./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test13_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3a877d22 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/ldv-memsafety/memleaks_test13_2.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 35bea36500fd584379ee75f7219d833c6e835c74616f49a2cc8d9d16168e8f4f --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 14:03:28,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 14:03:28,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 14:03:28,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 14:03:28,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 14:03:28,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 14:03:28,895 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 14:03:28,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 14:03:28,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 14:03:28,898 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 14:03:28,899 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 14:03:28,900 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 14:03:28,900 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 14:03:28,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 14:03:28,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 14:03:28,902 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 14:03:28,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 14:03:28,904 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 14:03:28,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 14:03:28,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 14:03:28,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 14:03:28,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 14:03:28,909 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 14:03:28,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 14:03:28,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 14:03:28,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 14:03:28,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 14:03:28,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 14:03:28,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 14:03:28,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 14:03:28,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 14:03:28,914 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 14:03:28,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 14:03:28,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 14:03:28,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 14:03:28,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 14:03:28,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 14:03:28,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 14:03:28,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 14:03:28,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 14:03:28,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 14:03:28,919 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-15 14:03:28,931 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 14:03:28,932 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 14:03:28,932 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 14:03:28,932 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 14:03:28,933 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 14:03:28,933 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 14:03:28,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 14:03:28,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 14:03:28,933 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 14:03:28,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 14:03:28,934 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 14:03:28,934 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 14:03:28,934 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 14:03:28,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 14:03:28,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 14:03:28,934 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 14:03:28,934 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 14:03:28,935 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-15 14:03:28,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 14:03:28,935 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 14:03:28,935 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 14:03:28,935 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 14:03:28,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 14:03:28,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 14:03:28,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 14:03:28,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:03:28,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 14:03:28,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 14:03:28,936 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 14:03:28,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 14:03:28,937 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 14:03:28,937 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35bea36500fd584379ee75f7219d833c6e835c74616f49a2cc8d9d16168e8f4f [2021-12-15 14:03:29,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 14:03:29,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 14:03:29,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 14:03:29,145 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 14:03:29,145 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 14:03:29,146 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test13_2.i [2021-12-15 14:03:29,197 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ac4f1826/7194e0d6584849caab4b087b709b0711/FLAGa9ae95711 [2021-12-15 14:03:29,606 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 14:03:29,606 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test13_2.i [2021-12-15 14:03:29,623 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ac4f1826/7194e0d6584849caab4b087b709b0711/FLAGa9ae95711 [2021-12-15 14:03:29,914 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ac4f1826/7194e0d6584849caab4b087b709b0711 [2021-12-15 14:03:29,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 14:03:29,918 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 14:03:29,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 14:03:29,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 14:03:29,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 14:03:29,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:03:29" (1/1) ... [2021-12-15 14:03:29,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c2263d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:29, skipping insertion in model container [2021-12-15 14:03:29,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:03:29" (1/1) ... [2021-12-15 14:03:29,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 14:03:29,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 14:03:30,294 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:03:30,308 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) [2021-12-15 14:03:30,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7dba7e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:30, skipping insertion in model container [2021-12-15 14:03:30,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 14:03:30,309 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-12-15 14:03:30,311 INFO L158 Benchmark]: Toolchain (without parser) took 392.15ms. Allocated memory is still 123.7MB. Free memory was 85.9MB in the beginning and 94.6MB in the end (delta: -8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 14:03:30,312 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 123.7MB. Free memory was 97.2MB in the beginning and 97.1MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:03:30,313 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.77ms. Allocated memory is still 123.7MB. Free memory was 85.6MB in the beginning and 94.6MB in the end (delta: -8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 14:03:30,315 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 123.7MB. Free memory was 97.2MB in the beginning and 97.1MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.77ms. Allocated memory is still 123.7MB. Free memory was 85.6MB in the beginning and 94.6MB in the end (delta: -8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/ldv-memsafety/memleaks_test13_2.