./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-dietlibc/strrchr_short.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_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-dietlibc/strrchr_short.i -s /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/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 98f62af880b69d3051603379cc048811fab2d4d7 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:38:58,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:38:58,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:38:58,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:38:58,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:38:58,275 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:38:58,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:38:58,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:38:58,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:38:58,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:38:58,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:38:58,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:38:58,318 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:38:58,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:38:58,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:38:58,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:38:58,329 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:38:58,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:38:58,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:38:58,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:38:58,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:38:58,347 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:38:58,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:38:58,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:38:58,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:38:58,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:38:58,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:38:58,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:38:58,376 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:38:58,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:38:58,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:38:58,380 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:38:58,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:38:58,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:38:58,386 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:38:58,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:38:58,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:38:58,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:38:58,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:38:58,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:38:58,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:38:58,396 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-12-01 15:38:58,457 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:38:58,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:38:58,459 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:38:58,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:38:58,459 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:38:58,460 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 15:38:58,460 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 15:38:58,460 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 15:38:58,460 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 15:38:58,461 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 15:38:58,461 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 15:38:58,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:38:58,462 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:38:58,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:38:58,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:38:58,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 15:38:58,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 15:38:58,463 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 15:38:58,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:38:58,463 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 15:38:58,464 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:38:58,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 15:38:58,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:38:58,464 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:38:58,465 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 15:38:58,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:38:58,465 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:38:58,465 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:38:58,466 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 15:38:58,467 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 15:38:58,467 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_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98f62af880b69d3051603379cc048811fab2d4d7 [2020-12-01 15:38:58,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:38:58,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:38:58,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:38:58,833 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:38:58,834 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:38:58,835 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/bin/uautomizer/../../sv-benchmarks/c/termination-dietlibc/strrchr_short.i [2020-12-01 15:38:58,957 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/bin/uautomizer/data/3e87b0f88/9dc2973be6de4ddd850ff2e16b460232/FLAG6e5f5383e [2020-12-01 15:38:59,637 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:38:59,638 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/sv-benchmarks/c/termination-dietlibc/strrchr_short.i [2020-12-01 15:38:59,657 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/bin/uautomizer/data/3e87b0f88/9dc2973be6de4ddd850ff2e16b460232/FLAG6e5f5383e [2020-12-01 15:38:59,897 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/bin/uautomizer/data/3e87b0f88/9dc2973be6de4ddd850ff2e16b460232 [2020-12-01 15:38:59,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:38:59,904 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:38:59,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:38:59,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:38:59,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:38:59,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:38:59" (1/1) ... [2020-12-01 15:38:59,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55ab8ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:38:59, skipping insertion in model container [2020-12-01 15:38:59,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:38:59" (1/1) ... [2020-12-01 15:38:59,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:39:00,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:39:00,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:39:00,504 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:39:00,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:39:00,655 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:39:00,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:00 WrapperNode [2020-12-01 15:39:00,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:39:00,657 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:39:00,657 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:39:00,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:39:00,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:00" (1/1) ... [2020-12-01 15:39:00,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:00" (1/1) ... [2020-12-01 15:39:00,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:39:00,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:39:00,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:39:00,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:39:00,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:00" (1/1) ... [2020-12-01 15:39:00,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:00" (1/1) ... [2020-12-01 15:39:00,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:00" (1/1) ... [2020-12-01 15:39:00,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:00" (1/1) ... [2020-12-01 15:39:00,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:00" (1/1) ... [2020-12-01 15:39:00,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:00" (1/1) ... [2020-12-01 15:39:00,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:00" (1/1) ... [2020-12-01 15:39:00,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:39:00,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:39:00,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:39:00,765 