./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca_false-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca_false-termination.c.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 ccb5cb9edc315122662555ec62bb7adf5b85f05c ..................................................................................................................................................................................................................................................................... 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 0.1.24-2e94e6a [2019-01-01 21:42:48,875 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 21:42:48,877 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 21:42:48,890 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 21:42:48,891 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 21:42:48,892 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 21:42:48,894 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 21:42:48,896 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 21:42:48,898 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 21:42:48,899 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 21:42:48,900 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 21:42:48,900 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 21:42:48,902 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 21:42:48,903 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 21:42:48,904 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 21:42:48,905 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 21:42:48,907 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 21:42:48,908 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 21:42:48,911 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 21:42:48,912 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 21:42:48,914 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 21:42:48,915 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 21:42:48,918 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 21:42:48,918 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 21:42:48,918 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 21:42:48,919 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 21:42:48,920 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 21:42:48,921 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 21:42:48,922 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 21:42:48,923 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 21:42:48,924 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 21:42:48,925 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 21:42:48,925 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 21:42:48,925 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 21:42:48,926 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 21:42:48,927 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 21:42:48,928 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-01-01 21:42:48,945 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 21:42:48,945 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 21:42:48,947 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 21:42:48,947 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 21:42:48,947 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 21:42:48,947 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-01 21:42:48,947 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-01 21:42:48,948 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-01 21:42:48,948 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-01 21:42:48,948 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-01 21:42:48,949 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-01 21:42:48,949 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 21:42:48,949 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 21:42:48,950 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 21:42:48,950 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 21:42:48,950 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-01 21:42:48,950 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-01 21:42:48,950 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-01 21:42:48,950 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 21:42:48,951 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-01 21:42:48,952 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 21:42:48,952 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-01 21:42:48,952 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 21:42:48,952 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 21:42:48,952 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-01 21:42:48,953 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 21:42:48,953 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 21:42:48,954 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-01 21:42:48,955 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-01 21:42:48,955 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> ccb5cb9edc315122662555ec62bb7adf5b85f05c [2019-01-01 21:42:48,992 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 21:42:49,006 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 21:42:49,011 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 21:42:49,013 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 21:42:49,013 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 21:42:49,014 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca_false-termination.c.i [2019-01-01 21:42:49,078 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f7d9ebdb/005b56c03c3f46d1a376b4c17cccc588/FLAGe5fd34759 [2019-01-01 21:42:49,687 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 21:42:49,688 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca_false-termination.c.i [2019-01-01 21:42:49,703 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f7d9ebdb/005b56c03c3f46d1a376b4c17cccc588/FLAGe5fd34759 [2019-01-01 21:42:49,941 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f7d9ebdb/005b56c03c3f46d1a376b4c17cccc588 [2019-01-01 21:42:49,947 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 21:42:49,951 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 21:42:49,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 21:42:49,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 21:42:49,961 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 21:42:49,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 09:42:49" (1/1) ... [2019-01-01 21:42:49,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54e3e636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:42:49, skipping insertion in model container [2019-01-01 21:42:49,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 09:42:49" (1/1) ... [2019-01-01 21:42:49,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 21:42:50,044 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 21:42:50,374 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 21:42:50,392 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 21:42:50,536 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 21:42:50,600 INFO L195 MainTranslator]: Completed translation [2019-01-01 21:42:50,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:42:50 WrapperNode [2019-01-01 21:42:50,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 21:42:50,602 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 21:42:50,602 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 21:42:50,602 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 21:42:50,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:42:50" (1/1) ... [2019-01-01 21:42:50,630 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:42:50" (1/1) ... [2019-01-01 21:42:50,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 21:42:50,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 21:42:50,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 21:42:50,654 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 21:42:50,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:42:50" (1/1) ... [2019-01-01 21:42:50,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:42:50" (1/1) ... [2019-01-01 21:42:50,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:42:50" (1/1) ... [2019-01-01 21:42:50,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:42:50" (1/1) ... [2019-01-01 21:42:50,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:42:50" (1/1) ... [2019-01-01 21:42:50,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:42:50" (1/1) ... [2019-01-01 21:42:50,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:42:50" (1/1) ... [2019-01-01 21:42:50,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 21:42:50,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 21:42:50,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 21:42:50,697 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 