./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety-ext3/naturalNumbers1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f4d5612c 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/memsafety-ext3/naturalNumbers1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 932f76685ed1816d93a388d0ab1addae9c51483a ............................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/memsafety-ext3/naturalNumbers1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.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(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 932f76685ed1816d93a388d0ab1addae9c51483a ........................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.24-f4d5612 [2019-11-28 12:51:47,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 12:51:47,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 12:51:47,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 12:51:47,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 12:51:47,681 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 12:51:47,683 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 12:51:47,693 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 12:51:47,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 12:51:47,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 12:51:47,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 12:51:47,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 12:51:47,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 12:51:47,710 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 12:51:47,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 12:51:47,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 12:51:47,715 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 12:51:47,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 12:51:47,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 12:51:47,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 12:51:47,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 12:51:47,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 12:51:47,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 12:51:47,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 12:51:47,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 12:51:47,738 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 12:51:47,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 12:51:47,740 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 12:51:47,741 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 12:51:47,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 12:51:47,742 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 12:51:47,743 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 12:51:47,744 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 12:51:47,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 12:51:47,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 12:51:47,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 12:51:47,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 12:51:47,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 12:51:47,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 12:51:47,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 12:51:47,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 12:51:47,752 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-28 12:51:47,790 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 12:51:47,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 12:51:47,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 12:51:47,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 12:51:47,793 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 12:51:47,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 12:51:47,795 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 12:51:47,795 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 12:51:47,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 12:51:47,795 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 12:51:47,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 12:51:47,796 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 12:51:47,797 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 12:51:47,797 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 12:51:47,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 12:51:47,798 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 12:51:47,798 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 12:51:47,798 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 12:51:47,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 12:51:47,799 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 12:51:47,799 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 12:51:47,799 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 12:51:47,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 12:51:47,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 12:51:47,801 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 12:51:47,801 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 12:51:47,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 12:51:47,801 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 932f76685ed1816d93a388d0ab1addae9c51483a [2019-11-28 12:51:48,104 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 12:51:48,117 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 12:51:48,120 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 12:51:48,122 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 12:51:48,123 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 12:51:48,123 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext3/naturalNumbers1.c [2019-11-28 12:51:48,185 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/639b27c73/18adb63dbdc94c5094281348955b4a61/FLAG8772658d2 [2019-11-28 12:51:48,608 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 12:51:48,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext3/naturalNumbers1.c [2019-11-28 12:51:48,613 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/639b27c73/18adb63dbdc94c5094281348955b4a61/FLAG8772658d2 [2019-11-28 12:51:49,039 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/639b27c73/18adb63dbdc94c5094281348955b4a61 [2019-11-28 12:51:49,043 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 12:51:49,045 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 12:51:49,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 12:51:49,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 12:51:49,050 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 12:51:49,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:51:49" (1/1) ... [2019-11-28 12:51:49,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a48a79f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:51:49, skipping insertion in model container [2019-11-28 12:51:49,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:51:49" (1/1) ... [2019-11-28 12:51:49,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 12:51:49,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 12:51:49,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 12:51:49,331 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2019-11-28 12:51:49,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@233511f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:51:49, skipping insertion in model container [2019-11-28 12:51:49,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 12:51:49,334 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-11-28 12:51:49,338 INFO L168 Benchmark]: Toolchain (without parser) took 290.86 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 12:51:49,340 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 12:51:49,341 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.30 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 12:51:49,343 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 287.30 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 15]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-f4d5612 [2019-11-28 12:51:51,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 12:51:51,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 12:51:51,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 12:51:51,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 12:51:51,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 12:51:51,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 12:51:51,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 12:51:51,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 