./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_af081c4b-c322-4c3f-9305-b65b1b6fcc47/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_af081c4b-c322-4c3f-9305-b65b1b6fcc47/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_af081c4b-c322-4c3f-9305-b65b1b6fcc47/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_af081c4b-c322-4c3f-9305-b65b1b6fcc47/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_af081c4b-c322-4c3f-9305-b65b1b6fcc47/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_af081c4b-c322-4c3f-9305-b65b1b6fcc47/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 32bit --witnessprinter.graph.data.programhash a34bff9f8dcb1cc5ffc10550dff41d19a382faaa ............................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:11:05,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:11:05,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:11:05,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:11:05,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:11:05,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:11:05,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:11:05,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:11:05,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:11:05,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:11:05,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:11:05,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:11:05,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:11:05,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:11:05,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:11:05,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:11:05,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:11:05,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:11:05,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:11:05,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:11:05,848 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:11:05,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:11:05,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:11:05,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:11:05,862 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:11:05,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:11:05,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:11:05,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:11:05,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:11:05,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:11:05,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:11:05,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:11:05,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:11:05,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:11:05,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:11:05,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:11:05,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:11:05,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:11:05,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:11:05,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:11:05,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:11:05,887 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_af081c4b-c322-4c3f-9305-b65b1b6fcc47/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-28 03:11:05,945 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:11:05,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:11:05,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:11:05,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:11:05,950 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:11:05,950 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:11:05,951 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:11:05,951 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:11:05,951 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:11:05,951 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:11:05,953 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:11:05,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:11:05,954 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:11:05,954 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:11:05,954 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:11:05,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:11:05,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:11:05,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:11:05,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:11:05,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:11:05,956 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:11:05,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:11:05,957 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:11:05,957 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:11:05,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:11:05,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:11:05,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:11:05,958 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:11:05,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:11:05,961 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:11:05,961 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:11:05,962 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:11:05,963 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:11:05,963 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_af081c4b-c322-4c3f-9305-b65b1b6fcc47/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_af081c4b-c322-4c3f-9305-b65b1b6fcc47/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a34bff9f8dcb1cc5ffc10550dff41d19a382faaa [2020-11-28 03:11:06,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:11:06,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:11:06,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:11:06,392 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:11:06,393 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:11:06,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_af081c4b-c322-4c3f-9305-b65b1b6fcc47/bin/uautomizer/../../sv-benchmarks/c/loops/while_infinite_loop_1.c [2020-11-28 03:11:06,499 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_af081c4b-c322-4c3f-9305-b65b1b6fcc47/bin/uautomizer/data/4ae19b007/81e4efb3d2b54fb9985be6fc5495bfd5/FLAGf6fede273 [2020-11-28 03:11:07,038 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:11:07,039 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_af081c4b-c322-4c3f-9305-b65b1b6fcc47/sv-benchmarks/c/loops/while_infinite_loop_1.c [2020-11-28 03:11:07,051 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_af081c4b-c322-4c3f-9305-b65b1b6fcc47/bin/uautomizer/data/4ae19b007/81e4efb3d2b54fb9985be6fc5495bfd5/FLAGf6fede273 [2020-11-28 03:11:07,384 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_af081c4b-c322-4c3f-9305-b65b1b6fcc47/bin/uautomizer/data/4ae19b007/81e4efb3d2b54fb9985be6fc5495bfd5 [2020-11-28 03:11:07,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:11:07,389 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:11:07,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:11:07,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:11:07,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:11:07,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:07,401 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28b0b7f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07, skipping insertion in model container [2020-11-28 03:11:07,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:07,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:11:07,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:11:07,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:11:07,657 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:11:07,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:11:07,702 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:11:07,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07 WrapperNode [2020-11-28 03:11:07,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:11:07,710 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:11:07,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:11:07,711 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:11:07,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:07,731 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:07,758 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:11:07,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:11:07,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:11:07,759 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:11:07,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:07,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:07,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:07,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:07,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:07,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:07,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:07,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:11:07,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:11:07,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:11:07,789 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:11:07,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af081c4b-c322-4c3f-9305-b65b1b6fcc47/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 [2020-11-28 