./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-dietlibc/strchr-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-dietlibc/strchr-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/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 eae91250bd54f01dff46ae6aab61c3076a74de3d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:16:25,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:16:25,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:16:25,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:16:25,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:16:25,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:16:25,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:16:25,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:16:25,312 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:16:25,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:16:25,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:16:25,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:16:25,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:16:25,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:16:25,332 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:16:25,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:16:25,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:16:25,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:16:25,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:16:25,353 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:16:25,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:16:25,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:16:25,360 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:16:25,361 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:16:25,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:16:25,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:16:25,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:16:25,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:16:25,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:16:25,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:16:25,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:16:25,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:16:25,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:16:25,379 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:16:25,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:16:25,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:16:25,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:16:25,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:16:25,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:16:25,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:16:25,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:16:25,389 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-30 01:16:25,416 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:16:25,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:16:25,418 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:16:25,419 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:16:25,419 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:16:25,419 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:16:25,420 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:16:25,420 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:16:25,420 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:16:25,421 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:16:25,421 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:16:25,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:16:25,422 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:16:25,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:16:25,423 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:16:25,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:16:25,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:16:25,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:16:25,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:16:25,424 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:16:25,424 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:16:25,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:16:25,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:16:25,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:16:25,425 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:16:25,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:16:25,426 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:16:25,426 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:16:25,427 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:16:25,428 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:16:25,428 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_1137b9ba-5f8d-46d7-ab13-6f9488850a54/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eae91250bd54f01dff46ae6aab61c3076a74de3d [2020-11-30 01:16:25,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:16:25,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:16:25,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:16:25,811 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:16:25,812 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:16:25,813 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/bin/uautomizer/../../sv-benchmarks/c/termination-dietlibc/strchr-1.i [2020-11-30 01:16:25,924 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/bin/uautomizer/data/a59e8c57a/822eacd02a4d44fda7e2f1a9a0abcd35/FLAG3c354077e [2020-11-30 01:16:26,607 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:16:26,608 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/sv-benchmarks/c/termination-dietlibc/strchr-1.i [2020-11-30 01:16:26,632 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/bin/uautomizer/data/a59e8c57a/822eacd02a4d44fda7e2f1a9a0abcd35/FLAG3c354077e [2020-11-30 01:16:26,905 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/bin/uautomizer/data/a59e8c57a/822eacd02a4d44fda7e2f1a9a0abcd35 [2020-11-30 01:16:26,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:16:26,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:16:26,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:16:26,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:16:26,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:16:26,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:16:26" (1/1) ... [2020-11-30 01:16:26,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54b3c509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:26, skipping insertion in model container [2020-11-30 01:16:26,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:16:26" (1/1) ... [2020-11-30 01:16:26,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:16:27,014 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:16:27,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:16:27,496 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:16:27,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:16:27,643 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:16:27,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:27 WrapperNode [2020-11-30 01:16:27,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:16:27,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:16:27,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:16:27,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:16:27,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:27" (1/1) ... [2020-11-30 