12:51:51,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 12:51:51,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 12:51:51,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 12:51:51,108 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 12:51:51,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 12:51:51,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 12:51:51,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 12:51:51,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 12:51:51,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 12:51:51,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 12:51:51,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 12:51:51,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 12:51:51,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 12:51:51,133 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 12:51:51,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 12:51:51,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 12:51:51,142 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 12:51:51,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 12:51:51,144 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 12:51:51,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 12:51:51,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 12:51:51,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 12:51:51,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 12:51:51,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 12:51:51,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 12:51:51,152 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 12:51:51,152 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 12:51:51,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 12:51:51,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 12:51:51,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 12:51:51,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 12:51:51,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 12:51:51,160 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-28 12:51:51,182 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 12:51:51,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 12:51:51,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 12:51:51,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 12:51:51,185 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 12:51:51,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 12:51:51,186 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 12:51:51,186 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 12:51:51,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 12:51:51,187 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 12:51:51,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 12:51:51,188 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 12:51:51,189 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 12:51:51,189 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 12:51:51,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 12:51:51,190 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 12:51:51,190 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 12:51:51,190 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 12:51:51,190 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 12:51:51,191 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 12:51:51,191 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 12:51:51,192 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 12:51:51,192 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 12:51:51,192 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 12:51:51,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 12:51:51,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 12:51:51,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 12:51:51,193 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 12:51:51,193 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 12:51:51,194 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 12:51:51,194 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 932f76685ed1816d93a388d0ab1addae9c51483a [2019-11-28 12:51:51,505 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 12:51:51,525 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 12:51:51,529 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 12:51:51,530 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 12:51:51,531 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 12:51:51,532 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext3/naturalNumbers1.c [2019-11-28 12:51:51,606 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/634770f08/4a033345dbf440fc9ecf1eabed3555b4/FLAGe5a10fb1c [2019-11-28 12:51:52,072 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 12:51:52,073 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext3/naturalNumbers1.c [2019-11-28 12:51:52,079 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/634770f08/4a033345dbf440fc9ecf1eabed3555b4/FLAGe5a10fb1c [2019-11-28 12:51:52,457 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/634770f08/4a033345dbf440fc9ecf1eabed3555b4 [2019-11-28 12:51:52,461 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 12:51:52,463 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 12:51:52,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 12:51:52,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 12:51:52,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 12:51:52,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:51:52" (1/1) ... [2019-11-28 12:51:52,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57fe78cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:51:52, skipping insertion in model container [2019-11-28 12:51:52,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:51:52" (1/1) ... [2019-11-28 12:51:52,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 12:51:52,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 12:51:52,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 12:51:52,699 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-28 12:51:52,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 12:51:52,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 12:51:52,722 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 12:51:52,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 12:51:52,816 INFO L208 MainTranslator]: Completed translation [2019-11-28 12:51:52,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:51:52 WrapperNode [2019-11-28 12:51:52,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 12:51:52,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 12:51:52,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 12:51:52,817 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 12:51:52,827 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:51:52" (1/1) ... [2019-11-28 12:51:52,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:51:52" (1/1) ... [2019-11-28 12:51:52,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:51:52" (1/1) ... [2019-11-28 12:51:52,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:51:52" (1/1) ... [2019-11-28 12:51:52,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:51:52" (1/1) ... [2019-11-28 12:51:52,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:51:52" (1/1) ... [2019-11-28 12:51:52,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:51:52" (1/1) ... [2019-11-28 12:51:52,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 12:51:52,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 12:51:52,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 12:51:52,859 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 12:51:52,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:51:52" (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:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 12:51:52,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 12:51:52,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 12:51:52,927 INFO L138 BoogieDeclarations]: Found implementation of procedure areNatural [2019-11-28 12:51:52,928 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 12:51:52,928 INFO L130 BoogieDeclarations]: Found specification of procedure areNatural [2019-11-28 12:51:52,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-28 12:51:52,928 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 12:51:52,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 