./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 20ed64ec 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_test16.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 fa0c2a1ec4e9d87c009cc3e8aa4349638d4af33a ................................................................................................................................... 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/ldv-memsafety/memleaks_test16.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 fa0c2a1ec4e9d87c009cc3e8aa4349638d4af33a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:10:26,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:10:26,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:10:26,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:10:26,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:10:26,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:10:26,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:10:26,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:10:26,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:10:26,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:10:26,984 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:10:26,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:10:26,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:10:26,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:10:26,990 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:10:26,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:10:26,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:10:26,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:10:26,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:10:26,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:10:27,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:10:27,001 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:10:27,002 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:10:27,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:10:27,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:10:27,006 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:10:27,007 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:10:27,008 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:10:27,008 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:10:27,008 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:10:27,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:10:27,009 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:10:27,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:10:27,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:10:27,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:10:27,013 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:10:27,013 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:10:27,013 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:10:27,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:10:27,014 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:10:27,015 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:10:27,015 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 06:10:27,047 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:10:27,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:10:27,048 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:10:27,049 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:10:27,050 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:10:27,050 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:10:27,050 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:10:27,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:10:27,051 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:10:27,051 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:10:27,051 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:10:27,051 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:10:27,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:10:27,051 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:10:27,052 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:10:27,052 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:10:27,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:10:27,052 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:10:27,052 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:10:27,052 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:10:27,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:10:27,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:10:27,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:10:27,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:10:27,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:10:27,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:10:27,053 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 06:10:27,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 06:10:27,053 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:10:27,053 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa0c2a1ec4e9d87c009cc3e8aa4349638d4af33a [2021-08-27 06:10:27,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:10:27,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:10:27,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:10:27,351 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:10:27,352 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:10:27,353 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2021-08-27 06:10:27,406 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/078cfe9b3/c26bc11cb3c547968be2757e55974506/FLAG5f97f2d7e [2021-08-27 06:10:27,802 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:10:27,804 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2021-08-27 06:10:27,818 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/078cfe9b3/c26bc11cb3c547968be2757e55974506/FLAG5f97f2d7e [2021-08-27 06:10:28,180 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/078cfe9b3/c26bc11cb3c547968be2757e55974506 [2021-08-27 06:10:28,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:10:28,183 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:10:28,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:10:28,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:10:28,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:10:28,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:10:28" (1/1) ... [2021-08-27 06:10:28,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18ba295b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:10:28, skipping insertion in model container [2021-08-27 06:10:28,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:10:28" (1/1) ... [2021-08-27 06:10:28,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:10:28,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:10:28,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:10:28,477 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) [2021-08-27 06:10:28,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@378de4ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:10:28, skipping insertion in model container [2021-08-27 06:10:28,478 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:10:28,478 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-27 06:10:28,479 INFO L168 Benchmark]: Toolchain (without parser) took 295.72 ms. Allocated memory is still 65.0 MB. Free memory was 44.3 MB in the beginning and 45.7 MB in the end (delta: -1.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:10:28,480 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 65.0 MB. Free memory is still 47.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:10:28,480 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.17 ms. Allocated memory is still 65.0 MB. Free memory was 44.0 MB in the beginning and 46.0 MB in the end (delta: -1.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:10:28,481 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 65.0 MB. Free memory is still 47.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 294.17 ms. Allocated memory is still 65.0 MB. Free memory was 44.0 MB in the beginning and 46.0 MB in the end (delta: -1.