01:16:27,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:27" (1/1) ... [2020-11-30 01:16:27,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:16:27,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:16:27,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:16:27,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:16:27,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:27" (1/1) ... [2020-11-30 01:16:27,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:27" (1/1) ... [2020-11-30 01:16:27,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:27" (1/1) ... [2020-11-30 01:16:27,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:27" (1/1) ... [2020-11-30 01:16:27,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:27" (1/1) ... [2020-11-30 01:16:27,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:27" (1/1) ... [2020-11-30 01:16:27,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:27" (1/1) ... [2020-11-30 01:16:27,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:16:27,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:16:27,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:16:27,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:16:27,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:16:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 01:16:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 01:16:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:16:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:16:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:16:27,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:16:28,462 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:16:28,463 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-30 01:16:28,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:16:28 BoogieIcfgContainer [2020-11-30 01:16:28,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:16:28,468 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:16:28,468 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:16:28,472 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:16:28,473 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:16:28,473 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:16:26" (1/3) ... [2020-11-30 01:16:28,475 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d7c8ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:16:28, skipping insertion in model container [2020-11-30 01:16:28,475 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:16:28,475 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:27" (2/3) ... [2020-11-30 01:16:28,476 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d7c8ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:16:28, skipping insertion in model container [2020-11-30 01:16:28,476 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:16:28,476 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:16:28" (3/3) ... [2020-11-30 01:16:28,479 INFO L373 chiAutomizerObserver]: Analyzing ICFG strchr-1.i [2020-11-30 01:16:28,565 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:16:28,565 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:16:28,566 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:16:28,566 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:16:28,566 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:16:28,566 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:16:28,567 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:16:28,567 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:16:28,586 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-11-30 01:16:28,612 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-11-30 01:16:28,613 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:16:28,613 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:16:28,621 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-30 01:16:28,621 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:28,621 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:16:28,622 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-11-30 01:16:28,625 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-11-30 01:16:28,625 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:16:28,625 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:16:28,626 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-30 01:16:28,626 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:28,635 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet14, main_#t~malloc15.base, main_#t~malloc15.offset, main_#t~nondet16, main_#t~ret17.base, main_#t~ret17.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~the_int~0;main_~in_len~0 := main_#t~nondet14;havoc main_#t~nondet14; 14#L519true assume !(main_~in_len~0 < 1);call main_#t~malloc15.base, main_#t~malloc15.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc15.base, main_#t~malloc15.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~the_int~0 := main_#t~nondet16;havoc main_#t~nondet16;strchr_#in~t.base, strchr_#in~t.offset, strchr_#in~c := main_~in~0.base, main_~in~0.offset, main_~the_int~0;havoc strchr_#res.base, strchr_#res.offset;havoc strchr_#t~mem2, strchr_#t~mem3, strchr_#t~pre4.base, strchr_#t~pre4.offset, strchr_#t~mem5, strchr_#t~mem6, strchr_#t~pre7.base, strchr_#t~pre7.offset, strchr_#t~mem8, strchr_#t~mem9, strchr_#t~pre10.base, strchr_#t~pre10.offset, strchr_#t~mem11, strchr_#t~mem12, strchr_#t~pre13.base, strchr_#t~pre13.offset, strchr_~t.base, strchr_~t.offset, strchr_~c, strchr_~ch~0;strchr_~t.base, strchr_~t.offset := strchr_#in~t.base, strchr_#in~t.offset;strchr_~c := strchr_#in~c;havoc strchr_~ch~0;strchr_~ch~0 := (if strchr_~c % 256 <= 127 then strchr_~c % 256 else strchr_~c % 256 - 256); 17#L509-2true [2020-11-30 01:16:28,636 INFO L796 eck$LassoCheckResult]: Loop: 17#L509-2true assume !false;call strchr_#t~mem2 := read~int(strchr_~t.base, strchr_~t.offset, 1); 10#L510true assume !(strchr_#t~mem2 == strchr_~ch~0);havoc strchr_#t~mem2;call strchr_#t~mem3 := read~int(strchr_~t.base, strchr_~t.offset, 1); 16#L510-2true assume !(0 == strchr_#t~mem3);havoc strchr_#t~mem3;strchr_#t~pre4.base, strchr_#t~pre4.offset := strchr_~t.base, 1 + strchr_~t.offset;strchr_~t.base, strchr_~t.offset := strchr_~t.base, 1 + strchr_~t.offset;havoc strchr_#t~pre4.base, strchr_#t~pre4.offset;call strchr_#t~mem5 := read~int(strchr_~t.base, strchr_~t.offset, 1); 7#L511true assume !(strchr_#t~mem5 == strchr_~ch~0);havoc strchr_#t~mem5;call strchr_#t~mem6 := read~int(strchr_~t.base, strchr_~t.offset, 1); 13#L511-2true assume !(0 == strchr_#t~mem6);havoc strchr_#t~mem6;strchr_#t~pre7.base, strchr_#t~pre7.offset := strchr_~t.base, 1 + strchr_~t.offset;strchr_~t.base, strchr_~t.offset := strchr_~t.base, 1 + strchr_~t.offset;havoc strchr_#t~pre7.base, strchr_#t~pre7.offset;call strchr_#t~mem8 := read~int(strchr_~t.base, strchr_~t.offset, 1); 6#L512true assume !(strchr_#t~mem8 == strchr_~ch~0);havoc strchr_#t~mem8;call strchr_#t~mem9 := read~int(strchr_~t.base, strchr_~t.offset, 1); 11#L512-2true assume !(0 == strchr_#t~mem9);havoc strchr_#t~mem9;strchr_#t~pre10.base, strchr_#t~pre10.offset := strchr_~t.base, 1 + strchr_~t.offset;strchr_~t.base, strchr_~t.offset := strchr_~t.base, 1 + strchr_~t.offset;havoc strchr_#t~pre10.base, strchr_#t~pre10.offset;call strchr_#t~mem11 := read~int(strchr_~t.base, strchr_~t.offset, 1); 4#L513true assume !(strchr_#t~mem11 == strchr_~ch~0);havoc strchr_#t~mem11;call strchr_#t~mem12 := read~int(strchr_~t.base, strchr_~t.offset, 1); 8#L513-2true assume !(0 == strchr_#t~mem12);havoc strchr_#t~mem12;strchr_#t~pre13.base, strchr_#t~pre13.offset := strchr_~t.base, 1 + strchr_~t.offset;strchr_~t.base, strchr_~t.offset := strchr_~t.base, 1 + strchr_~t.offset;havoc strchr_#t~pre13.base, strchr_#t~pre13.offset; 17#L509-2true [2020-11-30 01:16:28,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:28,644 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2020-11-30 01:16:28,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:28,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489716179] [2020-11-30 01:16:28,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:28,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:28,818 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:28,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:28,874 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:28,907 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:16:28,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:28,912 INFO L82 PathProgramCache]: Analyzing trace with hash 563131458, now seen corresponding path program 1 times [2020-11-30 01:16:28,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:28,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427472087] [2020-11-30 01:16:28,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:28,970 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:28,991 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:28,997 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:16:28,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:29,000 INFO L82 PathProgramCache]: Analyzing trace with hash -208288001, now seen corresponding path program 1 times [2020-11-30 01:16:29,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:16:29,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824162758] [2020-11-30 01:16:29,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:16:29,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:29,040 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:29,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:29,105 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:29,118 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:16:29,490 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2020-11-30 01:16:29,802 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2020-11-30 01:16:29,956 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-11-30 01:16:29,975 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 01:16:29,976 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 01:16:29,976 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 01:16:29,976 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 01:16:29,977 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 01:16:29,977 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:16:29,977 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 01:16:29,977 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 01:16:29,977 INFO L133 ssoRankerPreferences]: Filename of dumped script: strchr-1.i_Iteration1_Lasso [2020-11-30 01:16:29,978 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 01:16:29,978 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 01:16:30,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:16:30,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:16:30,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:16:30,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:16:30,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:16:30,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:16:30,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:16:30,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:16:30,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:16:30,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:16:30,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:16:30,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:16:30,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:16:30,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:16:30,769 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-11-30 01:16:30,967 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-11-30 01:16:30,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:16:30,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:16:30,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:16:30,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:16:30,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:16:31,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:16:31,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:16:31,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:16:31,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:16:31,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:16:31,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:16:31,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:16:31,355 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-30 01:16:31,514 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2020-11-30 01:16:31,948 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2020-11-30 01:16:43,885 WARN L193 SmtUtils]: Spent 11.93 s on a formula simplification. DAG size of input: 295 DAG size of output: 185 [2020-11-30 01:16:44,064 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 01:16:44,070 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:16:44,076 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:16:44,078 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:16:44,078 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:16:44,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:16:44,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:16:44,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:16:44,083 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:16:44,083 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:16:44,087 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:16:44,123 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:16:44,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:16:44,129 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:16:44,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:16:44,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:16:44,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:16:44,130 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:16:44,130 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:16:44,134 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/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 [2020-11-30 01:16:44,160 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:16:44,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:16:44,162 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:16:44,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:16:44,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:16:44,163 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:16:44,164 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:16:44,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:16:44,195 