03:11:07,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:11:07,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:11:07,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:11:07,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:11:08,207 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:11:08,207 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-11-28 03:11:08,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:08 BoogieIcfgContainer [2020-11-28 03:11:08,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:11:08,211 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:11:08,211 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:11:08,216 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:11:08,217 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:11:08,217 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:11:07" (1/3) ... [2020-11-28 03:11:08,219 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f7037be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:11:08, skipping insertion in model container [2020-11-28 03:11:08,220 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:11:08,220 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (2/3) ... [2020-11-28 03:11:08,221 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f7037be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:11:08, skipping insertion in model container [2020-11-28 03:11:08,221 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:11:08,221 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:08" (3/3) ... [2020-11-28 03:11:08,223 INFO L373 chiAutomizerObserver]: Analyzing ICFG while_infinite_loop_1.c [2020-11-28 03:11:08,304 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:11:08,304 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:11:08,304 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:11:08,305 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:11:08,305 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:11:08,305 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:11:08,305 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:11:08,305 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:11:08,322 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-11-28 03:11:08,378 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 03:11:08,378 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:11:08,379 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:11:08,386 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 03:11:08,388 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:11:08,388 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:11:08,388 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-11-28 03:11:08,392 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 03:11:08,392 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:11:08,393 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:11:08,394 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 03:11:08,394 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:11:08,403 INFO L794 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 6#L-1true havoc main_#res;havoc main_~x~0;main_~x~0 := 0; 15#L6-2true [2020-11-28 03:11:08,403 INFO L796 eck$LassoCheckResult]: Loop: 15#L6-2true assume !false;__VERIFIER_assert_#in~cond := (if 0 == main_~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 3#L6true assume !(0 == __VERIFIER_assert_~cond); 15#L6-2true [2020-11-28 03:11:08,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:08,419 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-11-28 03:11:08,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:08,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877085947] [2020-11-28 03:11:08,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:08,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:08,537 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:08,562 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:08,583 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:11:08,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:08,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1322, now seen corresponding path program 1 times [2020-11-28 03:11:08,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:08,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297901922] [2020-11-28 03:11:08,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:08,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:08,604 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:08,623 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:08,626 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:11:08,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:08,629 INFO L82 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2020-11-28 03:11:08,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:08,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517967055] [2020-11-28 03:11:08,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:08,651 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:08,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:08,669 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:08,675 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:11:09,054 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2020-11-28 03:11:09,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:11:09 BoogieIcfgContainer [2020-11-28 03:11:09,178 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:11:09,179 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:11:09,179 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:11:09,179 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:11:09,180 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:08" (3/4) ... [2020-11-28 03:11:09,183 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-28 03:11:09,221 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_af081c4b-c322-4c3f-9305-b65b1b6fcc47/bin/uautomizer/witness.graphml [2020-11-28 03:11:09,221 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:11:09,224 INFO L168 Benchmark]: Toolchain (without parser) took 1833.49 ms. Allocated memory was 90.2 MB in the beginning and 113.2 MB in the end (delta: 23.1 MB). Free memory was 60.6 MB in the beginning and 90.0 MB in the end (delta: -29.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:11:09,225 INFO L168 Benchmark]: CDTParser took 1.10 ms. Allocated memory is still 90.2 MB. Free memory was 49.0 MB in the beginning and 49.0 MB in the end (delta: 63.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:11:09,227 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.21 ms. Allocated memory was 90.2 MB in the beginning and 113.2 MB in the end (delta: 23.1 MB). Free memory was 60.4 MB in the beginning and 91.7 MB in the end (delta: -31.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:09,228 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.62 ms. Allocated memory is still 113.2 MB. Free memory was 91.7 MB in the beginning and 90.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:11:09,229 INFO L168 Benchmark]: Boogie Preprocessor took 28.21 ms. Allocated memory is still 113.2 MB. Free memory was 90.4 MB in the beginning and 89.7 MB in the end (delta: 718.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:09,230 INFO L168 Benchmark]: RCFGBuilder took 421.75 ms. Allocated memory is still 113.2 MB. Free memory was 89.1 MB in the beginning and 78.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:09,231 INFO L168 Benchmark]: BuchiAutomizer took 966.83 ms. Allocated memory is still 113.2 MB. Free memory was 78.6 MB in the beginning and 92.0 MB in the end (delta: -13.5 MB). Peak memory consumption was 47.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:09,232 INFO L168 Benchmark]: Witness Printer took 43.09 ms. Allocated memory is still 113.2 MB. Free memory was 92.0 MB in the beginning and 90.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:11:09,237 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.10 ms. Allocated memory is still 90.2 MB. Free memory was 49.0 MB in the beginning and 49.0 MB in the end (delta: 63.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 313.21 ms. Allocated memory was 90.2 MB in the beginning and 113.2 MB in the end (delta: 23.1 MB). Free memory was 60.4 MB in the beginning and 91.7 MB in the end (delta: -31.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.62 ms. Allocated memory is still 113.2 MB. Free memory was 91.7 MB in the beginning and 90.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.21 ms. Allocated memory is still 113.2 MB. Free memory was 90.4 MB in the beginning and 89.7 MB in the end (delta: 718.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 421.75 ms. Allocated memory is still 113.2 MB. Free memory was 89.1 MB in the beginning and 78.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 966.83 ms. Allocated memory is still 113.2 MB. Free memory was 78.6 MB in the beginning and 92.0 MB in the end (delta: -13.5 MB). Peak memory consumption was 47.8 MB. Max. memory is 16.1 GB. * Witness Printer took 43.09 ms. Allocated memory is still 113.2 MB. Free memory was 92.0 MB in the beginning and 90.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 1]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {cond=1, NULL=0, NULL=0, NULL=0, NULL=2, NULL=0, \result=0, NULL=3, NULL=1, \old(cond)=1, NULL=0, x=0, NULL=4} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 5]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int x=0; Loop: [L15] COND TRUE 1 [L6] COND FALSE !(!(cond)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...