./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.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_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/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 9988836ddee06b99001d03a87a3e72125eac1288 .................................................................................................................................. 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_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/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 9988836ddee06b99001d03a87a3e72125eac1288 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:02:38,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:02:38,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:02:38,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:02:38,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:02:38,842 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:02:38,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:02:38,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:02:38,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:02:38,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:02:38,883 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:02:38,889 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:02:38,890 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:02:38,895 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:02:38,898 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:02:38,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:02:38,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:02:38,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:02:38,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:02:38,928 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:02:38,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:02:38,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:02:38,936 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:02:38,938 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:02:38,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:02:38,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:02:38,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:02:38,955 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:02:38,956 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:02:38,958 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:02:38,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:02:38,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:02:38,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:02:38,965 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:02:38,967 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:02:38,968 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:02:38,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:02:38,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:02:38,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:02:38,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:02:38,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:02:38,977 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-30 01:02:39,018 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:02:39,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:02:39,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:02:39,022 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:02:39,022 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:02:39,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:02:39,023 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:02:39,023 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:02:39,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:02:39,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:02:39,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:02:39,025 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-30 01:02:39,025 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-30 01:02:39,025 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-30 01:02:39,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:02:39,026 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:02:39,026 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:02:39,027 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:02:39,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:02:39,028 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:02:39,028 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:02:39,028 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:02:39,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:02:39,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:02:39,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:02:39,030 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:02:39,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:02:39,031 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:02:39,031 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_92b3d07f-256a-45dc-8198-b78897577374/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9988836ddee06b99001d03a87a3e72125eac1288 [2020-11-30 01:02:39,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:02:39,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:02:39,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:02:39,424 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:02:39,425 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:02:39,427 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2020-11-30 01:02:39,528 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/data/195434600/30f18c86e84a486b82e0b67ef01827f1/FLAGaa97476e0 [2020-11-30 01:02:40,320 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:02:40,321 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2020-11-30 01:02:40,342 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/data/195434600/30f18c86e84a486b82e0b67ef01827f1/FLAGaa97476e0 [2020-11-30 01:02:40,492 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/data/195434600/30f18c86e84a486b82e0b67ef01827f1 [2020-11-30 01:02:40,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:02:40,498 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-30 01:02:40,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:02:40,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:02:40,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:02:40,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:02:40" (1/1) ... [2020-11-30 01:02:40,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c384764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:40, skipping insertion in model container [2020-11-30 01:02:40,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:02:40" (1/1) ... [2020-11-30 01:02:40,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:02:40,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:02:41,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:02:41,292 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-11-30 01:02:41,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6b9b207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:41, skipping insertion in model container [2020-11-30 01:02:41,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:02:41,294 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-11-30 01:02:41,299 INFO L168 Benchmark]: Toolchain (without parser) took 797.90 ms. Allocated memory is still 111.1 MB. Free memory was 82.2 MB in the beginning and 86.0 MB in the end (delta: -3.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:41,302 INFO L168 Benchmark]: CDTParser took 0.87 ms. Allocated memory is still 83.9 MB. Free memory was 43.9 MB in the beginning and 43.8 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:02:41,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 784.97 ms. Allocated memory is still 111.1 MB. Free memory was 81.9 MB in the beginning and 86.0 MB in the end (delta: -4.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:41,308 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87 ms. Allocated memory is still 83.9 MB. Free memory was 43.9 MB in the beginning and 43.8 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 784.97 ms. Allocated memory is still 111.1 MB. Free memory was 81.9 MB in the beginning and 86.0 MB in the end (delta: -4.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:02:44,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:02:44,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:02:44,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:02:44,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:02:44,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:02:44,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:02:44,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:02:44,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:02:44,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:02:44,673 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:02:44,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:02:44,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:02:44,688 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:02:44,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:02:44,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:02:44,695 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:02:44,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:02:44,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:02:44,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:02:44,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:02:44,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:02:44,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:02:44,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:02:44,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:02:44,740 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:02:44,741 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:02:44,742 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:02:44,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:02:44,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:02:44,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:02:44,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:02:44,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:02:44,751 