./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/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 0c4d407f41629f864eb5689f703f67280cbb5237 .................................................................................................................................. 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_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/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 0c4d407f41629f864eb5689f703f67280cbb5237 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:07:39,580 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:07:39,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:07:39,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:07:39,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:07:39,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:07:39,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:07:39,705 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:07:39,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:07:39,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:07:39,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:07:39,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:07:39,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:07:39,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:07:39,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:07:39,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:07:39,726 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:07:39,727 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:07:39,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:07:39,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:07:39,742 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:07:39,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:07:39,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:07:39,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:07:39,755 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:07:39,756 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:07:39,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:07:39,758 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:07:39,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:07:39,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:07:39,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:07:39,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:07:39,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:07:39,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:07:39,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:07:39,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:07:39,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:07:39,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:07:39,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:07:39,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:07:39,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:07:39,774 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-28 03:07:39,810 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:07:39,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:07:39,812 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:07:39,812 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:07:39,812 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:07:39,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:07:39,813 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:07:39,813 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:07:39,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:07:39,814 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:07:39,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:07:39,815 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 03:07:39,816 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 03:07:39,816 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 03:07:39,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:07:39,817 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 03:07:39,817 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:07:39,817 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:07:39,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:07:39,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:07:39,818 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:07:39,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:07:39,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:07:39,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:07:39,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:07:39,820 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:07:39,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:07:39,820 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:07:39,820 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_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c4d407f41629f864eb5689f703f67280cbb5237 [2020-11-28 03:07:40,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:07:40,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:07:40,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:07:40,168 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:07:40,169 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:07:40,170 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i [2020-11-28 03:07:40,235 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/bin/uautomizer/data/67ffced95/8cf9b1397fc04366b5c83da758b3667c/FLAG667767610 [2020-11-28 03:07:40,784 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:07:40,785 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i [2020-11-28 03:07:40,806 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/bin/uautomizer/data/67ffced95/8cf9b1397fc04366b5c83da758b3667c/FLAG667767610 [2020-11-28 03:07:41,086 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/bin/uautomizer/data/67ffced95/8cf9b1397fc04366b5c83da758b3667c [2020-11-28 03:07:41,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:07:41,091 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-28 03:07:41,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:07:41,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:07:41,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:07:41,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:07:41" (1/1) ... [2020-11-28 03:07:41,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29093fb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:41, skipping insertion in model container [2020-11-28 03:07:41,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:07:41" (1/1) ... [2020-11-28 03:07:41,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:07:41,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:07:41,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:07:41,633 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) [2020-11-28 03:07:41,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3b596d6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:41, skipping insertion in model container [2020-11-28 03:07:41,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:07:41,634 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-11-28 03:07:41,637 INFO L168 Benchmark]: Toolchain (without parser) took 544.58 ms. Allocated memory is still 111.1 MB. Free memory was 82.2 MB in the beginning and 84.9 MB in the end (delta: -2.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:07:41,638 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 111.1 MB. Free memory was 70.7 MB in the beginning and 70.6 MB in the end (delta: 49.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:07:41,639 INFO L168 Benchmark]: CACSL2BoogieTranslator took 537.52 ms. Allocated memory is still 111.1 MB. Free memory was 81.8 MB in the beginning and 84.9 MB in the end (delta: -3.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:07:41,645 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 111.1 MB. Free memory was 70.7 MB in the beginning and 70.6 MB in the end (delta: 49.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 537.52 ms. Allocated memory is still 111.1 MB. Free memory was 81.8 MB in the beginning and 84.9 MB in the end (delta: -3.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:07:43,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:07:43,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:07:43,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:07:43,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:07:43,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:07:43,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:07:43,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:07:43,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:07:43,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:07:43,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:07:43,998 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:07:43,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:07:44,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:07:44,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:07:44,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:07:44,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:07:44,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:07:44,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:07:44,009 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:07:44,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:07:44,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:07:44,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:07:44,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:07:44,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:07:44,039 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:07:44,040 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:07:44,042 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:07:44,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:07:44,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:07:44,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:07:44,045 