(0 == strrchr_#t~mem3);havoc strrchr_#t~mem3;strrchr_#t~pre4.base, strrchr_#t~pre4.offset := strrchr_~t.base, 1 + strrchr_~t.offset;strrchr_~t.base, strrchr_~t.offset := strrchr_~t.base, 1 + strrchr_~t.offset;havoc strrchr_#t~pre4.base, strrchr_#t~pre4.offset;call strrchr_#t~mem5 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 7#L512true assume !(strrchr_#t~mem5 == strrchr_~ch~0);havoc strrchr_#t~mem5; 13#L512-2true call strrchr_#t~mem6 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 18#L512-3true assume !(0 == strrchr_#t~mem6);havoc strrchr_#t~mem6;strrchr_#t~pre7.base, strrchr_#t~pre7.offset := strrchr_~t.base, 1 + strrchr_~t.offset;strrchr_~t.base, strrchr_~t.offset := strrchr_~t.base, 1 + strrchr_~t.offset;havoc strrchr_#t~pre7.base, strrchr_#t~pre7.offset;call strrchr_#t~mem8 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 6#L513true assume strrchr_#t~mem8 == strrchr_~ch~0;havoc strrchr_#t~mem8;strrchr_~l~0.base, strrchr_~l~0.offset := strrchr_~t.base, strrchr_~t.offset; 10#L513-2true call strrchr_#t~mem9 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 14#L513-3true assume !(0 == strrchr_#t~mem9);havoc strrchr_#t~mem9;strrchr_#t~pre10.base, strrchr_#t~pre10.offset := strrchr_~t.base, 1 + strrchr_~t.offset;strrchr_~t.base, strrchr_~t.offset := strrchr_~t.base, 1 + strrchr_~t.offset;havoc strrchr_#t~pre10.base, strrchr_#t~pre10.offset;call strrchr_#t~mem11 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 4#L514true assume strrchr_#t~mem11 == strrchr_~ch~0;havoc strrchr_#t~mem11;strrchr_~l~0.base, strrchr_~l~0.offset := strrchr_~t.base, strrchr_~t.offset; 8#L514-2true call strrchr_#t~mem12 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 11#L514-3true assume !(0 == strrchr_#t~mem12);havoc strrchr_#t~mem12;strrchr_#t~pre13.base, strrchr_#t~pre13.offset := strrchr_~t.base, 1 + strrchr_~t.offset;strrchr_~t.base, strrchr_~t.offset := strrchr_~t.base, 1 + strrchr_~t.offset;havoc strrchr_#t~pre13.base, strrchr_#t~pre13.offset; 19#L510-2true [2020-10-26 04:18:22,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:22,874 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2020-10-26 04:18:22,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:22,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088439991] [2020-10-26 04:18:22,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:23,024 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:23,048 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:23,073 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:18:23,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:23,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1555843192, now seen corresponding path program 1 times [2020-10-26 04:18:23,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:23,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318188980] [2020-10-26 04:18:23,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:23,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:23,106 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:23,131 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:23,137 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:18:23,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:23,144 INFO L82 PathProgramCache]: Analyzing trace with hash -220781627, now seen corresponding path program 1 times [2020-10-26 04:18:23,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:18:23,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740687581] [2020-10-26 04:18:23,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:18:23,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:23,230 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:18:23,267 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:18:23,278 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:18:23,619 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 79 [2020-10-26 04:18:23,886 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2020-10-26 04:18:23,996 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:18:23,997 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:18:23,997 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:18:23,997 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:18:23,997 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:18:23,998 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:23,998 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:18:23,998 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:18:23,998 INFO L133 ssoRankerPreferences]: Filename of dumped script: strrchr.i_Iteration1_Lasso [2020-10-26 04:18:23,999 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:18:23,999 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:18:24,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:24,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:24,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:24,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:24,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:24,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:24,522 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-10-26 04:18:24,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:24,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:24,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:24,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:24,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:24,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:24,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:24,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:24,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:24,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:24,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:24,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:24,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:24,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:24,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:24,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:24,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:24,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:24,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:24,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:18:25,205 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2020-10-26 04:18:25,456 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2020-10-26 04:18:25,567 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:18:25,575 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:25,585 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 [2020-10-26 04:18:25,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:25,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:25,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:25,588 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:25,594 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:25,595 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:25,604 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:25,641 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 [2020-10-26 04:18:25,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:25,643 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:25,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:25,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:25,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:25,645 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:25,645 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:25,647 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:25,687 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 [2020-10-26 04:18:25,689 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:25,689 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:25,689 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:25,689 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:25,689 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:25,690 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:25,690 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:25,692 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:25,720 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 [2020-10-26 04:18:25,722 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:25,722 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:25,723 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:25,723 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:25,723 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:25,724 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:25,724 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:25,725 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:25,750 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 [2020-10-26 04:18:25,753 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:25,753 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:18:25,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:25,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:25,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:25,759 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:18:25,759 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:18:25,761 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-26 04:18:25,795 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 [2020-10-26 04:18:25,797 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:25,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:25,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:25,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:25,805 