./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.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_d618bfc9-67a3-4940-9da7-7938651f5405/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/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 bb53649e57c73811eb036860baf1102917fa8259 .................................................................................................................................. 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_d618bfc9-67a3-4940-9da7-7938651f5405/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/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 bb53649e57c73811eb036860baf1102917fa8259 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:25:06,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:25:06,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:25:06,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:25:06,580 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:25:06,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:25:06,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:25:06,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:25:06,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:25:06,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:25:06,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:25:06,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:25:06,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:25:06,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:25:06,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:25:06,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:25:06,606 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:25:06,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:25:06,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:25:06,615 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:25:06,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:25:06,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:25:06,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:25:06,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:25:06,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:25:06,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:25:06,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:25:06,641 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:25:06,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:25:06,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:25:06,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:25:06,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:25:06,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:25:06,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:25:06,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:25:06,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:25:06,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:25:06,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:25:06,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:25:06,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:25:06,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:25:06,663 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-29 19:25:06,709 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:25:06,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:25:06,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:25:06,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:25:06,713 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:25:06,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:25:06,713 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:25:06,714 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:25:06,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:25:06,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:25:06,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:25:06,716 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 19:25:06,716 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 19:25:06,716 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 19:25:06,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:25:06,717 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-29 19:25:06,717 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:25:06,717 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:25:06,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:25:06,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:25:06,718 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:25:06,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:25:06,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:25:06,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:25:06,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:25:06,720 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:25:06,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:25:06,720 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:25:06,720 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_d618bfc9-67a3-4940-9da7-7938651f5405/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb53649e57c73811eb036860baf1102917fa8259 [2020-11-29 19:25:06,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:25:07,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:25:07,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:25:07,042 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:25:07,043 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:25:07,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2020-11-29 19:25:07,126 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/bin/uautomizer/data/adc08177c/7107c1a9523241ef802d92eecd7c0647/FLAG018c81676 [2020-11-29 19:25:07,718 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:25:07,718 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2020-11-29 19:25:07,755 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/bin/uautomizer/data/adc08177c/7107c1a9523241ef802d92eecd7c0647/FLAG018c81676 [2020-11-29 19:25:08,004 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/bin/uautomizer/data/adc08177c/7107c1a9523241ef802d92eecd7c0647 [2020-11-29 19:25:08,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:25:08,010 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-29 19:25:08,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:25:08,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:25:08,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:25:08,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:25:08" (1/1) ... [2020-11-29 19:25:08,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@618e86fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:08, skipping insertion in model container [2020-11-29 19:25:08,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:25:08" (1/1) ... [2020-11-29 19:25:08,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:25:08,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:25:08,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:25:08,556 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) [2020-11-29 19:25:08,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@50a1708f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:08, skipping insertion in model container [2020-11-29 19:25:08,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:25:08,557 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-11-29 19:25:08,560 INFO L168 Benchmark]: Toolchain (without parser) took 548.23 ms. Allocated memory is still 90.2 MB. Free memory was 57.8 MB in the beginning and 63.3 MB in the end (delta: -5.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:25:08,561 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 90.2 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:25:08,562 INFO L168 Benchmark]: CACSL2BoogieTranslator took 544.89 ms. Allocated memory is still 90.2 MB. Free memory was 57.6 MB in the beginning and 63.3 MB in the end (delta: -5.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:25:08,564 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 90.2 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 544.89 ms. Allocated memory is still 90.2 MB. Free memory was 57.6 MB in the beginning and 63.3 MB in the end (delta: -5.7 MB). Peak memory consumption was 10.5 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 [2020-11-29 19:25:11,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:25:11,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:25:11,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:25:11,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:25:11,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:25:11,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:25:11,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:25:11,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:25:11,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:25:11,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:25:11,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:25:11,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:25:11,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:25:11,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:25:11,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:25:11,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:25:11,140 