./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-dietlibc/wcsrchr.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-dietlibc/wcsrchr.i -s /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/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 68f8eea80a577660110c4d18097f51970ea54e3a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:01:22,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:01:22,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:01:23,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:01:23,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:01:23,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:01:23,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:01:23,083 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:01:23,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:01:23,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:01:23,099 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:01:23,101 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:01:23,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:01:23,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:01:23,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:01:23,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:01:23,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:01:23,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:01:23,124 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:01:23,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:01:23,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:01:23,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:01:23,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:01:23,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:01:23,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:01:23,150 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:01:23,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:01:23,152 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:01:23,153 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:01:23,156 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:01:23,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:01:23,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:01:23,158 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:01:23,159 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:01:23,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:01:23,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:01:23,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:01:23,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:01:23,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:01:23,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:01:23,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:01:23,164 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-12-01 16:01:23,196 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:01:23,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:01:23,198 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:01:23,198 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:01:23,199 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 16:01:23,199 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 16:01:23,199 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 16:01:23,200 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 16:01:23,200 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 16:01:23,200 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 16:01:23,200 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 16:01:23,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:01:23,201 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 16:01:23,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:01:23,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:01:23,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 16:01:23,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 16:01:23,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 16:01:23,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:01:23,203 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 16:01:23,203 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:01:23,204 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 16:01:23,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:01:23,204 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 16:01:23,205 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 16:01:23,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:01:23,205 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 16:01:23,206 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 16:01:23,206 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 16:01:23,207 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 16:01:23,207 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68f8eea80a577660110c4d18097f51970ea54e3a [2020-12-01 16:01:23,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:01:23,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:01:23,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:01:23,569 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:01:23,570 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:01:23,581 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/bin/uautomizer/../../sv-benchmarks/c/termination-dietlibc/wcsrchr.i [2020-12-01 16:01:23,679 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/bin/uautomizer/data/6f81b96a6/13c4db5374b747b296b345a02af58b78/FLAG13108f6e6 [2020-12-01 16:01:24,381 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:01:24,382 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/sv-benchmarks/c/termination-dietlibc/wcsrchr.i [2020-12-01 16:01:24,400 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/bin/uautomizer/data/6f81b96a6/13c4db5374b747b296b345a02af58b78/FLAG13108f6e6 [2020-12-01 16:01:24,671 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/bin/uautomizer/data/6f81b96a6/13c4db5374b747b296b345a02af58b78 [2020-12-01 16:01:24,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:01:24,676 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:01:24,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:01:24,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:01:24,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:01:24,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:01:24" (1/1) ... [2020-12-01 16:01:24,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@406207a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:01:24, skipping insertion in model container [2020-12-01 16:01:24,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:01:24" (1/1) ... [2020-12-01 16:01:24,702 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:01:24,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:01:25,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:01:25,199 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:01:25,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:01:25,303 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:01:25,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:01:25 WrapperNode [2020-12-01 16:01:25,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:01:25,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:01:25,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:01:25,306 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:01:25,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:01:25" (1/1) ... [2020-12-01 16:01:25,349 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:01:25" (1/1) ... [2020-12-01 16:01:25,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:01:25,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:01:25,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:01:25,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:01:25,384 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:01:25" (1/1) ... [2020-12-01 16:01:25,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:01:25" (1/1) ... [2020-12-01 16:01:25,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:01:25" (1/1) ... [2020-12-01 16:01:25,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:01:25" (1/1) ... [2020-12-01 