./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/memsafety/test-0214.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/memsafety/test-0214.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash bbad5595d4a380534920239c65f21022d7390d8a .............................................................................................................................................................................................................................................................................................................................. 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 0.1.24-30f4e4a [2019-11-28 03:53:54,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:53:54,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:53:54,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:53:54,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:53:54,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:53:54,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:53:54,865 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:53:54,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:53:54,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:53:54,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:53:54,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:53:54,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:53:54,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:53:54,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:53:54,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:53:54,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:53:54,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:53:54,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:53:54,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:53:54,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:53:54,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:53:54,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:53:54,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:53:54,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:53:54,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:53:54,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:53:54,891 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:53:54,891 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:53:54,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:53:54,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:53:54,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:53:54,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:53:54,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:53:54,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:53:54,897 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:53:54,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:53:54,898 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:53:54,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:53:54,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:53:54,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:53:54,901 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:53:54,918 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:53:54,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:53:54,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:53:54,922 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:53:54,922 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:53:54,922 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:53:54,922 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:53:54,922 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:53:54,923 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:53:54,923 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:53:54,923 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:53:54,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:53:54,924 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:53:54,925 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:53:54,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:53:54,926 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:53:54,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:53:54,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:53:54,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:53:54,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:53:54,927 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:53:54,928 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:53:54,928 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:53:54,928 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:53:54,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:53:54,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:53:54,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:53:54,929 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:53:54,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:53:54,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:53:54,930 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:53:54,932 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:53:54,933 INFO L138 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bbad5595d4a380534920239c65f21022d7390d8a [2019-11-28 03:53:55,287 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:53:55,301 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:53:55,304 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:53:55,306 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:53:55,306 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:53:55,307 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/test-0214.i [2019-11-28 03:53:55,377 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dde4b1ada/e9855358b7db46af9b24d24b49e42c62/FLAGdcc2d8e41 [2019-11-28 03:53:55,991 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:53:55,992 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/test-0214.i [2019-11-28 03:53:56,020 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dde4b1ada/e9855358b7db46af9b24d24b49e42c62/FLAGdcc2d8e41 [2019-11-28 03:53:56,301 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dde4b1ada/e9855358b7db46af9b24d24b49e42c62 [2019-11-28 03:53:56,305 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:53:56,307 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:53:56,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:53:56,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:53:56,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:53:56,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:53:56" (1/1) ... [2019-11-28 03:53:56,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47a34ab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:56, skipping insertion in model container [2019-11-28 03:53:56,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:53:56" (1/1) ... [2019-11-28 03:53:56,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:53:56,374 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:53:56,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:53:56,879 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:53:56,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:53:57,038 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:53:57,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:57 WrapperNode [2019-11-28 03:53:57,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:53:57,040 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:53:57,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:53:57,041 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:53:57,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:57" (1/1) ... [2019-11-28 