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:02:44,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:02:44,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:02:44,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:02:44,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:02:44,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:02:44,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:02:44,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:02:44,760 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-11-30 01:02:44,796 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:02:44,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:02:44,799 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:02:44,799 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:02:44,800 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:02:44,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:02:44,801 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:02:44,801 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:02:44,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:02:44,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:02:44,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:02:44,802 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-30 01:02:44,803 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-30 01:02:44,803 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-30 01:02:44,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:02:44,804 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:02:44,804 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 01:02:44,804 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 01:02:44,805 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:02:44,805 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:02:44,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:02:44,806 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:02:44,806 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:02:44,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:02:44,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:02:44,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:02:44,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:02:44,808 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 01:02:44,808 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 01:02:44,809 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:02:44,809 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:02:44,809 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_92b3d07f-256a-45dc-8198-b78897577374/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9988836ddee06b99001d03a87a3e72125eac1288 [2020-11-30 01:02:45,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:02:45,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:02:45,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:02:45,408 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:02:45,409 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:02:45,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2020-11-30 01:02:45,543 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/data/30e3d4222/a36ad9ef4e624f89879fa226929e178d/FLAG0103ff11b [2020-11-30 01:02:46,535 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:02:46,542 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/sv-benchmarks/c/ldv-memsafety/memleaks_test6_3.i [2020-11-30 01:02:46,577 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/data/30e3d4222/a36ad9ef4e624f89879fa226929e178d/FLAG0103ff11b [2020-11-30 01:02:46,626 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/data/30e3d4222/a36ad9ef4e624f89879fa226929e178d [2020-11-30 01:02:46,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:02:46,631 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-30 01:02:46,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:02:46,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:02:46,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:02:46,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:02:46" (1/1) ... [2020-11-30 01:02:46,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50bbb1a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:46, skipping insertion in model container [2020-11-30 01:02:46,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:02:46" (1/1) ... [2020-11-30 01:02:46,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:02:46,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:02:47,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:02:47,401 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-30 01:02:47,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:02:47,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:02:47,502 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:02:47,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:02:47,722 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:02:47,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:47 WrapperNode [2020-11-30 01:02:47,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:02:47,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:02:47,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:02:47,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:02:47,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:47" (1/1) ... [2020-11-30 01:02:47,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:47" (1/1) ... [2020-11-30 01:02:47,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:47" (1/1) ... [2020-11-30 01:02:47,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:47" (1/1) ... [2020-11-30 01:02:47,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:47" (1/1) ... [2020-11-30 01:02:47,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:47" (1/1) ... [2020-11-30 01:02:47,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:47" (1/1) ... [2020-11-30 01:02:47,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:02:47,835 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:02:47,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:02:47,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:02:47,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:02:47,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-30 01:02:47,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:02:47,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-11-30 01:02:47,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-11-30 01:02:47,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-30 01:02:47,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-30 01:02:47,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-30 01:02:47,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-30 01:02:47,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-30 01:02:47,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2020-11-30 01:02:47,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2020-11-30 01:02:47,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-11-30 01:02:47,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-11-30 01:02:47,911 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-11-30 01:02:47,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-11-30 01:02:47,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-11-30 01:02:47,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-11-30 01:02:47,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-11-30 01:02:47,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-11-30 01:02:47,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2020-11-30 01:02:47,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2020-11-30 01:02:47,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2020-11-30 01:02:47,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2020-11-30 01:02:47,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2020-11-30 01:02:47,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2020-11-30 01:02:47,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2020-11-30 01:02:47,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2020-11-30 01:02:47,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2020-11-30 01:02:47,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2020-11-30 01:02:47,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2020-11-30 01:02:47,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2020-11-30 01:02:47,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2020-11-30 01:02:47,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2020-11-30 01:02:47,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2020-11-30 01:02:47,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2020-11-30 01:02:47,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2020-11-30 01:02:47,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2020-11-30 01:02:47,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2020-11-30 01:02:47,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2020-11-30 01:02:47,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2020-11-30 01:02:47,916 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-11-30 01:02:47,916 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-11-30 01:02:47,916 INFO L138 BoogieDeclarations]: Found implementation of procedure f6 [2020-11-30 01:02:47,916 INFO L138 BoogieDeclarations]: Found implementation of procedure g6 [2020-11-30 01:02:47,917 INFO L138 BoogieDeclarations]: Found implementation of procedure probe1_6 [2020-11-30 01:02:47,917 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_2_6 [2020-11-30 01:02:47,917 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2020-11-30 01:02:47,917 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-30 01:02:47,917 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-11-30 01:02:47,918 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-11-30 01:02:47,918 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-11-30 01:02:47,918 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-30 01:02:47,918 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-30 01:02:47,918 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-30 01:02:47,919 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-30 01:02:47,919 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-30 01:02:47,919 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-30 01:02:47,919 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-30 01:02:47,919 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-30 01:02:47,919 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-30 