./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test18.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_test18.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 c99147d7fc15b82aae203d59dfd3004b20a3ac70 ................................................................................................................................... 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_test18.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 c99147d7fc15b82aae203d59dfd3004b20a3ac70 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 06:14:08,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:14:08,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:14:08,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:14:08,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:14:08,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:14:08,997 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:14:09,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:14:09,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:14:09,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:14:09,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:14:09,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:14:09,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:14:09,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:14:09,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:14:09,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:14:09,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:14:09,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:14:09,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:14:09,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:14:09,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:14:09,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:14:09,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:14:09,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:14:09,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:14:09,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:14:09,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:14:09,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:14:09,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:14:09,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:14:09,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:14:09,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:14:09,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:14:09,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:14:09,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:14:09,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:14:09,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:14:09,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:14:09,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:14:09,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:14:09,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:14:09,042 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 06:14:09,067 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:14:09,067 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:14:09,068 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:14:09,069 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:14:09,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:14:09,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:14:09,071 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:14:09,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:14:09,071 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:14:09,071 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:14:09,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:14:09,072 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:14:09,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:14:09,072 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:14:09,072 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:14:09,072 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:14:09,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:14:09,073 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:14:09,073 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:14:09,073 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:14:09,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:14:09,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:14:09,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:14:09,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:14:09,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:14:09,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:14:09,074 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 06:14:09,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 06:14:09,074 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:14:09,074 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c99147d7fc15b82aae203d59dfd3004b20a3ac70 [2021-08-27 06:14:09,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:14:09,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:14:09,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:14:09,348 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:14:09,349 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:14:09,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-08-27 06:14:09,400 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdb441455/56ccf32feeba40458dc3a8fcbcfd13b7/FLAGec860c6aa [2021-08-27 06:14:09,828 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:14:09,828 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-08-27 06:14:09,846 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdb441455/56ccf32feeba40458dc3a8fcbcfd13b7/FLAGec860c6aa [2021-08-27 06:14:10,214 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdb441455/56ccf32feeba40458dc3a8fcbcfd13b7 [2021-08-27 06:14:10,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:14:10,217 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:14:10,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:14:10,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:14:10,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:14:10,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:14:10" (1/1) ... [2021-08-27 06:14:10,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44272958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:10, skipping insertion in model container [2021-08-27 06:14:10,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:14:10" (1/1) ... [2021-08-27 06:14:10,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:14:10,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:14:10,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:14:10,603 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 06:14:10,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@55e57b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:10, skipping insertion in model container [2021-08-27 06:14:10,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:14:10,604 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-27 06:14:10,606 INFO L168 Benchmark]: Toolchain (without parser) took 387.94 ms. Allocated memory is still 56.6 MB. Free memory was 34.1 MB in the beginning and 36.0 MB in the end (delta: -1.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:14:10,607 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 56.6 MB. Free memory was 38.8 MB in the beginning and 38.8 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:14:10,608 INFO L168 Benchmark]: CACSL2BoogieTranslator took 386.40 ms. Allocated memory is still 56.6 MB. Free memory was 34.0 MB in the beginning and 36.0 MB in the end (delta: -2.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:14:10,609 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 56.6 MB. Free memory was 38.8 MB in the beginning and 38.8 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 386.40 ms. Allocated memory is still 56.6 MB. Free memory was 34.0 MB in the beginning and 36.0 MB in the end (delta: -2.0 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 06:14:11,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:14:11,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:14:12,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:14:12,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:14:12,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:14:12,025 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:14:12,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:14:12,030 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:14:12,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:14:12,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:14:12,039 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:14:12,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:14:12,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:14:12,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:14:12,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:14:12,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:14:12,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:14:12,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:14:12,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:14:12,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:14:12,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:14:12,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:14:12,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:14:12,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:14:12,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:14:12,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:14:12,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:14:12,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:14:12,062 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:14:12,062 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:14:12,063 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:14:12,064 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:14:12,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:14:12,066 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:14:12,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:14:12,067 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:14:12,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:14:12,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:14:12,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:14:12,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:14:12,072 