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:07:44,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:07:44,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:07:44,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:07:44,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:07:44,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:07:44,051 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:07:44,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:07:44,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:07:44,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:07:44,054 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-11-28 03:07:44,101 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:07:44,102 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:07:44,105 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:07:44,105 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:07:44,105 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:07:44,105 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:07:44,106 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:07:44,106 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:07:44,106 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:07:44,106 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:07:44,107 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:07:44,107 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 03:07:44,107 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 03:07:44,108 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 03:07:44,108 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:07:44,108 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 03:07:44,108 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 03:07:44,108 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 03:07:44,109 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:07:44,109 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:07:44,109 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:07:44,109 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:07:44,109 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:07:44,110 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:07:44,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:07:44,110 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:07:44,110 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:07:44,110 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-28 03:07:44,110 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 03:07:44,111 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:07:44,111 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 03:07:44,111 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_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c4d407f41629f864eb5689f703f67280cbb5237 [2020-11-28 03:07:44,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:07:44,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:07:44,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:07:44,541 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:07:44,542 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:07:44,546 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i [2020-11-28 03:07:44,625 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/bin/uautomizer/data/7662164a4/61b3020e2cc14ab7a79c9670ff8ca0e9/FLAGc08362db2 [2020-11-28 03:07:45,289 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:07:45,291 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i [2020-11-28 03:07:45,312 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/bin/uautomizer/data/7662164a4/61b3020e2cc14ab7a79c9670ff8ca0e9/FLAGc08362db2 [2020-11-28 03:07:45,538 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/bin/uautomizer/data/7662164a4/61b3020e2cc14ab7a79c9670ff8ca0e9 [2020-11-28 03:07:45,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:07:45,544 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-28 03:07:45,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:07:45,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:07:45,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:07:45,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:07:45" (1/1) ... [2020-11-28 03:07:45,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1730458e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:45, skipping insertion in model container [2020-11-28 03:07:45,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:07:45" (1/1) ... [2020-11-28 03:07:45,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:07:45,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:07:46,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:07:46,161 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-28 03:07:46,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:07:46,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:07:46,279 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:07:46,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:07:46,475 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:07:46,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:46 WrapperNode [2020-11-28 03:07:46,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:07:46,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:07:46,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:07:46,477 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:07:46,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:46" (1/1) ... [2020-11-28 03:07:46,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:46" (1/1) ... [2020-11-28 03:07:46,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:46" (1/1) ... [2020-11-28 03:07:46,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:46" (1/1) ... [2020-11-28 03:07:46,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:46" (1/1) ... [2020-11-28 03:07:46,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:46" (1/1) ... [2020-11-28 03:07:46,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:46" (1/1) ... [2020-11-28 03:07:46,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:07:46,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:07:46,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:07:46,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:07:46,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/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 [2020-11-28 03:07:46,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-28 03:07:46,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:07:46,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-11-28 03:07:46,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-11-28 03:07:46,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-28 03:07:46,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-28 03:07:46,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-28 03:07:46,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-28 03:07:46,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-28 03:07:46,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2020-11-28 03:07:46,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2020-11-28 03:07:46,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-11-28 03:07:46,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-11-28 03:07:46,671 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-11-28 03:07:46,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-11-28 03:07:46,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-11-28 03:07:46,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-11-28 03:07:46,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-11-28 03:07:46,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-11-28 03:07:46,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2020-11-28 03:07:46,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2020-11-28 03:07:46,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2020-11-28 03:07:46,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2020-11-28 03:07:46,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2020-11-28 03:07:46,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2020-11-28 03:07:46,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2020-11-28 03:07:46,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2020-11-28 03:07:46,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2020-11-28 03:07:46,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2020-11-28 03:07:46,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2020-11-28 03:07:46,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2020-11-28 03:07:46,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2020-11-28 03:07:46,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2020-11-28 03:07:46,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2020-11-28 03:07:46,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2020-11-28 03:07:46,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2020-11-28 03:07:46,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2020-11-28 03:07:46,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2020-11-28 03:07:46,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2020-11-28 03:07:46,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2020-11-28 03:07:46,674 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-11-28 03:07:46,674 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-11-28 03:07:46,674 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2020-11-28 03:07:46,674 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-28 03:07:46,675 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-11-28 03:07:46,675 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-11-28 03:07:46,675 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-11-28 03:07:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-28 03:07:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-28 03:07:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-28 03:07:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-28 03:07:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-28 03:07:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-28 03:07:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-28 