01:02:47,920 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-30 01:02:47,920 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-30 01:02:47,920 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-30 01:02:47,920 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-30 01:02:47,920 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-30 01:02:47,921 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-30 01:02:47,921 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-30 01:02:47,921 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-30 01:02:47,921 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-30 01:02:47,921 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-30 01:02:47,921 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-30 01:02:47,922 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-30 01:02:47,922 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-30 01:02:47,922 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-30 01:02:47,922 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-30 01:02:47,922 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-30 01:02:47,922 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-30 01:02:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-30 01:02:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-30 01:02:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-30 01:02:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-30 01:02:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-30 01:02:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-30 01:02:47,924 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-30 01:02:47,924 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-30 01:02:47,924 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-30 01:02:47,924 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-30 01:02:47,924 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-30 01:02:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-30 01:02:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-30 01:02:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-30 01:02:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-30 01:02:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-30 01:02:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-30 01:02:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-30 01:02:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-30 01:02:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-30 01:02:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-30 01:02:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-30 01:02:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-30 01:02:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-30 01:02:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-30 01:02:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-30 01:02:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-30 01:02:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-30 01:02:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-30 01:02:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-30 01:02:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-30 01:02:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-30 01:02:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-30 01:02:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-30 01:02:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-30 01:02:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-30 01:02:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-30 01:02:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-30 01:02:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-30 01:02:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-30 01:02:47,930 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-30 01:02:47,930 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-30 01:02:47,930 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-30 01:02:47,930 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-30 01:02:47,930 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-30 01:02:47,930 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-30 01:02:47,931 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-30 01:02:47,931 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-30 01:02:47,931 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-30 01:02:47,931 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-30 01:02:47,931 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-30 01:02:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-30 01:02:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-30 01:02:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-30 01:02:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-30 01:02:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-30 01:02:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-30 01:02:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-30 01:02:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-30 01:02:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-30 01:02:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-30 01:02:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-30 01:02:47,934 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-30 01:02:47,934 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-30 01:02:47,934 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-30 01:02:47,934 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-30 01:02:47,934 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-30 01:02:47,934 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-30 01:02:47,935 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-30 01:02:47,935 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-30 01:02:47,935 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-30 01:02:47,935 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-30 01:02:47,935 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-30 01:02:47,935 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-30 01:02:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-30 01:02:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-30 01:02:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-30 01:02:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-30 01:02:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-30 01:02:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-30 01:02:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-30 01:02:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-11-30 01:02:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-30 01:02:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2020-11-30 01:02:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2020-11-30 01:02:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-11-30 01:02:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-11-30 01:02:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-11-30 01:02:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 01:02:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-11-30 01:02:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-11-30 01:02:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-11-30 01:02:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-30 01:02:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-11-30 01:02:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-11-30 01:02:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-11-30 01:02:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-30 01:02:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-11-30 01:02:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-11-30 01:02:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2020-11-30 01:02:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2020-11-30 01:02:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-11-30 01:02:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2020-11-30 01:02:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:02:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2020-11-30 01:02:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2020-11-30 01:02:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2020-11-30 01:02:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2020-11-30 01:02:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2020-11-30 01:02:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 01:02:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 01:02:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2020-11-30 01:02:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2020-11-30 01:02:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-11-30 01:02:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2020-11-30 01:02:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2020-11-30 01:02:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2020-11-30 01:02:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2020-11-30 01:02:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2020-11-30 01:02:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2020-11-30 01:02:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2020-11-30 01:02:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2020-11-30 01:02:47,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2020-11-30 01:02:47,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2020-11-30 01:02:47,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2020-11-30 01:02:47,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-11-30 01:02:47,944 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-11-30 01:02:47,944 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-11-30 01:02:47,945 INFO L130 BoogieDeclarations]: Found specification of procedure f6 [2020-11-30 01:02:47,945 INFO L130 BoogieDeclarations]: Found specification of procedure g6 [2020-11-30 01:02:47,945 INFO L130 BoogieDeclarations]: Found specification of procedure probe1_6 [2020-11-30 01:02:47,945 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_2_6 [2020-11-30 01:02:47,945 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2020-11-30 01:02:47,945 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-30 01:02:47,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-30 01:02:47,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:02:47,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-30 