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:39:00,766 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/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 15:39:00,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 15:39:00,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 15:39:00,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:39:00,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:39:00,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:39:00,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:39:01,138 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:39:01,140 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-01 15:39:01,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:39:01 BoogieIcfgContainer [2020-12-01 15:39:01,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:39:01,144 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 15:39:01,144 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 15:39:01,154 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 15:39:01,155 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:39:01,156 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 03:38:59" (1/3) ... [2020-12-01 15:39:01,157 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d67ab3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:39:01, skipping insertion in model container [2020-12-01 15:39:01,158 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:39:01,158 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:00" (2/3) ... [2020-12-01 15:39:01,159 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d67ab3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:39:01, skipping insertion in model container [2020-12-01 15:39:01,159 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:39:01,159 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:39:01" (3/3) ... [2020-12-01 15:39:01,161 INFO L389 chiAutomizerObserver]: Analyzing ICFG strrchr_short.i [2020-12-01 15:39:01,259 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 15:39:01,260 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 15:39:01,260 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 15:39:01,260 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:39:01,261 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:39:01,261 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 15:39:01,261 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:39:01,261 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 15:39:01,278 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-12-01 15:39:01,334 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-12-01 15:39:01,335 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:39:01,335 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:39:01,342 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-12-01 15:39:01,343 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-12-01 15:39:01,343 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 15:39:01,343 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-12-01 15:39:01,345 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-12-01 15:39:01,345 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:39:01,345 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:39:01,346 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-12-01 15:39:01,346 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-12-01 15:39:01,355 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_~in~0.base, main_~in~0.offset, main_~the_int~0;main_~in_len~0 := main_#t~nondet5;havoc main_#t~nondet5; 13#L517true assume !(main_~in_len~0 < 1);call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~the_int~0 := main_#t~nondet7;havoc main_#t~nondet7;strrchr_#in~t.base, strrchr_#in~t.offset, strrchr_#in~c := main_~in~0.base, main_~in~0.offset, main_~the_int~0;havoc strrchr_#res.base, strrchr_#res.offset;havoc strrchr_#t~mem2, strrchr_#t~mem3, strrchr_#t~pre4.base, strrchr_#t~pre4.offset, strrchr_~t.base, strrchr_~t.offset, strrchr_~c, strrchr_~ch~0, strrchr_~l~0.base, strrchr_~l~0.offset;strrchr_~t.base, strrchr_~t.offset := strrchr_#in~t.base, strrchr_#in~t.offset;strrchr_~c := strrchr_#in~c;havoc strrchr_~ch~0;strrchr_~l~0.base, strrchr_~l~0.offset := 0, 0;strrchr_~ch~0 := (if strrchr_~c % 256 <= 127 then strrchr_~c % 256 else strrchr_~c % 256 - 256); 7#L510-2true [2020-12-01 15:39:01,369 INFO L796 eck$LassoCheckResult]: Loop: 7#L510-2true assume !false;call strrchr_#t~mem2 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 14#L511true assume strrchr_#t~mem2 == strrchr_~ch~0;havoc strrchr_#t~mem2;strrchr_~l~0.base, strrchr_~l~0.offset := strrchr_~t.base, strrchr_~t.offset; 6#L511-2true call strrchr_#t~mem3 := read~int(strrchr_~t.base, strrchr_~t.offset, 1); 9#L511-3true assume !(0 == strrchr_#t~mem3);havoc strrchr_#t~mem3;strrchr_#t~pre4.base, strrchr_#t~pre4.offset := strrchr_~t.base, 1 + strrchr_~t.offset;strrchr_~t.base, strrchr_~t.offset := strrchr_~t.base, 1 + strrchr_~t.offset;havoc strrchr_#t~pre4.base, strrchr_#t~pre4.offset; 7#L510-2true [2020-12-01 15:39:01,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:39:01,377 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2020-12-01 15:39:01,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:39:01,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261053067] [2020-12-01 15:39:01,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:39:01,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:39:01,597 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:39:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:39:01,637 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:39:01,663 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:39:01,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:39:01,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1388393, now seen corresponding path program 1 times [2020-12-01 15:39:01,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:39:01,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042471944] [2020-12-01 15:39:01,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:39:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:39:01,680 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:39:01,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:39:01,690 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:39:01,694 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:39:01,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:39:01,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1806998156, now seen corresponding path program 1 times [2020-12-01 15:39:01,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:39:01,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605672137] [2020-12-01 15:39:01,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:39:01,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:39:01,740 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:39:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:39:01,782 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:39:01,791 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:39:02,239 WARN L197 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2020-12-01 15:39:02,402 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-12-01 15:39:02,433 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:39:02,434 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:39:02,434 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:39:02,434 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:39:02,435 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:39:02,435 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:39:02,435 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:39:02,435 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:39:02,436 INFO L133 ssoRankerPreferences]: Filename of dumped script: strrchr_short.i_Iteration1_Lasso [2020-12-01 15:39:02,436 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:39:02,436 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:39:02,476 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 15:39:02,484 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 15:39:02,489 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 15:39:02,494 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 15:39:02,498 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 15:39:02,503 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 15:39:02,507 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 15:39:02,514 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 