03:07:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-28 03:07:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-28 03:07:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-28 03:07:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-28 03:07:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-28 03:07:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-28 03:07:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-28 03:07:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-28 03:07:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-28 03:07:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-28 03:07:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-28 03:07:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-28 03:07:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-28 03:07:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-28 03:07:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-28 03:07:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-28 03:07:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-28 03:07:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-28 03:07:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-28 03:07:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-28 03:07:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-28 03:07:46,679 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-28 03:07:46,679 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-28 03:07:46,679 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-28 03:07:46,679 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-28 03:07:46,679 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-28 03:07:46,679 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-28 03:07:46,679 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-28 03:07:46,679 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-28 03:07:46,679 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-28 03:07:46,680 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-28 03:07:46,680 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-28 03:07:46,680 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-28 03:07:46,680 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-28 03:07:46,680 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-28 03:07:46,680 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-28 03:07:46,680 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-28 03:07:46,680 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-28 03:07:46,681 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-28 03:07:46,681 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-28 03:07:46,681 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-28 03:07:46,681 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-28 03:07:46,681 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-28 03:07:46,681 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-28 03:07:46,681 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-28 03:07:46,682 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-28 03:07:46,682 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-28 03:07:46,682 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-28 03:07:46,682 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-28 03:07:46,682 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-28 03:07:46,682 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-28 03:07:46,682 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-28 03:07:46,682 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-28 03:07:46,683 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-28 03:07:46,683 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-28 03:07:46,683 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-28 03:07:46,683 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-28 03:07:46,683 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-28 03:07:46,683 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-28 03:07:46,683 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-28 03:07:46,683 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-28 03:07:46,684 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-28 03:07:46,684 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-28 03:07:46,684 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-28 03:07:46,684 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-28 03:07:46,684 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-28 03:07:46,684 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-28 03:07:46,684 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-28 03:07:46,685 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-28 03:07:46,685 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-28 03:07:46,685 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-28 03:07:46,685 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-28 03:07:46,685 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-28 03:07:46,685 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-28 03:07:46,685 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-28 03:07:46,685 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-28 03:07:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-28 03:07:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-28 03:07:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-28 03:07:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-28 03:07:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-28 03:07:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-28 03:07:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-28 03:07:46,688 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-28 03:07:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-28 03:07:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-28 03:07:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-28 03:07:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-28 03:07:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-28 03:07:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-28 03:07:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-28 03:07:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-28 03:07:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-28 03:07:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-28 03:07:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-28 03:07:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-28 03:07:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-28 03:07:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-28 03:07:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-28 03:07:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-28 03:07:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-11-28 03:07:46,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-28 03:07:46,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2020-11-28 03:07:46,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2020-11-28 03:07:46,699 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-11-28 03:07:46,699 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-11-28 03:07:46,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-11-28 03:07:46,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 03:07:46,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-11-28 03:07:46,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-11-28 03:07:46,700 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-11-28 03:07:46,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 03:07:46,700 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-11-28 03:07:46,701 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-11-28 03:07:46,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-11-28 03:07:46,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 03:07:46,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-11-28 03:07:46,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-11-28 03:07:46,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2020-11-28 03:07:46,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2020-11-28 03:07:46,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-11-28 03:07:46,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2020-11-28 03:07:46,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:07:46,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2020-11-28 03:07:46,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2020-11-28 03:07:46,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2020-11-28 03:07:46,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2020-11-28 03:07:46,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2020-11-28 03:07:46,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-28 03:07:46,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-28 03:07:46,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2020-11-28 03:07:46,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2020-11-28 03:07:46,704 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-11-28 03:07:46,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2020-11-28 03:07:46,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2020-11-28 03:07:46,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2020-11-28 03:07:46,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2020-11-28 03:07:46,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2020-11-28 03:07:46,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2020-11-28 03:07:46,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2020-11-28 03:07:46,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2020-11-28 03:07:46,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2020-11-28 03:07:46,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2020-11-28 03:07:46,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2020-11-28 03:07:46,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-11-28 03:07:46,706 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-11-28 03:07:46,706 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-11-28 03:07:46,706 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2020-11-28 