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:10:29,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:10:29,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:10:29,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:10:29,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:10:29,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:10:29,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:10:29,838 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:10:29,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:10:29,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:10:29,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:10:29,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:10:29,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:10:29,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:10:29,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:10:29,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:10:29,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:10:29,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:10:29,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:10:29,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:10:29,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:10:29,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:10:29,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:10:29,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:10:29,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:10:29,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:10:29,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:10:29,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:10:29,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:10:29,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:10:29,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:10:29,863 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:10:29,864 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:10:29,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:10:29,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:10:29,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:10:29,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:10:29,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:10:29,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:10:29,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:10:29,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:10:29,868 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 06:10:29,891 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:10:29,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:10:29,893 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:10:29,893 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:10:29,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:10:29,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:10:29,896 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:10:29,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:10:29,896 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:10:29,897 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:10:29,897 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:10:29,897 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:10:29,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:10:29,898 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:10:29,898 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:10:29,898 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:10:29,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:10:29,898 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:10:29,898 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 06:10:29,899 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 06:10:29,899 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:10:29,899 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:10:29,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:10:29,899 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:10:29,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:10:29,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:10:29,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:10:29,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:10:29,900 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 06:10:29,900 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 06:10:29,900 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:10:29,900 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 06:10:29,901 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa0c2a1ec4e9d87c009cc3e8aa4349638d4af33a [2021-08-27 06:10:30,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:10:30,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:10:30,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:10:30,180 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:10:30,181 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:10:30,182 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2021-08-27 06:10:30,233 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f47c7fc8/fd62aafc33f84831a441cb17f3067fe9/FLAGf3dcf8d68 [2021-08-27 06:10:30,713 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:10:30,717 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2021-08-27 06:10:30,735 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f47c7fc8/fd62aafc33f84831a441cb17f3067fe9/FLAGf3dcf8d68 [2021-08-27 06:10:31,063 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f47c7fc8/fd62aafc33f84831a441cb17f3067fe9 [2021-08-27 06:10:31,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:10:31,065 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:10:31,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:10:31,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:10:31,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:10:31,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:10:31" (1/1) ... [2021-08-27 06:10:31,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b01d968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:10:31, skipping insertion in model container [2021-08-27 06:10:31,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:10:31" (1/1) ... [2021-08-27 06:10:31,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:10:31,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:10:31,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:10:31,395 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-27 06:10:31,405 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:10:31,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:10:31,441 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 06:10:31,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:10:31,506 INFO L208 MainTranslator]: Completed translation [2021-08-27 06:10:31,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:10:31 WrapperNode [2021-08-27 06:10:31,507 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:10:31,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 06:10:31,508 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 06:10:31,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 06:10:31,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:10:31" (1/1) ... [2021-08-27 06:10:31,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:10:31" (1/1) ... [2021-08-27 06:10:31,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:10:31" (1/1) ... [2021-08-27 06:10:31,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:10:31" (1/1) ... [2021-08-27 06:10:31,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:10:31" (1/1) ... [2021-08-27 06:10:31,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:10:31" (1/1) ... [2021-08-27 06:10:31,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:10:31" (1/1) ... [2021-08-27 06:10:31,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 06:10:31,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 06:10:31,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 06:10:31,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 06:10:31,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:10:31" (1/1) ... [2021-08-27 06:10:31,605 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:10:31,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:10:31,622 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) [2021-08-27 06:10:31,641 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 [2021-08-27 06:10:31,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 06:10:31,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 06:10:31,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:10:31,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:10:31,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 06:10:31,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 06:10:31,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 06:10:31,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 06:10:31,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 06:10:31,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-27 06:10:31,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-27 06:10:31,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-27 06:10:31,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-27 06:10:31,674 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:10:31,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-27 06:10:31,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-27 06:10:31,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-27 06:10:31,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-27 06:10:31,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-27 06:10:31,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-27 06:10:31,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-27 06:10:31,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-27 06:10:31,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-27 06:10:31,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-27 06:10:31,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-27 06:10:31,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-27 06:10:31,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-27 06:10:31,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-27 06:10:31,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-27 06:10:31,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-27 