./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety/lis_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/array-memsafety/lis_unsafe.i -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 22d1ff4f4fd6702e3a4a8affc05625a9c9bb8113 .................................................................................................................................. 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 -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/array-memsafety/lis_unsafe.i -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 22d1ff4f4fd6702e3a4a8affc05625a9c9bb8113 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.2.0-5485861 [2020-10-26 03:25:53,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 03:25:53,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 03:25:53,075 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 03:25:53,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 03:25:53,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 03:25:53,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 03:25:53,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 03:25:53,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 03:25:53,085 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 03:25:53,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 03:25:53,088 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 03:25:53,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 03:25:53,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 03:25:53,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 03:25:53,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 03:25:53,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 03:25:53,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 03:25:53,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 03:25:53,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 03:25:53,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 03:25:53,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 03:25:53,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 03:25:53,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 03:25:53,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 03:25:53,114 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 03:25:53,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 03:25:53,116 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 03:25:53,116 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 03:25:53,118 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 03:25:53,118 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 03:25:53,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 03:25:53,121 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 03:25:53,122 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 03:25:53,123 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 03:25:53,124 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 03:25:53,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 03:25:53,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 03:25:53,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 03:25:53,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 03:25:53,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 03:25:53,130 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-26 03:25:53,169 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 03:25:53,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 03:25:53,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 03:25:53,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 03:25:53,172 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 03:25:53,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 03:25:53,173 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 03:25:53,173 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 03:25:53,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 03:25:53,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 03:25:53,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 03:25:53,174 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-26 03:25:53,175 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-26 03:25:53,175 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-26 03:25:53,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 03:25:53,176 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-26 03:25:53,176 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 03:25:53,176 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 03:25:53,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 03:25:53,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 03:25:53,177 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 03:25:53,178 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 03:25:53,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 03:25:53,179 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 03:25:53,179 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 03:25:53,179 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 03:25:53,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 03:25:53,180 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 03:25:53,180 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22d1ff4f4fd6702e3a4a8affc05625a9c9bb8113 [2020-10-26 03:25:53,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 03:25:53,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 03:25:53,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 03:25:53,662 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 03:25:53,664 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 03:25:53,665 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/lis_unsafe.i [2020-10-26 03:25:53,756 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fad29ffa6/ede4a1dc570f4a608b5ee787a33464c3/FLAGc594b2e4f [2020-10-26 03:25:54,501 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 03:25:54,502 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/lis_unsafe.i [2020-10-26 03:25:54,523 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fad29ffa6/ede4a1dc570f4a608b5ee787a33464c3/FLAGc594b2e4f [2020-10-26 03:25:54,765 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fad29ffa6/ede4a1dc570f4a608b5ee787a33464c3 [2020-10-26 03:25:54,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 03:25:54,782 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-26 03:25:54,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 03:25:54,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 03:25:54,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 03:25:54,793 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:25:54" (1/1) ... [2020-10-26 03:25:54,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cfe116d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:25:54, skipping insertion in model container [2020-10-26 03:25:54,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:25:54" (1/1) ... [2020-10-26 03:25:54,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 03:25:54,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 03:25:55,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:25:55,292 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) [2020-10-26 03:25:55,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@c9127d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:25:55, skipping insertion in model container [2020-10-26 03:25:55,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 03:25:55,294 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-26 03:25:55,297 INFO L168 Benchmark]: Toolchain (without parser) took 520.05 ms. Allocated memory is still 48.2 MB. Free memory was 22.6 MB in the beginning and 26.2 MB in the end (delta: -3.6 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. [2020-10-26 03:25:55,298 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 48.2 MB. Free memory is still 29.