03:07:46,706 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-28 03:07:46,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-28 03:07:46,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:07:46,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-28 03:07:46,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:07:46,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-11-28 03:07:46,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-11-28 03:07:46,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-11-28 03:07:46,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2020-11-28 03:07:46,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2020-11-28 03:07:47,394 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 03:07:47,905 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 03:07:48,304 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:07:48,304 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-28 03:07:48,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:07:48 BoogieIcfgContainer [2020-11-28 03:07:48,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:07:48,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:07:48,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:07:48,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:07:48,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:07:45" (1/3) ... [2020-11-28 03:07:48,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@136d6cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:07:48, skipping insertion in model container [2020-11-28 03:07:48,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:46" (2/3) ... [2020-11-28 03:07:48,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@136d6cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:07:48, skipping insertion in model container [2020-11-28 03:07:48,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:07:48" (3/3) ... [2020-11-28 03:07:48,315 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test22_2-1.i [2020-11-28 03:07:48,325 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:07:48,330 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 71 error locations. [2020-11-28 03:07:48,341 INFO L253 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2020-11-28 03:07:48,370 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:07:48,370 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-28 03:07:48,370 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:07:48,370 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:07:48,370 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:07:48,371 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:07:48,371 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:07:48,371 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:07:48,388 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states. [2020-11-28 03:07:48,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:07:48,396 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:07:48,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:07:48,397 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-28 03:07:48,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:48,405 INFO L82 PathProgramCache]: Analyzing trace with hash -896940051, now seen corresponding path program 1 times [2020-11-28 03:07:48,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:07:48,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [381733602] [2020-11-28 03:07:48,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/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 [2020-11-28 03:07:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:48,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 03:07:48,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:07:48,733 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 [2020-11-28 03:07:48,733 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:07:48,740 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:07:48,741 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:07:48,741 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-28 03:07:48,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:48,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:07:48,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:48,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [381733602] [2020-11-28 03:07:48,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:07:48,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-28 03:07:48,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760384613] [2020-11-28 03:07:48,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:07:48,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:07:48,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:07:48,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:07:48,892 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 5 states. [2020-11-28 03:07:49,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:07:49,113 INFO L93 Difference]: Finished difference Result 74 states and 81 transitions. [2020-11-28 03:07:49,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:07:49,115 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-28 03:07:49,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:07:49,129 INFO L225 Difference]: With dead ends: 74 [2020-11-28 03:07:49,130 INFO L226 Difference]: Without dead ends: 71 [2020-11-28 03:07:49,131 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:07:49,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-28 03:07:49,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 65. [2020-11-28 03:07:49,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-11-28 03:07:49,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 72 transitions. [2020-11-28 03:07:49,181 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 72 transitions. Word has length 17 [2020-11-28 03:07:49,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:07:49,182 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 72 transitions. [2020-11-28 03:07:49,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:07:49,182 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 72 transitions. [2020-11-28 03:07:49,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:07:49,186 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:07:49,186 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:07:49,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 03:07:49,404 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-28 03:07:49,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:49,405 INFO L82 PathProgramCache]: Analyzing trace with hash -896940050, now seen corresponding path program 1 times [2020-11-28 03:07:49,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:07:49,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [906038378] [2020-11-28 03:07:49,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/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 [2020-11-28 03:07:49,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:49,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 03:07:49,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:07:49,671 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 [2020-11-28 03:07:49,671 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:07:49,686 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:07:49,686 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:07:49,687 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-11-28 03:07:49,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:49,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:07:50,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:50,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [906038378] [2020-11-28 03:07:50,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:07:50,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-11-28 03:07:50,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261559880] [2020-11-28 03:07:50,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-28 03:07:50,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:07:50,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 03:07:50,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:07:50,147 INFO L87 Difference]: Start difference. First operand 65 states and 72 transitions. Second operand 10 states. [2020-11-28 03:07:50,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:07:50,715 INFO L93 Difference]: Finished difference Result 70 states and 77 transitions. [2020-11-28 03:07:50,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:07:50,717 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-11-28 03:07:50,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:07:50,720 INFO L225 Difference]: With dead ends: 70 [2020-11-28 03:07:50,720 INFO L226 Difference]: Without dead ends: 70 [2020-11-28 03:07:50,721 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:07:50,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-11-28 03:07:50,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 65. [2020-11-28 03:07:50,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-11-28 03:07:50,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 71 transitions. [2020-11-28 03:07:50,731 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 71 transitions. Word has length 17 [2020-11-28 03:07:50,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:07:50,731 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 71 transitions. [2020-11-28 03:07:50,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-28 03:07:50,731 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 71 transitions. [2020-11-28 03:07:50,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:07:50,732 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:07:50,732 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:07:50,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 03:07:50,935 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-28 03:07:50,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:50,935 INFO L82 PathProgramCache]: Analyzing trace with hash -868310900, now seen corresponding path program 1 times [2020-11-28 03:07:50,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:07:50,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1915446594] [2020-11-28 03:07:50,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/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 [2020-11-28 03:07:51,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:51,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 03:07:51,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:07:51,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:51,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:07:51,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:51,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1915446594] [2020-11-28 03:07:51,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:07:51,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-28 03:07:51,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692993432] [2020-11-28 03:07:51,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:07:51,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:07:51,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:07:51,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:07:51,298 INFO L87 Difference]: Start difference. First operand 65 states and 71 transitions. Second operand 5 states. [2020-11-28 03:07:51,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:07:51,348 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2020-11-28 03:07:51,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:07:51,350 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-28 03:07:51,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:07:51,351 INFO L225 Difference]: With dead ends: 64 [2020-11-28 03:07:51,351 INFO L226 Difference]: Without dead ends: 64 [2020-11-28 03:07:51,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:07:51,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-11-28 03:07:51,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2020-11-28 03:07:51,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-11-28 03:07:51,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2020-11-28 03:07:51,361 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 17 [2020-11-28 03:07:51,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:07:51,362 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2020-11-28 03:07:51,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:07:51,362 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2020-11-28 03:07:51,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-28 03:07:51,363 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:07:51,363 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] [2020-11-28 03:07:51,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 03:07:51,580 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-28 03:07:51,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:51,581 INFO L82 PathProgramCache]: Analyzing trace with hash 2008128002, now seen corresponding path program 1 times [2020-11-28 03:07:51,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:07:51,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [235637602] [2020-11-28 03:07:51,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/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 [2020-11-28 03:07:51,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:51,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 03:07:51,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:07:51,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:51,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:07:51,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:51,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [235637602] [2020-11-28 03:07:51,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:07:51,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-28 03:07:51,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322545964] [2020-11-28 03:07:51,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:07:51,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:07:51,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:07:51,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:07:51,955 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand 5 states. [2020-11-28 03:07:51,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:07:51,977 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2020-11-28 03:07:51,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:07:51,978 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-11-28 03:07:51,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:07:51,980 INFO L225 Difference]: With dead ends: 64 [2020-11-28 03:07:51,980 INFO L226 Difference]: Without dead ends: 64 [2020-11-28 03:07:51,980 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 [2020-11-28 03:07:51,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-11-28 03:07:51,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2020-11-28 03:07:51,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-11-28 03:07:51,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2020-11-28 03:07:51,995 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 22 [2020-11-28 03:07:51,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:07:51,996 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2020-11-28 03:07:51,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:07:51,996 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2020-11-28 03:07:51,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-28 03:07:51,998 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:07:51,998 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] [2020-11-28 03:07:52,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-28 03:07:52,214 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-28 03:07:52,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:52,216 INFO L82 PathProgramCache]: Analyzing trace with hash 211176643, now seen corresponding path program 1 times [2020-11-28 03:07:52,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:07:52,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1181585515] [2020-11-28 03:07:52,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/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 [2020-11-28 03:07:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:52,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 03:07:52,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:07:52,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:52,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:07:52,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:52,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1181585515] [2020-11-28 03:07:52,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:07:52,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 03:07:52,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066940037] [2020-11-28 03:07:52,588 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:07:52,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:07:52,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:07:52,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:07:52,589 INFO L87 Difference]: Start difference. First operand 62 states and 65 transitions. Second operand 3 states. [2020-11-28 03:07:52,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:07:52,705 INFO L93 Difference]: Finished difference Result 68 states and 70 transitions. [2020-11-28 03:07:52,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:07:52,706 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-11-28 03:07:52,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:07:52,707 INFO L225 Difference]: With dead ends: 68 [2020-11-28 03:07:52,707 INFO L226 Difference]: Without dead ends: 58 [2020-11-28 03:07:52,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:07:52,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-11-28 03:07:52,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-11-28 03:07:52,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-11-28 03:07:52,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2020-11-28 03:07:52,712 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 22 [2020-11-28 03:07:52,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:07:52,713 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2020-11-28 03:07:52,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:07:52,713 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2020-11-28 03:07:52,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-28 03:07:52,714 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:07:52,714 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] [2020-11-28 03:07:52,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-28 03:07:52,931 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-28 03:07:52,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:52,931 INFO L82 PathProgramCache]: Analyzing trace with hash -45428445, now seen corresponding path program 1 times [2020-11-28 03:07:52,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:07:52,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2097208586] [2020-11-28 03:07:52,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/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 [2020-11-28 03:07:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:53,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:07:53,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:07:53,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:53,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:07:53,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:53,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2097208586] [2020-11-28 03:07:53,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:07:53,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-28 03:07:53,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650932398] [2020-11-28 