06:10:31,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-27 06:10:31,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-27 06:10:31,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-27 06:10:31,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-27 06:10:31,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-27 06:10:31,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-27 06:10:31,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-27 06:10:31,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-27 06:10:31,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-27 06:10:31,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-27 06:10:31,677 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-27 06:10:31,677 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-27 06:10:31,677 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_16 [2021-08-27 06:10:31,678 INFO L138 BoogieDeclarations]: Found implementation of procedure free_16 [2021-08-27 06:10:31,678 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-27 06:10:31,678 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 06:10:31,679 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 06:10:31,679 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-27 06:10:31,679 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-27 06:10:31,679 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 06:10:31,679 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 06:10:31,679 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 06:10:31,680 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 06:10:31,680 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 06:10:31,680 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 06:10:31,680 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 06:10:31,680 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 06:10:31,680 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 06:10:31,681 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 06:10:31,681 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 06:10:31,681 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 06:10:31,681 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 06:10:31,682 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 06:10:31,682 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 06:10:31,682 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 06:10:31,683 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 06:10:31,683 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 06:10:31,683 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 06:10:31,683 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 06:10:31,683 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 06:10:31,683 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 06:10:31,683 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 06:10:31,684 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 06:10:31,684 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 06:10:31,684 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 06:10:31,684 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 06:10:31,684 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 06:10:31,684 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 06:10:31,686 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 06:10:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 06:10:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 06:10:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 06:10:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 06:10:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 06:10:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 06:10:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 06:10:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 06:10:31,688 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 06:10:31,688 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 06:10:31,688 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 06:10:31,688 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 06:10:31,688 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 06:10:31,688 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 06:10:31,688 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 06:10:31,688 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 06:10:31,688 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 06:10:31,689 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 06:10:31,689 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 06:10:31,689 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 06:10:31,689 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 06:10:31,689 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 06:10:31,689 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 06:10:31,689 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 06:10:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 06:10:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 06:10:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 06:10:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 06:10:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 06:10:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 06:10:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 06:10:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 06:10:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 06:10:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 06:10:31,691 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 06:10:31,691 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 06:10:31,691 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 06:10:31,691 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 06:10:31,691 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 06:10:31,691 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 06:10:31,692 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 06:10:31,692 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 06:10:31,692 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 06:10:31,692 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 06:10:31,693 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 06:10:31,694 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 06:10:31,695 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 06:10:31,695 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 06:10:31,695 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 06:10:31,696 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 06:10:31,696 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 06:10:31,696 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 06:10:31,696 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 06:10:31,697 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 06:10:31,702 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 06:10:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 06:10:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 06:10:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 06:10:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 06:10:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 06:10:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 06:10:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 06:10:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 06:10:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 06:10:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 06:10:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 06:10:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 06:10:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 06:10:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 06:10:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 06:10:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 06:10:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 06:10:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 06:10:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 06:10:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 06:10:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 06:10:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 06:10:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-27 06:10:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 06:10:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-27 06:10:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-27 06:10:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 06:10:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 06:10:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-27 06:10:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 06:10:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-27 06:10:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-27 06:10:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:10:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 06:10:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-27 06:10:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-27 06:10:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-27 06:10:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 