./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/memsafety/test-0214_true-valid-memsafety_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 91b1670e 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/memsafety/test-0214_true-valid-memsafety_false-termination.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 116f75368ed7cbe2e5fe45b6165a0ef798ccc1e7 ........................................................................................................................................................................................................................................................................................................................... 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 0.1.24-91b1670 [2018-11-29 00:11:50,820 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-29 00:11:50,822 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-29 00:11:50,834 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-29 00:11:50,835 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-29 00:11:50,836 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-29 00:11:50,837 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-29 00:11:50,839 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-29 00:11:50,841 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-29 00:11:50,842 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-29 00:11:50,843 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-29 00:11:50,843 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-29 00:11:50,844 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-29 00:11:50,845 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-29 00:11:50,846 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-29 00:11:50,847 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-29 00:11:50,848 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-29 00:11:50,850 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-29 00:11:50,853 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-29 00:11:50,855 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-29 00:11:50,856 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-29 00:11:50,858 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-29 00:11:50,861 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-29 00:11:50,861 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-29 00:11:50,862 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-29 00:11:50,863 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-29 00:11:50,864 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-29 00:11:50,865 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-29 00:11:50,866 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-29 00:11:50,867 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-29 00:11:50,867 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-29 00:11:50,868 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-29 00:11:50,868 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-29 00:11:50,869 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-29 00:11:50,870 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-29 00:11:50,871 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-29 00:11:50,871 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-29 00:11:50,889 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-29 00:11:50,890 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-29 00:11:50,891 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-29 00:11:50,891 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-29 00:11:50,892 INFO L133 SettingsManager]: * Use SBE=true [2018-11-29 00:11:50,892 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-29 00:11:50,892 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-29 00:11:50,893 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-29 00:11:50,893 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-29 00:11:50,893 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-29 00:11:50,893 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-29 00:11:50,894 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-29 00:11:50,894 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-29 00:11:50,894 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-29 00:11:50,894 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-29 00:11:50,895 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-29 00:11:50,895 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-29 00:11:50,895 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-29 00:11:50,896 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-29 00:11:50,896 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-29 00:11:50,896 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-29 00:11:50,896 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-29 00:11:50,897 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-29 00:11:50,897 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-29 00:11:50,897 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-29 00:11:50,897 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-29 00:11:50,898 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-29 00:11:50,898 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-29 00:11:50,898 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-29 00:11:50,899 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-29 00:11:50,899 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-29 00:11:50,900 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-29 00:11:50,900 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 116f75368ed7cbe2e5fe45b6165a0ef798ccc1e7 [2018-11-29 00:11:50,936 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-29 00:11:50,953 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-29 00:11:50,959 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-29 00:11:50,962 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-29 00:11:50,962 INFO L276 PluginConnector]: CDTParser initialized [2018-11-29 00:11:50,963 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/memsafety/test-0214_true-valid-memsafety_false-termination.i [2018-11-29 00:11:51,037 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9119cebcb/d511fd4e41bd484a9db5eccb25cbc87c/FLAG4efbab882 [2018-11-29 00:11:51,616 INFO L307 CDTParser]: Found 1 translation units. [2018-11-29 00:11:51,616 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/memsafety/test-0214_true-valid-memsafety_false-termination.i [2018-11-29 00:11:51,638 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9119cebcb/d511fd4e41bd484a9db5eccb25cbc87c/FLAG4efbab882 [2018-11-29 00:11:51,858 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9119cebcb/d511fd4e41bd484a9db5eccb25cbc87c [2018-11-29 00:11:51,863 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-29 00:11:51,865 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-29 00:11:51,866 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-29 00:11:51,866 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-29 00:11:51,874 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-29 00:11:51,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:11:51" (1/1) ... [2018-11-29 00:11:51,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d1fba3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:51, skipping insertion in model container [2018-11-29 00:11:51,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:11:51" (1/1) ... [2018-11-29 00:11:51,890 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-29 00:11:51,947 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-29 00:11:52,389 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-29 00:11:52,408 INFO L191 MainTranslator]: Completed pre-run [2018-11-29 00:11:52,565 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-29 00:11:52,649 INFO L195 MainTranslator]: Completed translation [2018-11-29 00:11:52,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:52 WrapperNode [2018-11-29 00:11:52,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-29 00:11:52,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-29 00:11:52,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-29 