03:07:53,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:07:53,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:07:53,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:07:53,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:07:53,234 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 6 states. [2020-11-28 03:07:53,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:07:53,284 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2020-11-28 03:07:53,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:07:53,289 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-11-28 03:07:53,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:07:53,290 INFO L225 Difference]: With dead ends: 64 [2020-11-28 03:07:53,290 INFO L226 Difference]: Without dead ends: 60 [2020-11-28 03:07:53,291 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:07:53,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-11-28 03:07:53,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-11-28 03:07:53,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-11-28 03:07:53,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2020-11-28 03:07:53,296 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 32 [2020-11-28 03:07:53,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:07:53,297 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2020-11-28 03:07:53,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:07:53,297 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2020-11-28 03:07:53,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-28 03:07:53,299 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:07:53,300 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:07:53,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-28 03:07:53,501 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-28 03:07:53,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:53,501 INFO L82 PathProgramCache]: Analyzing trace with hash -792080061, now seen corresponding path program 1 times [2020-11-28 03:07:53,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:07:53,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [165912029] [2020-11-28 03:07:53,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/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 [2020-11-28 03:07:53,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:53,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 03:07:53,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:07:53,765 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:53,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:07:53,930 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:53,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [165912029] [2020-11-28 03:07:53,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:07:53,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2020-11-28 03:07:53,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831347006] [2020-11-28 03:07:53,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-28 03:07:53,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:07:53,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 03:07:53,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:07:53,932 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand 10 states. [2020-11-28 03:07:54,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:07:54,174 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2020-11-28 03:07:54,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-28 03:07:54,176 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2020-11-28 03:07:54,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:07:54,177 INFO L225 Difference]: With dead ends: 68 [2020-11-28 03:07:54,177 INFO L226 Difference]: Without dead ends: 64 [2020-11-28 03:07:54,178 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2020-11-28 03:07:54,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-11-28 03:07:54,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-11-28 03:07:54,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-11-28 03:07:54,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 66 transitions. [2020-11-28 03:07:54,184 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 66 transitions. Word has length 34 [2020-11-28 03:07:54,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:07:54,184 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 66 transitions. [2020-11-28 03:07:54,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-28 03:07:54,185 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2020-11-28 03:07:54,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-11-28 03:07:54,186 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:07:54,186 INFO L422 BasicCegarLoop]: trace histogram [6, 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] [2020-11-28 03:07:54,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-28 03:07:54,393 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-28 03:07:54,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:54,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1102366333, now seen corresponding path program 2 times [2020-11-28 03:07:54,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:07:54,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2117902668] [2020-11-28 03:07:54,394 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/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 [2020-11-28 03:07:54,578 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-11-28 03:07:54,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-28 03:07:54,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-28 03:07:54,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:07:54,598 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 [2020-11-28 03:07:54,599 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:07:54,601 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:07:54,601 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:07:54,601 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-28 03:07:54,819 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-11-28 03:07:54,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:07:54,961 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-11-28 03:07:54,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2117902668] [2020-11-28 03:07:54,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:07:54,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2020-11-28 03:07:54,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281364518] [2020-11-28 03:07:54,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-28 03:07:54,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:07:54,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 03:07:54,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:07:54,964 INFO L87 Difference]: Start difference. First operand 64 states and 66 transitions. Second operand 12 states. [2020-11-28 03:07:55,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:07:55,597 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2020-11-28 03:07:55,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-28 03:07:55,598 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 38 [2020-11-28 03:07:55,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:07:55,599 INFO L225 Difference]: With dead ends: 63 [2020-11-28 03:07:55,599 INFO L226 Difference]: Without dead ends: 63 [2020-11-28 03:07:55,599 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2020-11-28 03:07:55,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-11-28 03:07:55,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-11-28 03:07:55,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-11-28 03:07:55,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 65 transitions. [2020-11-28 03:07:55,604 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 65 transitions. Word has length 38 [2020-11-28 03:07:55,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:07:55,605 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 65 transitions. [2020-11-28 03:07:55,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-28 03:07:55,605 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 65 transitions. [2020-11-28 03:07:55,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-11-28 03:07:55,606 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:07:55,606 INFO L422 BasicCegarLoop]: trace histogram [6, 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] [2020-11-28 03:07:55,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-28 03:07:55,807 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-28 03:07:55,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:55,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1102366332, now seen corresponding path program 1 times [2020-11-28 03:07:55,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:07:55,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [773393887] [2020-11-28 03:07:55,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/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 [2020-11-28 03:07:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:07:56,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-28 03:07:56,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:07:56,159 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:56,159 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:07:56,597 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:07:56,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [773393887] [2020-11-28 03:07:56,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:07:56,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2020-11-28 03:07:56,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117458925] [2020-11-28 03:07:56,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-28 03:07:56,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:07:56,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-28 03:07:56,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2020-11-28 03:07:56,599 INFO L87 Difference]: Start difference. First operand 63 states and 65 transitions. Second operand 18 states. [2020-11-28 03:07:57,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:07:57,615 INFO L93 