06:10:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-27 06:10:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-27 06:10:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-27 06:10:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-27 06:10:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-27 06:10:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-27 06:10:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 06:10:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-27 06:10:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-27 06:10:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-27 06:10:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-27 06:10:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-27 06:10:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-27 06:10:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-27 06:10:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-27 06:10:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-27 06:10:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:10:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-27 06:10:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-27 06:10:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-27 06:10:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-27 06:10:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-27 06:10:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-27 06:10:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-27 06:10:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-27 06:10:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-27 06:10:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-27 06:10:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-27 06:10:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 06:10:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-27 06:10:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-27 06:10:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_16 [2021-08-27 06:10:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure free_16 [2021-08-27 06:10:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-27 06:10:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 06:10:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 06:10:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 06:10:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 06:10:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 06:10:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:10:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-27 06:10:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-27 06:10:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-27 06:10:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-27 06:10:32,198 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:10:32,455 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:10:32,671 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 06:10:32,675 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-27 06:10:32,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:10:32 BoogieIcfgContainer [2021-08-27 06:10:32,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 06:10:32,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 06:10:32,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 06:10:32,682 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 06:10:32,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:10:31" (1/3) ... [2021-08-27 06:10:32,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78dbd5dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:10:32, skipping insertion in model container [2021-08-27 06:10:32,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:10:31" (2/3) ... [2021-08-27 06:10:32,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78dbd5dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:10:32, skipping insertion in model container [2021-08-27 06:10:32,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:10:32" (3/3) ... [2021-08-27 06:10:32,684 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test16.i [2021-08-27 06:10:32,687 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 06:10:32,687 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-08-27 06:10:32,713 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 06:10:32,717 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, mConcurrency=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 [2021-08-27 06:10:32,717 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-08-27 06:10:32,727 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 60 states have (on average 1.4833333333333334) internal successors, (89), 81 states have internal predecessors, (89), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-08-27 06:10:32,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:10:32,731 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:10:32,732 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:10:32,732 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting free_16Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:10:32,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:10:32,736 INFO L82 PathProgramCache]: Analyzing trace with hash 997159282, now seen corresponding path program 1 times [2021-08-27 06:10:32,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:10:32,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1435741272] [2021-08-27 06:10:32,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:10:32,744 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:10:32,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:10:32,746 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) [2021-08-27 06:10:32,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-27 06:10:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:10:32,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:10:32,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:10:33,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:10:33,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:10:33,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:10:33,155 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:10:33,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1435741272] [2021-08-27 06:10:33,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1435741272] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:10:33,156 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:10:33,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-08-27 06:10:33,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477330688] [2021-08-27 06:10:33,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 06:10:33,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:10:33,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 06:10:33,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-27 06:10:33,185 INFO L87 Difference]: Start difference. First operand has 107 states, 60 states have (on average 1.4833333333333334) internal successors, (89), 81 states have internal predecessors, (89), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:10:33,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:10:33,282 INFO L93 Difference]: Finished difference Result 49 states and 51 transitions. [2021-08-27 06:10:33,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 06:10:33,283 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-08-27 06:10:33,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:10:33,289 INFO L225 Difference]: With dead ends: 49 [2021-08-27 06:10:33,289 INFO L226 Difference]: Without dead ends: 46 [2021-08-27 06:10:33,290 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 46.5ms TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:10:33,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-08-27 06:10:33,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2021-08-27 06:10:33,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 24 states have (on average 1.25) internal successors, (30), 28 states have internal predecessors, (30), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2021-08-27 06:10:33,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2021-08-27 06:10:33,316 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 17 [2021-08-27 06:10:33,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:10:33,317 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2021-08-27 06:10:33,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:10:33,317 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2021-08-27 06:10:33,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-27 06:10:33,318 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:10:33,318 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:10:33,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-27 06:10:33,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:10:33,531 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:10:33,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:10:33,531 INFO L82 PathProgramCache]: Analyzing trace with hash 965683329, now seen corresponding path program 1 times [2021-08-27 06:10:33,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:10:33,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [790000774] [2021-08-27 