15:39:02,518 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 15:39:02,522 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 15:39:02,527 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 15:39:03,082 WARN L197 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-12-01 15:39:03,182 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 15:39:03,188 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 15:39:03,191 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 15:39:03,429 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-12-01 15:39:03,811 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2020-12-01 15:39:03,940 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:39:03,946 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/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 15:39:03,965 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 [2020-12-01 15:39:03,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:39:03,968 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:39:03,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:39:03,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:39:03,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:39:03,972 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:39:03,973 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:39:03,991 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/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) [2020-12-01 15:39:04,034 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 15:39:04,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:39:04,036 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:39:04,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:39:04,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:39:04,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:39:04,041 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:39:04,041 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:39:04,059 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/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 15:39:04,107 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 15:39:04,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:39:04,110 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:39:04,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:39:04,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:39:04,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:39:04,112 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:39:04,112 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:39:04,148 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/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 15:39:04,181 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 15:39:04,184 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:39:04,184 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:39:04,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:39:04,185 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:39:04,185 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:39:04,186 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:39:04,186 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:39:04,193 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/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 15:39:04,221 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 15:39:04,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:39:04,223 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:39:04,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:39:04,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:39:04,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:39:04,225 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:39:04,225 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:39:04,229 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:39:04,283 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 15:39:04,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:39:04,285 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:39:04,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:39:04,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:39:04,286 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:39:04,287 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:39:04,287 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:39:04,309 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/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) [2020-12-01 15:39:04,363 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 15:39:04,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:39:04,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:39:04,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:39:04,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:39:04,373 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:39:04,373 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:39:04,383 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/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 15:39:04,434 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 15:39:04,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:39:04,436 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:39:04,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:39:04,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:39:04,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:39:04,438 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:39:04,438 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:39:04,449 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:39:04,498 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 15:39:04,501 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:39:04,501 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:39:04,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:39:04,502 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:39:04,502 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:39:04,504 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:39:04,504 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:39:04,521 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/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 [2020-12-01 15:39:04,563 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 15:39:04,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:39:04,566 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:39:04,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:39:04,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:39:04,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:39:04,567 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:39:04,568 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:39:04,601 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/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) [2020-12-01 15:39:04,654 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 [2020-12-01 15:39:04,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:39:04,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:39:04,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:39:04,658 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:39:04,672 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:39:04,672 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:39:04,701 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/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) [2020-12-01 15:39:04,749 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 15:39:04,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:39:04,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:39:04,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:39:04,752 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:39:04,759 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:39:04,760 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:39:04,783 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/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) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:39:04,826 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 15:39:04,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:39:04,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:39:04,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:39:04,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:39:04,832 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:39:04,832 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:39:04,849 