Difference]: Finished difference Result 75 states and 83 transitions. [2020-11-28 03:07:57,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-11-28 03:07:57,619 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 38 [2020-11-28 03:07:57,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:07:57,621 INFO L225 Difference]: With dead ends: 75 [2020-11-28 03:07:57,626 INFO L226 Difference]: Without dead ends: 71 [2020-11-28 03:07:57,627 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2020-11-28 03:07:57,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-28 03:07:57,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-11-28 03:07:57,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-28 03:07:57,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 73 transitions. [2020-11-28 03:07:57,638 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 73 transitions. Word has length 38 [2020-11-28 03:07:57,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:07:57,638 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 73 transitions. [2020-11-28 03:07:57,638 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-11-28 03:07:57,638 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2020-11-28 03:07:57,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-28 03:07:57,641 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:07:57,642 INFO L422 BasicCegarLoop]: trace histogram [14, 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] [2020-11-28 03:07:57,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-28 03:07:57,855 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-28 03:07:57,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:57,855 INFO L82 PathProgramCache]: Analyzing trace with hash 2064886276, now seen corresponding path program 2 times [2020-11-28 03:07:57,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:07:57,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823645207] [2020-11-28 03:07:57,856 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/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 [2020-11-28 03:07:58,049 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-11-28 03:07:58,049 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-28 03:07:58,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 24 conjunts are in the unsatisfiable core [2020-11-28 03:07:58,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:07:58,070 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 [2020-11-28 03:07:58,070 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:07:58,076 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:07:58,076 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:07:58,077 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-11-28 03:07:58,328 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-11-28 03:07:58,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:07:59,425 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-11-28 03:07:59,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [823645207] [2020-11-28 03:07:59,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:07:59,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2020-11-28 03:07:59,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992792729] [2020-11-28 03:07:59,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-28 03:07:59,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:07:59,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-28 03:07:59,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2020-11-28 03:07:59,428 INFO L87 Difference]: Start difference. First operand 71 states and 73 transitions. Second operand 23 states. [2020-11-28 03:08:00,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:00,942 INFO L93 Difference]: Finished difference Result 70 states and 72 transitions. [2020-11-28 03:08:00,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-28 03:08:00,947 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 46 [2020-11-28 03:08:00,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:00,948 INFO L225 Difference]: With dead ends: 70 [2020-11-28 03:08:00,948 INFO L226 Difference]: Without dead ends: 70 [2020-11-28 03:08:00,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 68 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2020-11-28 03:08:00,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-11-28 03:08:00,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-11-28 03:08:00,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-11-28 03:08:00,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 72 transitions. [2020-11-28 03:08:00,954 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 72 transitions. Word has length 46 [2020-11-28 03:08:00,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:00,954 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 72 transitions. [2020-11-28 03:08:00,954 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-11-28 03:08:00,954 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 72 transitions. [2020-11-28 03:08:00,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-28 03:08:00,956 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:00,956 INFO L422 BasicCegarLoop]: trace histogram [14, 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] [2020-11-28 03:08:01,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-11-28 03:08:01,167 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-28 03:08:01,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:01,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1743926468, now seen corresponding path program 1 times [2020-11-28 03:08:01,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:08:01,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1482756306] [2020-11-28 03:08:01,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/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 [2020-11-28 03:08:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:01,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 17 conjunts are in the unsatisfiable core [2020-11-28 03:08:01,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:08:01,784 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:01,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:08:02,877 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:02,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1482756306] [2020-11-28 03:08:02,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:08:02,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2020-11-28 03:08:02,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721312787] [2020-11-28 03:08:02,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-11-28 03:08:02,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:08:02,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-11-28 03:08:02,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2020-11-28 03:08:02,879 INFO L87 Difference]: Start difference. First operand 70 states and 72 transitions. Second operand 34 states. [2020-11-28 03:08:03,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:03,601 INFO L93 Difference]: Finished difference Result 76 states and 78 transitions. [2020-11-28 03:08:03,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-28 03:08:03,601 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 51 [2020-11-28 03:08:03,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:03,602 INFO L225 Difference]: With dead ends: 76 [2020-11-28 03:08:03,602 INFO L226 Difference]: Without dead ends: 72 [2020-11-28 03:08:03,603 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=250, Invalid=940, Unknown=0, NotChecked=0, Total=1190 [2020-11-28 03:08:03,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-11-28 03:08:03,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-11-28 03:08:03,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-11-28 03:08:03,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 74 transitions. [2020-11-28 03:08:03,619 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 74 transitions. Word has length 51 [2020-11-28 03:08:03,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:03,620 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 74 transitions. [2020-11-28 03:08:03,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-11-28 03:08:03,620 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2020-11-28 03:08:03,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-28 03:08:03,625 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:03,625 INFO L422 BasicCegarLoop]: trace histogram [16, 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] [2020-11-28 03:08:03,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-11-28 03:08:03,839 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-28 03:08:03,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:03,839 INFO L82 PathProgramCache]: Analyzing trace with hash 845780764, now seen corresponding path program 2 times [2020-11-28 03:08:03,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:08:03,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1224444362] [2020-11-28 03:08:03,841 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/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 [2020-11-28 03:08:04,074 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-11-28 03:08:04,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-28 03:08:04,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-28 03:08:04,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:08:04,104 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 [2020-11-28 03:08:04,104 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:08:04,108 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:08:04,108 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:08:04,108 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-28 03:08:04,303 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2020-11-28 03:08:04,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:08:04,449 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2020-11-28 03:08:04,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1224444362] [2020-11-28 