01:02:47,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:02:47,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-11-30 01:02:47,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2020-11-30 01:02:47,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2020-11-30 01:02:47,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-11-30 01:02:47,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-11-30 01:02:48,688 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-30 01:02:49,159 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-30 01:02:49,631 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:02:49,631 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-30 01:02:49,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:49 BoogieIcfgContainer [2020-11-30 01:02:49,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:02:49,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:02:49,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:02:49,639 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:02:49,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:02:46" (1/3) ... [2020-11-30 01:02:49,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69577cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:02:49, skipping insertion in model container [2020-11-30 01:02:49,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:47" (2/3) ... [2020-11-30 01:02:49,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69577cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:02:49, skipping insertion in model container [2020-11-30 01:02:49,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:49" (3/3) ... [2020-11-30 01:02:49,642 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test6_3.i [2020-11-30 01:02:49,653 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:02:49,658 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 78 error locations. [2020-11-30 01:02:49,670 INFO L253 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2020-11-30 01:02:49,690 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:02:49,690 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-30 01:02:49,690 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:02:49,690 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:02:49,690 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:02:49,691 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:02:49,691 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:02:49,691 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:02:49,708 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states. [2020-11-30 01:02:49,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 01:02:49,715 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:49,716 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:49,717 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-30 01:02:49,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:49,723 INFO L82 PathProgramCache]: Analyzing trace with hash 24886788, now seen corresponding path program 1 times [2020-11-30 01:02:49,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:02:49,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1961086685] [2020-11-30 01:02:49,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 01:02:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:50,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 01:02:50,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:02:50,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:50,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:02:50,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:50,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1961086685] [2020-11-30 01:02:50,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:50,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-30 01:02:50,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686050332] [2020-11-30 01:02:50,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:02:50,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:02:50,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:02:50,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:02:50,222 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 5 states. [2020-11-30 01:02:50,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:50,319 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2020-11-30 01:02:50,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:02:50,322 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-11-30 01:02:50,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:50,333 INFO L225 Difference]: With dead ends: 76 [2020-11-30 01:02:50,333 INFO L226 Difference]: Without dead ends: 73 [2020-11-30 01:02:50,335 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:02:50,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-11-30 01:02:50,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 56. [2020-11-30 01:02:50,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-30 01:02:50,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2020-11-30 01:02:50,387 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 20 [2020-11-30 01:02:50,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:50,388 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2020-11-30 01:02:50,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:02:50,388 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2020-11-30 01:02:50,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 01:02:50,391 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:50,391 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:50,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 01:02:50,612 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-30 01:02:50,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:50,614 INFO L82 PathProgramCache]: Analyzing trace with hash -171626717, now seen corresponding path program 1 times [2020-11-30 01:02:50,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:02:50,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [595886723] [2020-11-30 01:02:50,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 01:02:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:50,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-30 01:02:50,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:02:51,087 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 17 [2020-11-30 01:02:51,088 INFO L350 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-11-30 01:02:51,089 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2020-11-30 01:02:51,089 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:51,124 INFO L625 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2020-11-30 01:02:51,128 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 01:02:51,132 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 01:02:51,132 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2020-11-30 01:02:51,133 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 01:02:51,164 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2020-11-30 01:02:51,165 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:51,167 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:51,167 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:02:51,168 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2020-11-30 01:02:51,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:51,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:02:51,263 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 01:02:51,279 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2020-11-30 01:02:51,284 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:51,292 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:51,293 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:02:51,293 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:16 [2020-11-30 01:02:51,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:51,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [595886723] [2020-11-30 01:02:51,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:51,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-30 01:02:51,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790112940] [2020-11-30 01:02:51,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:02:51,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:02:51,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:02:51,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:02:51,330 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 5 states. [2020-11-30 01:02:51,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:51,563 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2020-11-30 01:02:51,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:02:51,564 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-11-30 01:02:51,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:51,565 INFO L225 Difference]: With dead ends: 92 [2020-11-30 01:02:51,566 INFO L226 Difference]: Without dead ends: 89 [2020-11-30 01:02:51,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:02:51,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-30 01:02:51,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2020-11-30 01:02:51,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-11-30 01:02:51,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 93 transitions. [2020-11-30 01:02:51,594 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 93 transitions. Word has length 20 [2020-11-30 01:02:51,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:51,594 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 93 transitions. [2020-11-30 01:02:51,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:02:51,594 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 93 transitions. [2020-11-30 01:02:51,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 01:02:51,596 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:51,596 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:51,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 01:02:51,813 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-30 01:02:51,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:51,814 INFO L82 PathProgramCache]: Analyzing trace with hash -171626716, now seen corresponding path program 1 times [2020-11-30 01:02:51,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:02:51,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [915473465] [2020-11-30 01:02:51,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 01:02:52,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:52,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 01:02:52,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:02:52,063 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:52,064 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2020-11-30 01:02:52,064 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:52,095 INFO L625 ElimStorePlain]: treesize reduction 10, result has 64.3 percent of original size [2020-11-30 01:02:52,097 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:02:52,097 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2020-11-30 01:02:52,166 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2020-11-30 01:02:52,173 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:52,201 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:52,202 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:02:52,202 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:7 [2020-11-30 01:02:52,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:52,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:02:52,503 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-11-30 01:02:52,517 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2020-11-30 01:02:52,518 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 01:02:52,548 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:52,549 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 01:02:52,550 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:28 [2020-11-30 01:02:52,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:52,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [915473465] [2020-11-30 01:02:52,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:52,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-30 01:02:52,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493679476] [2020-11-30 01:02:52,644 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:02:52,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:02:52,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:02:52,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:02:52,645 INFO L87 Difference]: Start difference. First operand 79 states and 93 transitions. Second operand 6 states. [2020-11-30 01:02:52,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:52,903 INFO L93 Difference]: Finished difference Result 110 states and 118 transitions. [2020-11-30 01:02:52,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:02:52,908 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-11-30 01:02:52,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:52,910 INFO L225 Difference]: With dead ends: 110 [2020-11-30 01:02:52,910 INFO L226 Difference]: Without dead ends: 100 [2020-11-30 01:02:52,910 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:02:52,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-11-30 01:02:52,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 90. [2020-11-30 01:02:52,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-11-30 01:02:52,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 103 transitions. [2020-11-30 01:02:52,922 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 103 transitions. Word has length 20 [2020-11-30 01:02:52,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:52,923 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 103 transitions. [2020-11-30 01:02:52,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:02:52,923 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 103 transitions. [2020-11-30 01:02:52,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-30 01:02:52,924 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:52,924 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:53,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 01:02:53,140 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-30 01:02:53,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:53,141 INFO L82 PathProgramCache]: Analyzing trace with hash 2076107592, now seen corresponding path program 1 times [2020-11-30 01:02:53,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:02:53,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1955476099] [2020-11-30 01:02:53,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-30 01:02:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:53,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 01:02:53,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:02:53,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:53,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:02:53,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:53,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1955476099] [2020-11-30 01:02:53,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:53,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-30 01:02:53,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810412978] [2020-11-30 01:02:53,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:02:53,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:02:53,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:02:53,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:02:53,501 INFO L87 Difference]: Start difference. First operand 90 states and 103 transitions. Second operand 5 states. [2020-11-30 01:02:53,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:53,531 INFO L93 Difference]: Finished difference Result 89 states and 101 transitions. [2020-11-30 01:02:53,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:02:53,532 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-11-30 01:02:53,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:53,534 INFO L225 Difference]: With dead ends: 89 [2020-11-30 01:02:53,534 INFO L226 Difference]: Without dead ends: 89 [2020-11-30 01:02:53,534 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:02:53,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-30 01:02:53,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2020-11-30 01:02:53,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-11-30 01:02:53,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 101 transitions. [2020-11-30 01:02:53,549 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 101 transitions. Word has length 22 [2020-11-30 01:02:53,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:53,550 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 101 transitions. [2020-11-30 01:02:53,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:02:53,550 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 101 transitions. [2020-11-30 01:02:53,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-30 01:02:53,551 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:53,551 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:53,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 01:02:53,772 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-30 01:02:53,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:53,772 INFO L82 PathProgramCache]: Analyzing trace with hash -65173633, now seen corresponding path program 1 times [2020-11-30 01:02:53,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:02:53,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426166361] [2020-11-30 01:02:53,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-30 01:02:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:53,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 01:02:53,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:02:54,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:54,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:02:54,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:54,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [426166361] [2020-11-30 01:02:54,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:54,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2020-11-30 01:02:54,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381755191] [2020-11-30 01:02:54,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 01:02:54,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:02:54,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 01:02:54,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:02:54,252 INFO L87 Difference]: Start difference. First operand 89 states and 101 transitions. Second operand 10 states. [2020-11-30 01:02:54,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:54,543 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2020-11-30 01:02:54,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-30 01:02:54,545 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2020-11-30 01:02:54,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:54,547 INFO L225 Difference]: With dead ends: 95 [2020-11-30 01:02:54,547 INFO L226 Difference]: Without dead ends: 95 [2020-11-30 01:02:54,547 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:02:54,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-11-30 01:02:54,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 88. [2020-11-30 01:02:54,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-11-30 01:02:54,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 99 transitions. [2020-11-30 01:02:54,561 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 99 transitions. Word has length 23 [2020-11-30 01:02:54,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:54,562 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 99 transitions. [2020-11-30 01:02:54,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 01:02:54,562 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 99 transitions. [2020-11-30 01:02:54,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 01:02:54,563 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:54,563 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:54,779 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-30 01:02:54,779 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-30 01:02:54,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:54,780 INFO L82 PathProgramCache]: Analyzing trace with hash -2020382166, now seen corresponding path program 1 times [2020-11-30 01:02:54,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:02:54,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1823844441] [2020-11-30 01:02:54,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-30 01:02:54,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:54,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 01:02:54,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:02:54,994 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-30 01:02:54,994 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:54,997 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:54,997 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:02:54,997 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-30 01:02:55,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:55,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:02:55,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:55,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1823844441] [2020-11-30 01:02:55,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:55,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 5 [2020-11-30 01:02:55,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561210769] [2020-11-30 01:02:55,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:02:55,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:02:55,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:02:55,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:02:55,124 INFO L87 Difference]: Start difference. First operand 88 states and 99 transitions. Second operand 6 states. [2020-11-30 01:02:55,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:55,313 INFO L93 Difference]: Finished difference Result 91 states and 98 transitions. [2020-11-30 01:02:55,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:02:55,314 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-11-30 01:02:55,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:55,315 INFO L225 Difference]: With dead ends: 91 [2020-11-30 01:02:55,315 INFO L226 Difference]: Without dead ends: 91 [2020-11-30 01:02:55,315 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:02:55,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-11-30 01:02:55,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 88. [2020-11-30 01:02:55,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-11-30 01:02:55,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2020-11-30 01:02:55,325 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 24 [2020-11-30 01:02:55,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:55,325 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2020-11-30 01:02:55,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:02:55,325 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2020-11-30 01:02:55,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 01:02:55,326 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:55,327 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:55,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-30 01:02:55,527 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-30 01:02:55,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:55,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1769026505, now seen corresponding path program 1 times [2020-11-30 01:02:55,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:02:55,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339484192] [2020-11-30 01:02:55,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-30 01:02:55,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:55,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 01:02:55,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:02:55,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:55,767 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:02:55,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:55,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339484192] [2020-11-30 01:02:55,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:55,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-30 01:02:55,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619422282] [2020-11-30 01:02:55,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:02:55,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:02:55,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:02:55,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:02:55,819 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand 5 states. [2020-11-30 01:02:55,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:55,849 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2020-11-30 01:02:55,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:02:55,851 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-11-30 01:02:55,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:55,852 INFO L225 Difference]: With dead ends: 62 [2020-11-30 01:02:55,852 INFO L226 Difference]: Without dead ends: 58 [2020-11-30 01:02:55,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:02:55,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-11-30 01:02:55,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-11-30 01:02:55,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-11-30 01:02:55,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2020-11-30 01:02:55,864 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 24 [2020-11-30 01:02:55,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:55,865 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2020-11-30 01:02:55,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:02:55,865 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2020-11-30 01:02:55,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-30 01:02:55,866 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:55,866 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:56,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-30 01:02:56,077 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-30 01:02:56,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:56,077 INFO L82 PathProgramCache]: Analyzing trace with hash -292940866, now seen corresponding path program 1 times [2020-11-30 01:02:56,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:02:56,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18112950] [2020-11-30 01:02:56,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-11-30 01:02:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:56,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-30 01:02:56,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:02:56,404 INFO L350 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-11-30 01:02:56,405 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2020-11-30 01:02:56,405 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:56,429 INFO L625 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2020-11-30 01:02:56,430 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 01:02:56,431 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 01:02:56,431 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2020-11-30 01:02:56,432 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 01:02:56,546 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:56,547 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 30 [2020-11-30 01:02:56,548 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:02:56,552 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:56,573 INFO L625 ElimStorePlain]: treesize reduction 14, result has 48.1 percent of original size [2020-11-30 01:02:56,573 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 01:02:56,574 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:13 [2020-11-30 01:02:56,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:56,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:02:56,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:56,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [18112950] [2020-11-30 01:02:56,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:56,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 5] imperfect sequences [] total 8 [2020-11-30 01:02:56,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660189403] [2020-11-30 01:02:56,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 01:02:56,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:02:56,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 01:02:56,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-30 01:02:56,788 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand 9 states. [2020-11-30 01:02:57,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:57,207 INFO L93 Difference]: Finished difference Result 62 states and 64 transitions. [2020-11-30 01:02:57,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 01:02:57,207 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-11-30 01:02:57,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:57,208 INFO L225 Difference]: With dead ends: 62 [2020-11-30 01:02:57,208 INFO L226 Difference]: Without dead ends: 62 [2020-11-30 01:02:57,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 43 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-11-30 01:02:57,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-11-30 01:02:57,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 57. [2020-11-30 01:02:57,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-11-30 01:02:57,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2020-11-30 01:02:57,215 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 28 [2020-11-30 01:02:57,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:57,215 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2020-11-30 01:02:57,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 01:02:57,216 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2020-11-30 01:02:57,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-30 01:02:57,217 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:57,217 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:57,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-30 01:02:57,429 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-30 01:02:57,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:57,429 INFO L82 PathProgramCache]: Analyzing trace with hash -292940865, now seen corresponding path program 1 times [2020-11-30 01:02:57,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:02:57,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188932838] [2020-11-30 01:02:57,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-11-30 01:02:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:57,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-30 01:02:57,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:02:57,664 