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:25:11,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:25:11,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:25:11,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:25:11,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:25:11,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:25:11,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:25:11,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:25:11,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:25:11,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:25:11,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:25:11,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:25:11,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:25:11,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:25:11,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:25:11,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:25:11,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:25:11,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:25:11,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:25:11,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:25:11,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:25:11,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:25:11,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:25:11,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:25:11,194 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-11-29 19:25:11,243 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:25:11,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:25:11,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:25:11,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:25:11,247 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:25:11,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:25:11,247 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:25:11,247 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:25:11,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:25:11,248 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:25:11,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:25:11,250 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 19:25:11,250 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 19:25:11,250 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 19:25:11,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:25:11,251 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-29 19:25:11,251 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 19:25:11,251 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 19:25:11,251 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:25:11,252 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:25:11,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:25:11,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:25:11,252 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:25:11,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:25:11,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:25:11,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:25:11,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:25:11,254 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 19:25:11,254 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 19:25:11,254 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:25:11,254 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 19:25:11,255 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_d618bfc9-67a3-4940-9da7-7938651f5405/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb53649e57c73811eb036860baf1102917fa8259 [2020-11-29 19:25:11,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:25:11,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:25:11,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:25:11,758 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:25:11,759 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:25:11,760 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2020-11-29 19:25:11,833 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/bin/uautomizer/data/5a33bfe4d/236578ea6b10429688cd32e6c09fb295/FLAG29f1c8bfa [2020-11-29 19:25:12,634 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:25:12,635 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2020-11-29 19:25:12,651 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/bin/uautomizer/data/5a33bfe4d/236578ea6b10429688cd32e6c09fb295/FLAG29f1c8bfa [2020-11-29 19:25:12,848 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/bin/uautomizer/data/5a33bfe4d/236578ea6b10429688cd32e6c09fb295 [2020-11-29 19:25:12,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:25:12,856 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-29 19:25:12,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:25:12,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:25:12,863 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:25:12,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:25:12" (1/1) ... [2020-11-29 19:25:12,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51f0346d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:12, skipping insertion in model container [2020-11-29 19:25:12,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:25:12" (1/1) ... [2020-11-29 19:25:12,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:25:12,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:25:13,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:25:13,565 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-29 19:25:13,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:25:13,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:25:13,691 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:25:13,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:25:13,872 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:25:13,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:13 WrapperNode [2020-11-29 19:25:13,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:25:13,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:25:13,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:25:13,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:25:13,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:13" (1/1) ... [2020-11-29 19:25:13,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:13" (1/1) ... [2020-11-29 19:25:13,916 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:13" (1/1) ... [2020-11-29 19:25:13,917 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:13" (1/1) ... [2020-11-29 19:25:13,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:13" (1/1) ... [2020-11-29 19:25:13,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:13" (1/1) ... [2020-11-29 19:25:13,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:13" (1/1) ... [2020-11-29 19:25:13,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:25:13,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:25:13,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:25:13,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:25:13,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/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 [2020-11-29 19:25:14,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-29 19:25:14,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:25:14,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-11-29 19:25:14,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-11-29 19:25:14,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-29 19:25:14,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-29 19:25:14,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-29 19:25:14,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-29 19:25:14,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-29 19:25:14,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2020-11-29 19:25:14,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2020-11-29 19:25:14,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-11-29 19:25:14,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-11-29 19:25:14,099 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-11-29 19:25:14,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-11-29 19:25:14,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-11-29 19:25:14,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-11-29 19:25:14,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-11-29 19:25:14,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-11-29 19:25:14,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2020-11-29 19:25:14,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2020-11-29 19:25:14,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2020-11-29 19:25:14,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2020-11-29 19:25:14,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2020-11-29 19:25:14,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2020-11-29 19:25:14,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2020-11-29 19:25:14,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2020-11-29 19:25:14,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2020-11-29 19:25:14,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2020-11-29 19:25:14,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2020-11-29 19:25:14,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2020-11-29 19:25:14,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2020-11-29 19:25:14,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2020-11-29 19:25:14,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2020-11-29 