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 06:14:12,095 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:14:12,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:14:12,096 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:14:12,096 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:14:12,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:14:12,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:14:12,098 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:14:12,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:14:12,098 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:14:12,099 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:14:12,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:14:12,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:14:12,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:14:12,100 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:14:12,100 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:14:12,100 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:14:12,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:14:12,100 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:14:12,104 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 06:14:12,104 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 06:14:12,105 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:14:12,105 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:14:12,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:14:12,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:14:12,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:14:12,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:14:12,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:14:12,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:14:12,106 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 06:14:12,106 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 06:14:12,106 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:14:12,106 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 06:14:12,107 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c99147d7fc15b82aae203d59dfd3004b20a3ac70 [2021-08-27 06:14:12,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:14:12,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:14:12,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:14:12,373 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:14:12,373 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:14:12,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-08-27 06:14:12,422 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db896e8f1/726f2b8b1f4f45c7b5f3d6c3660f8df8/FLAG7edefa50c [2021-08-27 06:14:12,792 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:14:12,794 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-08-27 06:14:12,819 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db896e8f1/726f2b8b1f4f45c7b5f3d6c3660f8df8/FLAG7edefa50c [2021-08-27 06:14:13,168 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db896e8f1/726f2b8b1f4f45c7b5f3d6c3660f8df8 [2021-08-27 06:14:13,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:14:13,173 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:14:13,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:14:13,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:14:13,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:14:13,177 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:14:13" (1/1) ... [2021-08-27 06:14:13,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23818b07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:13, skipping insertion in model container [2021-08-27 06:14:13,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:14:13" (1/1) ... [2021-08-27 06:14:13,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:14:13,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:14:13,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:14:13,544 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-27 06:14:13,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:14:13,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:14:13,579 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 06:14:13,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:14:13,660 INFO L208 MainTranslator]: Completed translation [2021-08-27 06:14:13,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:13 WrapperNode [2021-08-27 06:14:13,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:14:13,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 06:14:13,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 06:14:13,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 06:14:13,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:13" (1/1) ... [2021-08-27 06:14:13,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:13" (1/1) ... [2021-08-27 06:14:13,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:13" (1/1) ... [2021-08-27 06:14:13,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:13" (1/1) ... [2021-08-27 06:14:13,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:13" (1/1) ... [2021-08-27 06:14:13,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:13" (1/1) ... [2021-08-27 06:14:13,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:13" (1/1) ... [2021-08-27 06:14:13,737 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 06:14:13,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 06:14:13,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 06:14:13,738 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 06:14:13,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:13" (1/1) ... [2021-08-27 06:14:13,742 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:14:13,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:14:13,758 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 06:14:13,760 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 06:14:13,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 06:14:13,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 06:14:13,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:14:13,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:14:13,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 06:14:13,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 06:14:13,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 06:14:13,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 06:14:13,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 06:14:13,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-27 06:14:13,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-27 06:14:13,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-27 06:14:13,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-27 06:14:13,785 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:14:13,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-27 06:14:13,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-27 06:14:13,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-27 06:14:13,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-27 06:14:13,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-27 06:14:13,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-27 06:14:13,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-27 06:14:13,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-27 06:14:13,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-27 06:14:13,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-27 06:14:13,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-27 06:14:13,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-27 06:14:13,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-27 06:14:13,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-27 06:14:13,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-27 06:14:13,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-27 06:14:13,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-27 06:14:13,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-27 06:14:13,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-27 06:14:13,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-27 06:14:13,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-27 06:14:13,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-27 06:14:13,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-27 06:14:13,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-27 06:14:13,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-27 06:14:13,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-27 06:14:13,788 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-27 06:14:13,789 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-27 06:14:13,789 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-27 06:14:13,789 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 06:14:13,789 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 06:14:13,789 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-27 06:14:13,789 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-27 06:14:13,789 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 06:14:13,789 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 06:14:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 06:14:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 06:14:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 06:14:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 06:14:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 06:14:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 06:14:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 06:14:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 06:14:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 06:14:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 06:14:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 06:14:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 06:14:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 06:14:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 06:14:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 06:14:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 06:14:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 06:14:13,792 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 06:14:13,792 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 06:14:13,792 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 06:14:13,792 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 