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:57,665 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2020-11-30 01:02:57,665 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:57,696 INFO L625 ElimStorePlain]: treesize reduction 10, result has 64.3 percent of original size [2020-11-30 01:02:57,697 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:02:57,698 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2020-11-30 01:02:57,839 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:02:57,840 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 30 [2020-11-30 01:02:57,841 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:02:57,843 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:02:57,877 INFO L625 ElimStorePlain]: treesize reduction 14, result has 53.3 percent of original size [2020-11-30 01:02:57,878 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 01:02:57,878 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:16 [2020-11-30 01:02:57,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:57,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:02:58,233 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 01:02:59,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:59,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188932838] [2020-11-30 01:02:59,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:59,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 14 [2020-11-30 01:02:59,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781755207] [2020-11-30 01:02:59,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-30 01:02:59,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:02:59,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-30 01:02:59,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2020-11-30 01:02:59,926 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand 15 states. [2020-11-30 01:03:01,818 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-11-30 01:03:03,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:03:03,196 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2020-11-30 01:03:03,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-30 01:03:03,198 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 28 [2020-11-30 01:03:03,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:03:03,199 INFO L225 Difference]: With dead ends: 55 [2020-11-30 01:03:03,199 INFO L226 Difference]: Without dead ends: 55 [2020-11-30 01:03:03,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 36 SyntacticMatches, 7 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2020-11-30 01:03:03,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-11-30 01:03:03,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-11-30 01:03:03,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-11-30 01:03:03,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2020-11-30 01:03:03,206 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 28 [2020-11-30 01:03:03,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:03:03,207 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2020-11-30 01:03:03,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-30 01:03:03,207 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2020-11-30 01:03:03,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-30 01:03:03,209 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:03:03,209 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:03:03,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-30 01:03:03,425 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-30 01:03:03,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:03:03,425 INFO L82 PathProgramCache]: Analyzing trace with hash 2144040275, now seen corresponding path program 1 times [2020-11-30 01:03:03,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:03:03,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [580027598] [2020-11-30 01:03:03,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-11-30 01:03:03,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:03,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-30 01:03:03,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:03:03,738 INFO L350 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2020-11-30 01:03:03,738 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2020-11-30 01:03:03,739 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:03:03,806 INFO L625 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2020-11-30 01:03:03,807 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 01:03:03,808 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 01:03:03,808 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2020-11-30 01:03:03,809 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 01:03:03,836 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2020-11-30 01:03:03,842 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:03:03,845 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:03:03,845 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:03:03,845 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2020-11-30 01:03:03,928 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2020-11-30 01:03:03,929 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:03:03,932 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:03:03,932 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 01:03:03,932 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2020-11-30 01:03:06,061 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:03:06,061 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2020-11-30 01:03:06,063 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:03:06,064 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:03:06,079 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:03:06,102 INFO L625 ElimStorePlain]: treesize reduction 10, result has 56.5 percent of original size [2020-11-30 01:03:06,102 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 01:03:06,103 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:13 [2020-11-30 01:03:06,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:06,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:03:08,385 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 01:03:08,562 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 01:03:08,571 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2020-11-30 01:03:08,574 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:03:08,583 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:03:08,583 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:03:08,584 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:17 [2020-11-30 01:03:08,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:08,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [580027598] [2020-11-30 01:03:08,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:03:08,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 6] imperfect sequences [] total 13 [2020-11-30 01:03:08,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387588531] [2020-11-30 01:03:08,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-30 01:03:08,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:03:08,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-30 01:03:08,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=135, Unknown=2, NotChecked=0, Total=182 [2020-11-30 01:03:08,702 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand 14 states. [2020-11-30 01:03:12,827 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification that was a NOOP. DAG size: 32 [2020-11-30 01:04:25,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:25,658 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2020-11-30 01:04:25,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-30 01:04:25,659 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 29 [2020-11-30 01:04:25,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:25,659 INFO L225 Difference]: With dead ends: 57 [2020-11-30 01:04:25,660 INFO L226 Difference]: Without dead ends: 42 [2020-11-30 01:04:25,660 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 42 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=96, Invalid=318, Unknown=6, NotChecked=0, Total=420 [2020-11-30 01:04:25,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-11-30 01:04:25,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-11-30 01:04:25,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-30 01:04:25,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2020-11-30 01:04:25,665 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 29 [2020-11-30 01:04:25,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:25,665 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2020-11-30 01:04:25,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-30 01:04:25,665 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2020-11-30 01:04:25,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-30 01:04:25,667 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:25,667 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:25,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-11-30 01:04:25,878 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-30 01:04:25,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:25,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1970951303, now seen corresponding path program 1 times [2020-11-30 01:04:25,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:04:25,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [76488965] [2020-11-30 01:04:25,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-11-30 01:04:26,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:04:26,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:04:26,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:26,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:26,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:04:26,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:26,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [76488965] [2020-11-30 01:04:26,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:04:26,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-30 01:04:26,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249986456] [2020-11-30 01:04:26,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:04:26,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:04:26,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:04:26,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:04:26,264 