./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_2.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_752c1c36-df7f-4d4d-863c-e349a5f9f95a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_752c1c36-df7f-4d4d-863c-e349a5f9f95a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_752c1c36-df7f-4d4d-863c-e349a5f9f95a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_752c1c36-df7f-4d4d-863c-e349a5f9f95a/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_752c1c36-df7f-4d4d-863c-e349a5f9f95a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_752c1c36-df7f-4d4d-863c-e349a5f9f95a/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 673762d41977d1832da2fc16ea042415bb97af40 ................................................................................................................................................................................................................................................................................ 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 03:08:54,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:08:54,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:08:55,049 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:08:55,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:08:55,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:08:55,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:08:55,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:08:55,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:08:55,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:08:55,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:08:55,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:08:55,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:08:55,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:08:55,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:08:55,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:08:55,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:08:55,090 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:08:55,094 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:08:55,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:08:55,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:08:55,106 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:08:55,108 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:08:55,109 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:08:55,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:08:55,120 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:08:55,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:08:55,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:08:55,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:08:55,125 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:08:55,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:08:55,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:08:55,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:08:55,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:08:55,132 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:08:55,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:08:55,133 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:08:55,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:08:55,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:08:55,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:08:55,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:08:55,140 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_752c1c36-df7f-4d4d-863c-e349a5f9f95a/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-28 03:08:55,188 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:08:55,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:08:55,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:08:55,191 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:08:55,191 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:08:55,191 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:08:55,192 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:08:55,192 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:08:55,192 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:08:55,193 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:08:55,194 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:08:55,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:08:55,195 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:08:55,195 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:08:55,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:08:55,195 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:08:55,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:08:55,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:08:55,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:08:55,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:08:55,197 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:08:55,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:08:55,198 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:08:55,198 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:08:55,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:08:55,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:08:55,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:08:55,199 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:08:55,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:08:55,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:08:55,200 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:08:55,201 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:08:55,202 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:08:55,202 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_752c1c36-df7f-4d4d-863c-e349a5f9f95a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_752c1c36-df7f-4d4d-863c-e349a5f9f95a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 673762d41977d1832da2fc16ea042415bb97af40 [2020-11-28 03:08:55,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:08:55,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:08:55,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:08:55,574 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:08:55,575 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:08:55,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_752c1c36-df7f-4d4d-863c-e349a5f9f95a/bin/uautomizer/../../sv-benchmarks/c/loops/while_infinite_loop_2.c [2020-11-28 03:08:55,661 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_752c1c36-df7f-4d4d-863c-e349a5f9f95a/bin/uautomizer/data/3fc8fbb3c/99035b10dd9446fe86c00cad8f3c98f3/FLAG61c57a4e1 [2020-11-28 03:08:56,236 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:08:56,237 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_752c1c36-df7f-4d4d-863c-e349a5f9f95a/sv-benchmarks/c/loops/while_infinite_loop_2.c [2020-11-28 03:08:56,249 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_752c1c36-df7f-4d4d-863c-e349a5f9f95a/bin/uautomizer/data/3fc8fbb3c/99035b10dd9446fe86c00cad8f3c98f3/FLAG61c57a4e1 [2020-11-28 03:08:56,577 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_752c1c36-df7f-4d4d-863c-e349a5f9f95a/bin/uautomizer/data/3fc8fbb3c/99035b10dd9446fe86c00cad8f3c98f3 [2020-11-28 03:08:56,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:08:56,585 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:08:56,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:56,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:08:56,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:08:56,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:56" (1/1) ... [2020-11-28 03:08:56,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@730cdff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:56, skipping insertion in model container [2020-11-28 03:08:56,599 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:56" (1/1) ... [2020-11-28 03:08:56,608 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:08:56,625 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:08:56,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:56,852 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:08:56,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:56,905 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:08:56,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:56 WrapperNode [2020-11-28 03:08:56,906 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:56,907 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:08:56,908 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:08:56,908 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:08:56,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:56" (1/1) ... [2020-11-28 03:08:56,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:56" (1/1) ... [2020-11-28 03:08:56,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:08:56,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:08:56,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:08:56,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:08:56,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:56" (1/1) ... [2020-11-28 03:08:56,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:56" (1/1) ... [2020-11-28 03:08:56,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:56" (1/1) ... [2020-11-28 03:08:56,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:56" (1/1) ... [2020-11-28 03:08:56,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:56" (1/1) ... [2020-11-28 03:08:56,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:56" (1/1) ... [2020-11-28 