06:14:13,792 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 06:14:13,792 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 06:14:13,792 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 06:14:13,792 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 06:14:13,792 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 06:14:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 06:14:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 06:14:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 06:14:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 06:14:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 06:14:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 06:14:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 06:14:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 06:14:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 06:14:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 06:14:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 06:14:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 06:14:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 06:14:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 06:14:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 06:14:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 06:14:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 06:14:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 06:14:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 06:14:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 06:14:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 06:14:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 06:14:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 06:14:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 06:14:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 06:14:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 06:14:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 06:14:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 06:14:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 06:14:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 06:14:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 06:14:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 06:14:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 06:14:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 06:14:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 06:14:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 06:14:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 06:14:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 06:14:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 06:14:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 06:14:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 06:14:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 06:14:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 06:14:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 06:14:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 06:14:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 06:14:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 06:14:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 06:14:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 06:14:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 06:14:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 06:14:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 06:14:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 06:14:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 06:14:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 06:14:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 06:14:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 06:14:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 06:14:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 06:14:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 06:14:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 06:14:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 06:14:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 06:14:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 06:14:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 06:14:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 06:14:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 06:14:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 06:14:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 06:14:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 06:14:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 06:14:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 06:14:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 06:14:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 06:14:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 06:14:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 06:14:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 06:14:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 06:14:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 06:14:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-27 06:14:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 06:14:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-27 06:14:13,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-27 06:14:13,802 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 06:14:13,802 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 06:14:13,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-27 06:14:13,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 06:14:13,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-27 06:14:13,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-27 06:14:13,802 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:14:13,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 06:14:13,802 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-27 06:14:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-27 06:14:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-27 06:14:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 06:14:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-27 06:14:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-27 06:14:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-27 06:14:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-27 06:14:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-27 06:14:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-27 06:14:13,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 06:14:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-27 06:14:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-27 06:14:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-27 06:14:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-27 06:14:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-27 06:14:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-27 06:14:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-27 06:14:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-27 06:14:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-27 06:14:13,804 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:14:13,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-27 06:14:13,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-27 06:14:13,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-27 06:14:13,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-27 06:14:13,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-27 06:14:13,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-27 06:14:13,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-27 06:14:13,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-27 06:14:13,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-27 06:14:13,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-27 06:14:13,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-27 06:14:13,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 06:14:13,806 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-27 06:14:13,806 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-27 06:14:13,806 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-27 06:14:13,806 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 06:14:13,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 06:14:13,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 06:14:13,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 06:14:13,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 06:14:13,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:14:13,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-27 06:14:13,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-27 06:14:13,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-27 06:14:13,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-27 06:14:14,225 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:14:14,475 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:14:14,681 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 06:14:14,682 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-08-27 06:14:14,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:14:14 BoogieIcfgContainer [2021-08-27 06:14:14,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 06:14:14,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 06:14:14,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 06:14:14,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 06:14:14,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:14:13" (1/3) ... [2021-08-27 06:14:14,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6efbc37f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:14:14, skipping insertion in model container [2021-08-27 06:14:14,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:14:13" (2/3) ... [2021-08-27 06:14:14,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6efbc37f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:14:14, skipping insertion in model container [2021-08-27 06:14:14,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:14:14" (3/3) ... [2021-08-27 06:14:14,689 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test18.i [2021-08-27 06:14:14,692 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 06:14:14,692 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 81 error locations. [2021-08-27 06:14:14,719 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 06:14:14,723 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 06:14:14,723 INFO L340 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2021-08-27 06:14:14,742 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 66 states have (on average 1.606060606060606) internal successors, (106), 94 states have internal predecessors, (106), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-08-27 06:14:14,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:14:14,750 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:14:14,751 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 06:14:14,751 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-08-27 06:14:14,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:14:14,755 INFO L82 PathProgramCache]: Analyzing trace with hash 917895108, now seen corresponding path program 1 times [2021-08-27 06:14:14,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:14:14,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257679241] [2021-08-27 06:14:14,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:14:14,764 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:14:14,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:14:14,781 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 06:14:14,826 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 06:14:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:14:14,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:14:14,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:14:15,073 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 06:14:15,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:14:15,149 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 06:14:15,150 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:14:15,150 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257679241] [2021-08-27 06:14:15,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257679241] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:14:15,151 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:14:15,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:14:15,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905791343] [2021-08-27 06:14:15,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:14:15,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:14:15,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:14:15,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:14:15,165 INFO L87 Difference]: Start difference. First operand has 117 states, 66 states have (on average 1.606060606060606) internal successors, (106), 94 states have internal predecessors, (106), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:14:15,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:14:15,273 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2021-08-27 06:14:15,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:14:15,275 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-08-27 06:14:15,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:14:15,280 INFO L225 Difference]: With dead ends: 78 [2021-08-27 06:14:15,280 INFO L226 Difference]: Without dead ends: 75 [2021-08-27 06:14:15,281 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.9ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:14:15,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-08-27 06:14:15,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 48. [2021-08-27 06:14:15,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 38 states have internal predecessors, (43), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-27 06:14:15,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2021-08-27 06:14:15,310 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 17 [2021-08-27 06:14:15,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:14:15,311 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2021-08-27 06:14:15,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:14:15,311 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2021-08-27 06:14:15,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:14:15,312 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:14:15,312 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 06:14:15,321 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 06:14:15,519 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 06:14:15,519 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 77 more)] === [2021-08-27 06:14:15,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:14:15,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1634261853, now seen corresponding path program 1 times [2021-08-27 06:14:15,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:14:15,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1285113038] [2021-08-27 06:14:15,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:14:15,520 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:14:15,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:14:15,521 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 06:14:15,522 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 06:14:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:14:15,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:14:15,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:14:15,760 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 06:14:15,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:14:15,864 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 06:14:15,864 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:14:15,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1285113038] [2021-08-27 06:14:15,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1285113038] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:14:15,865 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:14:15,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-27 06:14:15,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399884415] [2021-08-27 06:14:15,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 06:14:15,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:14:15,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 06:14:15,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:14:15,872 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:14:15,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:14:15,944 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2021-08-27 06:14:15,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 06:14:15,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2021-08-27 06:14:15,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:14:15,948 INFO L225 Difference]: With dead ends: 76 [2021-08-27 06:14:15,949 INFO L226 Difference]: Without dead ends: 73 [2021-08-27 06:14:15,949 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:14:15,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-08-27 06:14:15,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 44. [2021-08-27 06:14:15,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 25 states have (on average 1.56) internal successors, (39), 35 states have internal predecessors, (39), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-08-27 06:14:15,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2021-08-27 06:14:15,960 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 17 [2021-08-27 06:14:15,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:14:15,960 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2021-08-27 06:14:15,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:14:15,961 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2021-08-27 06:14:15,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-27 06:14:15,961 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:14:15,962 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:14:15,976 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 06:14:16,168 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 06:14:16,169 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-08-27 06:14:16,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:14:16,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1661450729, now seen corresponding path program 1 times [2021-08-27 06:14:16,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:14:16,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [433798227] [2021-08-27 06:14:16,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:14:16,170 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:14:16,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:14:16,171 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 06:14:16,173 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 06:14:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:14:16,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 06:14:16,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:14:16,383 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 06:14:16,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:14:16,443 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 06:14:16,443 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:14:16,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [433798227] [2021-08-27 06:14:16,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [433798227] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:14:16,444 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:14:16,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-27 06:14:16,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575632303] [2021-08-27 06:14:16,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 06:14:16,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:14:16,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 06:14:16,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-27 06:14:16,453 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-08-27 06:14:16,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:14:16,511 INFO L93 Difference]: Finished difference Result 93 states and 101 transitions. [2021-08-27 06:14:16,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:14:16,512 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 18 [2021-08-27 06:14:16,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:14:16,514 INFO L225 Difference]: With dead ends: 93 [2021-08-27 06:14:16,514 INFO L226 Difference]: Without dead ends: 93 [2021-08-27 06:14:16,514 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 23.0ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:14:16,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-08-27 06:14:16,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 51. [2021-08-27 06:14:16,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 41 states have internal predecessors, (48), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-08-27 06:14:16,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2021-08-27 06:14:16,523 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 18 [2021-08-27 06:14:16,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:14:16,523 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2021-08-27 06:14:16,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-08-27 06:14:16,524 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2021-08-27 06:14:16,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-27 06:14:16,525 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:14:16,525 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:14:16,531 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-08-27 06:14:16,731 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 06:14:16,731 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-08-27 06:14:16,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:14:16,732 INFO L82 PathProgramCache]: Analyzing trace with hash -2108901776, now seen corresponding path program 1 times [2021-08-27 06:14:16,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:14:16,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1973067164] [2021-08-27 06:14:16,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:14:16,732 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:14:16,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:14:16,733 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 06:14:16,739 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 06:14:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:14:16,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:14:16,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:14:16,950 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 06:14:17,058 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-08-27 06:14:17,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2021-08-27 06:14:17,098 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:14:17,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:14:17,287 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:14:17,288 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:14:17,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1973067164] [2021-08-27 06:14:17,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1973067164] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:14:17,288 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:14:17,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-08-27 06:14:17,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809655757] [2021-08-27 06:14:17,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 06:14:17,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:14:17,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 06:14:17,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-27 06:14:17,290 INFO L87 Difference]: Start difference. First operand 51 states and 59 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:14:17,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:14:17,705 INFO L93 Difference]: Finished difference Result 157 states and 185 transitions. [2021-08-27 06:14:17,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-27 06:14:17,705 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 23 [2021-08-27 06:14:17,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:14:17,706 INFO L225 Difference]: With dead ends: 157 [2021-08-27 06:14:17,706 INFO L226 Difference]: Without dead ends: 157 [2021-08-27 06:14:17,707 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 150.3ms TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-08-27 06:14:17,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-08-27 06:14:17,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 70. [2021-08-27 06:14:17,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 47 states have (on average 1.4893617021276595) internal successors, (70), 57 states have internal predecessors, (70), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) [2021-08-27 06:14:17,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 87 transitions. [2021-08-27 06:14:17,713 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 87 transitions. Word has length 23 [2021-08-27 06:14:17,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:14:17,714 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 87 transitions. [2021-08-27 06:14:17,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:14:17,714 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 87 transitions. [2021-08-27 06:14:17,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-27 06:14:17,714 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:14:17,715 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:14:17,723 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 06:14:17,921 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 06:14:17,921 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-08-27 06:14:17,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:14:17,922 INFO L82 PathProgramCache]: Analyzing trace with hash -2108901775, now seen corresponding path program 1 times [2021-08-27 06:14:17,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:14:17,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [253375159] [2021-08-27 06:14:17,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:14:17,922 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:14:17,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:14:17,923 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 06:14:17,923 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 06:14:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:14:18,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 18 conjunts are in the unsatisfiable core [2021-08-27 06:14:18,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:14:18,133 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 06:14:18,137 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 06:14:20,424 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 06:14:20,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-08-27 06:14:20,431 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-27 06:14:20,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2021-08-27 06:14:20,494 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:14:20,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:14:31,522 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_entry_point_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~array~0.base_BEFORE_CALL_4 (_ BitVec 32)) (|v_ldv_malloc_#res.base_32| (_ BitVec 32)) (v_entry_point_~array~0.offset_BEFORE_CALL_2 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_32|)))) (exists ((|v_ldv_malloc_#res.base_31| (_ BitVec 32))) (and (= (_ bv0 1) (bvneg (bvneg (select |c_old(#valid)| |v_ldv_malloc_#res.base_31|)))) (or (exists ((v_ldv_malloc_~size_28 (_ BitVec 32))) (not (bvule (bvadd (_ bv4 32) (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_entry_point_~array~0.offset_BEFORE_CALL_2) (select (store |c_old(#length)| |v_ldv_malloc_#res.base_31| v_ldv_malloc_~size_28) v_entry_point_~array~0.base_BEFORE_CALL_4)))) (not (let ((.cse0 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (bvule (bvadd .cse0 v_entry_point_~array~0.offset_BEFORE_CALL_2) (bvadd (_ bv4 32) .cse0 v_entry_point_~array~0.offset_BEFORE_CALL_2))))))) (and (forall ((ldv_malloc_~size (_ BitVec 32))) (bvule (bvadd (_ bv4 32) (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_entry_point_~array~0.offset_BEFORE_CALL_2) (select (store |c_#length| |v_ldv_malloc_#res.base_32| ldv_malloc_~size) v_entry_point_~array~0.base_BEFORE_CALL_4))) (let ((.cse1 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (bvule (bvadd .cse1 v_entry_point_~array~0.offset_BEFORE_CALL_2) (bvadd (_ bv4 32) .cse1 v_entry_point_~array~0.offset_BEFORE_CALL_2)))))) is different from false [2021-08-27 06:14:32,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2021-08-27 06:14:33,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2021-08-27 06:14:33,389 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-08-27 06:14:33,389 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:14:33,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [253375159] [2021-08-27 06:14:33,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [253375159] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:14:33,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:14:33,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2021-08-27 06:14:33,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893918644] [2021-08-27 06:14:33,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-08-27 06:14:33,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:14:33,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-08-27 06:14:33,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=292, Unknown=5, NotChecked=34, Total=380 [2021-08-27 06:14:33,391 INFO L87 Difference]: Start difference. First operand 70 states and 87 transitions. Second operand has 20 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 18 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-08-27 06:15:28,832 WARN L207 SmtUtils]: Spent 8.21 s on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-08-27 06:16:50,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:16:50,232 INFO L93 Difference]: Finished difference Result 316 states and 385 transitions. [2021-08-27 06:16:50,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-27 06:16:50,233 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 18 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 23 [2021-08-27 06:16:50,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:16:50,235 INFO L225 Difference]: With dead ends: 316 [2021-08-27 06:16:50,235 INFO L226 Difference]: Without dead ends: 316 [2021-08-27 06:16:50,235 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 52762.1ms TimeCoverageRelationStatistics Valid=246, Invalid=1227, Unknown=13, NotChecked=74, Total=1560 [2021-08-27 06:16:50,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-08-27 06:16:50,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 104. [2021-08-27 06:16:50,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 78 states have (on average 1.4743589743589745) internal successors, (115), 87 states have internal predecessors, (115), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (16), 11 states have call predecessors, (16), 9 states have call successors, (16) [2021-08-27 06:16:50,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 141 transitions. [2021-08-27 06:16:50,243 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 141 transitions. Word has length 23 [2021-08-27 06:16:50,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:16:50,244 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 141 transitions. [2021-08-27 06:16:50,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 18 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-08-27 06:16:50,244 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 141 transitions. [2021-08-27 06:16:50,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-27 06:16:50,245 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:16:50,245 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:16:50,255 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 06:16:50,451 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 06:16:50,452 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-08-27 06:16:50,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:16:50,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1680506895, now seen corresponding path program 1 times [2021-08-27 06:16:50,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:16:50,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1404066899] [2021-08-27 06:16:50,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:16:50,453 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:16:50,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:16:50,454 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 06:16:50,454 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 06:16:50,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:16:50,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:16:50,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:16:50,754 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:16:50,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:16:50,876 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:16:50,877 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:16:50,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1404066899] [2021-08-27 06:16:50,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1404066899] provided 1 perfect and 1 imperfect interpolant sequences [2021-08-27 06:16:50,877 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-27 06:16:50,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-08-27 06:16:50,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26098139] [2021-08-27 06:16:50,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:16:50,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:16:50,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:16:50,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:16:50,878 INFO L87 Difference]: Start difference. First operand 104 states and 141 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:16:50,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:16:50,924 INFO L93 Difference]: Finished difference Result 95 states and 127 transitions. [2021-08-27 06:16:50,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:16:50,925 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2021-08-27 06:16:50,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:16:50,926 INFO L225 Difference]: With dead ends: 95 [2021-08-27 06:16:50,926 INFO L226 Difference]: Without dead ends: 91 [2021-08-27 06:16:50,926 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.0ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:16:50,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-08-27 06:16:50,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2021-08-27 06:16:50,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 68 states have (on average 1.4852941176470589) internal successors, (101), 76 states have internal predecessors, (101), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (13), 9 states have call predecessors, (13), 8 states have call successors, (13) [2021-08-27 06:16:50,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 123 transitions. [2021-08-27 06:16:50,931 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 123 transitions. Word has length 23 [2021-08-27 06:16:50,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:16:50,932 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 123 transitions. [2021-08-27 06:16:50,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:16:50,932 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 123 transitions. [2021-08-27 06:16:50,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-27 06:16:50,932 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:16:50,933 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:16:50,941 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 06:16:51,138 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 06:16:51,138 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-08-27 06:16:51,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:16:51,138 INFO L82 PathProgramCache]: Analyzing trace with hash 569916636, now seen corresponding path program 1 times [2021-08-27 06:16:51,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:16:51,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [658235950] [2021-08-27 06:16:51,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:16:51,139 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:16:51,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:16:51,140 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 06:16:51,140 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 06:16:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:16:51,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:16:51,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:16:51,451 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:16:51,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:16:51,542 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:16:51,542 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:16:51,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [658235950] [2021-08-27 06:16:51,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [658235950] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:16:51,543 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:16:51,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:16:51,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948569775] [2021-08-27 06:16:51,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:16:51,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:16:51,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:16:51,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:16:51,544 INFO L87 Difference]: Start difference. First operand 91 states and 123 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:16:51,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:16:51,601 INFO L93 Difference]: Finished difference Result 126 states and 164 transitions. [2021-08-27 06:16:51,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 06:16:51,601 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2021-08-27 06:16:51,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:16:51,602 INFO L225 Difference]: With dead ends: 126 [2021-08-27 06:16:51,602 INFO L226 Difference]: Without dead ends: 126 [2021-08-27 06:16:51,603 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.7ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-27 06:16:51,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-08-27 06:16:51,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 93. [2021-08-27 06:16:51,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 70 states have (on average 1.4428571428571428) internal successors, (101), 77 states have internal predecessors, (101), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (13), 10 states have call predecessors, (13), 8 states have call successors, (13) [2021-08-27 06:16:51,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 123 transitions. [2021-08-27 06:16:51,606 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 123 transitions. Word has length 25 [2021-08-27 06:16:51,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:16:51,607 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 123 transitions. [2021-08-27 06:16:51,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:16:51,607 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 123 transitions. [2021-08-27 06:16:51,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-27 06:16:51,607 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:16:51,608 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:16:51,616 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 06:16:51,813 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 06:16:51,815 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-08-27 06:16:51,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:16:51,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1982240325, now seen corresponding path program 1 times [2021-08-27 06:16:51,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:16:51,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685570037] [2021-08-27 06:16:51,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:16:51,815 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:16:51,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:16:51,816 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 06:16:51,817 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 06:16:52,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:16:52,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 06:16:52,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:16:52,119 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-27 06:16:52,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:16:52,214 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-27 06:16:52,214 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:16:52,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685570037] [2021-08-27 06:16:52,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685570037] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:16:52,214 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:16:52,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-27 06:16:52,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212123624] [2021-08-27 06:16:52,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 06:16:52,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:16:52,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 06:16:52,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-27 06:16:52,215 INFO L87 Difference]: Start difference. First operand 93 states and 123 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-27 06:16:52,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:16:52,301 INFO L93 Difference]: Finished difference Result 91 states and 113 transitions. [2021-08-27 06:16:52,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:16:52,302 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 25 [2021-08-27 06:16:52,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:16:52,303 INFO L225 Difference]: With dead ends: 91 [2021-08-27 06:16:52,303 INFO L226 Difference]: Without dead ends: 91 [2021-08-27 06:16:52,303 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 36.6ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:16:52,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-08-27 06:16:52,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 85. [2021-08-27 06:16:52,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 62 states have (on average 1.3709677419354838) internal successors, (85), 69 states have internal predecessors, (85), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (13), 10 states have call predecessors, (13), 8 states have call successors, (13) [2021-08-27 06:16:52,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 107 transitions. [2021-08-27 06:16:52,308 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 107 transitions. Word has length 25 [2021-08-27 06:16:52,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:16:52,308 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 107 transitions. [2021-08-27 06:16:52,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-08-27 06:16:52,308 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 107 transitions. [2021-08-27 06:16:52,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-08-27 06:16:52,309 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:16:52,309 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 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 06:16:52,317 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 06:16:52,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:16:52,515 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-08-27 06:16:52,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:16:52,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1319909042, now seen corresponding path program 1 times [2021-08-27 06:16:52,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:16:52,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [266633044] [2021-08-27 06:16:52,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:16:52,516 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:16:52,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:16:52,517 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:16:52,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-08-27 06:16:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:16:52,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:16:52,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:16:53,086 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:16:53,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:16:53,253 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:16:53,253 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:16:53,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [266633044] [2021-08-27 06:16:53,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [266633044] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:16:53,254 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:16:53,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2021-08-27 06:16:53,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483430130] [2021-08-27 06:16:53,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 06:16:53,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:16:53,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 06:16:53,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:16:53,255 INFO L87 Difference]: Start difference. First operand 85 states and 107 transitions. Second operand has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-27 06:16:53,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:16:53,482 INFO L93 Difference]: Finished difference Result 84 states and 105 transitions. [2021-08-27 06:16:53,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 06:16:53,483 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 26 [2021-08-27 06:16:53,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:16:53,484 INFO L225 Difference]: With dead ends: 84 [2021-08-27 06:16:53,484 INFO L226 Difference]: Without dead ends: 84 [2021-08-27 06:16:53,485 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 169.0ms TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:16:53,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-08-27 06:16:53,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2021-08-27 06:16:53,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 62 states have (on average 1.3387096774193548) internal successors, (83), 68 states have internal predecessors, (83), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (13), 10 states have call predecessors, (13), 8 states have call successors, (13) [2021-08-27 06:16:53,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 105 transitions. [2021-08-27 06:16:53,489 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 105 transitions. Word has length 26 [2021-08-27 06:16:53,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:16:53,489 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 105 transitions. [2021-08-27 06:16:53,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-27 06:16:53,489 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 105 transitions. [2021-08-27 06:16:53,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-08-27 06:16:53,490 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:16:53,490 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 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 06:16:53,501 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-08-27 06:16:53,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:16:53,697 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-08-27 06:16:53,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:16:53,697 INFO L82 PathProgramCache]: Analyzing trace with hash -446583614, now seen corresponding path program 1 times [2021-08-27 06:16:53,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:16:53,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [470552695] [2021-08-27 06:16:53,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:16:53,698 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:16:53,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:16:53,699 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:16:53,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-08-27 06:16:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:16:53,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-27 06:16:53,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:16:54,222 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:16:54,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:16:58,399 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:16:58,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [470552695] [2021-08-27 06:16:58,400 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:16:58,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2086904289] [2021-08-27 06:16:58,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:16:58,400 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-27 06:16:58,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-27 06:16:58,401 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-27 06:16:58,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-08-27 06:16:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:16:58,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-27 06:16:58,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:16:58,790 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-27 06:16:58,790 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 25 treesize of output 28 [2021-08-27 06:17:03,216 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:17:03,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:17:07,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:17:07,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446722883] [2021-08-27 06:17:07,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:17:07,363 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 06:17:07,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:17:07,363 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 06:17:07,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-08-27 06:17:07,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:17:07,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-27 06:17:07,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:17:07,889 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:17:07,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:17:12,049 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:17:12,050 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:17:12,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-27 06:17:12,050 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-27 06:17:12,050 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-27 06:17:12,053 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 06:17:12,054 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-08-27 06:17:12,054 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-08-27 06:17:12,054 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-08-27 06:17:12,054 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-08-27 06:17:12,055 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-08-27 06:17:12,055 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-08-27 06:17:12,055 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-08-27 06:17:12,055 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-08-27 06:17:12,055 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-08-27 06:17:12,055 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-08-27 06:17:12,055 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-08-27 06:17:12,055 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-08-27 06:17:12,055 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:17:12,056 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:17:12,056 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-08-27 06:17:12,056 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-08-27 06:17:12,056 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-08-27 06:17:12,056 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-08-27 06:17:12,056 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-08-27 06:17:12,056 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-08-27 06:17:12,056 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:17:12,056 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:17:12,057 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:17:12,057 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:17:12,057 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:17:12,057 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:17:12,057 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-08-27 06:17:12,057 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-08-27 06:17:12,057 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-08-27 06:17:12,057 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-08-27 06:17:12,057 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:17:12,057 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:17:12,058 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-08-27 06:17:12,058 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-08-27 06:17:12,058 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-08-27 06:17:12,058 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-08-27 06:17:12,058 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-08-27 06:17:12,058 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-08-27 06:17:12,058 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:17:12,058 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:17:12,058 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-08-27 06:17:12,058 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-08-27 06:17:12,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:17:12,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:17:12,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:17:12,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:17:12,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:17:12,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:17:12,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-08-27 06:17:12,059 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-08-27 06:17:12,060 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-08-27 06:17:12,060 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-08-27 06:17:12,060 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-08-27 06:17:12,060 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-08-27 06:17:12,060 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-08-27 06:17:12,060 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-08-27 06:17:12,060 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:17:12,060 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:17:12,060 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:17:12,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:17:12,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:17:12,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:17:12,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-08-27 06:17:12,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-08-27 06:17:12,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:17:12,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:17:12,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:17:12,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:17:12,062 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-08-27 06:17:12,062 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-08-27 06:17:12,062 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION [2021-08-27 06:17:12,062 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION [2021-08-27 06:17:12,062 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2REQUIRES_VIOLATION [2021-08-27 06:17:12,062 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr3REQUIRES_VIOLATION [2021-08-27 06:17:12,062 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:17:12,062 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:17:12,062 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:17:12,063 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:17:12,063 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:17:12,063 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:17:12,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-08-27 06:17:12,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-08-27 06:17:12,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2021-08-27 06:17:12,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2021-08-27 06:17:12,674 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 06:17:12,676 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-08-27 06:17:12,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:17:12 BoogieIcfgContainer [2021-08-27 06:17:12,682 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 06:17:12,683 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 06:17:12,683 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 06:17:12,683 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 06:17:12,683 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:14:14" (3/4) ... [2021-08-27 06:17:12,689 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 06:17:12,689 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 06:17:12,690 INFO L168 Benchmark]: Toolchain (without parser) took 179516.52 ms. Allocated memory was 58.7 MB in the beginning and 134.2 MB in the end (delta: 75.5 MB). Free memory was 36.1 MB in the beginning and 62.3 MB in the end (delta: -26.2 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.1 GB. [2021-08-27 06:17:12,690 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 58.7 MB. Free memory was 40.7 MB in the beginning and 40.7 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:17:12,691 INFO L168 Benchmark]: CACSL2BoogieTranslator took 487.31 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 35.9 MB in the beginning and 40.6 MB in the end (delta: -4.7 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2021-08-27 06:17:12,691 INFO L168 Benchmark]: Boogie Preprocessor took 75.06 ms. Allocated memory is still 75.5 MB. Free memory was 40.6 MB in the beginning and 53.7 MB in the end (delta: -13.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 06:17:12,691 INFO L168 Benchmark]: RCFGBuilder took 946.20 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 53.7 MB in the beginning and 49.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. [2021-08-27 06:17:12,691 INFO L168 Benchmark]: TraceAbstraction took 177997.88 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 49.1 MB in the beginning and 62.3 MB in the end (delta: -13.2 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.1 GB. [2021-08-27 06:17:12,692 INFO L168 Benchmark]: Witness Printer took 6.27 ms. Allocated memory is still 134.2 MB. Free memory is still 62.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:17:12,693 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 58.7 MB. Free memory was 40.7 MB in the beginning and 40.7 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 487.31 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 35.9 MB in the beginning and 40.6 MB in the end (delta: -4.7 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 75.06 ms. Allocated memory is still 75.5 MB. Free memory was 40.6 MB in the beginning and 53.7 MB in the end (delta: -13.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 946.20 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 53.7 MB in the beginning and 49.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 177997.88 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 49.1 MB in the beginning and 62.3 MB in the end (delta: -13.2 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.1 GB. * Witness Printer took 6.27 ms. Allocated memory is still 134.2 MB. Free memory is still 62.3 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: 780]: 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 780. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L781] CALL entry_point() [L761] int len = 10; [L762] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L762] RET, EXPR ldv_malloc(sizeof(struct A18*)*len) [L762] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L763] COND TRUE \read(**array) [L764] struct A18 *p; [L765] int i=0; [L766] int j; [L767] COND TRUE i=0) [L776] free(array) [L776] free(array) [L776] free(array) [L781] 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: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 357 locations, 81 error locations. Started 1 CEGAR loops. OverallTime: 177954.8ms, OverallIterations: 10, TraceHistogramMax: 2, EmptinessCheckTime: 24.7ms, AutomataDifference: 137962.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 466 SDtfs, 1003 SDslu, 1478 SDs, 0 SdLazy, 1281 SolverSat, 181 SolverUnsat, 45 SolverUnknown, 0 SolverNotchecked, 95330.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 417 GetRequests, 329 SyntacticMatches, 8 SemanticMatches, 80 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 53208.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=0, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 70.8ms AutomataMinimizationTime, 9 MinimizatonAttempts, 436 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 74.9ms SsaConstructionTime, 160.6ms SatisfiabilityAnalysisTime, 17275.6ms InterpolantComputationTime, 197 NumberOfCodeBlocks, 197 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 376 ConstructedInterpolants, 23 QuantifiedInterpolants, 1758 SizeOfPredicates, 12 NumberOfNonLiveVariables, 814 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 18 InterpolantComputations, 11 PerfectInterpolantSequences, 32/48 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 06:17:12,759 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...