21:42:50,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:42:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-01 21:42:50,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-01 21:42:50,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-01 21:42:50,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 21:42:50,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 21:42:50,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 21:42:50,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 21:42:51,089 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 21:42:51,089 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-01 21:42:51,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:42:51 BoogieIcfgContainer [2019-01-01 21:42:51,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 21:42:51,091 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-01 21:42:51,091 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-01 21:42:51,095 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-01 21:42:51,095 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:42:51,096 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.01 09:42:49" (1/3) ... [2019-01-01 21:42:51,097 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@18417348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 09:42:51, skipping insertion in model container [2019-01-01 21:42:51,097 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:42:51,097 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:42:50" (2/3) ... [2019-01-01 21:42:51,098 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@18417348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 09:42:51, skipping insertion in model container [2019-01-01 21:42:51,098 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:42:51,098 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:42:51" (3/3) ... [2019-01-01 21:42:51,102 INFO L375 chiAutomizerObserver]: Analyzing ICFG Urban-2013WST-Fig1-alloca_false-termination.c.i [2019-01-01 21:42:51,169 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 21:42:51,170 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-01 21:42:51,170 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-01 21:42:51,170 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-01 21:42:51,171 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 21:42:51,171 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 21:42:51,171 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-01 21:42:51,171 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 21:42:51,171 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-01 21:42:51,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2019-01-01 21:42:51,219 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-01 21:42:51,219 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:42:51,220 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:42:51,226 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-01 21:42:51,227 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-01 21:42:51,227 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-01 21:42:51,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2019-01-01 21:42:51,228 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-01 21:42:51,228 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:42:51,228 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:42:51,229 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-01 21:42:51,229 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-01 21:42:51,237 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~mem4, main_#t~mem5, main_#t~mem3, main_~x~0.base, main_~x~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset; 5#L549-2true [2019-01-01 21:42:51,238 INFO L796 eck$LassoCheckResult]: Loop: 5#L549-2true call main_#t~mem3 := read~int(main_~x~0.base, main_~x~0.offset, 4); 6#L548-1true assume !!(main_#t~mem3 <= 10);havoc main_#t~mem3;call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); 11#L549true assume !(main_#t~mem4 > 6);havoc main_#t~mem4; 5#L549-2true [2019-01-01 21:42:51,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:42:51,245 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-01-01 21:42:51,247 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:42:51,248 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:42:51,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:42:51,305 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:42:51,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:42:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:42:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:42:51,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:42:51,373 INFO L82 PathProgramCache]: Analyzing trace with hash 36907, now seen corresponding path program 1 times [2019-01-01 21:42:51,373 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:42:51,373 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:42:51,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:42:51,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:42:51,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:42:51,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:42:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:42:51,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:42:51,400 INFO L82 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2019-01-01 21:42:51,400 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:42:51,400 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:42:51,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:42:51,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:42:51,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:42:51,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:42:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:42:51,553 WARN L181 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2019-01-01 21:42:51,742 WARN L181 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2019-01-01 21:42:51,949 WARN L181 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2019-01-01 21:42:52,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.01 09:42:52 BoogieIcfgContainer [2019-01-01 21:42:52,008 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-01 21:42:52,009 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 21:42:52,009 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 21:42:52,009 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 21:42:52,010 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:42:51" (3/4) ... [2019-01-01 21:42:52,013 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2019-01-01 21:42:52,053 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 21:42:52,054 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 21:42:52,055 INFO L168 Benchmark]: Toolchain (without parser) took 2105.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 947.3 MB in the beginning and 1.0 GB in the end (delta: -101.8 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. [2019-01-01 21:42:52,056 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:42:52,057 INFO L168 Benchmark]: CACSL2BoogieTranslator took 648.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -147.5 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. [2019-01-01 21:42:52,058 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:42:52,058 INFO L168 Benchmark]: Boogie Preprocessor took 42.53 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:42:52,059 INFO L168 Benchmark]: RCFGBuilder took 393.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-01-01 21:42:52,060 INFO L168 Benchmark]: BuchiAutomizer took 917.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2019-01-01 21:42:52,061 INFO L168 Benchmark]: Witness Printer took 44.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:42:52,065 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 648.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -147.5 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.53 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 393.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 917.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * Witness Printer took 44.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 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: 548]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2114} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@2ab6c61d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ec60901=2113, NULL=0, NULL=0, x=2113, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ec60901=0, x=0, NULL=2114, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@4149f8b2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@7f0a7d1b=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 548]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L547] int* x = __builtin_alloca (sizeof(int)); Loop: [L548] EXPR \read(*x) [L548] COND TRUE *x <= 10 [L549] EXPR \read(*x) [L549] COND FALSE !(*x > 6) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...