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 03:25:55,302 INFO L168 Benchmark]: CACSL2BoogieTranslator took 507.84 ms. Allocated memory is still 48.2 MB. Free memory was 22.0 MB in the beginning and 26.2 MB in the end (delta: -4.1 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. [2020-10-26 03:25:55,305 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 48.2 MB. Free memory is still 29.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 507.84 ms. Allocated memory is still 48.2 MB. Free memory was 22.0 MB in the beginning and 26.2 MB in the end (delta: -4.1 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 515]: 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 0.2.0-5485861 [2020-10-26 03:25:57,711 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 03:25:57,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 03:25:57,749 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 03:25:57,750 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 03:25:57,751 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 03:25:57,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 03:25:57,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 03:25:57,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 03:25:57,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 03:25:57,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 03:25:57,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 03:25:57,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 03:25:57,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 03:25:57,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 03:25:57,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 03:25:57,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 03:25:57,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 03:25:57,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 03:25:57,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 03:25:57,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 03:25:57,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 03:25:57,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 03:25:57,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 03:25:57,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 03:25:57,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 03:25:57,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 03:25:57,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 03:25:57,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 03:25:57,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 03:25:57,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 03:25:57,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 03:25:57,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 03:25:57,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 03:25:57,805 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 03:25:57,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 03:25:57,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 03:25:57,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 03:25:57,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 03:25:57,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 03:25:57,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 03:25:57,809 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-26 03:25:57,839 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 03:25:57,839 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 03:25:57,841 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 03:25:57,841 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 03:25:57,841 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 03:25:57,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 03:25:57,842 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 03:25:57,842 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 03:25:57,842 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 03:25:57,843 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 03:25:57,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 03:25:57,843 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-26 03:25:57,843 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-26 03:25:57,844 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-26 03:25:57,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 03:25:57,844 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-26 03:25:57,844 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-26 03:25:57,844 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-26 03:25:57,845 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 03:25:57,845 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 03:25:57,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 03:25:57,845 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 03:25:57,846 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 03:25:57,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 03:25:57,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 03:25:57,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 03:25:57,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 03:25:57,847 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-26 03:25:57,847 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-26 03:25:57,847 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 03:25:57,848 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-26 03:25:57,848 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22d1ff4f4fd6702e3a4a8affc05625a9c9bb8113 [2020-10-26 03:25:58,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 03:25:58,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 03:25:58,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 03:25:58,340 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 03:25:58,341 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 03:25:58,342 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/lis_unsafe.i [2020-10-26 03:25:58,433 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5fe47563/3fe85b880fab421ca4f29156fdec85bd/FLAG800f25d01 [2020-10-26 03:25:59,173 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 03:25:59,174 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/lis_unsafe.i [2020-10-26 03:25:59,193 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5fe47563/3fe85b880fab421ca4f29156fdec85bd/FLAG800f25d01 [2020-10-26 03:25:59,446 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5fe47563/3fe85b880fab421ca4f29156fdec85bd [2020-10-26 03:25:59,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 03:25:59,457 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-26 03:25:59,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 