19:25:14,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2020-11-29 19:25:14,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2020-11-29 19:25:14,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2020-11-29 19:25:14,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2020-11-29 19:25:14,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2020-11-29 19:25:14,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2020-11-29 19:25:14,102 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-11-29 19:25:14,102 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-11-29 19:25:14,103 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2020-11-29 19:25:14,103 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-29 19:25:14,103 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-11-29 19:25:14,103 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-11-29 19:25:14,103 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-11-29 19:25:14,103 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-29 19:25:14,103 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-29 19:25:14,104 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-29 19:25:14,104 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-29 19:25:14,104 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-29 19:25:14,104 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-29 19:25:14,104 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-29 19:25:14,104 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-29 19:25:14,104 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-29 19:25:14,105 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-29 19:25:14,105 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-29 19:25:14,105 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-29 19:25:14,105 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-29 19:25:14,105 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-29 19:25:14,105 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-29 19:25:14,105 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-29 19:25:14,105 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-29 19:25:14,106 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-29 19:25:14,106 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-29 19:25:14,106 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-29 19:25:14,106 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-29 19:25:14,106 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-29 19:25:14,106 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-29 19:25:14,106 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-29 19:25:14,107 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-29 19:25:14,107 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-29 19:25:14,107 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-29 19:25:14,107 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-29 19:25:14,107 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-29 19:25:14,107 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-29 19:25:14,107 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-29 19:25:14,108 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-29 19:25:14,108 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-29 19:25:14,108 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-29 19:25:14,108 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-29 19:25:14,108 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-29 19:25:14,108 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-29 19:25:14,108 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-29 19:25:14,109 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-29 19:25:14,109 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-29 19:25:14,109 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-29 19:25:14,109 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-29 19:25:14,109 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-29 19:25:14,109 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-29 19:25:14,109 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-29 19:25:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-29 19:25:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-29 19:25:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-29 19:25:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-29 19:25:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-29 19:25:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-29 19:25:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-29 19:25:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-29 19:25:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-29 19:25:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-29 19:25:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-29 19:25:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-29 19:25:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-29 19:25:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-29 19:25:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-29 19:25:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-29 19:25:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-29 19:25:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-29 19:25:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-29 19:25:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-29 19:25:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-29 19:25:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-29 19:25:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-29 19:25:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-29 19:25:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-29 19:25:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-29 19:25:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-29 19:25:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-29 19:25:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-29 19:25:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-29 19:25:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-29 19:25:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-29 19:25:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-29 19:25:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-29 19:25:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-29 19:25:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-29 19:25:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-29 19:25:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-29 19:25:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-29 19:25:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-29 19:25:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-29 19:25:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-29 19:25:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-29 19:25:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-29 19:25:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-29 19:25:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-29 19:25:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-29 19:25:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-29 19:25:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-29 19:25:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-29 19:25:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-29 19:25:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-29 19:25:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-29 19:25:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-29 19:25:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-29 19:25:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-29 19:25:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-29 19:25:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-29 19:25:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-29 19:25:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-29 19:25:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-29 19:25:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-29 19:25:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-11-29 19:25:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-29 19:25:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2020-11-29 19:25:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2020-11-29 19:25:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-11-29 19:25:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-11-29 19:25:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-11-29 19:25:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 19:25:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-11-29 19:25:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-11-29 19:25:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-11-29 19:25:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-29 19:25:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-11-29 19:25:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-11-29 19:25:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-11-29 19:25:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-29 19:25:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-11-29 19:25:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-11-29 19:25:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2020-11-29 19:25:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2020-11-29 19:25:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-11-29 19:25:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2020-11-29 