06:10:33,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:10:33,532 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:10:33,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:10:33,533 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:10:33,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-27 06:10:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:10:33,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 06:10:33,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:10:33,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:10:33,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:10:33,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:10:33,894 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:10:33,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [790000774] [2021-08-27 06:10:33,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [790000774] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:10:33,895 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:10:33,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-27 06:10:33,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118757375] [2021-08-27 06:10:33,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 06:10:33,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:10:33,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 06:10:33,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:10:33,897 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:10:33,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:10:33,934 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2021-08-27 06:10:33,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 06:10:33,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 21 [2021-08-27 06:10:33,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:10:33,936 INFO L225 Difference]: With dead ends: 54 [2021-08-27 06:10:33,936 INFO L226 Difference]: Without dead ends: 43 [2021-08-27 06:10:33,937 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:10:33,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-08-27 06:10:33,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-08-27 06:10:33,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 29 states have internal predecessors, (29), 7 states have call successors, (7), 6 states have call predecessors, (7), 8 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2021-08-27 06:10:33,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2021-08-27 06:10:33,943 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 21 [2021-08-27 06:10:33,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:10:33,944 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2021-08-27 06:10:33,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:10:33,944 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2021-08-27 06:10:33,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-27 06:10:33,945 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:10:33,945 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:10:33,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-27 06:10:34,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:10:34,154 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting free_16Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:10:34,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:10:34,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1103285257, now seen corresponding path program 1 times [2021-08-27 06:10:34,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:10:34,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637981287] [2021-08-27 06:10:34,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:10:34,155 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:10:34,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:10:34,156 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:10:34,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-27 06:10:34,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:10:34,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 06:10:34,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:10:34,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:10:34,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:10:34,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:10:34,562 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:10:34,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637981287] [2021-08-27 06:10:34,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637981287] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:10:34,562 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:10:34,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-08-27 06:10:34,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556304877] [2021-08-27 06:10:34,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 06:10:34,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:10:34,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 06:10:34,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-08-27 06:10:34,564 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:10:34,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:10:34,610 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2021-08-27 06:10:34,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 06:10:34,614 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2021-08-27 06:10:34,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:10:34,615 INFO L225 Difference]: With dead ends: 42 [2021-08-27 06:10:34,615 INFO L226 Difference]: Without dead ends: 42 [2021-08-27 06:10:34,615 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 43.9ms TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:10:34,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-08-27 06:10:34,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-08-27 06:10:34,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 28 states have internal predecessors, (28), 7 states have call successors, (7), 6 states have call predecessors, (7), 8 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2021-08-27 06:10:34,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2021-08-27 06:10:34,619 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 23 [2021-08-27 06:10:34,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:10:34,619 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2021-08-27 06:10:34,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:10:34,619 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2021-08-27 06:10:34,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-27 06:10:34,620 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:10:34,620 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:10:34,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-27 06:10:34,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:10:34,821 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting free_16Err1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:10:34,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:10:34,821 INFO L82 PathProgramCache]: Analyzing trace with hash 157895800, now seen corresponding path program 1 times [2021-08-27 06:10:34,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:10:34,821 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487099514] [2021-08-27 06:10:34,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:10:34,822 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:10:34,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:10:34,822 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:10:34,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-27 06:10:34,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:10:34,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:10:34,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:10:35,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:10:35,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:10:35,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:10:35,449 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:10:35,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1487099514] [2021-08-27 06:10:35,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1487099514] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:10:35,449 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:10:35,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 16 [2021-08-27 06:10:35,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613147851] [2021-08-27 06:10:35,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-08-27 06:10:35,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:10:35,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-27 06:10:35,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2021-08-27 06:10:35,450 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 17 states, 14 states have (on average 2.142857142857143) internal successors, (30), 11 states have internal predecessors, (30), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 06:10:35,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:10:35,712 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2021-08-27 06:10:35,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-27 06:10:35,713 