03:08:56,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:56" (1/1) ... [2020-11-28 03:08:56,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:08:56,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:08:56,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:08:56,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:08:56,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_752c1c36-df7f-4d4d-863c-e349a5f9f95a/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 03:08:57,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:08:57,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:08:57,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:08:57,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:08:57,542 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:08:57,546 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-11-28 03:08:57,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:57 BoogieIcfgContainer [2020-11-28 03:08:57,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:08:57,550 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:08:57,550 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:08:57,554 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:08:57,555 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:08:57,555 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:08:56" (1/3) ... [2020-11-28 03:08:57,556 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@311f9675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:08:57, skipping insertion in model container [2020-11-28 03:08:57,557 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:08:57,557 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:56" (2/3) ... [2020-11-28 03:08:57,557 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@311f9675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:08:57, skipping insertion in model container [2020-11-28 03:08:57,558 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:08:57,558 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:57" (3/3) ... [2020-11-28 03:08:57,560 INFO L373 chiAutomizerObserver]: Analyzing ICFG while_infinite_loop_2.c [2020-11-28 03:08:57,657 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:08:57,658 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:08:57,658 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:08:57,658 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:08:57,658 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:08:57,658 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:08:57,658 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:08:57,659 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:08:57,674 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-11-28 03:08:57,695 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 03:08:57,695 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:08:57,696 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:08:57,702 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 03:08:57,703 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:08:57,703 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:08:57,703 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-11-28 03:08:57,705 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 03:08:57,705 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:08:57,705 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:08:57,705 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 03:08:57,706 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:08:57,714 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 03:08:57,714 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 03:08:57,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:57,722 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-11-28 03:08:57,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:57,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813761158] [2020-11-28 03:08:57,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:08:57,851 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:08:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:08:57,870 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:08:57,894 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:08:57,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:57,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1322, now seen corresponding path program 1 times [2020-11-28 03:08:57,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:57,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666899963] [2020-11-28 03:08:57,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:08:57,912 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:08:57,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:08:57,918 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:08:57,921 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:08:57,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:57,923 INFO L82 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2020-11-28 03:08:57,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:57,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351010504] [2020-11-28 03:08:57,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:08:57,942 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:08:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:08:57,960 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:08:57,966 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:08:58,389 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2020-11-28 03:08:58,514 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-11-28 03:08:58,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:08:58 BoogieIcfgContainer [2020-11-28 03:08:58,550 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:08:58,551 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:08:58,551 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:08:58,551 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:08:58,552 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:57" (3/4) ... [2020-11-28 03:08:58,556 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-28 03:08:58,617 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_752c1c36-df7f-4d4d-863c-e349a5f9f95a/bin/uautomizer/witness.graphml [2020-11-28 03:08:58,621 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:08:58,627 INFO L168 Benchmark]: Toolchain (without parser) took 2037.28 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 66.6 MB in the beginning and 86.0 MB in the end (delta: -19.4 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:58,630 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 96.5 MB. Free memory was 55.6 MB in the beginning and 55.5 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:58,632 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.98 ms. Allocated memory is still 96.5 MB. Free memory was 66.3 MB in the beginning and 74.7 MB in the end (delta: -8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:58,637 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.26 ms. Allocated memory is still 96.5 MB. Free memory was 74.7 MB in the beginning and 73.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:58,639 INFO L168 Benchmark]: Boogie Preprocessor took 21.88 ms. Allocated memory is still 96.5 MB. Free memory was 73.5 MB in the beginning and 72.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:58,640 INFO L168 Benchmark]: RCFGBuilder took 580.37 ms. Allocated memory is still 96.5 MB. Free memory was 72.4 MB in the beginning and 61.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:58,641 INFO L168 Benchmark]: BuchiAutomizer took 999.95 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 61.9 MB in the beginning and 87.4 MB in the end (delta: -25.6 MB). Peak memory consumption was 33.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:58,642 INFO L168 Benchmark]: Witness Printer took 70.46 ms. Allocated memory is still 123.7 MB. Free memory was 87.4 MB in the beginning and 86.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:58,646 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 96.5 MB. Free memory was 55.6 MB in the beginning and 55.5 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 315.98 ms. Allocated memory is still 96.5 MB. Free memory was 66.3 MB in the beginning and 74.7 MB in the end (delta: -8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.26 ms. Allocated memory is still 96.5 MB. Free memory was 74.7 MB in the beginning and 73.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.88 ms. Allocated memory is still 96.5 MB. Free memory was 73.5 MB in the beginning and 72.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 580.37 ms. Allocated memory is still 96.5 MB. Free memory was 72.4 MB in the beginning and 61.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 999.95 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 61.9 MB in the beginning and 87.4 MB in the end (delta: -25.6 MB). Peak memory consumption was 33.2 MB. Max. memory is 16.1 GB. * Witness Printer took 70.46 ms. Allocated memory is still 123.7 MB. Free memory was 87.4 MB in the beginning and 86.0 MB in the end (delta: 1.4 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 0.8s. 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=4, NULL=1, \old(cond)=1, NULL=0, x=0, NULL=3} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 5]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int x=0; Loop: [L14] COND TRUE 1 [L6] COND FALSE !(!(cond)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...