19:25:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:25:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2020-11-29 19:25:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2020-11-29 19:25:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2020-11-29 19:25:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2020-11-29 19:25:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2020-11-29 19:25:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 19:25:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 19:25:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2020-11-29 19:25:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2020-11-29 19:25:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-11-29 19:25:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2020-11-29 19:25:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2020-11-29 19:25:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2020-11-29 19:25:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2020-11-29 19:25:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2020-11-29 19:25:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2020-11-29 19:25:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2020-11-29 19:25:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2020-11-29 19:25:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2020-11-29 19:25:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2020-11-29 19:25:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2020-11-29 19:25:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-11-29 19:25:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-11-29 19:25:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-11-29 19:25:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2020-11-29 19:25:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-29 19:25:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-29 19:25:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:25:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-29 19:25:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:25:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-11-29 19:25:14,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-11-29 19:25:14,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-11-29 19:25:14,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2020-11-29 19:25:14,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2020-11-29 19:25:14,920 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-29 19:25:15,456 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-29 19:25:16,012 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:25:16,015 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-11-29 19:25:16,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:25:16 BoogieIcfgContainer [2020-11-29 19:25:16,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:25:16,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:25:16,021 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:25:16,025 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:25:16,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:25:12" (1/3) ... [2020-11-29 19:25:16,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c43d87d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:25:16, skipping insertion in model container [2020-11-29 19:25:16,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:13" (2/3) ... [2020-11-29 19:25:16,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c43d87d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:25:16, skipping insertion in model container [2020-11-29 19:25:16,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:25:16" (3/3) ... [2020-11-29 19:25:16,030 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test18_1.i [2020-11-29 19:25:16,045 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:25:16,052 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 78 error locations. [2020-11-29 19:25:16,066 INFO L253 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2020-11-29 19:25:16,090 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:25:16,090 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-29 19:25:16,090 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:25:16,091 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:25:16,091 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:25:16,091 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:25:16,091 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:25:16,091 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:25:16,110 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2020-11-29 19:25:16,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 19:25:16,119 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:25:16,120 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:25:16,121 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, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-29 19:25:16,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:25:16,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1086874314, now seen corresponding path program 1 times [2020-11-29 19:25:16,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:25:16,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [100975496] [2020-11-29 19:25:16,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/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 [2020-11-29 19:25:16,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:25:16,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 19:25:16,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:25:16,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:25:16,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:25:16,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:25:16,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [100975496] [2020-11-29 19:25:16,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:25:16,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-29 19:25:16,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786479884] [2020-11-29 19:25:16,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 19:25:16,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:25:16,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:25:16,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:25:16,728 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 5 states. [2020-11-29 19:25:16,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:25:16,912 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2020-11-29 19:25:16,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:25:16,916 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-29 19:25:16,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:25:16,931 INFO L225 Difference]: With dead ends: 67 [2020-11-29 19:25:16,934 INFO L226 Difference]: Without dead ends: 64 [2020-11-29 19:25:16,936 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:25:16,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-11-29 19:25:16,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 42. [2020-11-29 19:25:16,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-29 19:25:16,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2020-11-29 19:25:16,997 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 17 [2020-11-29 19:25:16,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:25:16,997 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2020-11-29 19:25:16,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 19:25:16,998 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2020-11-29 19:25:17,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 19:25:17,002 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:25:17,002 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:25:17,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 19:25:17,223 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, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-29 19:25:17,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:25:17,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1465282647, now seen corresponding path program 1 times [2020-11-29 19:25:17,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:25:17,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [586062219] [2020-11-29 19:25:17,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/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 [2020-11-29 19:25:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:25:17,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 19:25:17,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:25:17,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:25:17,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:25:17,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:25:17,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [586062219] [2020-11-29 19:25:17,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:25:17,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 19:25:17,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965256347] [2020-11-29 19:25:17,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:25:17,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:25:17,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:25:17,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:25:17,605 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand 3 states. [2020-11-29 