03:25:59,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 03:25:59,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 03:25:59,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:25:59" (1/1) ... [2020-10-26 03:25:59,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68dc1b0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:25:59, skipping insertion in model container [2020-10-26 03:25:59,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:25:59" (1/1) ... [2020-10-26 03:25:59,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 03:25:59,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 03:25:59,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:25:59,960 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-10-26 03:25:59,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 03:26:00,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:26:00,073 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 03:26:00,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:26:00,252 INFO L208 MainTranslator]: Completed translation [2020-10-26 03:26:00,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:26:00 WrapperNode [2020-10-26 03:26:00,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 03:26:00,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 03:26:00,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 03:26:00,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 03:26:00,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:26:00" (1/1) ... [2020-10-26 03:26:00,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:26:00" (1/1) ... [2020-10-26 03:26:00,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:26:00" (1/1) ... [2020-10-26 03:26:00,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:26:00" (1/1) ... [2020-10-26 03:26:00,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:26:00" (1/1) ... [2020-10-26 03:26:00,357 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:26:00" (1/1) ... [2020-10-26 03:26:00,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:26:00" (1/1) ... [2020-10-26 03:26:00,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 03:26:00,371 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 03:26:00,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 03:26:00,372 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 03:26:00,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:26:00" (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 [2020-10-26 03:26:00,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 03:26:00,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 03:26:00,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-26 03:26:00,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-26 03:26:00,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-26 03:26:00,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-26 03:26:00,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-26 03:26:00,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-26 03:26:00,462 INFO L138 BoogieDeclarations]: Found implementation of procedure lis [2020-10-26 03:26:00,462 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 03:26:00,463 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-26 03:26:00,463 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-26 03:26:00,464 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-26 03:26:00,464 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-26 03:26:00,464 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-26 03:26:00,464 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-26 03:26:00,464 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-26 03:26:00,464 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-26 03:26:00,464 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-26 03:26:00,465 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-26 03:26:00,465 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-26 03:26:00,465 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-26 03:26:00,465 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-26 03:26:00,465 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-26 03:26:00,465 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-26 03:26:00,465 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-26 03:26:00,465 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-26 03:26:00,466 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-26 03:26:00,466 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-26 03:26:00,466 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-26 03:26:00,466 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-26 03:26:00,466 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-26 03:26:00,466 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-26 03:26:00,466 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-26 03:26:00,466 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-26 03:26:00,467 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-26 03:26:00,467 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-26 03:26:00,467 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-26 03:26:00,467 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-26 03:26:00,467 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-26 03:26:00,467 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-26 03:26:00,467 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-26 03:26:00,468 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-26 03:26:00,468 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-26 03:26:00,468 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-26 03:26:00,468 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-26 03:26:00,469 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-26 03:26:00,469 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-26 03:26:00,469 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-26 03:26:00,469 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-26 03:26:00,469 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-26 03:26:00,469 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-26 03:26:00,470 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-26 03:26:00,471 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-26 03:26:00,471 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-26 03:26:00,471 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-26 03:26:00,471 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-26 03:26:00,471 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-26 03:26:00,472 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-26 03:26:00,472 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-26 03:26:00,472 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-26 03:26:00,472 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-26 03:26:00,472 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-26 03:26:00,473 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-26 03:26:00,473 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-26 03:26:00,473 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-26 03:26:00,475 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-26 03:26:00,475 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-26 03:26:00,475 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-26 03:26:00,475 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-26 