12:51:52,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-11-28 12:51:52,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 12:51:52,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 12:51:52,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 12:51:52,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2019-11-28 12:51:52,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-28 12:51:52,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2019-11-28 12:51:53,200 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 12:51:53,201 INFO L287 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-28 12:51:53,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:51:53 BoogieIcfgContainer [2019-11-28 12:51:53,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 12:51:53,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 12:51:53,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 12:51:53,208 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 12:51:53,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:51:52" (1/3) ... [2019-11-28 12:51:53,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9aa963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:51:53, skipping insertion in model container [2019-11-28 12:51:53,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:51:52" (2/3) ... [2019-11-28 12:51:53,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9aa963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:51:53, skipping insertion in model container [2019-11-28 12:51:53,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:51:53" (3/3) ... [2019-11-28 12:51:53,212 INFO L109 eAbstractionObserver]: Analyzing ICFG naturalNumbers1.c [2019-11-28 12:51:53,226 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 12:51:53,234 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-28 12:51:53,247 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-28 12:51:53,275 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 12:51:53,275 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 12:51:53,276 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 12:51:53,276 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 12:51:53,276 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 12:51:53,276 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 12:51:53,277 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 12:51:53,277 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 12:51:53,295 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-11-28 12:51:53,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 12:51:53,304 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:51:53,305 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:51:53,306 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, areNaturalErr1REQUIRES_VIOLATION, areNaturalErr0REQUIRES_VIOLATION]=== [2019-11-28 12:51:53,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:51:53,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1845664052, now seen corresponding path program 1 times [2019-11-28 12:51:53,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:51:53,322 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [634619838] [2019-11-28 12:51:53,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-28 12:51:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:51:53,423 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 12:51:53,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:51:53,479 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-28 12:51:53,480 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 12:51:53,494 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:51:53,495 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 12:51:53,495 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-28 12:51:53,546 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 12:51:53,547 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:51:53,564 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 12:51:53,565 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [634619838] [2019-11-28 12:51:53,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:51:53,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-28 12:51:53,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237499844] [2019-11-28 12:51:53,581 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 12:51:53,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:51:53,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 12:51:53,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 12:51:53,602 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 5 states. [2019-11-28 12:51:53,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:51:53,717 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-11-28 12:51:53,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 12:51:53,719 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-11-28 12:51:53,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:51:53,727 INFO L225 Difference]: With dead ends: 21 [2019-11-28 12:51:53,728 INFO L226 Difference]: Without dead ends: 18 [2019-11-28 12:51:53,730 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 12:51:53,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-28 12:51:53,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-28 12:51:53,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-28 12:51:53,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2019-11-28 12:51:53,766 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 10 [2019-11-28 12:51:53,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:51:53,766 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2019-11-28 12:51:53,767 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 12:51:53,767 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2019-11-28 12:51:53,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 12:51:53,768 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:51:53,768 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:51:53,977 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 12:51:53,978 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, areNaturalErr1REQUIRES_VIOLATION, areNaturalErr0REQUIRES_VIOLATION]=== [2019-11-28 12:51:53,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:51:53,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1845664051, now seen corresponding path program 1 times [2019-11-28 12:51:53,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:51:53,981 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983333695] [2019-11-28 12:51:53,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-28 12:51:54,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:51:54,022 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 12:51:54,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:51:54,036 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-28 12:51:54,036 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 12:51:54,046 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 12:51:54,047 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 12:51:54,047 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-28 12:51:54,099 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 12:51:54,099 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:51:54,349 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 12:51:54,350 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983333695] [2019-11-28 12:51:54,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:51:54,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-11-28 12:51:54,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058735593] [2019-11-28 12:51:54,353 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 12:51:54,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:51:54,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 12:51:54,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-28 12:51:54,359 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 8 states. [2019-11-28 12:51:54,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:51:54,690 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2019-11-28 12:51:54,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 12:51:54,691 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2019-11-28 12:51:54,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:51:54,695 INFO L225 Difference]: With dead ends: 28 [2019-11-28 12:51:54,695 INFO L226 Difference]: Without dead ends: 28 [2019-11-28 12:51:54,696 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-11-28 12:51:54,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-11-28 