19:25:17,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:25:17,767 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2020-11-29 19:25:17,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:25:17,768 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-29 19:25:17,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:25:17,770 INFO L225 Difference]: With dead ends: 64 [2020-11-29 19:25:17,770 INFO L226 Difference]: Without dead ends: 61 [2020-11-29 19:25:17,771 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:25:17,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-11-29 19:25:17,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 50. [2020-11-29 19:25:17,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-11-29 19:25:17,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2020-11-29 19:25:17,787 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 17 [2020-11-29 19:25:17,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:25:17,787 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2020-11-29 19:25:17,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:25:17,788 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2020-11-29 19:25:17,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 19:25:17,790 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:25:17,790 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:25:18,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 19:25:18,004 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, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-29 19:25:18,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:25:18,005 INFO L82 PathProgramCache]: Analyzing trace with hash -666992135, now seen corresponding path program 1 times [2020-11-29 19:25:18,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:25:18,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1946933807] [2020-11-29 19:25:18,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/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 [2020-11-29 19:25:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:25:18,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 19:25:18,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:25:18,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:25:18,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:25:18,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:25:18,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1946933807] [2020-11-29 19:25:18,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:25:18,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-29 19:25:18,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940217893] [2020-11-29 19:25:18,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 19:25:18,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:25:18,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:25:18,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:25:18,338 INFO L87 Difference]: Start difference. First operand 50 states and 61 transitions. Second operand 6 states. [2020-11-29 19:25:18,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:25:18,474 INFO L93 Difference]: Finished difference Result 98 states and 119 transitions. [2020-11-29 19:25:18,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:25:18,476 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-11-29 19:25:18,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:25:18,478 INFO L225 Difference]: With dead ends: 98 [2020-11-29 19:25:18,478 INFO L226 Difference]: Without dead ends: 98 [2020-11-29 19:25:18,479 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-11-29 19:25:18,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-11-29 19:25:18,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 64. [2020-11-29 19:25:18,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-11-29 19:25:18,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 85 transitions. [2020-11-29 19:25:18,506 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 85 transitions. Word has length 18 [2020-11-29 19:25:18,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:25:18,506 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 85 transitions. [2020-11-29 19:25:18,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 19:25:18,507 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 85 transitions. [2020-11-29 19:25:18,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-29 19:25:18,508 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:25:18,508 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:25:18,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 19:25:18,731 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, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-29 19:25:18,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:25:18,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1630788241, now seen corresponding path program 1 times [2020-11-29 19:25:18,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:25:18,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1645051621] [2020-11-29 19:25:18,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/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 [2020-11-29 19:25:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:25:18,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 19:25:18,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:25:19,027 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 [2020-11-29 19:25:19,028 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:25:19,035 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:25:19,036 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 19:25:19,036 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-29 19:25:19,151 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:25:19,152 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 [2020-11-29 19:25:19,153 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:25:19,179 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2020-11-29 19:25:19,180 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. [2020-11-29 19:25:19,181 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:11 [2020-11-29 19:25:19,196 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:25:19,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:25:19,458 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:25:19,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1645051621] [2020-11-29 19:25:19,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 19:25:19,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2020-11-29 19:25:19,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069624234] [2020-11-29 19:25:19,460 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 19:25:19,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:25:19,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 19:25:19,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-11-29 19:25:19,461 INFO L87 Difference]: Start difference. First operand 64 states and 85 transitions. Second operand 8 states. [2020-11-29 19:26:12,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:26:12,608 INFO L93 Difference]: Finished difference Result 147 states and 176 transitions. [2020-11-29 19:26:12,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-29 19:26:12,609 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-11-29 19:26:12,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:26:12,612 INFO L225 Difference]: With dead ends: 147 [2020-11-29 19:26:12,612 INFO L226 Difference]: Without dead ends: 147 [2020-11-29 19:26:12,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=49, Invalid=131, Unknown=2, NotChecked=0, Total=182 [2020-11-29 19:26:12,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-11-29 19:26:12,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 76. [2020-11-29 19:26:12,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-11-29 19:26:12,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 99 transitions. [2020-11-29 19:26:12,628 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 99 transitions. Word has length 23 [2020-11-29 19:26:12,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:26:12,628 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 99 transitions. [2020-11-29 19:26:12,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 19:26:12,629 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 99 transitions. [2020-11-29 19:26:12,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-29 19:26:12,630 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:26:12,630 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:26:12,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 19:26:12,848 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, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-29 19:26:12,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:26:12,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1630788242, now seen corresponding path program 1 times [2020-11-29 19:26:12,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:26:12,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [776696105] [2020-11-29 19:26:12,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/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 [2020-11-29 19:26:13,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:26:13,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 20 conjunts are in the unsatisfiable core [2020-11-29 19:26:13,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:26:13,092 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 [2020-11-29 19:26:13,092 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:26:13,110 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:26:13,120 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 [2020-11-29 19:26:13,120 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 19:26:13,136 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:26:13,136 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 19:26:13,136 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2020-11-29 19:26:15,417 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:26:15,417 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 13 treesize of output 17 [2020-11-29 19:26:15,418 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:26:15,442 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:26:15,450 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2020-11-29 19:26:15,451 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 19:26:15,479 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:26:15,490 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 19:26:15,491 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:12 [2020-11-29 19:26:15,539 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:26:15,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:26:15,756 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 12 [2020-11-29 19:26:15,826 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 19:26:17,868 WARN L838 $PredicateComparison]: unable to prove that (and (or (let ((.cse0 (bvmul c_entry_point_~i~0 (_ bv4 32)))) (bvule (bvadd c_entry_point_~array~0.offset .cse0) (bvadd c_entry_point_~array~0.offset .cse0 (_ bv4 32)))) (forall ((|v_ldv_malloc_#t~malloc12.base_23| (_ BitVec 32))) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_23|) (_ bv0 1))))) (forall ((v_ldv_malloc_~size_28 (_ BitVec 32)) (|v_ldv_malloc_#t~malloc12.base_23| (_ BitVec 32))) (or (bvule (bvadd c_entry_point_~array~0.offset (bvmul c_entry_point_~i~0 (_ bv4 32)) (_ bv4 32)) (select (store |c_#length| |v_ldv_malloc_#t~malloc12.base_23| v_ldv_malloc_~size_28) c_entry_point_~array~0.base)) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_23|) (_ bv0 1)))))) is different from false [2020-11-29 19:26:17,892 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 19:26:17,898 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 19:26:17,902 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 19:26:17,917 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 19:26:17,926 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 19:26:28,371 WARN L193 SmtUtils]: Spent 6.32 s on a formula simplification. DAG size of input: 38 DAG size of output: 32 [2020-11-29 19:26:28,400 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 19:26:30,513 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((ldv_malloc_~size (_ BitVec 32)) (v_entry_point_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~array~0.base_BEFORE_CALL_4 (_ BitVec 32)) (|v_ldv_malloc_#t~malloc12.base_24| (_ BitVec 32)) (v_entry_point_~array~0.offset_BEFORE_CALL_2 (_ BitVec 32))) (let ((.cse1 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse1 v_entry_point_~array~0.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (bvule .cse0 (select (store |c_#length| |v_ldv_malloc_#t~malloc12.base_24| ldv_malloc_~size) v_entry_point_~array~0.base_BEFORE_CALL_4)) (exists ((v_ldv_malloc_~size_28 (_ BitVec 32)) (|v_ldv_malloc_#t~malloc12.base_23| (_ BitVec 32))) (and (not (bvule (bvadd (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_entry_point_~array~0.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_23| v_ldv_malloc_~size_28) v_entry_point_~array~0.base_BEFORE_CALL_4))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_23|) (_ bv0 1)))) (not (bvule (bvadd .cse1 v_entry_point_~array~0.offset_BEFORE_CALL_2) .cse0)) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_24|) (_ bv0 1))))))) (or (forall ((|v_ldv_malloc_#t~malloc12.base_24| (_ BitVec 32))) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_24|) (_ bv0 1)))) (exists ((v_prenex_1 (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_1))))) is different from true [2020-11-29 19:26:30,535 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2020-11-29 19:26:32,601 WARN L860 $PredicateComparison]: unable to prove that (and (or (forall ((v_prenex_2 (_ BitVec 32))) (not (= (select |c_#valid| v_prenex_2) (_ bv0 1)))) (exists ((v_prenex_1 (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_1)))) (forall ((ldv_malloc_~size (_ BitVec 32)) (v_entry_point_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~array~0.base_BEFORE_CALL_4 (_ BitVec 32)) (|v_ldv_malloc_#t~malloc12.base_24| (_ BitVec 32)) (v_entry_point_~array~0.offset_BEFORE_CALL_2 (_ BitVec 32))) (let ((.cse1 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse1 v_entry_point_~array~0.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (bvule .cse0 (select (store |c_#length| |v_ldv_malloc_#t~malloc12.base_24| ldv_malloc_~size) v_entry_point_~array~0.base_BEFORE_CALL_4)) (exists ((v_ldv_malloc_~size_28 (_ BitVec 32)) (|v_ldv_malloc_#t~malloc12.base_23| (_ BitVec 32))) (and (not (bvule (bvadd (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_entry_point_~array~0.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_23| v_ldv_malloc_~size_28) v_entry_point_~array~0.base_BEFORE_CALL_4))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_23|) (_ bv0 1)))) (not (bvule (bvadd .cse1 v_entry_point_~array~0.offset_BEFORE_CALL_2) .cse0)) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_24|) (_ bv0 1)))))))) is different from true [2020-11-29 19:26:34,632 WARN L838 $PredicateComparison]: unable to prove that (and (or (let ((.cse0 (bvmul c_entry_point_~i~0 (_ bv4 32)))) (bvule (bvadd c_entry_point_~array~0.offset .cse0) (bvadd c_entry_point_~array~0.offset .cse0 (_ bv4 32)))) (forall ((|v_ldv_malloc_#t~malloc12.base_23| (_ BitVec 32))) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_23|) (_ bv0 1))))) (forall ((v_ldv_malloc_~size_28 (_ BitVec 32)) (v_prenex_3 (_ BitVec 32))) (or (not (= (select |c_#valid| v_prenex_3) (_ bv0 1))) (bvule (bvadd c_entry_point_~array~0.offset (bvmul c_entry_point_~i~0 (_ bv4 32)) (_ bv4 32)) (select (store |c_#length| v_prenex_3 v_ldv_malloc_~size_28) c_entry_point_~array~0.base))))) is different from false [2020-11-29 19:26:40,816 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-11-29 19:26:40,924 INFO L441 ElimStorePlain]: Different costs {1=[|v_#valid_184|], 2=[|v_#length_144|]} [2020-11-29 19:26:40,934 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-11-29 19:26:40,935 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:26:40,968 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:26:40,969 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 19:26:40,970 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 19:26:40,977 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:26:40,978 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 19:26:40,979 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:23, output treesize:5 [2020-11-29 19:26:43,601 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 36 [2020-11-29 19:26:44,874 INFO L441 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2020-11-29 19:26:44,887 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-11-29 19:26:44,889 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:26:44,908 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:26:44,911 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-29 19:26:44,912 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 19:26:44,944 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:26:44,950 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 19:26:44,950 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:33, output treesize:16 [2020-11-29 19:26:45,174 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2020-11-29 19:26:45,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [776696105] [2020-11-29 19:26:45,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 19:26:45,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 19 [2020-11-29 19:26:45,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320723359] [2020-11-29 19:26:45,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-11-29 19:26:45,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:26:45,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-11-29 19:26:45,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=203, Unknown=8, NotChecked=124, Total=380 [2020-11-29 19:26:45,177 INFO L87 Difference]: Start difference. First operand 76 states and 99 transitions. Second operand 20 states. [2020-11-29 19:27:04,238 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 32 [2020-11-29 19:27:10,452 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_#length| |c_old(#length)|) (or (forall ((v_prenex_2 (_ BitVec 32))) (not (= (select |c_#valid| v_prenex_2) (_ bv0 1)))) (exists ((v_prenex_1 (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_1)))) (forall ((ldv_malloc_~size (_ BitVec 32)) (v_entry_point_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~array~0.base_BEFORE_CALL_4 (_ BitVec 32)) (|v_ldv_malloc_#t~malloc12.base_24| (_ BitVec 32)) (v_entry_point_~array~0.offset_BEFORE_CALL_2 (_ BitVec 32))) (let ((.cse1 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse1 v_entry_point_~array~0.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (bvule .cse0 (select (store |c_#length| |v_ldv_malloc_#t~malloc12.base_24| ldv_malloc_~size) v_entry_point_~array~0.base_BEFORE_CALL_4)) (exists ((v_ldv_malloc_~size_28 (_ BitVec 32)) (|v_ldv_malloc_#t~malloc12.base_23| (_ BitVec 32))) (and (not (bvule (bvadd (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_entry_point_~array~0.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_23| v_ldv_malloc_~size_28) v_entry_point_~array~0.base_BEFORE_CALL_4))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_23|) (_ bv0 1)))) (not (bvule (bvadd .cse1 v_entry_point_~array~0.offset_BEFORE_CALL_2) .cse0)) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_24|) (_ bv0 1))))))) (= |c_old(#valid)| |c_#valid|)) is different from false [2020-11-29 19:27:49,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:27:49,048 INFO L93 Difference]: Finished difference Result 196 states and 241 transitions. [2020-11-29 19:27:49,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-11-29 19:27:49,049 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 23 [2020-11-29 19:27:49,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:27:49,052 INFO L225 Difference]: With dead ends: 196 [2020-11-29 19:27:49,052 INFO L226 Difference]: Without dead ends: 196 [2020-11-29 19:27:49,053 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 5 SemanticMatches, 31 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 49.1s TimeCoverageRelationStatistics Valid=145, Invalid=622, Unknown=9, NotChecked=280, Total=1056 [2020-11-29 19:27:49,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-11-29 19:27:49,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 82. [2020-11-29 19:27:49,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-11-29 19:27:49,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 107 transitions. [2020-11-29 19:27:49,069 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 107 transitions. Word has length 23 [2020-11-29 19:27:49,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:27:49,069 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 107 transitions. [2020-11-29 19:27:49,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-11-29 19:27:49,070 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 107 transitions. [2020-11-29 19:27:49,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-29 19:27:49,071 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:27:49,071 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:27:49,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-29 19:27:49,278 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, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-29 19:27:49,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:27:49,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1125229616, now seen corresponding path program 1 times [2020-11-29 19:27:49,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:27:49,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [873474652] [2020-11-29 19:27:49,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/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 [2020-11-29 19:27:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:49,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 19:27:49,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:27:49,506 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:49,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:27:49,576 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 19:27:49,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [873474652] [2020-11-29 19:27:49,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 19:27:49,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2020-11-29 19:27:49,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005939407] [2020-11-29 19:27:49,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 19:27:49,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:27:49,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:27:49,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:27:49,579 INFO L87 Difference]: Start difference. First operand 82 states and 107 transitions. Second operand 5 states. [2020-11-29 19:27:49,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:27:49,653 INFO L93 Difference]: Finished difference Result 58 states and 70 transitions. [2020-11-29 19:27:49,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:27:49,654 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-11-29 19:27:49,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:27:49,655 INFO L225 Difference]: With dead ends: 58 [2020-11-29 19:27:49,655 INFO L226 Difference]: Without dead ends: 54 [2020-11-29 19:27:49,656 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:27:49,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-29 19:27:49,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-11-29 19:27:49,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-29 19:27:49,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 66 transitions. [2020-11-29 19:27:49,662 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 66 transitions. Word has length 23 [2020-11-29 19:27:49,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:27:49,663 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 66 transitions. [2020-11-29 19:27:49,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 19:27:49,663 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2020-11-29 19:27:49,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 19:27:49,664 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:27:49,664 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:27:49,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-29 19:27:49,890 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, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-29 19:27:49,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:27:49,891 INFO L82 PathProgramCache]: Analyzing trace with hash -475603747, now seen corresponding path program 1 times [2020-11-29 19:27:49,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:27:49,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090262335] [2020-11-29 19:27:49,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/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 [2020-11-29 19:27:50,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:50,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 19:27:50,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:27:50,111 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 19:27:50,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:27:50,168 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 19:27:50,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090262335] [2020-11-29 19:27:50,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:27:50,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-29 19:27:50,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203149257] [2020-11-29 19:27:50,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 19:27:50,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:27:50,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:27:50,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:27:50,170 INFO L87 Difference]: Start difference. First operand 54 states and 66 transitions. Second operand 5 states. [2020-11-29 19:27:50,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:27:50,249 INFO L93 Difference]: Finished difference Result 86 states and 106 transitions. [2020-11-29 19:27:50,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:27:50,250 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-29 19:27:50,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:27:50,251 INFO L225 Difference]: With dead ends: 86 [2020-11-29 19:27:50,251 INFO L226 Difference]: Without dead ends: 86 [2020-11-29 19:27:50,252 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:27:50,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-11-29 19:27:50,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 58. [2020-11-29 19:27:50,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-11-29 19:27:50,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2020-11-29 19:27:50,267 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 25 [2020-11-29 19:27:50,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:27:50,270 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2020-11-29 19:27:50,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 19:27:50,270 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2020-11-29 19:27:50,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 19:27:50,273 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:27:50,273 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:27:50,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-29 19:27:50,474 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, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-29 19:27:50,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:27:50,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1267206588, now seen corresponding path program 1 times [2020-11-29 19:27:50,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:27:50,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [111614203] [2020-11-29 19:27:50,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/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 [2020-11-29 