00:11:52,650 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-29 00:11:52,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:52" (1/1) ... [2018-11-29 00:11:52,696 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:52" (1/1) ... [2018-11-29 00:11:52,734 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-29 00:11:52,735 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-29 00:11:52,735 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-29 00:11:52,735 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-29 00:11:52,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:52" (1/1) ... [2018-11-29 00:11:52,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:52" (1/1) ... [2018-11-29 00:11:52,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:52" (1/1) ... [2018-11-29 00:11:52,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:52" (1/1) ... [2018-11-29 00:11:52,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:52" (1/1) ... [2018-11-29 00:11:52,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:52" (1/1) ... [2018-11-29 00:11:52,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:52" (1/1) ... [2018-11-29 00:11:52,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-29 00:11:52,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-29 00:11:52,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-29 00:11:52,791 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-29 00:11:52,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:52" (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 [2018-11-29 00:11:52,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-29 00:11:52,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-29 00:11:52,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-11-29 00:11:52,858 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-11-29 00:11:52,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-29 00:11:52,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-29 00:11:52,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-29 00:11:52,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-29 00:11:52,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-29 00:11:52,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-29 00:11:53,075 WARN L615 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-29 00:11:53,682 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-29 00:11:53,682 INFO L280 CfgBuilder]: Removed 20 assue(true) statements. [2018-11-29 00:11:53,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:11:53 BoogieIcfgContainer [2018-11-29 00:11:53,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-29 00:11:53,685 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-29 00:11:53,685 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-29 00:11:53,690 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-29 00:11:53,692 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-29 00:11:53,692 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 12:11:51" (1/3) ... [2018-11-29 00:11:53,693 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25745e98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 12:11:53, skipping insertion in model container [2018-11-29 00:11:53,693 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-29 00:11:53,693 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:52" (2/3) ... [2018-11-29 00:11:53,695 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25745e98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 12:11:53, skipping insertion in model container [2018-11-29 00:11:53,696 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-29 00:11:53,696 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:11:53" (3/3) ... [2018-11-29 00:11:53,698 INFO L375 chiAutomizerObserver]: Analyzing ICFG test-0214_true-valid-memsafety_false-termination.i [2018-11-29 00:11:53,767 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-29 00:11:53,768 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-29 00:11:53,769 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-29 00:11:53,769 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-29 00:11:53,769 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-29 00:11:53,769 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-29 00:11:53,769 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-29 00:11:53,770 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-29 00:11:53,770 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-29 00:11:53,793 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states. [2018-11-29 00:11:53,834 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 33 [2018-11-29 00:11:53,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-29 00:11:53,835 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-29 00:11:53,845 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-29 00:11:53,845 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-29 00:11:53,845 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-29 00:11:53,845 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states. [2018-11-29 00:11:53,850 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 33 [2018-11-29 00:11:53,850 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-29 00:11:53,850 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-29 00:11:53,852 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-29 00:11:53,853 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-29 00:11:53,862 INFO L794 eck$LassoCheckResult]: Stem: 35#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call ~#list~0.base, ~#list~0.offset := #Ultimate.alloc(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); 15#L-1true havoc main_#res;havoc main_#t~ret20, main_#t~nondet19, main_#t~ret22, main_#t~nondet21, main_#t~nondet18, main_#t~nondet23, main_#t~mem24.base, main_#t~mem24.offset, main_#t~mem25.base, main_#t~mem25.offset, main_~next~1.base, main_~next~1.offset, main_~end_point~0, main_~direction~0, main_~cursor~0.base, main_~cursor~0.offset; 26#L828-2true [2018-11-29 00:11:53,862 INFO L796 eck$LassoCheckResult]: Loop: 26#L828-2true assume !!(0 != main_#t~nondet18);havoc main_#t~nondet18; 7#L826-2true assume !true; 22#L828-1true assume !true; 26#L828-2true [2018-11-29 00:11:53,868 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:11:53,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 1 times [2018-11-29 00:11:53,871 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:11:53,871 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:11:53,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:11:53,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-29 00:11:53,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:11:53,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:11:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:11:53,994 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:11:53,994 INFO L82 PathProgramCache]: Analyzing trace with hash 51626, now seen corresponding path program 1 times [2018-11-29 00:11:53,994 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:11:53,994 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:11:53,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:11:53,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-29 00:11:53,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:11:53,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-29 00:11:54,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-29 00:11:54,025 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-29 00:11:54,026 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-29 00:11:54,029 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-29 00:11:54,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-29 00:11:54,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-29 00:11:54,047 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2018-11-29 00:11:54,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-29 00:11:54,059 INFO L93 Difference]: Finished difference Result 46 states and 63 transitions. [2018-11-29 00:11:54,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-29 00:11:54,062 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 