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 2.142857142857143) internal successors, (30), 11 states have internal predecessors, (30), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) Word has length 24 [2021-08-27 06:10:35,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:10:35,714 INFO L225 Difference]: With dead ends: 53 [2021-08-27 06:10:35,714 INFO L226 Difference]: Without dead ends: 51 [2021-08-27 06:10:35,714 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 252.3ms TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-08-27 06:10:35,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-08-27 06:10:35,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 46. [2021-08-27 06:10:35,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 31 states have internal predecessors, (33), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-08-27 06:10:35,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 48 transitions. [2021-08-27 06:10:35,718 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 48 transitions. Word has length 24 [2021-08-27 06:10:35,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:10:35,719 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 48 transitions. [2021-08-27 06:10:35,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 2.142857142857143) internal successors, (30), 11 states have internal predecessors, (30), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 06:10:35,719 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2021-08-27 06:10:35,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-27 06:10:35,720 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:10:35,720 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:10:35,726 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-27 06:10:35,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:10:35,928 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting free_16Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:10:35,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:10:35,928 INFO L82 PathProgramCache]: Analyzing trace with hash 599802905, now seen corresponding path program 1 times [2021-08-27 06:10:35,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:10:35,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156922359] [2021-08-27 06:10:35,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:10:35,929 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:10:35,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:10:35,930 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:10:35,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-27 06:10:36,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:10:36,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:10:36,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:10:36,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 06:10:36,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:10:36,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:10:36,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:10:36,380 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:10:36,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156922359] [2021-08-27 06:10:36,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1156922359] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:10:36,381 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:10:36,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-08-27 06:10:36,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541900898] [2021-08-27 06:10:36,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 06:10:36,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:10:36,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 06:10:36,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-08-27 06:10:36,382 INFO L87 Difference]: Start difference. First operand 46 states and 48 transitions. Second operand has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:10:36,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:10:36,478 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2021-08-27 06:10:36,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 06:10:36,479 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2021-08-27 06:10:36,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:10:36,480 INFO L225 Difference]: With dead ends: 50 [2021-08-27 06:10:36,480 INFO L226 Difference]: Without dead ends: 50 [2021-08-27 06:10:36,480 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 7 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 74.3ms TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:10:36,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-08-27 06:10:36,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2021-08-27 06:10:36,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 29 states have (on average 1.103448275862069) internal successors, (32), 31 states have internal predecessors, (32), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-08-27 06:10:36,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2021-08-27 06:10:36,483 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 25 [2021-08-27 06:10:36,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:10:36,484 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2021-08-27 06:10:36,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:10:36,484 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2021-08-27 06:10:36,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-27 06:10:36,484 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:10:36,485 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:10:36,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-27 06:10:36,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:10:36,693 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting free_16Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:10:36,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:10:36,694 INFO L82 PathProgramCache]: Analyzing trace with hash 306399898, now seen corresponding path program 1 times [2021-08-27 06:10:36,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:10:36,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282828831] [2021-08-27 06:10:36,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:10:36,694 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:10:36,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:10:36,695 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:10:36,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-27 06:10:36,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:10:36,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 06:10:36,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:10:36,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:10:36,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:10:37,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:10:37,107 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:10:37,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1282828831] [2021-08-27 06:10:37,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1282828831] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:10:37,107 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:10:37,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-08-27 06:10:37,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832125993] [2021-08-27 06:10:37,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 06:10:37,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:10:37,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 06:10:37,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-08-27 06:10:37,108 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:10:37,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:10:37,149 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2021-08-27 06:10:37,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 06:10:37,149 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2021-08-27 06:10:37,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:10:37,150 INFO L225 Difference]: With dead ends: 47 [2021-08-27 06:10:37,150 INFO L226 Difference]: Without dead ends: 47 [2021-08-27 06:10:37,150 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 42.7ms TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:10:37,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-08-27 06:10:37,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2021-08-27 06:10:37,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 30 states have internal predecessors, (31), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2021-08-27 06:10:37,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2021-08-27 06:10:37,153 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 25 [2021-08-27 06:10:37,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:10:37,154 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2021-08-27 06:10:37,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:10:37,154 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2021-08-27 06:10:37,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-08-27 06:10:37,154 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:10:37,155 