19:27:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:50,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 19:27:50,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:27:50,655 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-29 19:27:50,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:27:50,687 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-29 19:27:50,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [111614203] [2020-11-29 19:27:50,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:27:50,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-29 19:27:50,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114839] [2020-11-29 19:27:50,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 19:27:50,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:27:50,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:27:50,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:27:50,689 INFO L87 Difference]: Start difference. First operand 58 states and 70 transitions. Second operand 6 states. [2020-11-29 19:27:50,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:27:50,784 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2020-11-29 19:27:50,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:27:50,785 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-11-29 19:27:50,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:27:50,786 INFO L225 Difference]: With dead ends: 62 [2020-11-29 19:27:50,786 INFO L226 Difference]: Without dead ends: 62 [2020-11-29 19:27:50,786 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-29 19:27:50,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-11-29 19:27:50,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 60. [2020-11-29 19:27:50,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-11-29 19:27:50,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 72 transitions. [2020-11-29 19:27:50,792 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 72 transitions. Word has length 25 [2020-11-29 19:27:50,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:27:50,793 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 72 transitions. [2020-11-29 19:27:50,793 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 19:27:50,793 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 72 transitions. [2020-11-29 19:27:50,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-29 19:27:50,794 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:27:50,794 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:27:51,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-29 19:27:51,008 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, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-29 19:27:51,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:27:51,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1985214815, now seen corresponding path program 1 times [2020-11-29 19:27:51,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:27:51,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1670347576] [2020-11-29 19:27:51,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d618bfc9-67a3-4940-9da7-7938651f5405/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 [2020-11-29 19:27:51,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:27:51,220 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:27:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:27:51,251 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:27:51,302 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-29 19:27:51,302 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 19:27:51,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-29 19:27:51,527 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-11-29 19:27:51,534 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# [2020-11-29 19:27:51,535 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 7bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2020-11-29 19:27:51,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:27:51 BoogieIcfgContainer [2020-11-29 19:27:51,545 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:27:51,546 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:27:51,546 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:27:51,546 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:27:51,547 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:25:16" (3/4) ... [2020-11-29 19:27:51,550 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 19:27:51,550 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:27:51,552 INFO L168 Benchmark]: Toolchain (without parser) took 158695.03 ms. Allocated memory was 58.7 MB in the beginning and 111.1 MB in the end (delta: 52.4 MB). Free memory was 35.2 MB in the beginning and 85.1 MB in the end (delta: -49.9 MB). Peak memory consumption was 556.2 kB. Max. memory is 16.1 GB. [2020-11-29 19:27:51,552 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 58.7 MB. Free memory was 40.3 MB in the beginning and 40.3 MB in the end (delta: 25.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:27:51,553 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1015.05 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 35.1 MB in the beginning and 42.4 MB in the end (delta: -7.3 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:27:51,554 INFO L168 Benchmark]: Boogie Preprocessor took 109.94 ms. Allocated memory is still 75.5 MB. Free memory was 42.4 MB in the beginning and 37.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:27:51,554 INFO L168 Benchmark]: RCFGBuilder took 2034.06 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 37.7 MB in the beginning and 67.6 MB in the end (delta: -30.0 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2020-11-29 19:27:51,555 INFO L168 Benchmark]: TraceAbstraction took 155523.97 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 66.9 MB in the beginning and 86.2 MB in the end (delta: -19.3 MB). Peak memory consumption was 60.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:27:51,555 INFO L168 Benchmark]: Witness Printer took 4.87 ms. Allocated memory is still 111.1 MB. Free memory is still 85.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:27:51,558 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 58.7 MB. Free memory was 40.3 MB in the beginning and 40.3 MB in the end (delta: 25.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1015.05 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 35.1 MB in the beginning and 42.4 MB in the end (delta: -7.3 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 109.94 ms. Allocated memory is still 75.5 MB. Free memory was 42.4 MB in the beginning and 37.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2034.06 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 37.7 MB in the beginning and 67.6 MB in the end (delta: -30.0 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 155523.97 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 66.9 MB in the beginning and 86.2 MB in the end (delta: -19.3 MB). Peak memory consumption was 60.1 MB. Max. memory is 16.1 GB. * Witness Printer took 4.87 ms. Allocated memory is still 111.1 MB. Free memory is still 85.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - 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 7bv32 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: - UnprovableResult [Line: 778]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 778. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={3:0}] [L779] CALL entry_point() VAL [ldv_global_msg_list={3:0}] [L761] int len = 10; VAL [ldv_global_msg_list={3:0}, len=10] [L762] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [\old(size)=40, ldv_global_msg_list={3:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); VAL [\old(size)=40, \result={1:0}, ldv_global_msg_list={3:0}, malloc(size)={1:0}, size=40] [L762] RET, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [ldv_global_msg_list={3:0}, ldv_malloc(sizeof(struct A18*)*len)={1:0}, len=10] [L762] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L763] struct A18 *p; [L764] int i=0; [L765] int j; VAL [array={1:0}, i=0, ldv_global_msg_list={3:0}, len=10] [L766] COND FALSE !(!array) VAL [array={1:0}, i=0, ldv_global_msg_list={3:0}, len=10] [L767] COND TRUE i=0) VAL [array={1:0}, i=0, j=4294967295, ldv_global_msg_list={3:0}, len=10, p={0:0}] [L779] RET entry_point() VAL [ldv_global_msg_list={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 351 locations, 78 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 155.4s, OverallIterations: 9, TraceHistogramMax: 2, AutomataDifference: 117.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 379 SDtfs, 658 SDslu, 1007 SDs, 0 SdLazy, 723 SolverSat, 121 SolverUnsat, 48 SolverUnknown, 0 SolverNotchecked, 94.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 360 GetRequests, 286 SyntacticMatches, 10 SemanticMatches, 64 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 53.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred 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: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 282 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 33.2s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 326 ConstructedInterpolants, 19 QuantifiedInterpolants, 32236 SizeOfPredicates, 20 NumberOfNonLiveVariables, 739 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 28/40 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...