./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrchr_reverse_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ce4bb6f0-a48b-4546-9f27-bd4fcd110bb0/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ce4bb6f0-a48b-4546-9f27-bd4fcd110bb0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ce4bb6f0-a48b-4546-9f27-bd4fcd110bb0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ce4bb6f0-a48b-4546-9f27-bd4fcd110bb0/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrchr_reverse_alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ce4bb6f0-a48b-4546-9f27-bd4fcd110bb0/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ce4bb6f0-a48b-4546-9f27-bd4fcd110bb0/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a273450068a0d5a7644f3536efd5c3c568bd1daf ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 11:09:28,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 11:09:28,859 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 11:09:28,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 11:09:28,873 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 11:09:28,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 11:09:28,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 11:09:28,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 11:09:28,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 11:09:28,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 11:09:28,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 11:09:28,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 11:09:28,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 11:09:28,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 11:09:28,896 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 11:09:28,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 11:09:28,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 11:09:28,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 11:09:28,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 11:09:28,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 11:09:28,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 11:09:28,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 11:09:28,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 11:09:28,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 11:09:28,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 11:09:28,914 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 11:09:28,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 11:09:28,916 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 11:09:28,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 11:09:28,918 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 11:09:28,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 11:09:28,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 11:09:28,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 11:09:28,920 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 11:09:28,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 11:09:28,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 11:09:28,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 11:09:28,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 11:09:28,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 11:09:28,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 11:09:28,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 11:09:28,924 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ce4bb6f0-a48b-4546-9f27-bd4fcd110bb0/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 11:09:28,948 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 11:09:28,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 11:09:28,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 11:09:28,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 11:09:28,950 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 11:09:28,950 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 11:09:28,950 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 11:09:28,950 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 11:09:28,951 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 11:09:28,951 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 11:09:28,951 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 11:09:28,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 11:09:28,951 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 11:09:28,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 11:09:28,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 11:09:28,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 11:09:28,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 11:09:28,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 11:09:28,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 11:09:28,953 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 11:09:28,953 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 11:09:28,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 11:09:28,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 11:09:28,953 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 11:09:28,954 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 11:09:28,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 11:09:28,954 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 11:09:28,954 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 11:09:28,965 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 11:09:28,966 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_ce4bb6f0-a48b-4546-9f27-bd4fcd110bb0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a273450068a0d5a7644f3536efd5c3c568bd1daf [2019-11-20 11:09:29,128 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 11:09:29,136 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 11:09:29,139 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 11:09:29,140 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 11:09:29,141 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 11:09:29,141 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ce4bb6f0-a48b-4546-9f27-bd4fcd110bb0/bin/uautomizer/../../sv-benchmarks/c/termination-15/cstrchr_reverse_alloca.i [2019-11-20 11:09:29,192 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ce4bb6f0-a48b-4546-9f27-bd4fcd110bb0/bin/uautomizer/data/00ea6bd1f/abe498da9b9949c4bad99496d711bb13/FLAG350d0129d [2019-11-20 11:09:29,640 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 11:09:29,640 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ce4bb6f0-a48b-4546-9f27-bd4fcd110bb0/sv-benchmarks/c/termination-15/cstrchr_reverse_alloca.i [2019-11-20 11:09:29,648 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ce4bb6f0-a48b-4546-9f27-bd4fcd110bb0/bin/uautomizer/data/00ea6bd1f/abe498da9b9949c4bad99496d711bb13/FLAG350d0129d [2019-11-20 11:09:29,658 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ce4bb6f0-a48b-4546-9f27-bd4fcd110bb0/bin/uautomizer/data/00ea6bd1f/abe498da9b9949c4bad99496d711bb13 [2019-11-20 11:09:29,660 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 11:09:29,661 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 11:09:29,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 11:09:29,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 11:09:29,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 11:09:29,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:09:29" (1/1) ... [2019-11-20 11:09:29,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ac8c24b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:29, skipping insertion in model container [2019-11-20 11:09:29,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:09:29" (1/1) ... [2019-11-20 11:09:29,674 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 11:09:29,714 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 11:09:30,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:09:30,165 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 11:09:30,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:09:30,285 INFO L192 MainTranslator]: Completed translation [2019-11-20 11:09:30,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:30 