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:16:44,245 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:16:44,247 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:16:44,247 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:16:44,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:16:44,248 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:16:44,248 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:16:44,250 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:16:44,250 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:16:44,253 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/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 [2020-11-30 01:16:44,283 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 [2020-11-30 01:16:44,284 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:16:44,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:16:44,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:16:44,285 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:16:44,288 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:16:44,289 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:16:44,292 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:16:44,319 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:16:44,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:16:44,321 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:16:44,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:16:44,321 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:16:44,321 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:16:44,322 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:16:44,322 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:16:44,325 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:16:44,353 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:16:44,354 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:16:44,354 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:16:44,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:16:44,355 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:16:44,355 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:16:44,356 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:16:44,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:16:44,358 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:16:44,389 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:16:44,390 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:16:44,390 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:16:44,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:16:44,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:16:44,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:16:44,391 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:16:44,392 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:16:44,393 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/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 [2020-11-30 01:16:44,420 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:16:44,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:16:44,422 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:16:44,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:16:44,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:16:44,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:16:44,423 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:16:44,423 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:16:44,425 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/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 [2020-11-30 01:16:44,455 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:16:44,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:16:44,457 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:16:44,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:16:44,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:16:44,457 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:16:44,458 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:16:44,458 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:16:44,460 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/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) [2020-11-30 01:16:44,487 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:16:44,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:16:44,489 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:16:44,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:16:44,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:16:44,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:16:44,490 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:16:44,490 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:16:44,492 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/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 [2020-11-30 01:16:44,529 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:16:44,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:16:44,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:16:44,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:16:44,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:16:44,537 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:16:44,537 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:16:44,542 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/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 [2020-11-30 01:16:44,571 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:16:44,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:16:44,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:16:44,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:16:44,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:16:44,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:16:44,574 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:16:44,574 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:16:44,575 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/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 [2020-11-30 01:16:44,603 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:16:44,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:16:44,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:16:44,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:16:44,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:16:44,612 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:16:44,613 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:16:44,619 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/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 [2020-11-30 01:16:44,646 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 [2020-11-30 01:16:44,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:16:44,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:16:44,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:16:44,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:16:44,665 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:16:44,665 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:16:44,689 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 01:16:44,935 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2020-11-30 01:16:44,935 INFO L444 ModelExtractionUtils]: 6 out of 25 variables were initially zero. Simplification set additionally 16 