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:10:37,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-27 06:10:37,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:10:37,367 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:10:37,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:10:37,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1123950726, now seen corresponding path program 1 times [2021-08-27 06:10:37,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:10:37,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [141845846] [2021-08-27 06:10:37,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:10:37,368 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:10:37,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:10:37,369 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:10:37,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-27 06:10:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:10:37,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:10:37,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:10:37,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:10:37,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:10:37,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:10:37,858 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:10:37,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [141845846] [2021-08-27 06:10:37,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [141845846] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:10:37,858 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:10:37,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-08-27 06:10:37,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609657042] [2021-08-27 06:10:37,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 06:10:37,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:10:37,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 06:10:37,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-08-27 06:10:37,859 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 06:10:37,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:10:37,916 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2021-08-27 06:10:37,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 06:10:37,917 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 27 [2021-08-27 06:10:37,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:10:37,918 INFO L225 Difference]: With dead ends: 47 [2021-08-27 06:10:37,918 INFO L226 Difference]: Without dead ends: 45 [2021-08-27 06:10:37,918 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 46.9ms TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:10:37,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-08-27 06:10:37,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 31. [2021-08-27 06:10:37,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-08-27 06:10:37,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2021-08-27 06:10:37,920 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 27 [2021-08-27 06:10:37,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:10:37,921 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2021-08-27 06:10:37,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 06:10:37,921 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2021-08-27 06:10:37,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-08-27 06:10:37,921 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:10:37,922 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:10:37,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-08-27 06:10:38,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:10:38,125 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:10:38,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:10:38,125 INFO L82 PathProgramCache]: Analyzing trace with hash 2141245867, now seen corresponding path program 1 times [2021-08-27 06:10:38,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:10:38,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1145668046] [2021-08-27 06:10:38,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:10:38,126 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:10:38,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:10:38,127 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:10:38,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-08-27 06:10:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:10:38,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-27 06:10:38,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:10:38,365 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-27 06:10:38,365 INFO L388 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 1 case distinctions, treesize of input 9 treesize of output 15 [2021-08-27 06:10:42,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:10:42,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:10:47,044 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:10:47,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1145668046] [2021-08-27 06:10:47,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:10:47,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [136241122] [2021-08-27 06:10:47,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:10:47,045 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-27 06:10:47,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-27 06:10:47,056 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-27 06:10:47,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-08-27 06:10:47,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:10:47,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 23 conjunts are in the unsatisfiable core [2021-08-27 06:10:47,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:10:47,452 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-27 06:10:47,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 27 [2021-08-27 06:10:47,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:10:47,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:10:51,947 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:10:51,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190783734] [2021-08-27 06:10:51,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:10:51,948 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 06:10:51,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:10:51,953 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 06:10:51,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-08-27 06:10:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:10:52,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 20 conjunts are in the unsatisfiable core [2021-08-27 06:10:52,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:10:54,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:10:54,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:10:59,054 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:10:59,054 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:10:59,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-27 06:10:59,054 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-27 06:10:59,054 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-27 06:10:59,057 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 06:10:59,058 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-08-27 06:10:59,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-08-27 06:10:59,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-08-27 06:10:59,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-08-27 06:10:59,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-08-27 06:10:59,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-08-27 06:10:59,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-08-27 06:10:59,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-08-27 06:10:59,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-08-27 06:10:59,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-08-27 06:10:59,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-08-27 06:10:59,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-08-27 06:10:59,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:10:59,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:10:59,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-08-27 06:10:59,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-08-27 06:10:59,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-08-27 06:10:59,060 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-08-27 06:10:59,060 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-08-27 06:10:59,060 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-08-27 06:10:59,060 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:10:59,060 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:10:59,060 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:10:59,060 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:10:59,060 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:10:59,060 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:10:59,060 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-08-27 06:10:59,060 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-08-27 06:10:59,060 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-08-27 06:10:59,060 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-08-27 