12:51:54,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 23. [2019-11-28 12:51:54,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-28 12:51:54,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-11-28 12:51:54,703 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 10 [2019-11-28 12:51:54,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:51:54,704 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-11-28 12:51:54,704 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 12:51:54,704 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-11-28 12:51:54,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 12:51:54,705 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:51:54,705 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:51:54,908 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 12:51:54,909 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, areNaturalErr1REQUIRES_VIOLATION, areNaturalErr0REQUIRES_VIOLATION]=== [2019-11-28 12:51:54,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:51:54,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1907814666, now seen corresponding path program 1 times [2019-11-28 12:51:54,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:51:54,913 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092401045] [2019-11-28 12:51:54,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-28 12:51:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 12:51:54,965 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-28 12:51:54,967 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 12:51:55,137 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 12:51:55,137 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 12:51:55,506 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 12:51:55,506 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092401045] [2019-11-28 12:51:55,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 12:51:55,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2019-11-28 12:51:55,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395182762] [2019-11-28 12:51:55,508 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-28 12:51:55,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 12:51:55,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-28 12:51:55,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-11-28 12:51:55,509 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 11 states. [2019-11-28 12:51:55,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 12:51:55,821 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2019-11-28 12:51:55,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 12:51:55,822 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 15 [2019-11-28 12:51:55,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 12:51:55,823 INFO L225 Difference]: With dead ends: 25 [2019-11-28 12:51:55,823 INFO L226 Difference]: Without dead ends: 23 [2019-11-28 12:51:55,824 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2019-11-28 12:51:55,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-28 12:51:55,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-28 12:51:55,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-28 12:51:55,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2019-11-28 12:51:55,828 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 15 [2019-11-28 12:51:55,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 12:51:55,829 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2019-11-28 12:51:55,829 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-28 12:51:55,829 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2019-11-28 12:51:55,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 12:51:55,830 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 12:51:55,830 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 12:51:56,032 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-28 12:51:56,033 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, areNaturalErr1REQUIRES_VIOLATION, areNaturalErr0REQUIRES_VIOLATION]=== [2019-11-28 12:51:56,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 12:51:56,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1004346541, now seen corresponding path program 1 times [2019-11-28 12:51:56,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 12:51:56,037 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1944520913] [2019-11-28 12:51:56,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-28 12:51:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 12:51:56,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 12:51:56,140 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-28 12:51:56,140 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 12:51:56,341 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-28 12:51:56,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:51:56 BoogieIcfgContainer [2019-11-28 12:51:56,369 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 12:51:56,370 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 12:51:56,370 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 12:51:56,370 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 12:51:56,371 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:51:53" (3/4) ... [2019-11-28 12:51:56,373 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 12:51:56,418 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 12:51:56,419 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 12:51:56,421 INFO L168 Benchmark]: Toolchain (without parser) took 3957.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 80.7 MB). Free memory was 956.3 MB in the beginning and 904.7 MB in the end (delta: 51.7 MB). Peak memory consumption was 132.4 MB. Max. memory is 11.5 GB. [2019-11-28 12:51:56,422 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 12:51:56,423 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 80.7 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -120.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-28 12:51:56,424 INFO L168 Benchmark]: Boogie Preprocessor took 41.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-28 12:51:56,424 INFO L168 Benchmark]: RCFGBuilder took 343.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-11-28 12:51:56,425 INFO L168 Benchmark]: TraceAbstraction took 3165.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 911.6 MB in the end (delta: 137.8 MB). Peak memory consumption was 137.8 MB. Max. memory is 11.5 GB. [2019-11-28 12:51:56,426 INFO L168 Benchmark]: Witness Printer took 49.10 ms. Allocated memory is still 1.1 GB. Free memory was 911.6 MB in the beginning and 904.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-28 12:51:56,430 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 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 352.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 80.7 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -120.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 343.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3165.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 911.6 MB in the end (delta: 137.8 MB). Peak memory consumption was 137.8 MB. Max. memory is 11.5 GB. * Witness Printer took 49.10 ms. Allocated memory is still 1.1 GB. Free memory was 911.6 MB in the beginning and 904.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L13] char numbers[] = {0,1,2,3,4,5,6,7,8,9}; VAL [numbers={3:0}] [L15] CALL areNatural((int*) numbers) VAL [numbers={3:0}] [L2] int i = 0; VAL [i=0, numbers={3:0}, numbers={3:0}] [L3] COND TRUE i < 10 VAL [i=0, numbers={3:0}, numbers={3:0}] [L4] EXPR numbers[i] VAL [i=0, numbers={3:0}, numbers={3:0}, numbers[i]=50462976] [L4] COND FALSE !(numbers[i] <= 0) [L7] i++ VAL [i=1, numbers={3:0}, numbers={3:0}] [L3] COND TRUE i < 10 VAL [i=1, numbers={3:0}, numbers={3:0}] [L4] EXPR numbers[i] VAL [i=1, numbers={3:0}, numbers={3:0}, numbers[i]=117835012] [L4] COND FALSE !(numbers[i] <= 0) [L7] i++ VAL [i=2, numbers={3:0}, numbers={3:0}] [L3] COND TRUE i < 10 VAL [i=2, numbers={3:0}, numbers={3:0}] [L4] numbers[i] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 3 error locations. Result: UNSAFE, OverallTime: 3.0s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 41 SDtfs, 63 SDslu, 105 SDs, 0 SdLazy, 110 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 64 ConstructedInterpolants, 6 QuantifiedInterpolants, 8392 SizeOfPredicates, 11 NumberOfNonLiveVariables, 147 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...