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:25,805 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:25,813 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-26 04:18:25,837 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 [2020-10-26 04:18:25,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:25,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:25,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:25,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:25,849 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:25,849 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:18:25,865 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:25,905 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 [2020-10-26 04:18:25,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:25,908 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-10-26 04:18:25,908 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2020-10-26 04:18:25,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:26,039 INFO L401 nArgumentSynthesizer]: We have 108 Motzkin's Theorem applications. [2020-10-26 04:18:26,039 INFO L402 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2020-10-26 04:18:26,278 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:18:26,308 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 [2020-10-26 04:18:26,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:18:26,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:18:26,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:18:26,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:18:26,318 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:18:26,318 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:26,334 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:18:26,463 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-10-26 04:18:26,463 INFO L444 ModelExtractionUtils]: 8 out of 28 variables were initially zero. Simplification set additionally 17 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:18:26,473 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:18:26,483 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 04:18:26,483 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:18:26,484 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc15.base)_1, ULTIMATE.start_strrchr_~t.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc15.base)_1 - 1*ULTIMATE.start_strrchr_~t.offset Supporting invariants [] [2020-10-26 04:18:26,542 INFO L297 tatePredicateManager]: 9 out of 10 supporting invariants were superfluous and have been removed [2020-10-26 04:18:26,552 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-26 04:18:26,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:18:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:18:26,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 04:18:26,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:18:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:18:26,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 17 conjunts are in the unsatisfiable core [2020-10-26 04:18:26,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:18:26,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:18:26,798 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 [2020-10-26 04:18:26,800 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states. Second operand 6 states. [2020-10-26 04:18:26,926 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states.. Second operand 6 states. Result 42 states and 62 transitions. Complement of second has 8 states. [2020-10-26 04:18:26,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-26 04:18:26,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-26 04:18:26,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 38 transitions. [2020-10-26 04:18:26,931 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 3 letters. Loop has 13 letters. [2020-10-26 04:18:26,932 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:18:26,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 16 letters. Loop has 13 letters. [2020-10-26 04:18:26,933 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:18:26,933 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 3 letters. Loop has 26 letters. [2020-10-26 04:18:26,934 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:18:26,935 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 62 transitions. [2020-10-26 04:18:26,941 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:18:26,944 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 0 states and 0 transitions. [2020-10-26 04:18:26,945 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 04:18:26,945 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 04:18:26,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 04:18:26,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:18:26,946 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:18:26,946 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:18:26,946 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:18:26,946 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 04:18:26,946 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:18:26,946 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:18:26,946 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 04:18:26,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 04:18:26 BoogieIcfgContainer [2020-10-26 04:18:26,951 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 04:18:26,952 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:18:26,952 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:18:26,952 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:18:26,953 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:18:22" (3/4) ... [2020-10-26 04:18:26,956 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 04:18:26,956 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:18:26,958 INFO L168 Benchmark]: Toolchain (without parser) took 5354.88 ms. Allocated memory was 41.9 MB in the beginning and 107.0 MB in the end (delta: 65.0 MB). Free memory was 27.9 MB in the beginning and 67.4 MB in the end (delta: -39.4 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. [2020-10-26 04:18:26,959 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 41.9 MB. Free memory was 22.7 MB in the beginning and 22.6 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:18:26,960 INFO L168 Benchmark]: CACSL2BoogieTranslator took 541.95 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 27.4 MB in the beginning and 26.6 MB in the end (delta: 761.6 kB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:18:26,960 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.88 ms. Allocated memory is still 50.3 MB. Free memory was 26.6 MB in the beginning and 24.9 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:18:26,961 INFO L168 Benchmark]: Boogie Preprocessor took 32.15 ms. Allocated memory is still 50.3 MB. Free memory was 24.9 MB in the beginning and 23.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:18:26,962 INFO L168 Benchmark]: RCFGBuilder took 481.97 ms. Allocated memory is still 50.3 MB. Free memory was 23.4 MB in the beginning and 30.5 MB in the end (delta: -7.1 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB. [2020-10-26 04:18:26,963 INFO L168 Benchmark]: BuchiAutomizer took 4205.93 ms. Allocated memory was 50.3 MB in the beginning and 107.0 MB in the end (delta: 56.6 MB). Free memory was 30.3 MB in the beginning and 67.4 MB in the end (delta: -37.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. [2020-10-26 04:18:26,963 INFO L168 Benchmark]: Witness Printer took 4.22 ms. Allocated memory is still 107.0 MB. Free memory is still 67.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:18:26,969 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 41.9 MB. Free memory was 22.7 MB in the beginning and 22.6 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 541.95 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 27.4 MB in the beginning and 26.6 MB in the end (delta: 761.6 kB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.88 ms. Allocated memory is still 50.3 MB. Free memory was 26.6 MB in the beginning and 24.9 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.15 ms. Allocated memory is still 50.3 MB. Free memory was 24.9 MB in the beginning and 23.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 481.97 ms. Allocated memory is still 50.3 MB. Free memory was 23.4 MB in the beginning and 30.5 MB in the end (delta: -7.1 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4205.93 ms. Allocated memory was 50.3 MB in the beginning and 107.0 MB in the end (delta: 56.6 MB). Free memory was 30.3 MB in the beginning and 67.4 MB in the end (delta: -37.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.22 ms. Allocated memory is still 107.0 MB. Free memory is still 67.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (in_len)] + -1 * t and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 14 SDtfs, 22 SDslu, 24 SDs, 0 SdLazy, 48 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital201 mio100 ax100 hnf99 lsp108 ukn99 mio100 lsp35 div129 bol100 ite100 ukn100 eq167 hnf76 smp79 dnf417 smp57 tf100 neg95 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 381ms VariablesStem: 6 VariablesLoop: 5 DisjunctsStem: 2 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 108 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...