16:01:25,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:01:25" (1/1) ... [2020-12-01 16:01:25,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:01:25" (1/1) ... [2020-12-01 16:01:25,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:01:25" (1/1) ... [2020-12-01 16:01:25,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:01:25,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:01:25,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:01:25,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:01:25,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:01:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:25,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 16:01:25,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 16:01:25,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:01:25,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 16:01:25,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:01:25,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:01:25,773 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:01:25,774 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-01 16:01:25,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:01:25 BoogieIcfgContainer [2020-12-01 16:01:25,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:01:25,794 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 16:01:25,794 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 16:01:25,798 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 16:01:25,799 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 16:01:25,799 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 04:01:24" (1/3) ... [2020-12-01 16:01:25,809 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75e38906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 04:01:25, skipping insertion in model container [2020-12-01 16:01:25,809 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 16:01:25,809 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:01:25" (2/3) ... [2020-12-01 16:01:25,810 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75e38906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 04:01:25, skipping insertion in model container [2020-12-01 16:01:25,810 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 16:01:25,810 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:01:25" (3/3) ... [2020-12-01 16:01:25,812 INFO L389 chiAutomizerObserver]: Analyzing ICFG wcsrchr.i [2020-12-01 16:01:25,897 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 16:01:25,898 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 16:01:25,898 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 16:01:25,898 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 16:01:25,898 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 16:01:25,899 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 16:01:25,899 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 16:01:25,899 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 16:01:25,914 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-12-01 16:01:25,938 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-12-01 16:01:25,939 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 16:01:25,939 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 16:01:25,946 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-12-01 16:01:25,946 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-12-01 16:01:25,946 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 16:01:25,947 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-12-01 16:01:25,948 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-12-01 16:01:25,949 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 16:01:25,949 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 16:01:25,949 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-12-01 16:01:25,950 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-12-01 16:01:25,957 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~ret8.base, main_#t~ret8.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~needle~0;main_~in_len~0 := main_#t~nondet5;havoc main_#t~nondet5; 6#L515true assume !(main_~in_len~0 < 1);call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnStack(4 * main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + 4 * (main_~in_len~0 - 1), 4);main_~needle~0 := main_#t~nondet7;havoc main_#t~nondet7;wcsrchr_#in~wcs.base, wcsrchr_#in~wcs.offset, wcsrchr_#in~wc := main_~hay~0.base, main_~hay~0.offset, main_~needle~0;havoc wcsrchr_#res.base, wcsrchr_#res.offset;havoc wcsrchr_#t~mem3, wcsrchr_#t~pre2.base, wcsrchr_#t~pre2.offset, wcsrchr_#t~mem4, wcsrchr_~wcs.base, wcsrchr_~wcs.offset, wcsrchr_~wc, wcsrchr_~last~0.base, wcsrchr_~last~0.offset;wcsrchr_~wcs.base, wcsrchr_~wcs.offset := wcsrchr_#in~wcs.base, wcsrchr_#in~wcs.offset;wcsrchr_~wc := wcsrchr_#in~wc;wcsrchr_~last~0.base, wcsrchr_~last~0.offset := 0, 0; 7#L508-4true [2020-12-01 16:01:25,958 INFO L796 eck$LassoCheckResult]: Loop: 7#L508-4true call wcsrchr_#t~mem4 := read~int(wcsrchr_~wcs.base, wcsrchr_~wcs.offset, 4); 12#L508-1true assume !!(0 != wcsrchr_#t~mem4);havoc wcsrchr_#t~mem4;call wcsrchr_#t~mem3 := read~int(wcsrchr_~wcs.base, wcsrchr_~wcs.offset, 4); 8#L509true assume wcsrchr_#t~mem3 == wcsrchr_~wc;havoc wcsrchr_#t~mem3;wcsrchr_~last~0.base, wcsrchr_~last~0.offset := wcsrchr_~wcs.base, wcsrchr_~wcs.offset; 4#L508-3true wcsrchr_#t~pre2.base, wcsrchr_#t~pre2.offset := wcsrchr_~wcs.base, 4 + wcsrchr_~wcs.offset;wcsrchr_~wcs.base, wcsrchr_~wcs.offset := wcsrchr_~wcs.base, 4 + wcsrchr_~wcs.offset;havoc wcsrchr_#t~pre2.base, wcsrchr_#t~pre2.offset; 7#L508-4true [2020-12-01 16:01:25,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:01:25,965 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2020-12-01 16:01:25,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:01:25,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241222325] [2020-12-01 16:01:25,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:01:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:01:26,153 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:01:26,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:01:26,198 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:01:26,234 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:01:26,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:01:26,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1267210, now seen corresponding path program 1 times [2020-12-01 16:01:26,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:01:26,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842467228] [2020-12-01 16:01:26,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:01:26,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:01:26,271 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:01:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:01:26,280 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:01:26,289 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:01:26,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:01:26,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1806876973, now seen corresponding path program 1 times [2020-12-01 16:01:26,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:01:26,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445336834] [2020-12-01 16:01:26,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:01:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:01:26,340 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:01:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:01:26,364 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:01:26,371 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:01:26,719 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2020-12-01 16:01:26,813 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 16:01:26,814 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 16:01:26,814 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 16:01:26,815 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 16:01:26,815 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 16:01:26,815 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:26,815 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 16:01:26,815 