WrapperNode [2019-11-20 11:09:30,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 11:09:30,287 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 11:09:30,287 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 11:09:30,287 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 11:09:30,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:30" (1/1) ... [2019-11-20 11:09:30,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:30" (1/1) ... [2019-11-20 11:09:30,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 11:09:30,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 11:09:30,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 11:09:30,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 11:09:30,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:30" (1/1) ... [2019-11-20 11:09:30,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:30" (1/1) ... [2019-11-20 11:09:30,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:30" (1/1) ... [2019-11-20 11:09:30,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:30" (1/1) ... [2019-11-20 11:09:30,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:30" (1/1) ... [2019-11-20 11:09:30,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:30" (1/1) ... [2019-11-20 11:09:30,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:30" (1/1) ... [2019-11-20 11:09:30,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 11:09:30,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 11:09:30,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 11:09:30,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 11:09:30,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce4bb6f0-a48b-4546-9f27-bd4fcd110bb0/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 [2019-11-20 11:09:30,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 11:09:30,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 11:09:30,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 11:09:30,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 11:09:30,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 11:09:30,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 11:09:30,652 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 11:09:30,653 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 11:09:30,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:09:30 BoogieIcfgContainer [2019-11-20 11:09:30,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 11:09:30,654 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 11:09:30,654 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 11:09:30,657 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 11:09:30,658 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 11:09:30,658 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 11:09:29" (1/3) ... [2019-11-20 11:09:30,660 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@793887f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:09:30, skipping insertion in model container [2019-11-20 11:09:30,660 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 11:09:30,661 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:09:30" (2/3) ... [2019-11-20 11:09:30,661 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@793887f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:09:30, skipping insertion in model container [2019-11-20 11:09:30,661 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 11:09:30,661 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:09:30" (3/3) ... [2019-11-20 11:09:30,663 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrchr_reverse_alloca.i [2019-11-20 11:09:30,712 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 11:09:30,712 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 11:09:30,713 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 11:09:30,713 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 11:09:30,713 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 11:09:30,713 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 11:09:30,713 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 11:09:30,713 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 11:09:30,727 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-20 11:09:30,749 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 11:09:30,749 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 11:09:30,749 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 11:09:30,754 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-20 11:09:30,754 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 11:09:30,755 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 11:09:30,755 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-20 11:09:30,756 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 11:09:30,756 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 11:09:30,757 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 11:09:30,757 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-20 11:09:30,757 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 11:09:30,763 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 7#L-1true havoc main_#res;havoc main_#t~nondet211, main_#t~malloc212.base, main_#t~malloc212.offset, main_#t~nondet213, main_#t~ret214.base, main_#t~ret214.offset, main_~length~0, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet211;havoc main_#t~nondet211; 8#L372true assume !(main_~length~0 < 1); 12#L372-2true call main_#t~malloc212.base, main_#t~malloc212.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc212.base, main_#t~malloc212.offset;call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset, 1);main_~nondetString~0.base, main_~nondetString~0.offset := main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1);cstrchr_#in~s.base, cstrchr_#in~s.offset, cstrchr_#in~c := main_~nondetString~0.base, main_~nondetString~0.offset, main_#t~nondet213;havoc cstrchr_#res.base, cstrchr_#res.offset;havoc cstrchr_#t~post208.base, cstrchr_#t~post208.offset, cstrchr_#t~mem205, cstrchr_#t~mem206, cstrchr_#t~short207, cstrchr_#t~mem209, cstrchr_#t~ite210.base, cstrchr_#t~ite210.offset, cstrchr_~s.base, cstrchr_~s.offset, cstrchr_~c;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#in~s.base, cstrchr_#in~s.offset;cstrchr_~c := cstrchr_#in~c; 9#L366-5true [2019-11-20 11:09:30,764 INFO L796 eck$LassoCheckResult]: Loop: 9#L366-5true call cstrchr_#t~mem205 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1);cstrchr_#t~short207 := 0 != cstrchr_#t~mem205; 4#L366-1true assume cstrchr_#t~short207;call cstrchr_#t~mem206 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1);cstrchr_#t~short207 := cstrchr_#t~mem206 != (if cstrchr_~c % 256 <= 127 then cstrchr_~c % 256 else cstrchr_~c % 256 - 256); 6#L366-3true assume !!cstrchr_#t~short207;havoc cstrchr_#t~mem205;havoc cstrchr_#t~mem206;havoc cstrchr_#t~short207;cstrchr_#t~post208.base, cstrchr_#t~post208.offset := cstrchr_~s.base, cstrchr_~s.offset;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#t~post208.base, cstrchr_#t~post208.offset - 1;havoc cstrchr_#t~post208.base, cstrchr_#t~post208.offset; 9#L366-5true [2019-11-20 11:09:30,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:09:30,771 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2019-11-20 11:09:30,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:09:30,781 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546258358] [2019-11-20 11:09:30,781 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:09:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:09:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:09:30,906 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:09:30,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:09:30,908 INFO L82 PathProgramCache]: Analyzing trace with hash 43797, now seen corresponding path program 1 times [2019-11-20 11:09:30,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:09:30,908 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435094392] [2019-11-20 11:09:30,908 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:09:30,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:09:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:09:30,933 