06:10:59,060 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:10:59,060 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:10:59,060 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-08-27 06:10:59,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-08-27 06:10:59,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-08-27 06:10:59,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-08-27 06:10:59,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-08-27 06:10:59,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-08-27 06:10:59,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:10:59,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:10:59,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-08-27 06:10:59,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-08-27 06:10:59,062 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:10:59,062 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:10:59,062 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:10:59,062 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:10:59,062 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:10:59,062 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:10:59,062 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-08-27 06:10:59,063 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-08-27 06:10:59,063 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-08-27 06:10:59,063 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-08-27 06:10:59,063 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-08-27 06:10:59,063 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-08-27 06:10:59,063 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-08-27 06:10:59,063 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-08-27 06:10:59,063 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:10:59,063 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:10:59,063 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:10:59,063 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:10:59,063 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:10:59,064 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:10:59,064 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-08-27 06:10:59,064 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-08-27 06:10:59,064 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:10:59,064 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:10:59,064 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:10:59,064 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:10:59,064 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-08-27 06:10:59,065 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-08-27 06:10:59,065 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_16Err0ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:10:59,065 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_16Err1ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:10:59,065 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_16Err2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:10:59,082 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-08-27 06:10:59,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-08-27 06:10:59,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-08-27 06:10:59,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2021-08-27 06:10:59,673 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 06:10:59,675 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-08-27 06:10:59,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:10:59 BoogieIcfgContainer [2021-08-27 06:10:59,684 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 06:10:59,684 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 06:10:59,684 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 06:10:59,684 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 06:10:59,685 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:10:32" (3/4) ... [2021-08-27 06:10:59,686 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 06:10:59,687 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 06:10:59,687 INFO L168 Benchmark]: Toolchain (without parser) took 28621.63 ms. Allocated memory was 54.5 MB in the beginning and 174.1 MB in the end (delta: 119.5 MB). Free memory was 30.5 MB in the beginning and 84.1 MB in the end (delta: -53.6 MB). Peak memory consumption was 65.7 MB. Max. memory is 16.1 GB. [2021-08-27 06:10:59,687 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 54.5 MB. Free memory was 36.6 MB in the beginning and 36.6 MB in the end (delta: 37.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:10:59,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 434.38 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.3 MB in the beginning and 35.0 MB in the end (delta: -4.7 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:10:59,688 INFO L168 Benchmark]: Boogie Preprocessor took 86.48 ms. Allocated memory is still 67.1 MB. Free memory was 35.0 MB in the beginning and 45.3 MB in the end (delta: -10.3 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2021-08-27 06:10:59,688 INFO L168 Benchmark]: RCFGBuilder took 1084.07 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 45.3 MB in the beginning and 52.3 MB in the end (delta: -7.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2021-08-27 06:10:59,689 INFO L168 Benchmark]: TraceAbstraction took 27003.71 ms. Allocated memory was 81.8 MB in the beginning and 174.1 MB in the end (delta: 92.3 MB). Free memory was 51.8 MB in the beginning and 85.0 MB in the end (delta: -33.2 MB). Peak memory consumption was 58.9 MB. Max. memory is 16.1 GB. [2021-08-27 06:10:59,689 INFO L168 Benchmark]: Witness Printer took 2.54 ms. Allocated memory is still 174.1 MB. Free memory is still 84.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:10:59,690 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 54.5 MB. Free memory was 36.6 MB in the beginning and 36.6 MB in the end (delta: 37.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 434.38 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.3 MB in the beginning and 35.0 MB in the end (delta: -4.7 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 86.48 ms. Allocated memory is still 67.1 MB. Free memory was 35.0 MB in the beginning and 45.3 MB in the end (delta: -10.3 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1084.07 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 45.3 MB in the beginning and 52.3 MB in the end (delta: -7.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 27003.71 ms. Allocated memory was 81.8 MB in the beginning and 174.1 MB in the end (delta: 92.3 MB). Free memory was 51.8 MB in the beginning and 85.0 MB in the end (delta: -33.2 MB). Peak memory consumption was 58.9 MB. Max. memory is 16.1 GB. * Witness Printer took 2.54 ms. Allocated memory is still 174.1 MB. Free memory is still 84.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 777]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: unable to decide satisfiability of path constraint, overapproximation of memtrack at line 777. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L778] CALL entry_point() [L773] int condition = __VERIFIER_nondet_int(); [L774] CALL, EXPR alloc_16(condition) [L761] COND TRUE \read(condition) [L762] CALL, EXPR ldv_malloc(sizeof(struct A16)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L762] RET, EXPR ldv_malloc(sizeof(struct A16)) [L762] struct A16 *p = (struct A16 *)ldv_malloc(sizeof(struct A16)); [L763] return p; [L774] RET, EXPR alloc_16(condition) [L774] struct A16 *p = alloc_16(condition); [L775] CALL free_16(p, condition) [L768] COND TRUE \read(condition) [L769] free(p) [L769] free(p) [L769] free(p) [L775] RET free_16(p, condition) [L778] RET entry_point() - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 769]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 769]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 769]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 347 locations, 74 error locations. Started 1 CEGAR loops. OverallTime: 26960.1ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 11.3ms, AutomataDifference: 685.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 217 SDtfs, 135 SDslu, 1061 SDs, 0 SdLazy, 468 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 369.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 327 GetRequests, 260 SyntacticMatches, 7 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 508.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=0, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 39.1ms AutomataMinimizationTime, 7 MinimizatonAttempts, 29 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 55.3ms SsaConstructionTime, 119.6ms SatisfiabilityAnalysisTime, 1931.5ms InterpolantComputationTime, 162 NumberOfCodeBlocks, 162 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 310 ConstructedInterpolants, 0 QuantifiedInterpolants, 978 SizeOfPredicates, 13 NumberOfNonLiveVariables, 577 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 could not prove your program: unable to determine feasibility of some traces [2021-08-27 06:10:59,724 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...