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 35bea36500fd584379ee75f7219d833c6e835c74616f49a2cc8d9d16168e8f4f --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 14:03:32,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 14:03:32,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 14:03:32,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 14:03:32,164 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 14:03:32,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 14:03:32,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 14:03:32,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 14:03:32,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 14:03:32,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 14:03:32,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 14:03:32,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 14:03:32,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 14:03:32,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 14:03:32,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 14:03:32,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 14:03:32,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 14:03:32,200 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 14:03:32,203 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 14:03:32,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 14:03:32,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 14:03:32,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 14:03:32,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 14:03:32,211 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 14:03:32,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 14:03:32,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 14:03:32,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 14:03:32,217 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 14:03:32,218 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 14:03:32,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 14:03:32,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 14:03:32,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 14:03:32,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 14:03:32,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 14:03:32,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 14:03:32,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 14:03:32,222 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 14:03:32,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 14:03:32,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 14:03:32,223 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 14:03:32,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 14:03:32,228 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-12-15 14:03:32,250 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 14:03:32,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 14:03:32,251 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 14:03:32,251 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 14:03:32,252 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 14:03:32,252 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 14:03:32,253 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 14:03:32,254 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 14:03:32,254 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 14:03:32,254 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 14:03:32,255 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 14:03:32,255 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 14:03:32,255 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 14:03:32,255 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 14:03:32,255 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 14:03:32,255 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 14:03:32,256 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 14:03:32,256 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-15 14:03:32,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 14:03:32,256 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 14:03:32,256 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 14:03:32,256 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 14:03:32,256 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 14:03:32,257 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 14:03:32,257 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 14:03:32,257 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 14:03:32,257 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 14:03:32,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:03:32,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 14:03:32,258 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 14:03:32,258 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 14:03:32,258 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 14:03:32,258 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 14:03:32,258 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 14:03:32,258 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35bea36500fd584379ee75f7219d833c6e835c74616f49a2cc8d9d16168e8f4f [2021-12-15 14:03:32,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 14:03:32,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 14:03:32,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 14:03:32,558 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 14:03:32,559 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 14:03:32,560 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test13_2.i [2021-12-15 14:03:32,607 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c0c0081f/fad938904e1447b1aae14b6ec9d68d74/FLAG1cc65f267 [2021-12-15 14:03:33,204 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 14:03:33,204 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test13_2.i [2021-12-15 14:03:33,218 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c0c0081f/fad938904e1447b1aae14b6ec9d68d74/FLAG1cc65f267 [2021-12-15 14:03:33,602 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c0c0081f/fad938904e1447b1aae14b6ec9d68d74 [2021-12-15 14:03:33,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 14:03:33,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 14:03:33,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 14:03:33,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 14:03:33,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 14:03:33,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:03:33" (1/1) ... [2021-12-15 14:03:33,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67086823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:33, skipping insertion in model container [2021-12-15 14:03:33,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:03:33" (1/1) ... [2021-12-15 14:03:33,618 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 14:03:33,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 14:03:33,951 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:03:33,965 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 14:03:33,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 14:03:34,027 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:03:34,042 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 14:03:34,088 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:03:34,120 INFO L208 MainTranslator]: Completed translation [2021-12-15 14:03:34,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:34 WrapperNode [2021-12-15 14:03:34,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 14:03:34,122 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 14:03:34,122 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 14:03:34,122 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 14:03:34,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:34" (1/1) ... [2021-12-15 14:03:34,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:34" (1/1) ... [2021-12-15 14:03:34,178 INFO L137 Inliner]: procedures = 167, calls = 79, calls flagged for inlining = 21, calls inlined = 6, statements flattened = 53 [2021-12-15 14:03:34,180 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 14:03:34,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 14:03:34,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 