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 16:01:26,816 INFO L133 ssoRankerPreferences]: Filename of dumped script: wcsrchr.i_Iteration1_Lasso [2020-12-01 16:01:26,816 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 16:01:26,816 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 16:01:26,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:26,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:26,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:26,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:26,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:26,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:26,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:26,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:27,111 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-01 16:01:27,232 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-12-01 16:01:27,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:27,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:27,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:27,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:27,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:27,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:01:27,728 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 16:01:27,733 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 16:01:27,745 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 [2020-12-01 16:01:27,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:01:27,748 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:01:27,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:01:27,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:01:27,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:01:27,751 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:01:27,752 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:27,761 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:27,814 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 [2020-12-01 16:01:27,816 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:01:27,817 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:01:27,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:01:27,817 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:01:27,817 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:01:27,819 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:01:27,820 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 16:01:27,833 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/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 [2020-12-01 16:01:27,862 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 [2020-12-01 16:01:27,865 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:01:27,865 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:01:27,865 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:01:27,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:01:27,866 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:01:27,867 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:01:27,867 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 16:01:27,893 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/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 [2020-12-01 16:01:27,930 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 [2020-12-01 16:01:27,933 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:01:27,933 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:01:27,933 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:01:27,933 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:01:27,933 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:01:27,935 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:01:27,935 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 16:01:27,957 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:27,999 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 [2020-12-01 16:01:28,001 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:01:28,001 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:01:28,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:01:28,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:01:28,002 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:01:28,003 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:01:28,003 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 16:01:28,023 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/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) [2020-12-01 16:01:28,086 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 [2020-12-01 16:01:28,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:01:28,089 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:01:28,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:01:28,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:01:28,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:01:28,091 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:01:28,091 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:28,102 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:28,139 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 [2020-12-01 16:01:28,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:01:28,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:01:28,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:01:28,142 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:01:28,146 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 16:01:28,147 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 16:01:28,169 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/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) [2020-12-01 16:01:28,222 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 [2020-12-01 16:01:28,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:01:28,225 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:01:28,225 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:01:28,225 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:01:28,229 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 16:01:28,229 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:28,250 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/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 [2020-12-01 16:01:28,285 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 [2020-12-01 16:01:28,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:01:28,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:01:28,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:01:28,287 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:01:28,304 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 16:01:28,309 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 16:01:28,326 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/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) [2020-12-01 16:01:28,383 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 [2020-12-01 16:01:28,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:01:28,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:01:28,387 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-12-01 16:01:28,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:28,413 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2020-12-01 16:01:28,414 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-12-01 16:01:28,447 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/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 [2020-12-01 16:01:28,477 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 [2020-12-01 16:01:28,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:01:28,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:01:28,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:01:28,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:01:28,488 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 16:01:28,488 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 16:01:28,509 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/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 [2020-12-01 16:01:28,547 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 [2020-12-01 16:01:28,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:01:28,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:01:28,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:01:28,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:01:28,562 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 16:01:28,563 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 16:01:28,593 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 16:01:28,646 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 [2020-12-01 16:01:28,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:01:28,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:01:28,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:01:28,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:01:28,661 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 16:01:28,661 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:28,685 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 16:01:28,718 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-12-01 16:01:28,718 INFO L444 ModelExtractionUtils]: 19 out of 28 variables were initially zero. Simplification set additionally 6 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60e76228-219a-4550-ad8f-04889c5ea432/bin/uautomizer/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:01:28,810 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 16:01:28,843 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 16:01:28,844 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 16:01:28,844 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc6.base)_1, ULTIMATE.start_wcsrchr_~wcs.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc6.base)_1 - 1*ULTIMATE.start_wcsrchr_~wcs.offset Supporting invariants [] [2020-12-01 16:01:28,930 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2020-12-01 16:01:28,941 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 16:01:29,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:01:29,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:01:29,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 16:01:29,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:01:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:01:29,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 16:01:29,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:01:29,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:01:29,101 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 [2020-12-01 16:01:29,103 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 3 states. [2020-12-01 16:01:29,179 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 3 states. Result 26 states and 30 transitions. Complement of second has 6 states. [2020-12-01 16:01:29,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-12-01 16:01:29,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-12-01 16:01:29,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2020-12-01 16:01:29,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 4 letters. [2020-12-01 16:01:29,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:01:29,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 4 letters. [2020-12-01 16:01:29,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:01:29,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 8 letters. [2020-12-01 16:01:29,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:01:29,188 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 30 transitions. [2020-12-01 16:01:29,190 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 16:01:29,193 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2020-12-01 16:01:29,195 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-12-01 16:01:29,195 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-12-01 16:01:29,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-12-01 16:01:29,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 16:01:29,196 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 16:01:29,196 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 16:01:29,196 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 16:01:29,197 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 16:01:29,197 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-12-01 16:01:29,197 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 16:01:29,197 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-12-01 16:01:29,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 04:01:29 BoogieIcfgContainer [2020-12-01 16:01:29,203 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 16:01:29,204 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:01:29,204 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:01:29,205 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:01:29,205 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:01:25" (3/4) ... [2020-12-01 16:01:29,209 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 16:01:29,209 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:01:29,210 INFO L168 Benchmark]: Toolchain (without parser) took 4533.82 ms. Allocated memory was 86.0 MB in the beginning and 125.8 MB in the end (delta: 39.8 MB). Free memory was 53.1 MB in the beginning and 53.1 MB in the end (delta: 48.8 kB). Peak memory consumption was 38.6 MB. Max. memory is 16.1 GB. [2020-12-01 16:01:29,211 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 86.0 MB. Free memory was 60.4 MB in the beginning and 60.4 MB in the end (delta: 28.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:01:29,212 INFO L168 Benchmark]: CACSL2BoogieTranslator took 626.76 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 53.1 MB in the beginning and 72.5 MB in the end (delta: -19.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:01:29,213 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.08 ms. Allocated memory is still 104.9 MB. Free memory was 72.5 MB in the beginning and 71.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:01:29,214 INFO L168 Benchmark]: Boogie Preprocessor took 41.17 ms. Allocated memory is still 104.9 MB. Free memory was 70.5 MB in the beginning and 69.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:01:29,215 INFO L168 Benchmark]: RCFGBuilder took 361.36 ms. Allocated memory is still 104.9 MB. Free memory was 69.5 MB in the beginning and 55.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 16:01:29,216 INFO L168 Benchmark]: BuchiAutomizer took 3409.73 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 55.8 MB in the beginning and 53.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 24.3 MB. Max. memory is 16.1 GB. [2020-12-01 16:01:29,216 INFO L168 Benchmark]: Witness Printer took 4.86 ms. Allocated memory is still 125.8 MB. Free memory is still 53.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:01:29,221 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 86.0 MB. Free memory was 60.4 MB in the beginning and 60.4 MB in the end (delta: 28.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 626.76 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 53.1 MB in the beginning and 72.5 MB in the end (delta: -19.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.08 ms. Allocated memory is still 104.9 MB. Free memory was 72.5 MB in the beginning and 71.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.17 ms. Allocated memory is still 104.9 MB. Free memory was 70.5 MB in the beginning and 69.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 361.36 ms. Allocated memory is still 104.9 MB. Free memory was 69.5 MB in the beginning and 55.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3409.73 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 55.8 MB in the beginning and 53.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 24.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.86 ms. Allocated memory is still 125.8 MB. Free memory is still 53.1 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*sizeof(int))] + -1 * wcs and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 10 SDslu, 3 SDs, 0 SdLazy, 11 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital139 mio100 ax100 hnf100 lsp95 ukn88 mio100 lsp45 div100 bol100 ite100 ukn100 eq188 hnf89 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 78ms VariablesStem: 3 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 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...