03:26:00,475 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-26 03:26:00,476 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-26 03:26:00,476 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-26 03:26:00,476 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 03:26:00,476 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-26 03:26:00,476 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-26 03:26:00,476 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-26 03:26:00,476 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 03:26:00,476 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-26 03:26:00,477 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-26 03:26:00,478 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-26 03:26:00,478 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-26 03:26:00,478 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-26 03:26:00,478 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-26 03:26:00,478 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-26 03:26:00,478 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-26 03:26:00,478 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-26 03:26:00,478 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-26 03:26:00,479 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-26 03:26:00,479 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-26 03:26:00,479 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-26 03:26:00,479 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-26 03:26:00,479 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-26 03:26:00,479 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-26 03:26:00,479 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-26 03:26:00,479 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-26 03:26:00,480 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-26 03:26:00,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-26 03:26:00,480 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-26 03:26:00,480 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-26 03:26:00,480 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-26 03:26:00,480 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-26 03:26:00,480 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-26 03:26:00,480 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-26 03:26:00,480 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-26 03:26:00,481 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-26 03:26:00,481 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-26 03:26:00,481 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-26 03:26:00,481 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-26 03:26:00,481 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-26 03:26:00,482 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-26 03:26:00,483 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-26 03:26:00,483 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-26 03:26:00,483 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-26 03:26:00,483 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-26 03:26:00,483 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-26 03:26:00,483 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-26 03:26:00,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 03:26:00,484 INFO L130 BoogieDeclarations]: Found specification of procedure lis [2020-10-26 03:26:00,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-26 03:26:00,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-26 03:26:00,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-26 03:26:00,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 03:26:00,484 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 03:26:00,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 03:26:00,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 03:26:00,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-26 03:26:01,473 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 03:26:01,474 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-26 03:26:01,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:26:01 BoogieIcfgContainer [2020-10-26 03:26:01,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 03:26:01,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 03:26:01,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 03:26:01,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 03:26:01,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 03:25:59" (1/3) ... [2020-10-26 03:26:01,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad3c223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 03:26:01, skipping insertion in model container [2020-10-26 03:26:01,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:26:00" (2/3) ... [2020-10-26 03:26:01,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad3c223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 03:26:01, skipping insertion in model container [2020-10-26 03:26:01,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:26:01" (3/3) ... [2020-10-26 03:26:01,500 INFO L111 eAbstractionObserver]: Analyzing ICFG lis_unsafe.i [2020-10-26 03:26:01,516 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 03:26:01,523 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 29 error locations. [2020-10-26 03:26:01,540 INFO L253 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2020-10-26 03:26:01,578 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 03:26:01,578 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-26 03:26:01,578 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 03:26:01,578 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 03:26:01,578 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 03:26:01,578 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 03:26:01,578 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 03:26:01,579 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 03:26:01,603 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2020-10-26 03:26:01,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-26 03:26:01,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:26:01,621 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:26:01,622 INFO L429 AbstractCegarLoop]: === Iteration 1 === [lisErr12REQUIRES_VIOLATION, lisErr11REQUIRES_VIOLATION, lisErr10REQUIRES_VIOLATION, lisErr23ASSERT_VIOLATIONMEMORY_FREE, lisErr9REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr26ASSERT_VIOLATIONMEMORY_FREE, lisErr17REQUIRES_VIOLATION, lisErr25ASSERT_VIOLATIONMEMORY_FREE, lisErr16REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, lisErr1REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr22ASSERT_VIOLATIONMEMORY_FREE, lisErr27ASSERT_VIOLATIONMEMORY_FREE, lisErr20REQUIRES_VIOLATION, lisErr24ASSERT_VIOLATIONMEMORY_FREE, lisErr19REQUIRES_VIOLATION, lisErr18REQUIRES_VIOLATION, lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-26 03:26:01,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:26:01,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1899922095, now seen corresponding path program 1 times [2020-10-26 03:26:01,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-26 03:26:01,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [719926707] [2020-10-26 