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/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) [2020-12-01 15:39:04,902 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 15:39:04,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:39:04,905 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:39:04,905 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-12-01 15:39:04,905 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:39:04,939 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2020-12-01 15:39:04,940 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-12-01 15:39:04,985 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/bin/uautomizer/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:39:05,038 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 15:39:05,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:39:05,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:39:05,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:39:05,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:39:05,056 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:39:05,056 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:39:05,077 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:39:05,158 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-12-01 15:39:05,158 INFO L444 ModelExtractionUtils]: 17 out of 28 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_04d8acfb-d5d5-460e-8ed8-27bdba8265b7/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:39:05,252 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:39:05,271 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:39:05,271 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:39:05,272 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc6.base)_1, ULTIMATE.start_strrchr_~t.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc6.base)_1 - 1*ULTIMATE.start_strrchr_~t.offset Supporting invariants [] [2020-12-01 15:39:05,331 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2020-12-01 15:39:05,341 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 15:39:05,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:39:05,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:39:05,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 15:39:05,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:39:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:39:05,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 15:39:05,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:39:05,492 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 15:39:05,515 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 15:39:05,517 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 3 states. [2020-12-01 15:39:05,612 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 3 states. Result 24 states and 30 transitions. Complement of second has 6 states. [2020-12-01 15:39:05,613 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 15:39:05,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-12-01 15:39:05,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2020-12-01 15:39:05,619 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 4 letters. [2020-12-01 15:39:05,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:39:05,621 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 4 letters. [2020-12-01 15:39:05,621 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:39:05,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 8 letters. [2020-12-01 15:39:05,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:39:05,630 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 30 transitions. [2020-12-01 15:39:05,638 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:39:05,641 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2020-12-01 15:39:05,644 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-12-01 15:39:05,644 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-12-01 15:39:05,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-12-01 15:39:05,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:39:05,645 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:39:05,646 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:39:05,646 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:39:05,646 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 15:39:05,646 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:39:05,646 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:39:05,646 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-12-01 15:39:05,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 03:39:05 BoogieIcfgContainer [2020-12-01 15:39:05,655 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 15:39:05,656 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:39:05,656 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:39:05,656 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:39:05,657 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:39:01" (3/4) ... [2020-12-01 15:39:05,661 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:39:05,661 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:39:05,662 INFO L168 Benchmark]: Toolchain (without parser) took 5757.39 ms. Allocated memory was 96.5 MB in the beginning and 132.1 MB in the end (delta: 35.7 MB). Free memory was 70.1 MB in the beginning and 51.7 MB in the end (delta: 18.4 MB). Peak memory consumption was 52.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:39:05,663 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 96.5 MB. Free memory is still 53.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:39:05,666 INFO L168 Benchmark]: CACSL2BoogieTranslator took 749.93 ms. Allocated memory is still 96.5 MB. Free memory was 69.9 MB in the beginning and 63.1 MB in the end (delta: 6.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:39:05,668 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.45 ms. Allocated memory is still 96.5 MB. Free memory was 62.9 MB in the beginning and 61.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:39:05,670 INFO L168 Benchmark]: Boogie Preprocessor took 29.41 ms. Allocated memory is still 96.5 MB. Free memory was 61.2 MB in the beginning and 60.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:39:05,676 INFO L168 Benchmark]: RCFGBuilder took 378.19 ms. Allocated memory was 96.5 MB in the beginning and 132.1 MB in the end (delta: 35.7 MB). Free memory was 60.0 MB in the beginning and 109.9 MB in the end (delta: -49.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:39:05,677 INFO L168 Benchmark]: BuchiAutomizer took 4511.59 ms. Allocated memory is still 132.1 MB. Free memory was 109.7 MB in the beginning and 51.7 MB in the end (delta: 58.0 MB). Peak memory consumption was 56.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:39:05,678 INFO L168 Benchmark]: Witness Printer took 5.28 ms. Allocated memory is still 132.1 MB. Free memory is still 51.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:39:05,687 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 96.5 MB. Free memory is still 53.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 749.93 ms. Allocated memory is still 96.5 MB. Free memory was 69.9 MB in the beginning and 63.1 MB in the end (delta: 6.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 76.45 ms. Allocated memory is still 96.5 MB. Free memory was 62.9 MB in the beginning and 61.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.41 ms. Allocated memory is still 96.5 MB. Free memory was 61.2 MB in the beginning and 60.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 378.19 ms. Allocated memory was 96.5 MB in the beginning and 132.1 MB in the end (delta: 35.7 MB). Free memory was 60.0 MB in the beginning and 109.9 MB in the end (delta: -49.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4511.59 ms. Allocated memory is still 132.1 MB. Free memory was 109.7 MB in the beginning and 51.7 MB in the end (delta: 58.0 MB). Peak memory consumption was 56.4 MB. Max. memory is 16.1 GB. * Witness Printer took 5.28 ms. Allocated memory is still 132.1 MB. Free memory is still 51.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (in_len)] + -1 * t and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.9s. 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: 8 SDtfs, 9 SDslu, 2 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: inital158 mio100 ax100 hnf100 lsp110 ukn114 mio100 lsp31 div136 bol100 ite100 ukn100 eq160 hnf72 smp85 dnf235 smp52 tf100 neg98 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 96ms VariablesStem: 6 VariablesLoop: 2 DisjunctsStem: 2 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 20 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...