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand 5 states. [2020-11-30 01:04:26,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:26,283 INFO L93 Difference]: Finished difference Result 42 states and 41 transitions. [2020-11-30 01:04:26,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:04:26,284 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2020-11-30 01:04:26,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:26,285 INFO L225 Difference]: With dead ends: 42 [2020-11-30 01:04:26,285 INFO L226 Difference]: Without dead ends: 42 [2020-11-30 01:04:26,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:04:26,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-11-30 01:04:26,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-11-30 01:04:26,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-30 01:04:26,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 41 transitions. [2020-11-30 01:04:26,289 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 41 transitions. Word has length 37 [2020-11-30 01:04:26,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:26,289 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 41 transitions. [2020-11-30 01:04:26,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:04:26,289 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 41 transitions. [2020-11-30 01:04:26,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-30 01:04:26,291 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:26,291 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:26,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-11-30 01:04:26,492 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-30 01:04:26,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:26,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1874562474, now seen corresponding path program 1 times [2020-11-30 01:04:26,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:04:26,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57705584] [2020-11-30 01:04:26,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_92b3d07f-256a-45dc-8198-b78897577374/bin/uautomizer/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2020-11-30 01:04:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:04:26,777 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:04:26,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:04:26,858 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:04:26,912 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-30 01:04:26,912 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:04:27,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-11-30 01:04:27,144 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-11-30 01:04:27,160 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 11bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2020-11-30 01:04:27,160 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 10bv32 could not be translated for associated CType STRUCT~~A?p~*VOID# [2020-11-30 01:04:27,161 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 6bv32 could not be translated for associated CType STRUCT~~A?p~*VOID# [2020-11-30 01:04:27,161 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 5bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2020-11-30 01:04:27,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:04:27 BoogieIcfgContainer [2020-11-30 01:04:27,188 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:04:27,189 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:04:27,189 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:04:27,189 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:04:27,190 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:49" (3/4) ... [2020-11-30 01:04:27,194 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 01:04:27,197 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:04:27,199 INFO L168 Benchmark]: Toolchain (without parser) took 100567.34 ms. Allocated memory was 69.2 MB in the beginning and 207.6 MB in the end (delta: 138.4 MB). Free memory was 53.1 MB in the beginning and 170.9 MB in the end (delta: -117.8 MB). Peak memory consumption was 20.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:27,199 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 69.2 MB. Free memory is still 52.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:04:27,200 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1090.50 ms. Allocated memory is still 69.2 MB. Free memory was 52.8 MB in the beginning and 44.6 MB in the end (delta: 8.2 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:27,201 INFO L168 Benchmark]: Boogie Preprocessor took 109.51 ms. Allocated memory is still 69.2 MB. Free memory was 44.6 MB in the beginning and 39.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:27,202 INFO L168 Benchmark]: RCFGBuilder took 1799.50 ms. Allocated memory was 69.2 MB in the beginning and 92.3 MB in the end (delta: 23.1 MB). Free memory was 39.6 MB in the beginning and 50.2 MB in the end (delta: -10.7 MB). Peak memory consumption was 32.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:27,202 INFO L168 Benchmark]: TraceAbstraction took 97552.58 ms. Allocated memory was 92.3 MB in the beginning and 207.6 MB in the end (delta: 115.3 MB). Free memory was 49.5 MB in the beginning and 170.9 MB in the end (delta: -121.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:04:27,203 INFO L168 Benchmark]: Witness Printer took 8.61 ms. Allocated memory is still 207.6 MB. Free memory is still 170.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:04:27,207 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 69.2 MB. Free memory is still 52.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1090.50 ms. Allocated memory is still 69.2 MB. Free memory was 52.8 MB in the beginning and 44.6 MB in the end (delta: 8.2 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 109.51 ms. Allocated memory is still 69.2 MB. Free memory was 44.6 MB in the beginning and 39.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1799.50 ms. Allocated memory was 69.2 MB in the beginning and 92.3 MB in the end (delta: 23.1 MB). Free memory was 39.6 MB in the beginning and 50.2 MB in the end (delta: -10.7 MB). Peak memory consumption was 32.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 97552.58 ms. Allocated memory was 92.3 MB in the beginning and 207.6 MB in the end (delta: 115.3 MB). Free memory was 49.5 MB in the beginning and 170.9 MB in the end (delta: -121.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 8.61 ms. Allocated memory is still 207.6 MB. Free memory is still 170.9 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 11bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 10bv32 could not be translated for associated CType STRUCT~~A?p~*VOID# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 6bv32 could not be translated for associated CType STRUCT~~A?p~*VOID# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 5bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 790]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 790. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L782] struct A a6; VAL [\old(a6)=null, \old(a6)=null, \old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, a6={3:0}, ldv_global_msg_list={7:0}] [L791] CALL entry_point() VAL [a6={3:0}, ldv_global_msg_list={7:0}] [L784] CALL, EXPR probe1_6(&a6) VAL [a={3:0}, a6={3:0}, ldv_global_msg_list={7:0}] [L764] int ret = - -3; VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={7:0}, ret=3] [L765] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, a6={3:0}, ldv_global_msg_list={7:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); VAL [\old(size)=4, \result={1:0}, a6={3:0}, ldv_global_msg_list={7:0}, malloc(size)={1:0}, size=4] [L765] RET, EXPR ldv_malloc(sizeof(int)) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={7:0}, ldv_malloc(sizeof(int))={1:0}, ret=3] [L765] int *p = (int *)ldv_malloc(sizeof(int)); [L766] COND FALSE !(p==0) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={7:0}, p={1:0}, ret=3] [L768] CALL, EXPR f6() VAL [a6={3:0}, ldv_global_msg_list={7:0}] [L758] return __VERIFIER_nondet_int(); [L768] RET, EXPR f6() VAL [a={3:0}, a={3:0}, a6={3:0}, f6()=0, ldv_global_msg_list={7:0}, p={1:0}, ret=3] [L768] ret = f6() [L769] COND FALSE !(ret<0) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={7:0}, p={1:0}, ret=0] [L771] CALL, EXPR g6() VAL [a6={3:0}, ldv_global_msg_list={7:0}] [L761] return __VERIFIER_nondet_int(); [L771] RET, EXPR g6() VAL [a={3:0}, a={3:0}, a6={3:0}, g6()=0, ldv_global_msg_list={7:0}, p={1:0}, ret=0] [L771] ret = g6() [L772] COND FALSE !(ret<0) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={7:0}, p={1:0}, ret=0] [L774] a->p = p VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={7:0}, p={1:0}, ret=0] [L775] return 0; VAL [\result=0, a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={7:0}, p={1:0}, ret=0] [L784] RET, EXPR probe1_6(&a6) VAL [a6={3:0}, ldv_global_msg_list={7:0}, probe1_6(&a6)=0] [L784] int ret = probe1_6(&a6); [L785] COND TRUE ret==0 VAL [a6={3:0}, ldv_global_msg_list={7:0}, ret=0] [L786] FCALL disconnect_2_6(&a6) VAL [a6={3:0}, ldv_global_msg_list={7:0}, ret=0] [L788] a6.p = 0 VAL [a6={3:0}, ldv_global_msg_list={7:0}, ret=0] [L791] RET entry_point() VAL [a6={3:0}, ldv_global_msg_list={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 51 procedures, 365 locations, 78 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 97.4s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 81.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 549 SDtfs, 706 SDslu, 1110 SDs, 0 SdLazy, 807 SolverSat, 244 SolverUnsat, 33 SolverUnknown, 0 SolverNotchecked, 69.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 564 GetRequests, 454 SyntacticMatches, 25 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 18.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred 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, 11 MinimizatonAttempts, 52 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 9.8s InterpolantComputationTime, 316 NumberOfCodeBlocks, 316 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 528 ConstructedInterpolants, 45 QuantifiedInterpolants, 73212 SizeOfPredicates, 37 NumberOfNonLiveVariables, 1247 ConjunctsInSsa, 101 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...