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1137b9ba-5f8d-46d7-ab13-6f9488850a54/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) [2020-11-30 01:16:44,945 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 [2020-11-30 01:16:44,949 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-30 01:16:44,950 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 01:16:44,951 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc15.base)_1, ULTIMATE.start_strchr_~t.offset) = 2*v_rep(select #length ULTIMATE.start_main_#t~malloc15.base)_1 - 1*ULTIMATE.start_strchr_~t.offset Supporting invariants [] [2020-11-30 01:16:45,035 INFO L297 tatePredicateManager]: 9 out of 10 supporting invariants were superfluous and have been removed [2020-11-30 01:16:45,045 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 01:16:45,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:45,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 01:16:45,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:16:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:45,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-30 01:16:45,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:16:45,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:16:45,372 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2020-11-30 01:16:45,373 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states. Second operand 6 states. [2020-11-30 01:16:45,564 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states.. Second operand 6 states. Result 40 states and 59 transitions. Complement of second has 10 states. [2020-11-30 01:16:45,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-11-30 01:16:45,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-30 01:16:45,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 36 transitions. [2020-11-30 01:16:45,569 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 3 letters. Loop has 9 letters. [2020-11-30 01:16:45,571 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:16:45,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 12 letters. Loop has 9 letters. [2020-11-30 01:16:45,572 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:16:45,572 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 3 letters. Loop has 18 letters. [2020-11-30 01:16:45,574 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:16:45,575 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 59 transitions. [2020-11-30 01:16:45,585 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 01:16:45,588 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 0 states and 0 transitions. [2020-11-30 01:16:45,589 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 01:16:45,589 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 01:16:45,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 01:16:45,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:16:45,590 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:16:45,590 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:16:45,590 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:16:45,590 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:16:45,591 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:16:45,591 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 01:16:45,591 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-30 01:16:45,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:16:45 BoogieIcfgContainer [2020-11-30 01:16:45,599 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:16:45,610 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:16:45,610 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:16:45,611 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:16:45,611 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:16:28" (3/4) ... [2020-11-30 01:16:45,614 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 01:16:45,615 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:16:45,616 INFO L168 Benchmark]: Toolchain (without parser) took 18705.20 ms. Allocated memory was 88.1 MB in the beginning and 249.6 MB in the end (delta: 161.5 MB). Free memory was 57.0 MB in the beginning and 160.9 MB in the end (delta: -103.9 MB). Peak memory consumption was 57.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:45,617 INFO L168 Benchmark]: CDTParser took 5.32 ms. Allocated memory is still 88.1 MB. Free memory is still 45.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:16:45,618 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.16 ms. Allocated memory is still 88.1 MB. Free memory was 56.8 MB in the beginning and 55.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:45,619 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.49 ms. Allocated memory is still 88.1 MB. Free memory was 55.2 MB in the beginning and 53.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:45,626 INFO L168 Benchmark]: Boogie Preprocessor took 29.38 ms. Allocated memory is still 88.1 MB. Free memory was 53.2 MB in the beginning and 52.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:16:45,627 INFO L168 Benchmark]: RCFGBuilder took 715.75 ms. Allocated memory is still 88.1 MB. Free memory was 52.0 MB in the beginning and 35.2 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:45,628 INFO L168 Benchmark]: BuchiAutomizer took 17131.67 ms. Allocated memory was 88.1 MB in the beginning and 249.6 MB in the end (delta: 161.5 MB). Free memory was 35.2 MB in the beginning and 160.9 MB in the end (delta: -125.7 MB). Peak memory consumption was 38.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:45,628 INFO L168 Benchmark]: Witness Printer took 4.64 ms. Allocated memory is still 249.6 MB. Free memory is still 160.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:16:45,638 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 5.32 ms. Allocated memory is still 88.1 MB. Free memory is still 45.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 723.16 ms. Allocated memory is still 88.1 MB. Free memory was 56.8 MB in the beginning and 55.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.49 ms. Allocated memory is still 88.1 MB. Free memory was 55.2 MB in the beginning and 53.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.38 ms. Allocated memory is still 88.1 MB. Free memory was 53.2 MB in the beginning and 52.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 715.75 ms. Allocated memory is still 88.1 MB. Free memory was 52.0 MB in the beginning and 35.2 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 17131.67 ms. Allocated memory was 88.1 MB in the beginning and 249.6 MB in the end (delta: 161.5 MB). Free memory was 35.2 MB in the beginning and 160.9 MB in the end (delta: -125.7 MB). Peak memory consumption was 38.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.64 ms. Allocated memory is still 249.6 MB. Free memory is still 160.9 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 2 * unknown-#length-unknown[__builtin_alloca (in_len)] + -1 * t and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 17.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 16.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 14 SDtfs, 17 SDslu, 20 SDs, 0 SdLazy, 31 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital208 mio100 ax100 hnf98 lsp108 ukn92 mio100 lsp42 div126 bol100 ite100 ukn100 eq168 hnf80 smp82 dnf6956 smp42 tf100 neg76 sie161 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...