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:09:30,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:09:30,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815409, now seen corresponding path program 1 times [2019-11-20 11:09:30,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:09:30,936 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071462323] [2019-11-20 11:09:30,936 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:09:30,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:09:30,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:09:30,994 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:09:31,121 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2019-11-20 11:09:31,304 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2019-11-20 11:09:31,481 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-11-20 11:09:31,561 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 11:09:31,562 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 11:09:31,562 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 11:09:31,562 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 11:09:31,563 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 11:09:31,563 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:09:31,563 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 11:09:31,563 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 11:09:31,563 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrchr_reverse_alloca.i_Iteration1_Lasso [2019-11-20 11:09:31,564 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 11:09:31,564 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 11:09:31,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:09:31,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:09:31,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:09:31,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:09:31,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:09:31,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:09:31,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:09:31,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:09:31,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:09:31,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:09:31,762 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2019-11-20 11:09:31,875 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2019-11-20 11:09:31,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:09:31,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:09:31,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:09:31,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:09:31,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:09:31,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:09:31,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:09:32,477 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2019-11-20 11:09:32,536 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 11:09:32,541 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce4bb6f0-a48b-4546-9f27-bd4fcd110bb0/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) [2019-11-20 11:09:32,555 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:09:32,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:09:32,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 11:09:32,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:09:32,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:09:32,559 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:09:32,561 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 11:09:32,561 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 11:09:32,564 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce4bb6f0-a48b-4546-9f27-bd4fcd110bb0/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) [2019-11-20 11:09:32,592 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 [2019-11-20 11:09:32,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:09:32,593 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 11:09:32,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:09:32,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:09:32,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:09:32,594 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 11:09:32,594 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 [2019-11-20 11:09:32,597 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce4bb6f0-a48b-4546-9f27-bd4fcd110bb0/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) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:09:32,612 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 [2019-11-20 11:09:32,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:09:32,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:09:32,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:09:32,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:09:32,618 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 11:09:32,618 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 11:09:32,623 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce4bb6f0-a48b-4546-9f27-bd4fcd110bb0/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) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:09:32,635 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 [2019-11-20 11:09:32,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:09:32,637 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 11:09:32,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:09:32,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:09:32,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:09:32,638 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 11:09:32,638 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 11:09:32,640 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce4bb6f0-a48b-4546-9f27-bd4fcd110bb0/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) [2019-11-20 11:09:32,654 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 [2019-11-20 11:09:32,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:09:32,656 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 11:09:32,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:09:32,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:09:32,657 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:09:32,657 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 11:09:32,657 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 [2019-11-20 11:09:32,659 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce4bb6f0-a48b-4546-9f27-bd4fcd110bb0/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) [2019-11-20 11:09:32,667 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:09:32,669 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:09:32,669 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 11:09:32,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:09:32,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:09:32,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:09:32,670 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 11:09:32,670 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 11:09:32,672 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce4bb6f0-a48b-4546-9f27-bd4fcd110bb0/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) [2019-11-20 11:09:32,685 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 [2019-11-20 11:09:32,688 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:09:32,688 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 11:09:32,689 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:09:32,689 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:09:32,689 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:09:32,690 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 11:09:32,690 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 11:09:32,693 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce4bb6f0-a48b-4546-9f27-bd4fcd110bb0/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 [2019-11-20 