63 transitions. [2018-11-29 00:11:54,065 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 33 [2018-11-29 00:11:54,071 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 42 states and 59 transitions. [2018-11-29 00:11:54,072 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2018-11-29 00:11:54,073 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2018-11-29 00:11:54,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 59 transitions. [2018-11-29 00:11:54,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-29 00:11:54,074 INFO L705 BuchiCegarLoop]: Abstraction has 42 states and 59 transitions. [2018-11-29 00:11:54,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 59 transitions. [2018-11-29 00:11:54,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-11-29 00:11:54,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-29 00:11:54,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 59 transitions. [2018-11-29 00:11:54,111 INFO L728 BuchiCegarLoop]: Abstraction has 42 states and 59 transitions. [2018-11-29 00:11:54,111 INFO L608 BuchiCegarLoop]: Abstraction has 42 states and 59 transitions. [2018-11-29 00:11:54,112 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-29 00:11:54,112 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 59 transitions. [2018-11-29 00:11:54,113 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 33 [2018-11-29 00:11:54,114 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-29 00:11:54,114 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-29 00:11:54,114 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-29 00:11:54,114 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-29 00:11:54,115 INFO L794 eck$LassoCheckResult]: Stem: 138#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call ~#list~0.base, ~#list~0.offset := #Ultimate.alloc(8);call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 122#L-1 havoc main_#res;havoc main_#t~ret20, main_#t~nondet19, main_#t~ret22, main_#t~nondet21, main_#t~nondet18, main_#t~nondet23, main_#t~mem24.base, main_#t~mem24.offset, main_#t~mem25.base, main_#t~mem25.offset, main_~next~1.base, main_~next~1.offset, main_~end_point~0, main_~direction~0, main_~cursor~0.base, main_~cursor~0.offset; 123#L828-2 [2018-11-29 00:11:54,115 INFO L796 eck$LassoCheckResult]: Loop: 123#L828-2 assume !!(0 != main_#t~nondet18);havoc main_#t~nondet18; 108#L826-2 assume !(0 != main_#t~nondet19);havoc main_#t~nondet19; 109#L828-1 assume !(0 != main_#t~nondet21);havoc main_#t~nondet21; 123#L828-2 [2018-11-29 00:11:54,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:11:54,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 2 times [2018-11-29 00:11:54,116 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:11:54,116 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:11:54,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:11:54,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-29 00:11:54,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:11:54,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:11:54,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:11:54,137 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:11:54,137 INFO L82 PathProgramCache]: Analyzing trace with hash 49935, now seen corresponding path program 1 times [2018-11-29 00:11:54,137 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:11:54,137 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:11:54,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:11:54,139 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-29 00:11:54,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:11:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:11:54,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:11:54,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-29 00:11:54,153 INFO L82 PathProgramCache]: Analyzing trace with hash 37288685, now seen corresponding path program 1 times [2018-11-29 00:11:54,154 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-29 00:11:54,154 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-29 00:11:54,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:11:54,156 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-29 00:11:54,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-29 00:11:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:11:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-29 00:11:54,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 12:11:54 BoogieIcfgContainer [2018-11-29 00:11:54,420 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-29 00:11:54,421 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-29 00:11:54,421 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-29 00:11:54,421 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-29 00:11:54,422 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:11:53" (3/4) ... [2018-11-29 00:11:54,425 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-29 00:11:54,468 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-29 00:11:54,468 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-29 00:11:54,469 INFO L168 Benchmark]: Toolchain (without parser) took 2605.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 947.3 MB in the beginning and 1.0 GB in the end (delta: -87.5 MB). Peak memory consumption was 55.7 MB. Max. memory is 11.5 GB. [2018-11-29 00:11:54,471 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-29 00:11:54,472 INFO L168 Benchmark]: CACSL2BoogieTranslator took 783.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -173.3 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2018-11-29 00:11:54,473 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.49 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-29 00:11:54,474 INFO L168 Benchmark]: Boogie Preprocessor took 55.13 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. [2018-11-29 00:11:54,474 INFO L168 Benchmark]: RCFGBuilder took 892.86 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: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. [2018-11-29 00:11:54,475 INFO L168 Benchmark]: BuchiAutomizer took 735.14 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: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 11.5 GB. [2018-11-29 00:11:54,476 INFO L168 Benchmark]: Witness Printer took 47.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-29 00:11:54,482 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 783.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -173.3 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 84.49 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.13 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 892.86 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: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 735.14 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: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 11.5 GB. * Witness Printer took 47.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. 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 0.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. 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: 825]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c02a93a=0, NULL=0, \result=0, end_point=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@42d19b06=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@4dbc77da=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@42d19b06=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f44bd35=0, NULL=0, list=2, list=0, next=0, next=0, cursor=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d53828b=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f4d994=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44e556f3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73f4b792=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@4dbc77da=0, cursor=0, direction=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 825]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L824] static list_t list; Loop: [L825] COND TRUE __VERIFIER_nondet_int() [L826] COND FALSE !(__VERIFIER_nondet_int()) [L828] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...