03:26:01,649 INFO L95 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 [2020-10-26 03:26:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:26:01,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-26 03:26:01,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 03:26:01,959 INFO L350 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-10-26 03:26:01,960 INFO L384 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 1 case distinctions, treesize of input 9 treesize of output 11 [2020-10-26 03:26:01,961 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 03:26:01,972 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:26:01,977 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-26 03:26:01,977 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2020-10-26 03:26:01,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:26:01,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-26 03:26:02,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:26:02,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [719926707] [2020-10-26 03:26:02,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:26:02,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-26 03:26:02,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759463214] [2020-10-26 03:26:02,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 03:26:02,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-26 03:26:02,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 03:26:02,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 03:26:02,054 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 3 states. [2020-10-26 03:26:02,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:26:02,317 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2020-10-26 03:26:02,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 03:26:02,319 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-26 03:26:02,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:26:02,331 INFO L225 Difference]: With dead ends: 71 [2020-10-26 03:26:02,331 INFO L226 Difference]: Without dead ends: 68 [2020-10-26 03:26:02,333 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 03:26:02,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-26 03:26:02,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-10-26 03:26:02,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-26 03:26:02,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 75 transitions. [2020-10-26 03:26:02,381 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 75 transitions. Word has length 11 [2020-10-26 03:26:02,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:26:02,382 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 75 transitions. [2020-10-26 03:26:02,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 03:26:02,382 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 75 transitions. [2020-10-26 03:26:02,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-26 03:26:02,383 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:26:02,383 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:26:02,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-26 03:26:02,605 INFO L429 AbstractCegarLoop]: === Iteration 2 === [lisErr12REQUIRES_VIOLATION, lisErr11REQUIRES_VIOLATION, lisErr10REQUIRES_VIOLATION, lisErr23ASSERT_VIOLATIONMEMORY_FREE, lisErr9REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr26ASSERT_VIOLATIONMEMORY_FREE, lisErr17REQUIRES_VIOLATION, lisErr25ASSERT_VIOLATIONMEMORY_FREE, lisErr16REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, lisErr1REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr22ASSERT_VIOLATIONMEMORY_FREE, lisErr27ASSERT_VIOLATIONMEMORY_FREE, lisErr20REQUIRES_VIOLATION, lisErr24ASSERT_VIOLATIONMEMORY_FREE, lisErr19REQUIRES_VIOLATION, lisErr18REQUIRES_VIOLATION, lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-26 03:26:02,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:26:02,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1899922094, now seen corresponding path program 1 times [2020-10-26 03:26:02,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-26 03:26:02,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [568132310] [2020-10-26 03:26:02,608 INFO L95 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 [2020-10-26 03:26:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:26:02,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-26 03:26:02,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 03:26:02,802 INFO L441 ElimStorePlain]: Different costs {0=[|v_#length_31|], 1=[|v_#valid_47|]} [2020-10-26 03:26:02,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-26 03:26:02,814 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2020-10-26 03:26:02,815 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 03:26:02,836 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:26:02,851 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-10-26 03:26:02,854 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-26 03:26:02,870 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:26:02,881 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-26 03:26:02,882 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:24, output treesize:21 [2020-10-26 03:26:02,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:26:02,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-26 03:26:03,112 INFO L441 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2020-10-26 03:26:03,121 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-10-26 03:26:03,122 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 03:26:03,133 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:26:03,135 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-26 03:26:03,136 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-26 03:26:03,146 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:26:03,148 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-26 03:26:03,149 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:25, output treesize:5 [2020-10-26 03:26:03,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:26:03,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [568132310] [2020-10-26 03:26:03,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:26:03,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-10-26 03:26:03,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056155403] [2020-10-26 03:26:03,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 03:26:03,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-26 03:26:03,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 03:26:03,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-26 03:26:03,209 INFO L87 Difference]: Start difference. First operand 68 states and 75 transitions. Second operand 8 states. [2020-10-26 03:26:04,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:26:04,757 INFO L93 Difference]: Finished difference Result 166 states and 186 transitions. [2020-10-26 03:26:04,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 03:26:04,758 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-10-26 03:26:04,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:26:04,762 INFO L225 Difference]: With dead ends: 166 [2020-10-26 03:26:04,762 INFO L226 Difference]: Without dead ends: 166 [2020-10-26 03:26:04,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-26 03:26:04,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-26 03:26:04,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 127. [2020-10-26 03:26:04,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-26 03:26:04,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 177 transitions. [2020-10-26 03:26:04,784 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 177 transitions. Word has length 11 [2020-10-26 03:26:04,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:26:04,785 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 177 transitions. [2020-10-26 03:26:04,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 03:26:04,785 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 177 transitions. [2020-10-26 03:26:04,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-26 03:26:04,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:26:04,786 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:26:05,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-26 03:26:05,003 INFO L429 AbstractCegarLoop]: === Iteration 3 === [lisErr12REQUIRES_VIOLATION, lisErr11REQUIRES_VIOLATION, lisErr10REQUIRES_VIOLATION, lisErr23ASSERT_VIOLATIONMEMORY_FREE, lisErr9REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr26ASSERT_VIOLATIONMEMORY_FREE, lisErr17REQUIRES_VIOLATION, lisErr25ASSERT_VIOLATIONMEMORY_FREE, lisErr16REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, lisErr1REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr22ASSERT_VIOLATIONMEMORY_FREE, lisErr27ASSERT_VIOLATIONMEMORY_FREE, lisErr20REQUIRES_VIOLATION, lisErr24ASSERT_VIOLATIONMEMORY_FREE, lisErr19REQUIRES_VIOLATION, lisErr18REQUIRES_VIOLATION, lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-26 03:26:05,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:26:05,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1898075052, now seen corresponding path program 1 times [2020-10-26 03:26:05,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-26 03:26:05,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1128273713] [2020-10-26 03:26:05,006 INFO L95 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 [2020-10-26 03:26:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 03:26:05,170 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 03:26:05,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 03:26:05,198 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 03:26:05,223 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-26 03:26:05,223 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 03:26:05,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-26 03:26:05,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 03:26:05 BoogieIcfgContainer [2020-10-26 03:26:05,452 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 03:26:05,453 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 03:26:05,453 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 03:26:05,454 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 03:26:05,454 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:26:01" (3/4) ... [2020-10-26 03:26:05,457 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-26 03:26:05,527 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 03:26:05,528 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 03:26:05,530 INFO L168 Benchmark]: Toolchain (without parser) took 6077.76 ms. Allocated memory was 48.2 MB in the beginning and 88.1 MB in the end (delta: 39.8 MB). Free memory was 23.9 MB in the beginning and 39.3 MB in the end (delta: -15.4 MB). Peak memory consumption was 25.7 MB. Max. memory is 16.1 GB. [2020-10-26 03:26:05,531 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 48.2 MB. Free memory is still 31.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 03:26:05,532 INFO L168 Benchmark]: CACSL2BoogieTranslator took 795.94 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 23.3 MB in the beginning and 33.3 MB in the end (delta: -10.0 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. [2020-10-26 03:26:05,533 INFO L168 Benchmark]: Boogie Preprocessor took 114.98 ms. Allocated memory is still 60.8 MB. Free memory was 33.3 MB in the beginning and 30.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 03:26:05,534 INFO L168 Benchmark]: RCFGBuilder took 1107.60 ms. Allocated memory is still 60.8 MB. Free memory was 30.3 MB in the beginning and 29.3 MB in the end (delta: 999.1 kB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. [2020-10-26 03:26:05,538 INFO L168 Benchmark]: TraceAbstraction took 3971.85 ms. Allocated memory was 60.8 MB in the beginning and 88.1 MB in the end (delta: 27.3 MB). Free memory was 29.0 MB in the beginning and 40.6 MB in the end (delta: -11.6 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2020-10-26 03:26:05,542 INFO L168 Benchmark]: Witness Printer took 74.63 ms. Allocated memory is still 88.1 MB. Free memory was 40.6 MB in the beginning and 39.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 03:26:05,547 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 48.2 MB. Free memory is still 31.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 795.94 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 23.3 MB in the beginning and 33.3 MB in the end (delta: -10.0 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 114.98 ms. Allocated memory is still 60.8 MB. Free memory was 33.3 MB in the beginning and 30.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1107.60 ms. Allocated memory is still 60.8 MB. Free memory was 30.3 MB in the beginning and 29.3 MB in the end (delta: 999.1 kB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3971.85 ms. Allocated memory was 60.8 MB in the beginning and 88.1 MB in the end (delta: 27.3 MB). Free memory was 29.0 MB in the beginning and 40.6 MB in the end (delta: -11.6 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * Witness Printer took 74.63 ms. Allocated memory is still 88.1 MB. Free memory was 40.6 MB in the beginning and 39.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 518]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L531] int *a; [L532] int N = __VERIFIER_nondet_int(); [L533] COND FALSE !(N < 1) VAL [N=1073741824] [L535] CALL lis(a, N) VAL [\old(N)=1073741824, a={7:8}] [L514] int *best, *prev, i, j, max = 0; [L515] best = (int*) malloc(sizeof(int) * N) [L516] prev = (int*) malloc(sizeof(int) * N) [L517] i = 0 VAL [\old(N)=1073741824, a={7:8}, a={7:8}, best={1:0}, i=0, malloc(sizeof(int) * N)={2:0}, malloc(sizeof(int) * N)={1:0}, max=0, N=1073741824, prev={2:0}] [L517] COND TRUE i < N VAL [\old(N)=1073741824, a={7:8}, a={7:8}, best={1:0}, i=0, malloc(sizeof(int) * N)={2:0}, malloc(sizeof(int) * N)={1:0}, max=0, N=1073741824, prev={2:0}] [L518] best[i] = 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 100 locations, 29 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 123 SDtfs, 191 SDslu, 269 SDs, 0 SdLazy, 186 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred 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, 2 MinimizatonAttempts, 39 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 2 QuantifiedInterpolants, 1600 SizeOfPredicates, 10 NumberOfNonLiveVariables, 116 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...