11:09:32,715 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 [2019-11-20 11:09:32,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:09:32,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:09:32,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:09:32,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:09:32,725 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 11:09:32,725 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 11:09:32,730 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce4bb6f0-a48b-4546-9f27-bd4fcd110bb0/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:09:32,744 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 [2019-11-20 11:09:32,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:09:32,748 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 11:09:32,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:09:32,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:09:32,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:09:32,749 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 11:09:32,749 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 11:09:32,751 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce4bb6f0-a48b-4546-9f27-bd4fcd110bb0/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:09:32,758 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 [2019-11-20 11:09:32,760 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:09:32,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:09:32,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:09:32,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:09:32,763 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 11:09:32,764 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 11:09:32,768 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce4bb6f0-a48b-4546-9f27-bd4fcd110bb0/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:09:32,792 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 [2019-11-20 11:09:32,794 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:09:32,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:09:32,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:09:32,794 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:09:32,803 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 11:09:32,803 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 11:09:32,816 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 11:09:32,863 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2019-11-20 11:09:32,863 INFO L444 ModelExtractionUtils]: 14 out of 25 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce4bb6f0-a48b-4546-9f27-bd4fcd110bb0/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:09:32,960 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 11:09:32,968 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 11:09:32,969 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 11:09:32,969 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrchr_~s.offset, v_rep(select #length ULTIMATE.start_cstrchr_~s.base)_1) = 2*ULTIMATE.start_cstrchr_~s.offset + 1*v_rep(select #length ULTIMATE.start_cstrchr_~s.base)_1 Supporting invariants [] [2019-11-20 11:09:32,991 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-11-20 11:09:33,001 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 11:09:33,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:09:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:09:33,065 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 11:09:33,067 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:09:33,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:09:33,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 11:09:33,082 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:09:33,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:09:33,115 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 11:09:33,116 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 3 states. [2019-11-20 11:09:33,168 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 3 states. Result 31 states and 39 transitions. Complement of second has 5 states. [2019-11-20 11:09:33,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 11:09:33,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 11:09:33,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2019-11-20 11:09:33,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 3 letters. [2019-11-20 11:09:33,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 11:09:33,174 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 7 letters. Loop has 3 letters. [2019-11-20 11:09:33,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 11:09:33,174 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 6 letters. [2019-11-20 11:09:33,175 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 11:09:33,175 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2019-11-20 11:09:33,178 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 11:09:33,181 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2019-11-20 11:09:33,182 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 11:09:33,182 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 11:09:33,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 11:09:33,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 11:09:33,183 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:09:33,183 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:09:33,183 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:09:33,183 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 11:09:33,184 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 11:09:33,184 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 11:09:33,184 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 11:09:33,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 11:09:33 BoogieIcfgContainer [2019-11-20 11:09:33,190 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 11:09:33,190 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 11:09:33,190 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 11:09:33,190 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 11:09:33,191 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:09:30" (3/4) ... [2019-11-20 11:09:33,194 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 11:09:33,194 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 11:09:33,196 INFO L168 Benchmark]: Toolchain (without parser) took 3534.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -114.8 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2019-11-20 11:09:33,196 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:09:33,197 INFO L168 Benchmark]: CACSL2BoogieTranslator took 624.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -168.9 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. [2019-11-20 11:09:33,198 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-20 11:09:33,198 INFO L168 Benchmark]: Boogie Preprocessor took 21.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-20 11:09:33,199 INFO L168 Benchmark]: RCFGBuilder took 295.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-11-20 11:09:33,200 INFO L168 Benchmark]: BuchiAutomizer took 2535.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2019-11-20 11:09:33,200 INFO L168 Benchmark]: Witness Printer took 4.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:09:33,212 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 624.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -168.9 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 295.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2535.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 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 2 * s + unknown-#length-unknown[s] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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: 12 SDtfs, 14 SDslu, 7 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital185 mio100 ax100 hnf98 lsp98 ukn68 mio100 lsp37 div150 bol100 ite100 ukn100 eq155 hnf73 smp100 dnf784 smp27 tf100 neg95 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...