03:53:57,068 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:57" (1/1) ... [2019-11-28 03:53:57,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:53:57,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:53:57,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:53:57,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:53:57,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:57" (1/1) ... [2019-11-28 03:53:57,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:57" (1/1) ... [2019-11-28 03:53:57,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:57" (1/1) ... [2019-11-28 03:53:57,113 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:57" (1/1) ... [2019-11-28 03:53:57,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:57" (1/1) ... [2019-11-28 03:53:57,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:57" (1/1) ... [2019-11-28 03:53:57,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:57" (1/1) ... [2019-11-28 03:53:57,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:53:57,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:53:57,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:53:57,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:53:57,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:57" (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 [2019-11-28 03:53:57,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 03:53:57,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-28 03:53:57,217 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-28 03:53:57,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 03:53:57,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 03:53:57,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:53:57,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 03:53:57,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 03:53:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-28 03:53:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:53:57,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:53:57,444 WARN L759 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-28 03:53:57,810 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:53:57,810 INFO L297 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-28 03:53:57,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:53:57 BoogieIcfgContainer [2019-11-28 03:53:57,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:53:57,813 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:53:57,813 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:53:57,817 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:53:57,818 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:53:57,819 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:53:56" (1/3) ... [2019-11-28 03:53:57,820 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c556bfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:53:57, skipping insertion in model container [2019-11-28 03:53:57,820 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:53:57,820 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:57" (2/3) ... [2019-11-28 03:53:57,821 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c556bfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:53:57, skipping insertion in model container [2019-11-28 03:53:57,821 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:53:57,821 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:53:57" (3/3) ... [2019-11-28 03:53:57,823 INFO L371 chiAutomizerObserver]: Analyzing ICFG test-0214.i [2019-11-28 03:53:57,873 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:53:57,873 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:53:57,873 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:53:57,874 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:53:57,874 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:53:57,874 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:53:57,874 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:53:57,874 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:53:57,890 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states. [2019-11-28 03:53:57,920 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 33 [2019-11-28 03:53:57,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:53:57,920 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:53:57,929 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 03:53:57,930 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:53:57,930 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:53:57,930 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states. [2019-11-28 03:53:57,934 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 33 [2019-11-28 03:53:57,934 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:53:57,934 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:53:57,935 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 03:53:57,935 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:53:57,941 INFO L794 eck$LassoCheckResult]: Stem: 42#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#list~0.base, ~#list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 17#L-1true havoc main_#res;havoc main_#t~ret22, main_#t~nondet21, main_#t~ret24, main_#t~nondet23, main_#t~nondet20, main_#t~nondet25, main_#t~mem26.base, main_#t~mem26.offset, main_#t~mem27.base, main_#t~mem27.offset, main_~next~1.base, main_~next~1.offset, main_~end_point~0, main_~direction~0, main_~cursor~0.base, main_~cursor~0.offset; 39#L717-2true [2019-11-28 03:53:57,941 INFO L796 eck$LassoCheckResult]: Loop: 39#L717-2true assume !!(0 != main_#t~nondet20);havoc main_#t~nondet20; 21#L715-2true assume !true; 36#L717-1true assume !true; 39#L717-2true [2019-11-28 03:53:57,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:57,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 1 times [2019-11-28 03:53:57,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:57,954 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756970745] [2019-11-28 03:53:57,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:58,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:58,139 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:58,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:58,141 INFO L82 PathProgramCache]: Analyzing trace with hash 51626, now seen corresponding path program 1 times [2019-11-28 03:53:58,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:58,143 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687004218] [2019-11-28 03:53:58,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:58,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:53:58,190 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687004218] [2019-11-28 03:53:58,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:53:58,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 03:53:58,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622278237] [2019-11-28 03:53:58,202 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:53:58,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:53:58,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 03:53:58,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 03:53:58,224 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2019-11-28 03:53:58,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:53:58,243 INFO L93 Difference]: Finished difference Result 46 states and 63 transitions. [2019-11-28 03:53:58,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 03:53:58,246 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 63 transitions. [2019-11-28 03:53:58,254 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 33 [2019-11-28 03:53:58,266 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 