14:03:34,181 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 14:03:34,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:34" (1/1) ... [2021-12-15 14:03:34,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:34" (1/1) ... [2021-12-15 14:03:34,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:34" (1/1) ... [2021-12-15 14:03:34,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:34" (1/1) ... [2021-12-15 14:03:34,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:34" (1/1) ... [2021-12-15 14:03:34,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:34" (1/1) ... [2021-12-15 14:03:34,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:34" (1/1) ... [2021-12-15 14:03:34,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 14:03:34,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 14:03:34,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 14:03:34,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 14:03:34,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:34" (1/1) ... [2021-12-15 14:03:34,230 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:03:34,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 14:03:34,250 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 14:03:34,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 14:03:34,279 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-12-15 14:03:34,280 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-12-15 14:03:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-12-15 14:03:34,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-12-15 14:03:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-15 14:03:34,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-15 14:03:34,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-12-15 14:03:34,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-12-15 14:03:34,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 14:03:34,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 14:03:34,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 14:03:34,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 14:03:34,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 14:03:34,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-12-15 14:03:34,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-12-15 14:03:34,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 14:03:34,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 14:03:34,363 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 14:03:34,364 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 14:03:34,650 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 14:03:34,654 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 14:03:34,655 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 14:03:34,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 02:03:34 BoogieIcfgContainer [2021-12-15 14:03:34,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 14:03:34,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 14:03:34,657 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 14:03:34,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 14:03:34,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 02:03:33" (1/3) ... [2021-12-15 14:03:34,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13346b0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 02:03:34, skipping insertion in model container [2021-12-15 14:03:34,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:34" (2/3) ... [2021-12-15 14:03:34,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13346b0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 02:03:34, skipping insertion in model container [2021-12-15 14:03:34,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 02:03:34" (3/3) ... [2021-12-15 14:03:34,661 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test13_2.i [2021-12-15 14:03:34,667 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 14:03:34,668 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-12-15 14:03:34,701 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 14:03:34,710 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 14:03:34,710 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-12-15 14:03:34,725 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 42 states have (on average 1.7857142857142858) internal successors, (75), 72 states have internal predecessors, (75), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-15 14:03:34,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-15 14:03:34,730 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:03:34,731 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 14:03:34,731 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_list_addErr0REQUIRES_VIOLATION === [ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 25 more)] === [2021-12-15 14:03:34,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:03:34,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1285123929, now seen corresponding path program 1 times [2021-12-15 14:03:34,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 14:03:34,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [35823458] [2021-12-15 14:03:34,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:03:34,743 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 14:03:34,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 14:03:34,745 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 14:03:34,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 14:03:34,803 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-15 14:03:34,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 14:03:34,989 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 14:03:34,993 INFO L158 Benchmark]: Toolchain (without parser) took 1385.69ms. Allocated memory was 50.3MB in the beginning and 69.2MB in the end (delta: 18.9MB). Free memory was 26.6MB in the beginning and 29.9MB in the end (delta: -3.4MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2021-12-15 14:03:34,995 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 50.3MB. Free memory was 32.6MB in the beginning and 32.6MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:03:35,001 INFO L158 Benchmark]: CACSL2BoogieTranslator took 512.40ms. Allocated memory was 50.3MB in the beginning and 69.2MB in the end (delta: 18.9MB). Free memory was 26.3MB in the beginning and 39.9MB in the end (delta: -13.6MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2021-12-15 14:03:35,001 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.31ms. Allocated memory is still 69.2MB. Free memory was 39.9MB in the beginning and 37.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 14:03:35,001 INFO L158 Benchmark]: Boogie Preprocessor took 43.29ms. Allocated memory is still 69.2MB. Free memory was 37.5MB in the beginning and 35.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 14:03:35,002 INFO L158 Benchmark]: RCFGBuilder took 431.16ms. Allocated memory is still 69.2MB. Free memory was 35.8MB in the beginning and 39.3MB in the end (delta: -3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 14:03:35,002 INFO L158 Benchmark]: TraceAbstraction took 334.76ms. Allocated memory is still 69.2MB. Free memory was 38.8MB in the beginning and 29.9MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 14:03:35,007 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 50.3MB. Free memory was 32.6MB in the beginning and 32.6MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 512.40ms. Allocated memory was 50.3MB in the beginning and 69.2MB in the end (delta: 18.9MB). Free memory was 26.3MB in the beginning and 39.9MB in the end (delta: -13.6MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.31ms. Allocated memory is still 69.2MB. Free memory was 39.9MB in the beginning and 37.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.29ms. Allocated memory is still 69.2MB. Free memory was 37.5MB in the beginning and 35.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 431.16ms. Allocated memory is still 69.2MB. Free memory was 35.8MB in the beginning and 39.3MB in the end (delta: -3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 334.76ms. Allocated memory is still 69.2MB. Free memory was 38.8MB in the beginning and 29.9MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 14:03:35,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable