./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer --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 098cac8041f427989b0fcb649de06793770da06a .................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer --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 098cac8041f427989b0fcb649de06793770da06a ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:57:57,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:57:57,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:57:57,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:57:57,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:57:57,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:57:57,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:57:57,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:57:57,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:57:57,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:57:57,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:57:57,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:57:57,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:57:57,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:57:57,371 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:57:57,373 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:57:57,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:57:57,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:57:57,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:57:57,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:57:57,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:57:57,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:57:57,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:57:57,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:57:57,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:57:57,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:57:57,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:57:57,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:57:57,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:57:57,436 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:57:57,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:57:57,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:57:57,441 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:57:57,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:57:57,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:57:57,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:57:57,446 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:57:57,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:57:57,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:57:57,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:57:57,448 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:57:57,452 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-30 00:57:57,487 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:57:57,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:57:57,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:57:57,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:57:57,489 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:57:57,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:57:57,490 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:57:57,490 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:57:57,490 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:57:57,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:57:57,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:57:57,491 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-30 00:57:57,491 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-30 00:57:57,492 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-30 00:57:57,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:57:57,492 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 00:57:57,492 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:57:57,493 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:57:57,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:57:57,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:57:57,493 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:57:57,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:57:57,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:57:57,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:57:57,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:57:57,495 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:57:57,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:57:57,495 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:57:57,495 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:/tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 098cac8041f427989b0fcb649de06793770da06a [2020-11-30 00:57:57,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:57:57,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:57:57,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:57:57,900 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:57:57,901 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:57:57,903 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_2.i [2020-11-30 00:57:58,022 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/data/b11883ecd/95b81e3e81024c42ab1cbc62f4b35162/FLAGb2ebf21c8 [2020-11-30 00:57:58,943 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:57:58,944 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/sv-benchmarks/c/ldv-memsafety/memleaks_test6_2.i [2020-11-30 00:57:58,974 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/data/b11883ecd/95b81e3e81024c42ab1cbc62f4b35162/FLAGb2ebf21c8 [2020-11-30 00:57:59,162 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/data/b11883ecd/95b81e3e81024c42ab1cbc62f4b35162 [2020-11-30 00:57:59,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:57:59,167 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-30 00:57:59,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:57:59,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:57:59,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:57:59,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:57:59" (1/1) ... [2020-11-30 00:57:59,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21e7b643 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:59, skipping insertion in model container [2020-11-30 00:57:59,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:57:59" (1/1) ... [2020-11-30 00:57:59,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:57:59,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:58:00,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:58:00,076 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-11-30 00:58:00,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@41ccc719 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:00, skipping insertion in model container [2020-11-30 00:58:00,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:58:00,078 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-11-30 00:58:00,083 INFO L168 Benchmark]: Toolchain (without parser) took 913.10 ms. Allocated memory is still 119.5 MB. Free memory was 90.5 MB in the beginning and 91.3 MB in the end (delta: -815.2 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:00,085 INFO L168 Benchmark]: CDTParser took 0.74 ms. Allocated memory is still 86.0 MB. Free memory is still 49.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:58:00,087 INFO L168 Benchmark]: CACSL2BoogieTranslator took 908.77 ms. Allocated memory is still 119.5 MB. Free memory was 90.5 MB in the beginning and 91.3 MB in the end (delta: -815.2 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:00,091 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74 ms. Allocated memory is still 86.0 MB. Free memory is still 49.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 908.77 ms. Allocated memory is still 119.5 MB. Free memory was 90.5 MB in the beginning and 91.3 MB in the end (delta: -815.2 kB). 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 0.2.0-a4ecdab [2020-11-30 00:58:03,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:58:03,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:58:03,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:58:03,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:58:03,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:58:03,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:58:03,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:58:03,251 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:58:03,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:58:03,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:58:03,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:58:03,267 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:58:03,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:58:03,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:58:03,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:58:03,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:58:03,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:58:03,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:58:03,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:58:03,304 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:58:03,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:58:03,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:58:03,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:58:03,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:58:03,327 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:58:03,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:58:03,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:58:03,346 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:58:03,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:58:03,348 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:58:03,349 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:58:03,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:58:03,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:58:03,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:58:03,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:58:03,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:58:03,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:58:03,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:58:03,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:58:03,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:58:03,361 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-11-30 00:58:03,420 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:58:03,421 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:58:03,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:58:03,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:58:03,426 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:58:03,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:58:03,427 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:58:03,427 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:58:03,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:58:03,428 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:58:03,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:58:03,429 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-30 00:58:03,430 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-30 00:58:03,430 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-30 00:58:03,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:58:03,431 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 00:58:03,431 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 00:58:03,431 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 00:58:03,432 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:58:03,432 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:58:03,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:58:03,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:58:03,433 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:58:03,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:58:03,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:58:03,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:58:03,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:58:03,434 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 00:58:03,435 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 00:58:03,435 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:58:03,435 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 00:58:03,436 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:/tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 098cac8041f427989b0fcb649de06793770da06a [2020-11-30 00:58:04,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:58:04,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:58:04,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:58:04,068 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:58:04,069 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:58:04,070 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_2.i [2020-11-30 00:58:04,153 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/data/3dd692579/1ea7671873874762993ba4e4fb881cc8/FLAG883661835 [2020-11-30 00:58:04,929 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:58:04,930 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/sv-benchmarks/c/ldv-memsafety/memleaks_test6_2.i [2020-11-30 00:58:04,955 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/data/3dd692579/1ea7671873874762993ba4e4fb881cc8/FLAG883661835 [2020-11-30 00:58:05,192 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/data/3dd692579/1ea7671873874762993ba4e4fb881cc8 [2020-11-30 00:58:05,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:58:05,199 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-30 00:58:05,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:58:05,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:58:05,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:58:05,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:58:05" (1/1) ... [2020-11-30 00:58:05,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50bbb1a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:05, skipping insertion in model container [2020-11-30 00:58:05,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:58:05" (1/1) ... [2020-11-30 00:58:05,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:58:05,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:58:06,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:58:06,109 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-30 00:58:06,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:58:06,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:58:06,263 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:58:06,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:58:06,517 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:58:06,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:06 WrapperNode [2020-11-30 00:58:06,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:58:06,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:58:06,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:58:06,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:58:06,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:06" (1/1) ... [2020-11-30 00:58:06,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:06" (1/1) ... [2020-11-30 00:58:06,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:06" (1/1) ... [2020-11-30 00:58:06,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:06" (1/1) ... [2020-11-30 00:58:06,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:06" (1/1) ... [2020-11-30 00:58:06,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:06" (1/1) ... [2020-11-30 00:58:06,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:06" (1/1) ... [2020-11-30 00:58:06,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:58:06,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:58:06,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:58:06,693 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:58:06,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:58:06,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-30 00:58:06,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:58:06,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-11-30 00:58:06,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-11-30 00:58:06,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-30 00:58:06,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-30 00:58:06,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-30 00:58:06,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-30 00:58:06,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-30 00:58:06,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2020-11-30 00:58:06,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2020-11-30 00:58:06,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-11-30 00:58:06,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-11-30 00:58:06,804 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-11-30 00:58:06,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-11-30 00:58:06,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-11-30 00:58:06,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-11-30 00:58:06,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-11-30 00:58:06,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-11-30 00:58:06,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2020-11-30 00:58:06,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2020-11-30 00:58:06,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2020-11-30 00:58:06,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2020-11-30 00:58:06,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2020-11-30 00:58:06,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2020-11-30 00:58:06,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2020-11-30 00:58:06,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2020-11-30 00:58:06,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2020-11-30 00:58:06,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2020-11-30 00:58:06,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2020-11-30 00:58:06,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2020-11-30 00:58:06,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2020-11-30 00:58:06,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2020-11-30 00:58:06,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2020-11-30 00:58:06,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2020-11-30 00:58:06,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2020-11-30 00:58:06,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2020-11-30 00:58:06,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2020-11-30 00:58:06,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2020-11-30 00:58:06,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2020-11-30 00:58:06,812 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-11-30 00:58:06,812 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-11-30 00:58:06,812 INFO L138 BoogieDeclarations]: Found implementation of procedure f6 [2020-11-30 00:58:06,812 INFO L138 BoogieDeclarations]: Found implementation of procedure g6 [2020-11-30 00:58:06,813 INFO L138 BoogieDeclarations]: Found implementation of procedure probe3_6 [2020-11-30 00:58:06,813 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_6 [2020-11-30 00:58:06,814 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2020-11-30 00:58:06,814 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-30 00:58:06,814 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-11-30 00:58:06,815 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-11-30 00:58:06,815 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-11-30 00:58:06,815 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-30 00:58:06,817 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-30 00:58:06,817 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-30 00:58:06,817 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-30 00:58:06,817 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-30 00:58:06,818 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-30 00:58:06,818 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-30 00:58:06,819 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-30 00:58:06,819 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-30 00:58:06,819 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-30 00:58:06,820 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-30 00:58:06,820 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-30 00:58:06,821 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-30 00:58:06,821 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-30 00:58:06,822 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-30 00:58:06,823 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-30 00:58:06,824 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-30 00:58:06,824 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-30 00:58:06,825 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-30 00:58:06,825 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-30 00:58:06,825 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-30 00:58:06,825 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-30 00:58:06,826 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-30 00:58:06,826 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-30 00:58:06,826 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-30 00:58:06,826 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-30 00:58:06,827 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-30 00:58:06,827 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-30 00:58:06,827 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-30 00:58:06,827 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-30 00:58:06,828 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-30 00:58:06,828 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-30 00:58:06,828 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-30 00:58:06,828 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-30 00:58:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-30 00:58:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-30 00:58:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-30 00:58:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-30 00:58:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-30 00:58:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-30 00:58:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-30 00:58:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-30 00:58:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-30 00:58:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-30 00:58:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-30 00:58:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-30 00:58:06,832 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-30 00:58:06,832 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-30 00:58:06,832 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-30 00:58:06,832 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-30 00:58:06,833 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-30 00:58:06,843 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-30 00:58:06,843 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-30 00:58:06,843 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-30 00:58:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-30 00:58:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-30 00:58:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-30 00:58:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-30 00:58:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-30 00:58:06,846 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-30 00:58:06,847 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-30 00:58:06,847 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-30 00:58:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-30 00:58:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-30 00:58:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-30 00:58:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-30 00:58:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-30 00:58:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-30 00:58:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-30 00:58:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-30 00:58:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-30 00:58:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-30 00:58:06,851 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-30 00:58:06,852 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-30 00:58:06,853 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-30 00:58:06,857 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-30 00:58:06,857 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-30 00:58:06,857 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-30 00:58:06,858 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-30 00:58:06,858 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-30 00:58:06,859 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-30 00:58:06,859 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-30 00:58:06,861 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-30 00:58:06,862 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-30 00:58:06,862 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-30 00:58:06,862 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-30 00:58:06,863 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-30 00:58:06,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-30 00:58:06,870 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-30 00:58:06,871 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-30 00:58:06,871 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-30 00:58:06,871 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-30 00:58:06,871 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-30 00:58:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-30 00:58:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-30 00:58:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-30 00:58:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-30 00:58:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-30 00:58:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-30 00:58:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-30 00:58:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-30 00:58:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-30 00:58:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-30 00:58:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-30 00:58:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-30 00:58:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-30 00:58:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-30 00:58:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-11-30 00:58:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-30 00:58:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2020-11-30 00:58:06,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2020-11-30 00:58:06,876 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-11-30 00:58:06,877 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-11-30 00:58:06,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-11-30 00:58:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 00:58:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-11-30 00:58:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-11-30 00:58:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-11-30 00:58:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-30 00:58:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-11-30 00:58:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-11-30 00:58:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-11-30 00:58:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-30 00:58:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-11-30 00:58:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-11-30 00:58:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2020-11-30 00:58:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2020-11-30 00:58:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-11-30 00:58:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2020-11-30 00:58:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:58:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2020-11-30 00:58:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2020-11-30 00:58:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2020-11-30 00:58:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2020-11-30 00:58:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2020-11-30 00:58:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 00:58:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 00:58:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2020-11-30 00:58:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2020-11-30 00:58:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-11-30 00:58:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2020-11-30 00:58:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2020-11-30 00:58:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2020-11-30 00:58:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2020-11-30 00:58:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2020-11-30 00:58:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2020-11-30 00:58:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2020-11-30 00:58:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2020-11-30 00:58:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2020-11-30 00:58:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2020-11-30 00:58:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2020-11-30 00:58:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-11-30 00:58:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-11-30 00:58:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-11-30 00:58:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure f6 [2020-11-30 00:58:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure g6 [2020-11-30 00:58:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure probe3_6 [2020-11-30 00:58:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_6 [2020-11-30 00:58:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2020-11-30 00:58:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-30 00:58:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-30 00:58:06,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:58:06,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-30 00:58:06,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:58:06,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-11-30 00:58:06,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-11-30 00:58:06,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-11-30 00:58:06,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2020-11-30 00:58:06,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2020-11-30 00:58:07,987 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-30 00:58:08,675 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-30 00:58:09,313 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:58:09,317 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-30 00:58:09,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:58:09 BoogieIcfgContainer [2020-11-30 00:58:09,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:58:09,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:58:09,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:58:09,331 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:58:09,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:58:05" (1/3) ... [2020-11-30 00:58:09,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a8e30c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:58:09, skipping insertion in model container [2020-11-30 00:58:09,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:06" (2/3) ... [2020-11-30 00:58:09,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a8e30c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:58:09, skipping insertion in model container [2020-11-30 00:58:09,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:58:09" (3/3) ... [2020-11-30 00:58:09,338 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test6_2.i [2020-11-30 00:58:09,353 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:58:09,361 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 86 error locations. [2020-11-30 00:58:09,377 INFO L253 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2020-11-30 00:58:09,417 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:58:09,418 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-30 00:58:09,418 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:58:09,418 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:58:09,419 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:58:09,419 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:58:09,419 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:58:09,419 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:58:09,457 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states. [2020-11-30 00:58:09,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 00:58:09,470 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:09,471 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:09,472 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, probe3_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err1REQUIRES_VIOLATION, probe3_6Err0REQUIRES_VIOLATION, probe3_6Err5ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err7ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err6ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-30 00:58:09,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:09,484 INFO L82 PathProgramCache]: Analyzing trace with hash -2083337596, now seen corresponding path program 1 times [2020-11-30 00:58:09,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:58:09,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342300123] [2020-11-30 00:58:09,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 00:58:09,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:09,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:58:09,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:58:10,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:10,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:58:10,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:10,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342300123] [2020-11-30 00:58:10,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:10,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-30 00:58:10,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822857705] [2020-11-30 00:58:10,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:58:10,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:58:10,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:58:10,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:58:10,226 INFO L87 Difference]: Start difference. First operand 139 states. Second operand 5 states. [2020-11-30 00:58:10,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:10,434 INFO L93 Difference]: Finished difference Result 94 states and 104 transitions. [2020-11-30 00:58:10,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:58:10,437 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-11-30 00:58:10,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:10,452 INFO L225 Difference]: With dead ends: 94 [2020-11-30 00:58:10,452 INFO L226 Difference]: Without dead ends: 91 [2020-11-30 00:58:10,455 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:58:10,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-11-30 00:58:10,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 70. [2020-11-30 00:58:10,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-11-30 00:58:10,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 74 transitions. [2020-11-30 00:58:10,526 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 74 transitions. Word has length 20 [2020-11-30 00:58:10,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:10,526 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 74 transitions. [2020-11-30 00:58:10,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:58:10,526 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 74 transitions. [2020-11-30 00:58:10,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 00:58:10,528 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:10,528 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:10,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 00:58:10,742 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, probe3_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err1REQUIRES_VIOLATION, probe3_6Err0REQUIRES_VIOLATION, probe3_6Err5ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err7ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err6ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-30 00:58:10,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:10,743 INFO L82 PathProgramCache]: Analyzing trace with hash 2015116195, now seen corresponding path program 1 times [2020-11-30 00:58:10,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:58:10,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904108214] [2020-11-30 00:58:10,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 00:58:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:11,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-30 00:58:11,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:58:11,188 INFO L350 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-11-30 00:58:11,189 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2020-11-30 00:58:11,190 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:58:11,236 INFO L625 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2020-11-30 00:58:11,244 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 00:58:11,250 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 00:58:11,251 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2020-11-30 00:58:11,253 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 00:58:11,298 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2020-11-30 00:58:11,300 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:58:11,304 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:58:11,304 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 00:58:11,305 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2020-11-30 00:58:11,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:11,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:58:11,432 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:58:11,446 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2020-11-30 00:58:11,451 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:58:11,460 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:58:11,461 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 00:58:11,461 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:16 [2020-11-30 00:58:11,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:11,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904108214] [2020-11-30 00:58:11,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:11,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-30 00:58:11,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176958911] [2020-11-30 00:58:11,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:58:11,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:58:11,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:58:11,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:58:11,493 INFO L87 Difference]: Start difference. First operand 70 states and 74 transitions. Second operand 5 states. [2020-11-30 00:58:11,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:11,827 INFO L93 Difference]: Finished difference Result 111 states and 120 transitions. [2020-11-30 00:58:11,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:58:11,828 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-11-30 00:58:11,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:11,832 INFO L225 Difference]: With dead ends: 111 [2020-11-30 00:58:11,832 INFO L226 Difference]: Without dead ends: 108 [2020-11-30 00:58:11,833 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:58:11,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-11-30 00:58:11,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 75. [2020-11-30 00:58:11,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-11-30 00:58:11,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2020-11-30 00:58:11,867 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 20 [2020-11-30 00:58:11,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:11,869 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2020-11-30 00:58:11,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:58:11,870 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2020-11-30 00:58:11,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 00:58:11,871 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:11,872 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:12,085 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 00:58:12,089 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, probe3_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err1REQUIRES_VIOLATION, probe3_6Err0REQUIRES_VIOLATION, probe3_6Err5ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err7ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err6ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-30 00:58:12,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:12,090 INFO L82 PathProgramCache]: Analyzing trace with hash 2015116196, now seen corresponding path program 1 times [2020-11-30 00:58:12,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:58:12,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [35439206] [2020-11-30 00:58:12,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 00:58:12,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:12,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 00:58:12,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:58:12,435 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:58:12,435 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2020-11-30 00:58:12,436 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:58:12,489 INFO L625 ElimStorePlain]: treesize reduction 10, result has 64.3 percent of original size [2020-11-30 00:58:12,492 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 00:58:12,492 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2020-11-30 00:58:12,563 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2020-11-30 00:58:12,566 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:58:12,577 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:58:12,578 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 00:58:12,578 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:7 [2020-11-30 00:58:12,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:12,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:58:12,865 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-11-30 00:58:12,882 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2020-11-30 00:58:12,883 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 00:58:12,932 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:58:12,933 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 00:58:12,934 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:28 [2020-11-30 00:58:13,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:13,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [35439206] [2020-11-30 00:58:13,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:13,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-30 00:58:13,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131193253] [2020-11-30 00:58:13,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:58:13,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:58:13,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:58:13,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:58:13,051 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand 6 states. [2020-11-30 00:58:13,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:13,543 INFO L93 Difference]: Finished difference Result 125 states and 131 transitions. [2020-11-30 00:58:13,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:58:13,545 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-11-30 00:58:13,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:13,547 INFO L225 Difference]: With dead ends: 125 [2020-11-30 00:58:13,547 INFO L226 Difference]: Without dead ends: 124 [2020-11-30 00:58:13,548 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:58:13,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-11-30 00:58:13,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 106. [2020-11-30 00:58:13,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-11-30 00:58:13,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 127 transitions. [2020-11-30 00:58:13,571 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 127 transitions. Word has length 20 [2020-11-30 00:58:13,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:13,572 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 127 transitions. [2020-11-30 00:58:13,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:58:13,572 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 127 transitions. [2020-11-30 00:58:13,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-30 00:58:13,574 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:13,574 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:13,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 00:58:13,789 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, probe3_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err1REQUIRES_VIOLATION, probe3_6Err0REQUIRES_VIOLATION, probe3_6Err5ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err7ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err6ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-30 00:58:13,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:13,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1702507591, now seen corresponding path program 1 times [2020-11-30 00:58:13,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:58:13,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1528186122] [2020-11-30 00:58:13,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-30 00:58:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:14,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:58:14,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:58:14,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:14,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:58:14,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:14,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1528186122] [2020-11-30 00:58:14,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:14,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-30 00:58:14,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297309038] [2020-11-30 00:58:14,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:58:14,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:58:14,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:58:14,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:58:14,207 INFO L87 Difference]: Start difference. First operand 106 states and 127 transitions. Second operand 5 states. [2020-11-30 00:58:14,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:14,266 INFO L93 Difference]: Finished difference Result 104 states and 123 transitions. [2020-11-30 00:58:14,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:58:14,269 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-11-30 00:58:14,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:14,271 INFO L225 Difference]: With dead ends: 104 [2020-11-30 00:58:14,271 INFO L226 Difference]: Without dead ends: 104 [2020-11-30 00:58:14,272 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:58:14,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-11-30 00:58:14,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-11-30 00:58:14,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-11-30 00:58:14,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 123 transitions. [2020-11-30 00:58:14,288 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 123 transitions. Word has length 22 [2020-11-30 00:58:14,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:14,289 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 123 transitions. [2020-11-30 00:58:14,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:58:14,289 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 123 transitions. [2020-11-30 00:58:14,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-30 00:58:14,293 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:14,294 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:14,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 00:58:14,495 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, probe3_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err1REQUIRES_VIOLATION, probe3_6Err0REQUIRES_VIOLATION, probe3_6Err5ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err7ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err6ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-30 00:58:14,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:14,496 INFO L82 PathProgramCache]: Analyzing trace with hash -503576158, now seen corresponding path program 1 times [2020-11-30 00:58:14,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:58:14,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1363823408] [2020-11-30 00:58:14,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-30 00:58:14,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:14,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:58:14,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:58:14,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:14,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:58:14,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:14,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1363823408] [2020-11-30 00:58:14,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:14,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-30 00:58:14,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357979880] [2020-11-30 00:58:14,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 00:58:14,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:58:14,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 00:58:14,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-30 00:58:14,998 INFO L87 Difference]: Start difference. First operand 104 states and 123 transitions. Second operand 10 states. [2020-11-30 00:58:15,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:15,119 INFO L93 Difference]: Finished difference Result 118 states and 137 transitions. [2020-11-30 00:58:15,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-30 00:58:15,124 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-11-30 00:58:15,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:15,125 INFO L225 Difference]: With dead ends: 118 [2020-11-30 00:58:15,126 INFO L226 Difference]: Without dead ends: 114 [2020-11-30 00:58:15,126 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-11-30 00:58:15,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-11-30 00:58:15,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 108. [2020-11-30 00:58:15,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-30 00:58:15,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 126 transitions. [2020-11-30 00:58:15,148 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 126 transitions. Word has length 22 [2020-11-30 00:58:15,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:15,148 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 126 transitions. [2020-11-30 00:58:15,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 00:58:15,149 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 126 transitions. [2020-11-30 00:58:15,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-30 00:58:15,156 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:15,156 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:15,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-30 00:58:15,367 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, probe3_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err1REQUIRES_VIOLATION, probe3_6Err0REQUIRES_VIOLATION, probe3_6Err5ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err7ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err6ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-30 00:58:15,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:15,368 INFO L82 PathProgramCache]: Analyzing trace with hash -1238127481, now seen corresponding path program 1 times [2020-11-30 00:58:15,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:58:15,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686637290] [2020-11-30 00:58:15,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-30 00:58:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:15,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 00:58:15,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:58:15,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:15,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:58:16,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:16,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1686637290] [2020-11-30 00:58:16,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:16,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2020-11-30 00:58:16,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198209221] [2020-11-30 00:58:16,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 00:58:16,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:58:16,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 00:58:16,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-11-30 00:58:16,042 INFO L87 Difference]: Start difference. First operand 108 states and 126 transitions. Second operand 10 states. [2020-11-30 00:58:16,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:16,508 INFO L93 Difference]: Finished difference Result 118 states and 125 transitions. [2020-11-30 00:58:16,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-30 00:58:16,510 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2020-11-30 00:58:16,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:16,511 INFO L225 Difference]: With dead ends: 118 [2020-11-30 00:58:16,511 INFO L226 Difference]: Without dead ends: 118 [2020-11-30 00:58:16,512 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-11-30 00:58:16,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-11-30 00:58:16,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 106. [2020-11-30 00:58:16,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-11-30 00:58:16,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 122 transitions. [2020-11-30 00:58:16,532 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 122 transitions. Word has length 23 [2020-11-30 00:58:16,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:16,534 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 122 transitions. [2020-11-30 00:58:16,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 00:58:16,534 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 122 transitions. [2020-11-30 00:58:16,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 00:58:16,536 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:16,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:16,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-30 00:58:16,751 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, probe3_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err1REQUIRES_VIOLATION, probe3_6Err0REQUIRES_VIOLATION, probe3_6Err5ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err7ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err6ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-30 00:58:16,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:16,752 INFO L82 PathProgramCache]: Analyzing trace with hash 272754043, now seen corresponding path program 1 times [2020-11-30 00:58:16,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:58:16,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2146540609] [2020-11-30 00:58:16,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-30 00:58:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:16,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:58:16,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:58:16,994 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-30 00:58:16,994 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:58:16,998 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:58:16,998 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 00:58:16,999 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-30 00:58:17,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:17,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:58:17,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:17,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2146540609] [2020-11-30 00:58:17,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:17,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 5 [2020-11-30 00:58:17,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728857505] [2020-11-30 00:58:17,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:58:17,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:58:17,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:58:17,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:58:17,169 INFO L87 Difference]: Start difference. First operand 106 states and 122 transitions. Second operand 6 states. [2020-11-30 00:58:17,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:17,419 INFO L93 Difference]: Finished difference Result 108 states and 120 transitions. [2020-11-30 00:58:17,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:58:17,420 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-11-30 00:58:17,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:17,422 INFO L225 Difference]: With dead ends: 108 [2020-11-30 00:58:17,422 INFO L226 Difference]: Without dead ends: 108 [2020-11-30 00:58:17,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:58:17,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-11-30 00:58:17,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 106. [2020-11-30 00:58:17,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-11-30 00:58:17,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 120 transitions. [2020-11-30 00:58:17,433 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 120 transitions. Word has length 24 [2020-11-30 00:58:17,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:17,434 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 120 transitions. [2020-11-30 00:58:17,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:58:17,435 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 120 transitions. [2020-11-30 00:58:17,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 00:58:17,436 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:17,436 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:17,650 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-30 00:58:17,652 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, probe3_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err1REQUIRES_VIOLATION, probe3_6Err0REQUIRES_VIOLATION, probe3_6Err5ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err7ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err6ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-30 00:58:17,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:17,653 INFO L82 PathProgramCache]: Analyzing trace with hash -232804582, now seen corresponding path program 1 times [2020-11-30 00:58:17,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:58:17,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1367835370] [2020-11-30 00:58:17,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-11-30 00:58:17,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:17,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 00:58:17,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:58:17,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:17,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:58:18,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:18,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1367835370] [2020-11-30 00:58:18,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:18,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-30 00:58:18,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582473840] [2020-11-30 00:58:18,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:58:18,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:58:18,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:58:18,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:58:18,027 INFO L87 Difference]: Start difference. First operand 106 states and 120 transitions. Second operand 5 states. [2020-11-30 00:58:18,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:18,077 INFO L93 Difference]: Finished difference Result 68 states and 70 transitions. [2020-11-30 00:58:18,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:58:18,078 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-11-30 00:58:18,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:18,079 INFO L225 Difference]: With dead ends: 68 [2020-11-30 00:58:18,079 INFO L226 Difference]: Without dead ends: 64 [2020-11-30 00:58:18,080 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:58:18,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-11-30 00:58:18,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-11-30 00:58:18,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-11-30 00:58:18,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 66 transitions. [2020-11-30 00:58:18,102 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 66 transitions. Word has length 24 [2020-11-30 00:58:18,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:18,103 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 66 transitions. [2020-11-30 00:58:18,103 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:58:18,103 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2020-11-30 00:58:18,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-30 00:58:18,104 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:18,105 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:18,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-30 00:58:18,306 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, probe3_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err1REQUIRES_VIOLATION, probe3_6Err0REQUIRES_VIOLATION, probe3_6Err5ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err7ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err6ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-30 00:58:18,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:18,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1514319562, now seen corresponding path program 1 times [2020-11-30 00:58:18,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:58:18,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [861891627] [2020-11-30 00:58:18,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-11-30 00:58:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:18,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-30 00:58:18,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:58:18,636 INFO L350 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-11-30 00:58:18,637 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2020-11-30 00:58:18,637 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:58:18,667 INFO L625 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2020-11-30 00:58:18,669 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 00:58:18,670 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 00:58:18,671 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2020-11-30 00:58:18,672 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 00:58:18,823 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:58:18,824 INFO L384 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 12 treesize of output 28 [2020-11-30 00:58:18,825 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:58:18,850 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2020-11-30 00:58:18,851 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 00:58:18,851 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2020-11-30 00:58:19,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:19,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:58:19,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:19,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [861891627] [2020-11-30 00:58:19,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:19,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 5] imperfect sequences [] total 8 [2020-11-30 00:58:19,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598319808] [2020-11-30 00:58:19,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 00:58:19,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:58:19,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 00:58:19,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:58:19,243 INFO L87 Difference]: Start difference. First operand 64 states and 66 transitions. Second operand 9 states. [2020-11-30 00:58:21,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:21,666 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2020-11-30 00:58:21,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-30 00:58:21,667 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-11-30 00:58:21,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:21,668 INFO L225 Difference]: With dead ends: 63 [2020-11-30 00:58:21,668 INFO L226 Difference]: Without dead ends: 63 [2020-11-30 00:58:21,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 41 SyntacticMatches, 8 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2020-11-30 00:58:21,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-11-30 00:58:21,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-11-30 00:58:21,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-11-30 00:58:21,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 65 transitions. [2020-11-30 00:58:21,673 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 65 transitions. Word has length 28 [2020-11-30 00:58:21,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:21,673 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 65 transitions. [2020-11-30 00:58:21,673 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 00:58:21,673 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 65 transitions. [2020-11-30 00:58:21,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-30 00:58:21,674 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:21,674 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:21,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-30 00:58:21,875 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, probe3_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err1REQUIRES_VIOLATION, probe3_6Err0REQUIRES_VIOLATION, probe3_6Err5ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err7ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err6ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-30 00:58:21,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:21,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1514319563, now seen corresponding path program 1 times [2020-11-30 00:58:21,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:58:21,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2053854841] [2020-11-30 00:58:21,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-11-30 00:58:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:22,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-30 00:58:22,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:58:22,153 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:58:22,153 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2020-11-30 00:58:22,154 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:58:22,198 INFO L625 ElimStorePlain]: treesize reduction 10, result has 64.3 percent of original size [2020-11-30 00:58:22,200 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 00:58:22,200 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2020-11-30 00:58:22,383 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:58:22,383 INFO L384 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 14 treesize of output 30 [2020-11-30 00:58:22,385 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:58:22,412 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:58:22,462 INFO L625 ElimStorePlain]: treesize reduction 14, result has 53.3 percent of original size [2020-11-30 00:58:22,463 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 00:58:22,463 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:16 [2020-11-30 00:58:22,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:22,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:58:22,997 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:58:24,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:24,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2053854841] [2020-11-30 00:58:24,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:24,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 14 [2020-11-30 00:58:24,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587212143] [2020-11-30 00:58:24,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-30 00:58:24,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:58:24,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-30 00:58:24,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2020-11-30 00:58:24,289 INFO L87 Difference]: Start difference. First operand 63 states and 65 transitions. Second operand 15 states. [2020-11-30 00:58:25,766 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-11-30 00:58:29,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:29,479 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2020-11-30 00:58:29,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-30 00:58:29,480 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 28 [2020-11-30 00:58:29,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:29,481 INFO L225 Difference]: With dead ends: 61 [2020-11-30 00:58:29,481 INFO L226 Difference]: Without dead ends: 61 [2020-11-30 00:58:29,481 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 36 SyntacticMatches, 7 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2020-11-30 00:58:29,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-11-30 00:58:29,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-11-30 00:58:29,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-11-30 00:58:29,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2020-11-30 00:58:29,486 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 28 [2020-11-30 00:58:29,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:29,486 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2020-11-30 00:58:29,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-30 00:58:29,487 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2020-11-30 00:58:29,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-30 00:58:29,488 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:29,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:29,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-11-30 00:58:29,703 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, probe3_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err1REQUIRES_VIOLATION, probe3_6Err0REQUIRES_VIOLATION, probe3_6Err5ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err7ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err6ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-30 00:58:29,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:29,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1727877462, now seen corresponding path program 1 times [2020-11-30 00:58:29,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:58:29,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012873626] [2020-11-30 00:58:29,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-11-30 00:58:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:29,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-30 00:58:29,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:58:30,116 INFO L350 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-11-30 00:58:30,116 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2020-11-30 00:58:30,117 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:58:30,160 INFO L625 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2020-11-30 00:58:30,161 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 00:58:30,161 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 00:58:30,162 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2020-11-30 00:58:30,162 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 00:58:30,193 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2020-11-30 00:58:30,196 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:58:30,198 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:58:30,199 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 00:58:30,199 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2020-11-30 00:58:30,277 INFO L384 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 0 case distinctions, treesize of input 12 treesize of output 9 [2020-11-30 00:58:30,279 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:58:30,283 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:58:30,284 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 00:58:30,284 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2020-11-30 00:58:32,418 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:58:32,418 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2020-11-30 00:58:32,420 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:58:32,422 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:58:32,427 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:58:32,451 INFO L625 ElimStorePlain]: treesize reduction 18, result has 41.9 percent of original size [2020-11-30 00:58:32,452 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 00:58:32,453 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:13 [2020-11-30 00:58:32,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:32,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:58:34,714 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:58:34,858 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:58:34,907 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2020-11-30 00:58:34,911 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:58:34,920 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:58:34,921 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 00:58:34,921 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:17 [2020-11-30 00:58:35,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:35,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012873626] [2020-11-30 00:58:35,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:35,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 6] imperfect sequences [] total 13 [2020-11-30 00:58:35,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972231366] [2020-11-30 00:58:35,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-30 00:58:35,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:58:35,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-30 00:58:35,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=135, Unknown=2, NotChecked=0, Total=182 [2020-11-30 00:58:35,037 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand 14 states. [2020-11-30 00:58:39,143 WARN L193 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 31 [2020-11-30 00:58:53,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:53,832 INFO L93 Difference]: Finished difference Result 65 states and 66 transitions. [2020-11-30 00:58:53,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-30 00:58:53,835 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 29 [2020-11-30 00:58:53,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:53,836 INFO L225 Difference]: With dead ends: 65 [2020-11-30 00:58:53,836 INFO L226 Difference]: Without dead ends: 54 [2020-11-30 00:58:53,837 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 42 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=86, Invalid=254, Unknown=2, NotChecked=0, Total=342 [2020-11-30 00:58:53,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-30 00:58:53,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-11-30 00:58:53,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-30 00:58:53,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 53 transitions. [2020-11-30 00:58:53,841 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 53 transitions. Word has length 29 [2020-11-30 00:58:53,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:53,842 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 53 transitions. [2020-11-30 00:58:53,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-30 00:58:53,842 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 53 transitions. [2020-11-30 00:58:53,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-11-30 00:58:53,843 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:53,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:54,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-11-30 00:58:54,047 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, probe3_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err1REQUIRES_VIOLATION, probe3_6Err0REQUIRES_VIOLATION, probe3_6Err5ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err7ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err6ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-30 00:58:54,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:54,048 INFO L82 PathProgramCache]: Analyzing trace with hash 764373490, now seen corresponding path program 1 times [2020-11-30 00:58:54,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:58:54,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1429945561] [2020-11-30 00:58:54,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2020-11-30 00:58:54,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:54,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 22 conjunts are in the unsatisfiable core [2020-11-30 00:58:54,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:58:54,382 INFO L350 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-11-30 00:58:54,383 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2020-11-30 00:58:54,383 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:58:54,412 INFO L625 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2020-11-30 00:58:54,413 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 00:58:54,414 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 00:58:54,415 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2020-11-30 00:58:54,415 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 00:58:54,442 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2020-11-30 00:58:54,444 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:58:54,446 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:58:54,446 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 00:58:54,447 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2020-11-30 00:58:54,556 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:58:54,557 INFO L384 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 12 treesize of output 28 [2020-11-30 00:58:54,557 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:58:54,582 INFO L625 ElimStorePlain]: treesize reduction 10, result has 66.7 percent of original size [2020-11-30 00:58:54,583 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:58:54,584 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 00:58:54,584 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:20 [2020-11-30 00:58:54,585 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:58:54,614 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:58:54,649 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:58:54,683 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-11-30 00:58:54,684 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:58:54,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:58:54,691 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-11-30 00:58:54,693 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-30 00:58:54,700 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:58:54,701 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 00:58:54,701 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:11 [2020-11-30 00:58:54,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:54,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:58:55,026 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2020-11-30 00:58:55,026 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:58:55,040 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:58:55,040 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 00:58:55,040 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:6 [2020-11-30 00:58:55,193 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:58:55,193 INFO L384 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 17 treesize of output 21 [2020-11-30 00:58:55,194 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:58:55,198 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-11-30 00:58:55,218 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:58:55,218 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 00:58:55,219 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:21 [2020-11-30 00:58:55,291 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:58:55,304 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:58:55,305 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:58:55,310 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:58:55,311 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:58:55,437 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:58:55,554 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 00:58:55,554 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-11-30 00:58:55,557 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:58:55,559 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:58:55,560 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:58:55,562 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 00:58:55,562 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-11-30 00:58:55,564 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 00:58:55,565 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-11-30 00:58:55,584 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2020-11-30 00:58:55,587 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:58:55,600 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2020-11-30 00:58:55,609 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-30 00:58:55,614 WARN L234 Elim1Store]: Array PQE input equivalent to true [2020-11-30 00:58:55,614 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-11-30 00:58:55,679 INFO L625 ElimStorePlain]: treesize reduction 5, result has 80.8 percent of original size [2020-11-30 00:58:55,905 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:58:56,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:56,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1429945561] [2020-11-30 00:58:56,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:56,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 21 [2020-11-30 00:58:56,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351723233] [2020-11-30 00:58:56,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-30 00:58:56,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:58:56,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-30 00:58:56,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2020-11-30 00:58:56,110 INFO L87 Difference]: Start difference. First operand 54 states and 53 transitions. Second operand 22 states. [2020-11-30 00:59:06,374 WARN L193 SmtUtils]: Spent 10.14 s on a formula simplification. DAG size of input: 59 DAG size of output: 40 [2020-11-30 00:59:19,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:59:19,873 INFO L93 Difference]: Finished difference Result 53 states and 52 transitions. [2020-11-30 00:59:19,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-11-30 00:59:19,874 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 38 [2020-11-30 00:59:19,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:59:19,875 INFO L225 Difference]: With dead ends: 53 [2020-11-30 00:59:19,875 INFO L226 Difference]: Without dead ends: 53 [2020-11-30 00:59:19,876 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 51 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 15.9s TimeCoverageRelationStatistics Valid=197, Invalid=991, Unknown=2, NotChecked=0, Total=1190 [2020-11-30 00:59:19,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-11-30 00:59:19,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-11-30 00:59:19,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-11-30 00:59:19,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 52 transitions. [2020-11-30 00:59:19,881 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 52 transitions. Word has length 38 [2020-11-30 00:59:19,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:59:19,882 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 52 transitions. [2020-11-30 00:59:19,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-11-30 00:59:19,882 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 52 transitions. [2020-11-30 00:59:19,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-11-30 00:59:19,883 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:59:19,883 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:59:20,095 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-11-30 00:59:20,095 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, probe3_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err1REQUIRES_VIOLATION, probe3_6Err0REQUIRES_VIOLATION, probe3_6Err5ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err7ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err6ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-30 00:59:20,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:59:20,095 INFO L82 PathProgramCache]: Analyzing trace with hash 764373491, now seen corresponding path program 1 times [2020-11-30 00:59:20,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:59:20,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1508403397] [2020-11-30 00:59:20,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-11-30 00:59:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:59:20,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 00:59:20,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:59:20,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:59:20,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:59:20,723 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:20,755 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2020-11-30 00:59:20,756 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 00:59:20,772 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:59:20,772 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 00:59:20,772 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:12 [2020-11-30 00:59:20,970 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:59:20,970 INFO L384 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 16 treesize of output 20 [2020-11-30 00:59:20,971 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:20,973 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:20,974 INFO L545 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-30 00:59:21,039 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:59:21,040 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:21,041 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-30 00:59:21,041 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:30 [2020-11-30 00:59:21,042 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:21,191 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:21,375 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:21,517 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:21,632 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:21,633 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:21,634 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:21,635 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:21,636 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:59:21,636 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:21,638 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:21,639 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:21,640 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:21,640 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:21,641 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:59:21,654 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:59:23,695 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (exists ((v_prenex_2 (_ BitVec 32))) (not (bvule (bvadd |c_~#a6~0.offset| (_ bv4 32)) v_prenex_2)))) (.cse1 (forall ((v_arrayElimCell_23 (_ BitVec 32)) (v_probe3_6_~a.offset_BEFORE_CALL_10 (_ BitVec 32))) (or (bvule (bvadd |c_~#a6~0.offset| (_ bv4 32)) v_arrayElimCell_23) (exists ((v_prenex_1 (_ BitVec 32))) (and (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_10 (_ bv4 32)) v_prenex_1) (not (bvule (bvadd |c_~#a6~0.offset| (_ bv4 32)) v_prenex_1)))) (not (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_10 (_ bv4 32)) v_arrayElimCell_23))))) (.cse3 (forall ((v_arrayElimCell_23 (_ BitVec 32))) (bvule (bvadd |c_~#a6~0.offset| (_ bv4 32)) v_arrayElimCell_23))) (.cse0 (not (bvule |c_~#a6~0.offset| (bvadd |c_~#a6~0.offset| (_ bv4 32)))))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse2 (forall ((v_arrayElimCell_24 (_ BitVec 32)) (v_probe3_6_~a.offset_BEFORE_CALL_10 (_ BitVec 32))) (or (not (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_10 (_ bv4 32)) v_arrayElimCell_24)) (exists ((v_prenex_1 (_ BitVec 32))) (and (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_10 (_ bv4 32)) v_prenex_1) (not (bvule (bvadd |c_~#a6~0.offset| (_ bv4 32)) v_prenex_1)))))) .cse3) (or .cse0 .cse1) (or .cse0 (forall ((v_arrayElimCell_24 (_ BitVec 32)) (v_probe3_6_~a.offset_BEFORE_CALL_10 (_ BitVec 32))) (or (not (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_10 (_ bv4 32)) v_arrayElimCell_24)) (exists ((v_prenex_1 (_ BitVec 32))) (and (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_10 (_ bv4 32)) v_prenex_1) (not (bvule (bvadd |c_~#a6~0.offset| (_ bv4 32)) v_prenex_1)))) (exists ((v_prenex_1 (_ BitVec 32))) (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_10 (_ bv4 32)) v_prenex_1)))) .cse3) (or .cse0 (forall ((v_arrayElimCell_23 (_ BitVec 32)) (v_probe3_6_~a.offset_BEFORE_CALL_10 (_ BitVec 32))) (or (bvule (bvadd |c_~#a6~0.offset| (_ bv4 32)) v_arrayElimCell_23) (exists ((v_prenex_1 (_ BitVec 32))) (and (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_10 (_ bv4 32)) v_prenex_1) (not (bvule (bvadd |c_~#a6~0.offset| (_ bv4 32)) v_prenex_1)))) (exists ((v_prenex_1 (_ BitVec 32))) (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_10 (_ bv4 32)) v_prenex_1)) (not (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_10 (_ bv4 32)) v_arrayElimCell_23))))))) is different from false [2020-11-30 00:59:23,739 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:23,876 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:24,027 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:24,152 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:24,153 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:24,154 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:24,155 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:24,163 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:59:24,164 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:24,166 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:24,167 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:24,168 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:24,169 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:24,170 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:59:24,171 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:59:26,241 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (forall ((v_arrayElimCell_23 (_ BitVec 32))) (bvule (bvadd |c_~#a6~0.offset| (_ bv4 32)) v_arrayElimCell_23))) (.cse0 (not (bvule |c_~#a6~0.offset| (bvadd |c_~#a6~0.offset| (_ bv4 32))))) (.cse1 (forall ((v_arrayElimCell_23 (_ BitVec 32)) (v_probe3_6_~a.offset_BEFORE_CALL_11 (_ BitVec 32))) (or (bvule (bvadd |c_~#a6~0.offset| (_ bv4 32)) v_arrayElimCell_23) (not (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_11 (_ bv4 32)) v_arrayElimCell_23)) (exists ((v_prenex_3 (_ BitVec 32))) (and (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_11 (_ bv4 32)) v_prenex_3) (not (bvule (bvadd |c_~#a6~0.offset| (_ bv4 32)) v_prenex_3))))))) (.cse3 (exists ((v_prenex_4 (_ BitVec 32))) (not (bvule (bvadd |c_~#a6~0.offset| (_ bv4 32)) v_prenex_4))))) (and (or (forall ((v_arrayElimCell_23 (_ BitVec 32)) (v_probe3_6_~a.offset_BEFORE_CALL_11 (_ BitVec 32))) (or (bvule (bvadd |c_~#a6~0.offset| (_ bv4 32)) v_arrayElimCell_23) (exists ((v_prenex_3 (_ BitVec 32))) (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_11 (_ bv4 32)) v_prenex_3)) (not (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_11 (_ bv4 32)) v_arrayElimCell_23)) (exists ((v_prenex_3 (_ BitVec 32))) (and (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_11 (_ bv4 32)) v_prenex_3) (not (bvule (bvadd |c_~#a6~0.offset| (_ bv4 32)) v_prenex_3)))))) .cse0) (or .cse0 .cse1) (or .cse0 (forall ((v_arrayElimCell_24 (_ BitVec 32)) (v_probe3_6_~a.offset_BEFORE_CALL_11 (_ BitVec 32))) (or (not (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_11 (_ bv4 32)) v_arrayElimCell_24)) (exists ((v_prenex_3 (_ BitVec 32))) (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_11 (_ bv4 32)) v_prenex_3)) (exists ((v_prenex_3 (_ BitVec 32))) (and (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_11 (_ bv4 32)) v_prenex_3) (not (bvule (bvadd |c_~#a6~0.offset| (_ bv4 32)) v_prenex_3)))))) .cse2) (or (forall ((v_arrayElimCell_24 (_ BitVec 32)) (v_probe3_6_~a.offset_BEFORE_CALL_11 (_ BitVec 32))) (or (not (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_11 (_ bv4 32)) v_arrayElimCell_24)) (exists ((v_prenex_3 (_ BitVec 32))) (and (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_11 (_ bv4 32)) v_prenex_3) (not (bvule (bvadd |c_~#a6~0.offset| (_ bv4 32)) v_prenex_3)))))) .cse0 .cse2 .cse3) (or .cse0 .cse1 .cse3))) is different from false [2020-11-30 00:59:26,284 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:26,454 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:26,603 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:26,739 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:26,740 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:26,741 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:26,742 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:26,772 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:59:26,773 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:26,774 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:26,775 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:26,776 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:59:26,777 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:26,778 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:26,782 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:59:28,845 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (exists ((v_prenex_6 (_ BitVec 32))) (not (bvule (bvadd |c_~#a6~0.offset| (_ bv4 32)) v_prenex_6)))) (.cse2 (forall ((v_arrayElimCell_23 (_ BitVec 32)) (v_probe3_6_~a.offset_BEFORE_CALL_12 (_ BitVec 32))) (or (bvule (bvadd |c_~#a6~0.offset| (_ bv4 32)) v_arrayElimCell_23) (not (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_12 (_ bv4 32)) v_arrayElimCell_23)) (exists ((v_prenex_5 (_ BitVec 32))) (and (not (bvule (bvadd |c_~#a6~0.offset| (_ bv4 32)) v_prenex_5)) (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_12 (_ bv4 32)) v_prenex_5)))))) (.cse0 (not (bvule |c_~#a6~0.offset| (bvadd |c_~#a6~0.offset| (_ bv4 32))))) (.cse3 (forall ((v_arrayElimCell_23 (_ BitVec 32))) (bvule (bvadd |c_~#a6~0.offset| (_ bv4 32)) v_arrayElimCell_23)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (forall ((v_arrayElimCell_23 (_ BitVec 32)) (v_probe3_6_~a.offset_BEFORE_CALL_12 (_ BitVec 32))) (or (bvule (bvadd |c_~#a6~0.offset| (_ bv4 32)) v_arrayElimCell_23) (exists ((v_prenex_5 (_ BitVec 32))) (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_12 (_ bv4 32)) v_prenex_5)) (not (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_12 (_ bv4 32)) v_arrayElimCell_23)) (exists ((v_prenex_5 (_ BitVec 32))) (and (not (bvule (bvadd |c_~#a6~0.offset| (_ bv4 32)) v_prenex_5)) (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_12 (_ bv4 32)) v_prenex_5)))))) (or (forall ((v_arrayElimCell_24 (_ BitVec 32)) (v_probe3_6_~a.offset_BEFORE_CALL_12 (_ BitVec 32))) (or (not (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_12 (_ bv4 32)) v_arrayElimCell_24)) (exists ((v_prenex_5 (_ BitVec 32))) (and (not (bvule (bvadd |c_~#a6~0.offset| (_ bv4 32)) v_prenex_5)) (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_12 (_ bv4 32)) v_prenex_5))))) .cse0 .cse1 .cse3) (or .cse0 .cse2) (or .cse0 (forall ((v_arrayElimCell_24 (_ BitVec 32)) (v_probe3_6_~a.offset_BEFORE_CALL_12 (_ BitVec 32))) (or (not (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_12 (_ bv4 32)) v_arrayElimCell_24)) (exists ((v_prenex_5 (_ BitVec 32))) (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_12 (_ bv4 32)) v_prenex_5)) (exists ((v_prenex_5 (_ BitVec 32))) (and (not (bvule (bvadd |c_~#a6~0.offset| (_ bv4 32)) v_prenex_5)) (bvule (bvadd v_probe3_6_~a.offset_BEFORE_CALL_12 (_ bv4 32)) v_prenex_5))))) .cse3))) is different from false [2020-11-30 00:59:28,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:59:28,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1508403397] [2020-11-30 00:59:28,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:59:28,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2020-11-30 00:59:28,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717457386] [2020-11-30 00:59:28,909 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-30 00:59:28,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:59:28,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-30 00:59:28,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-11-30 00:59:28,911 INFO L87 Difference]: Start difference. First operand 53 states and 52 transitions. Second operand 14 states. [2020-11-30 00:59:29,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:59:29,828 INFO L93 Difference]: Finished difference Result 52 states and 51 transitions. [2020-11-30 00:59:29,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-30 00:59:29,829 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 38 [2020-11-30 00:59:29,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:59:29,830 INFO L225 Difference]: With dead ends: 52 [2020-11-30 00:59:29,830 INFO L226 Difference]: Without dead ends: 52 [2020-11-30 00:59:29,831 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 50 SyntacticMatches, 13 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2020-11-30 00:59:29,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-30 00:59:29,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-11-30 00:59:29,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-30 00:59:29,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 51 transitions. [2020-11-30 00:59:29,834 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 51 transitions. Word has length 38 [2020-11-30 00:59:29,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:59:29,834 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 51 transitions. [2020-11-30 00:59:29,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-30 00:59:29,834 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 51 transitions. [2020-11-30 00:59:29,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-30 00:59:29,835 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:59:29,835 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:59:30,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2020-11-30 00:59:30,047 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, probe3_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err1REQUIRES_VIOLATION, probe3_6Err0REQUIRES_VIOLATION, probe3_6Err5ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err7ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err6ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-30 00:59:30,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:59:30,048 INFO L82 PathProgramCache]: Analyzing trace with hash -2074225181, now seen corresponding path program 1 times [2020-11-30 00:59:30,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:59:30,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [612445645] [2020-11-30 00:59:30,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2020-11-30 00:59:30,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:59:30,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-30 00:59:30,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:59:30,290 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-11-30 00:59:30,290 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:59:30,293 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:59:30,293 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-30 00:59:30,293 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-11-30 00:59:30,390 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7 [2020-11-30 00:59:30,390 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:59:30,393 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:59:30,393 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-30 00:59:30,393 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2020-11-30 00:59:30,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:59:30,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:59:30,548 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 28 treesize of output 24 [2020-11-30 00:59:30,554 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2020-11-30 00:59:30,562 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:59:30,562 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2020-11-30 00:59:30,562 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:10 [2020-11-30 00:59:30,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:59:30,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [612445645] [2020-11-30 00:59:30,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:59:30,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 10 [2020-11-30 00:59:30,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315400907] [2020-11-30 00:59:30,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-30 00:59:30,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:59:30,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-30 00:59:30,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-11-30 00:59:30,618 INFO L87 Difference]: Start difference. First operand 52 states and 51 transitions. Second operand 11 states. [2020-11-30 00:59:31,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:59:31,010 INFO L93 Difference]: Finished difference Result 51 states and 50 transitions. [2020-11-30 00:59:31,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-30 00:59:31,011 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 39 [2020-11-30 00:59:31,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:59:31,011 INFO L225 Difference]: With dead ends: 51 [2020-11-30 00:59:31,011 INFO L226 Difference]: Without dead ends: 51 [2020-11-30 00:59:31,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2020-11-30 00:59:31,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-11-30 00:59:31,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-11-30 00:59:31,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-11-30 00:59:31,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 50 transitions. [2020-11-30 00:59:31,015 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 50 transitions. Word has length 39 [2020-11-30 00:59:31,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:59:31,015 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 50 transitions. [2020-11-30 00:59:31,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-30 00:59:31,016 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 50 transitions. [2020-11-30 00:59:31,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-30 00:59:31,017 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:59:31,017 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:59:31,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2020-11-30 00:59:31,231 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, probe3_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err1REQUIRES_VIOLATION, probe3_6Err0REQUIRES_VIOLATION, probe3_6Err5ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err7ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err6ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-30 00:59:31,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:59:31,231 INFO L82 PathProgramCache]: Analyzing trace with hash 123529298, now seen corresponding path program 1 times [2020-11-30 00:59:31,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:59:31,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106008529] [2020-11-30 