42 states and 59 transitions. [2019-11-28 03:53:58,267 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2019-11-28 03:53:58,268 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2019-11-28 03:53:58,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 59 transitions. [2019-11-28 03:53:58,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:53:58,270 INFO L688 BuchiCegarLoop]: Abstraction has 42 states and 59 transitions. [2019-11-28 03:53:58,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 59 transitions. [2019-11-28 03:53:58,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2019-11-28 03:53:58,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-28 03:53:58,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 59 transitions. [2019-11-28 03:53:58,318 INFO L711 BuchiCegarLoop]: Abstraction has 42 states and 59 transitions. [2019-11-28 03:53:58,319 INFO L591 BuchiCegarLoop]: Abstraction has 42 states and 59 transitions. [2019-11-28 03:53:58,319 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:53:58,319 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 59 transitions. [2019-11-28 03:53:58,322 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 33 [2019-11-28 03:53:58,323 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:53:58,323 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:53:58,324 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 03:53:58,324 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:53:58,324 INFO L794 eck$LassoCheckResult]: Stem: 139#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#list~0.base, ~#list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 122#L-1 havoc main_#res;havoc main_#t~ret22, main_#t~nondet21, main_#t~ret24, main_#t~nondet23, main_#t~nondet20, main_#t~nondet25, main_#t~mem26.base, main_#t~mem26.offset, main_#t~mem27.base, main_#t~mem27.offset, main_~next~1.base, main_~next~1.offset, main_~end_point~0, main_~direction~0, main_~cursor~0.base, main_~cursor~0.offset; 123#L717-2 [2019-11-28 03:53:58,324 INFO L796 eck$LassoCheckResult]: Loop: 123#L717-2 assume !!(0 != main_#t~nondet20);havoc main_#t~nondet20; 124#L715-2 assume !(0 != main_#t~nondet21);havoc main_#t~nondet21; 125#L717-1 assume !(0 != main_#t~nondet23);havoc main_#t~nondet23; 123#L717-2 [2019-11-28 03:53:58,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:58,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 2 times [2019-11-28 03:53:58,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:58,326 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129999013] [2019-11-28 03:53:58,326 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:58,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:58,377 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:58,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:58,378 INFO L82 PathProgramCache]: Analyzing trace with hash 49935, now seen corresponding path program 1 times [2019-11-28 03:53:58,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:58,379 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457119218] [2019-11-28 03:53:58,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:58,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:58,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:58,390 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:58,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:58,391 INFO L82 PathProgramCache]: Analyzing trace with hash 37288685, now seen corresponding path program 1 times [2019-11-28 03:53:58,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:58,392 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965552934] [2019-11-28 03:53:58,392 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:58,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:58,419 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:58,556 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2019-11-28 03:53:58,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:53:58 BoogieIcfgContainer [2019-11-28 03:53:58,652 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:53:58,654 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:53:58,654 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:53:58,654 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:53:58,655 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:53:57" (3/4) ... [2019-11-28 03:53:58,659 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 03:53:58,730 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 03:53:58,730 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:53:58,733 INFO L168 Benchmark]: Toolchain (without parser) took 2425.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 952.3 MB in the beginning and 1.0 GB in the end (delta: -85.1 MB). Peak memory consumption was 74.8 MB. Max. memory is 11.5 GB. [2019-11-28 03:53:58,734 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:53:58,735 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2019-11-28 03:53:58,737 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.43 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-28 03:53:58,737 INFO L168 Benchmark]: Boogie Preprocessor took 41.01 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. [2019-11-28 03:53:58,738 INFO L168 Benchmark]: RCFGBuilder took 672.75 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: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 11.5 GB. [2019-11-28 03:53:58,739 INFO L168 Benchmark]: BuchiAutomizer took 839.57 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: 44.7 MB). Peak memory consumption was 44.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:53:58,740 INFO L168 Benchmark]: Witness Printer took 76.75 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. [2019-11-28 03:53:58,745 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 731.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.43 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.01 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 672.75 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: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 839.57 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: 44.7 MB). Peak memory consumption was 44.7 MB. Max. memory is 11.5 GB. * Witness Printer took 76.75 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 Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 2 locations. The remainder module has 42 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 42 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 63 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 714]: 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 {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3639a7e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a776c55=0, NULL=0, \result=0, end_point=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@125d60b9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@125d60b9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41851b4=12, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e0b0e3e=0, NULL=0, list=2, list=0, next=0, next=0, cursor=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@130cacf2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@4edbdf02=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@594eecdb=0, cursor=0, direction=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@4edbdf02=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 714]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L713] static list_t list; Loop: [L714] COND TRUE __VERIFIER_nondet_int() [L715] COND FALSE !(__VERIFIER_nondet_int()) [L717] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...