00:59:31,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2020-11-30 00:59:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:59:31,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-30 00:59:31,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:59:31,770 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-11-30 00:59:31,771 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:59:31,787 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:59:31,788 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-30 00:59:31,788 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2020-11-30 00:59:32,056 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 11 [2020-11-30 00:59:32,057 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:59:32,068 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:59:32,068 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-30 00:59:32,069 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:23, output treesize:8 [2020-11-30 00:59:32,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:59:32,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:59:32,640 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 28 treesize of output 24 [2020-11-30 00:59:32,641 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 00:59:32,683 INFO L625 ElimStorePlain]: treesize reduction 13, result has 53.6 percent of original size [2020-11-30 00:59:32,683 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 00:59:32,683 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:15 [2020-11-30 00:59:32,745 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:32,746 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:32,754 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:32,755 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:32,763 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:32,764 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:32,769 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:32,771 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:32,783 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:32,939 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:32,941 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:32,942 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:59:33,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:59:33,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106008529] [2020-11-30 00:59:33,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:59:33,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 11] imperfect sequences [] total 23 [2020-11-30 00:59:33,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347276493] [2020-11-30 00:59:33,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-11-30 00:59:33,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:59:33,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-11-30 00:59:33,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2020-11-30 00:59:33,060 INFO L87 Difference]: Start difference. First operand 51 states and 50 transitions. Second operand 24 states. [2020-11-30 00:59:34,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:59:34,598 INFO L93 Difference]: Finished difference Result 50 states and 49 transitions. [2020-11-30 00:59:34,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-30 00:59:34,606 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 40 [2020-11-30 00:59:34,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:59:34,607 INFO L225 Difference]: With dead ends: 50 [2020-11-30 00:59:34,607 INFO L226 Difference]: Without dead ends: 50 [2020-11-30 00:59:34,608 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 54 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=223, Invalid=899, Unknown=0, NotChecked=0, Total=1122 [2020-11-30 00:59:34,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-11-30 00:59:34,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-11-30 00:59:34,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-11-30 00:59:34,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 49 transitions. [2020-11-30 00:59:34,611 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 49 transitions. Word has length 40 [2020-11-30 00:59:34,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:59:34,611 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 49 transitions. [2020-11-30 00:59:34,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-11-30 00:59:34,611 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 49 transitions. [2020-11-30 00:59:34,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-30 00:59:34,612 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:59:34,613 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:59:34,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2020-11-30 00:59:34,824 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, probe3_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err1REQUIRES_VIOLATION, probe3_6Err0REQUIRES_VIOLATION, probe3_6Err5ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err7ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err6ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe3_6Err3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-30 00:59:34,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:59:34,824 INFO L82 PathProgramCache]: Analyzing trace with hash -465558587, now seen corresponding path program 1 times [2020-11-30 00:59:34,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:59:34,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [419211515] [2020-11-30 00:59:34,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/mathsat Starting monitored process 17 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with mathsat -unsat_core_generation=3 [2020-11-30 00:59:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:59:35,070 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:59:35,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:59:35,145 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:59:35,192 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-30 00:59:35,193 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:59:35,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3 [2020-11-30 00:59:35,426 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 11bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2020-11-30 00:59:35,427 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 6bv32 could not be translated for associated CType STRUCT~~A?p~*VOID# [2020-11-30 00:59:35,428 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 5bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2020-11-30 00:59:35,428 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 10bv32 could not be translated for associated CType STRUCT~~A?p~*VOID# [2020-11-30 00:59:35,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:59:35 BoogieIcfgContainer [2020-11-30 00:59:35,462 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:59:35,462 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:59:35,463 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:59:35,463 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:59:35,463 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:58:09" (3/4) ... [2020-11-30 00:59:35,465 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 00:59:35,478 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 6bv32 could not be translated for associated CType STRUCT~~A?p~*VOID# [2020-11-30 00:59:35,483 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 5bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2020-11-30 00:59:35,483 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 10bv32 could not be translated for associated CType STRUCT~~A?p~*VOID# [2020-11-30 00:59:35,484 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 11bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2020-11-30 00:59:35,527 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_63b2ed43-d851-4772-863b-3db74ca78b8a/bin/uautomizer/witness.graphml [2020-11-30 00:59:35,527 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:59:35,528 INFO L168 Benchmark]: Toolchain (without parser) took 90328.81 ms. Allocated memory was 65.0 MB in the beginning and 186.6 MB in the end (delta: 121.6 MB). Free memory was 43.8 MB in the beginning and 136.8 MB in the end (delta: -93.0 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:59:35,529 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 65.0 MB. Free memory is still 46.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:59:35,529 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1315.06 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 43.6 MB in the beginning and 49.2 MB in the end (delta: -5.6 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:59:35,530 INFO L168 Benchmark]: Boogie Preprocessor took 171.21 ms. Allocated memory is still 81.8 MB. Free memory was 49.2 MB in the beginning and 44.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:59:35,530 INFO L168 Benchmark]: RCFGBuilder took 2630.76 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 44.1 MB in the beginning and 67.0 MB in the end (delta: -22.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:59:35,531 INFO L168 Benchmark]: TraceAbstraction took 86134.99 ms. Allocated memory was 100.7 MB in the beginning and 186.6 MB in the end (delta: 86.0 MB). Free memory was 66.3 MB in the beginning and 140.0 MB in the end (delta: -73.7 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:59:35,531 INFO L168 Benchmark]: Witness Printer took 64.61 ms. Allocated memory is still 186.6 MB. Free memory was 140.0 MB in the beginning and 136.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:59:35,533 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 65.0 MB. Free memory is still 46.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1315.06 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 43.6 MB in the beginning and 49.2 MB in the end (delta: -5.6 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 171.21 ms. Allocated memory is still 81.8 MB. Free memory was 49.2 MB in the beginning and 44.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2630.76 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 44.1 MB in the beginning and 67.0 MB in the end (delta: -22.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 86134.99 ms. Allocated memory was 100.7 MB in the beginning and 186.6 MB in the end (delta: 86.0 MB). Free memory was 66.3 MB in the beginning and 140.0 MB in the end (delta: -73.7 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. * Witness Printer took 64.61 ms. Allocated memory is still 186.6 MB. Free memory was 140.0 MB in the beginning and 136.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 11bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 6bv32 could not be translated for associated CType STRUCT~~A?p~*VOID# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 5bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 10bv32 could not be translated for associated CType STRUCT~~A?p~*VOID# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 6bv32 could not be translated for associated CType STRUCT~~A?p~*VOID# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 5bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 10bv32 could not be translated for associated CType STRUCT~~A?p~*VOID# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 11bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 782]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L784] struct A a6; VAL [\old(a6)=null, \old(a6)=null, \old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, a6={3:0}, ldv_global_msg_list={7:0}] [L793] CALL entry_point() VAL [a6={3:0}, ldv_global_msg_list={7:0}] [L786] CALL, EXPR probe3_6(&a6) VAL [a={3:0}, a6={3:0}, ldv_global_msg_list={7:0}] [L764] int ret = - -3; VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={7:0}, ret=3] [L765] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, a6={3:0}, ldv_global_msg_list={7:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); VAL [\old(size)=4, \result={1:0}, a6={3:0}, ldv_global_msg_list={7:0}, malloc(size)={1:0}, size=4] [L765] RET, EXPR ldv_malloc(sizeof(int)) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={7:0}, ldv_malloc(sizeof(int))={1:0}, ret=3] [L765] int *p = (int *)ldv_malloc(sizeof(int)); [L766] COND FALSE !(p==0) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={7:0}, p={1:0}, ret=3] [L768] CALL, EXPR f6() VAL [a6={3:0}, ldv_global_msg_list={7:0}] [L758] return __VERIFIER_nondet_int(); [L768] RET, EXPR f6() VAL [a={3:0}, a={3:0}, a6={3:0}, f6()=0, ldv_global_msg_list={7:0}, p={1:0}, ret=3] [L768] ret = f6() [L769] COND FALSE !(ret<0) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={7:0}, p={1:0}, ret=0] [L771] CALL, EXPR g6() VAL [a6={3:0}, ldv_global_msg_list={7:0}] [L761] return __VERIFIER_nondet_int(); [L771] RET, EXPR g6() VAL [a={3:0}, a={3:0}, a6={3:0}, g6()=0, ldv_global_msg_list={7:0}, p={1:0}, ret=0] [L771] ret = g6() [L772] COND FALSE !(ret<0) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={7:0}, p={1:0}, ret=0] [L774] a->p = p VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={7:0}, p={1:0}, ret=0] [L775] free(p) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={7:0}, p={1:0}, ret=0] [L775] free(p) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={7:0}, p={1:0}, ret=0] [L775] free(p) [L776] return 0; VAL [\result=0, a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={7:0}, p={1:0}, ret=0] [L786] RET, EXPR probe3_6(&a6) VAL [a6={3:0}, ldv_global_msg_list={7:0}, probe3_6(&a6)=0] [L786] int ret = probe3_6(&a6); [L787] COND TRUE ret==0 VAL [a6={3:0}, ldv_global_msg_list={7:0}, ret=0] [L788] CALL disconnect_6(&a6) VAL [a={3:0}, a6={3:0}, ldv_global_msg_list={7:0}] [L782] EXPR a->p VAL [a={3:0}, a={3:0}, a->p={1:0}, a6={3:0}, ldv_global_msg_list={7:0}] [L782] free(a->p) VAL [a={3:0}, a={3:0}, a->p={1:0}, a6={3:0}, ldv_global_msg_list={7:0}] [L782] free(a->p) VAL [a={3:0}, a={3:0}, a->p={1:0}, a6={3:0}, ldv_global_msg_list={7:0}] [L782] free(a->p) VAL [a={3:0}, a={3:0}, a->p={1:0}, a6={3:0}, ldv_global_msg_list={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 51 procedures, 379 locations, 86 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 85.9s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 55.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 788 SDtfs, 1334 SDslu, 2373 SDs, 0 SdLazy, 2038 SolverSat, 391 SolverUnsat, 13 SolverUnknown, 0 SolverNotchecked, 32.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 878 GetRequests, 642 SyntacticMatches, 46 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 787 ImplicationChecksByTransitivity, 39.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=139occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 15 MinimizatonAttempts, 92 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 22.8s InterpolantComputationTime, 456 NumberOfCodeBlocks, 456 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 800 ConstructedInterpolants, 76 QuantifiedInterpolants, 169399 SizeOfPredicates, 90 NumberOfNonLiveVariables, 1789 ConjunctsInSsa, 168 ConjunctsInUnsatCore, 30 InterpolantComputations, 30 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...