03:08:04,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:04,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2020-11-28 03:08:04,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432796070] [2020-11-28 03:08:04,451 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-28 03:08:04,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:08:04,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 03:08:04,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:08:04,452 INFO L87 Difference]: Start difference. First operand 72 states and 74 transitions. Second operand 12 states. [2020-11-28 03:08:04,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:04,996 INFO L93 Difference]: Finished difference Result 70 states and 72 transitions. [2020-11-28 03:08:04,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-28 03:08:04,997 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 53 [2020-11-28 03:08:04,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:04,997 INFO L225 Difference]: With dead ends: 70 [2020-11-28 03:08:04,997 INFO L226 Difference]: Without dead ends: 70 [2020-11-28 03:08:04,998 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 90 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2020-11-28 03:08:04,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-11-28 03:08:05,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-11-28 03:08:05,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-11-28 03:08:05,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 72 transitions. [2020-11-28 03:08:05,003 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 72 transitions. Word has length 53 [2020-11-28 03:08:05,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:05,003 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 72 transitions. [2020-11-28 03:08:05,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-28 03:08:05,003 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 72 transitions. [2020-11-28 03:08:05,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-28 03:08:05,004 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:05,005 INFO L422 BasicCegarLoop]: trace histogram [16, 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] [2020-11-28 03:08:05,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-11-28 03:08:05,215 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-28 03:08:05,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:05,216 INFO L82 PathProgramCache]: Analyzing trace with hash 845780765, now seen corresponding path program 1 times [2020-11-28 03:08:05,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:08:05,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1662903141] [2020-11-28 03:08:05,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/bin/uautomizer/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-11-28 03:08:05,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:05,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 24 conjunts are in the unsatisfiable core [2020-11-28 03:08:05,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:08:05,460 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 [2020-11-28 03:08:05,460 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:08:05,469 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:08:05,469 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:08:05,469 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-11-28 03:08:05,796 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2020-11-28 03:08:05,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:08:06,813 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2020-11-28 03:08:06,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1662903141] [2020-11-28 03:08:06,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:06,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2020-11-28 03:08:06,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912359195] [2020-11-28 03:08:06,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-28 03:08:06,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:08:06,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-28 03:08:06,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2020-11-28 03:08:06,816 INFO L87 Difference]: Start difference. First operand 70 states and 72 transitions. Second operand 23 states. [2020-11-28 03:08:08,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:08,149 INFO L93 Difference]: Finished difference Result 68 states and 70 transitions. [2020-11-28 03:08:08,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-28 03:08:08,150 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 53 [2020-11-28 03:08:08,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:08,151 INFO L225 Difference]: With dead ends: 68 [2020-11-28 03:08:08,151 INFO L226 Difference]: Without dead ends: 68 [2020-11-28 03:08:08,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 80 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2020-11-28 03:08:08,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-11-28 03:08:08,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-11-28 03:08:08,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-28 03:08:08,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 70 transitions. [2020-11-28 03:08:08,156 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 70 transitions. Word has length 53 [2020-11-28 03:08:08,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:08,156 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 70 transitions. [2020-11-28 03:08:08,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-11-28 03:08:08,156 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 70 transitions. [2020-11-28 03:08:08,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-28 03:08:08,157 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:08,157 INFO L422 BasicCegarLoop]: trace histogram [16, 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] [2020-11-28 03:08:08,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2020-11-28 03:08:08,358 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-28 03:08:08,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:08,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1516815243, now seen corresponding path program 1 times [2020-11-28 03:08:08,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:08:08,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094692927] [2020-11-28 03:08:08,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/bin/uautomizer/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2020-11-28 03:08:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:08,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 03:08:08,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:08:08,669 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2020-11-28 03:08:08,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:08:08,934 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2020-11-28 03:08:08,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2094692927] [2020-11-28 03:08:08,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:08,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2020-11-28 03:08:08,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726330475] [2020-11-28 03:08:08,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:08:08,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:08:08,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:08:08,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:08:08,936 INFO L87 Difference]: Start difference. First operand 68 states and 70 transitions. Second operand 8 states. [2020-11-28 03:08:08,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:08,989 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2020-11-28 03:08:08,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:08:08,989 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-11-28 03:08:08,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:08,990 INFO L225 Difference]: With dead ends: 70 [2020-11-28 03:08:08,990 INFO L226 Difference]: Without dead ends: 68 [2020-11-28 03:08:08,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:08:08,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-11-28 03:08:08,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-11-28 03:08:08,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-28 03:08:08,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2020-11-28 03:08:08,994 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 51 [2020-11-28 03:08:08,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:08,994 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2020-11-28 03:08:08,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:08:08,994 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2020-11-28 03:08:08,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-28 03:08:08,995 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:08,996 INFO L422 BasicCegarLoop]: trace histogram [16, 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] [2020-11-28 03:08:09,196 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2020-11-28 03:08:09,196 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-28 03:08:09,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:09,197 INFO L82 PathProgramCache]: Analyzing trace with hash 240473020, now seen corresponding path program 1 times [2020-11-28 03:08:09,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:08:09,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [73575177] [2020-11-28 03:08:09,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/bin/uautomizer/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2020-11-28 03:08:09,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:09,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-28 03:08:09,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:08:09,618 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2020-11-28 03:08:09,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:08:09,924 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-28 03:08:09,988 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2020-11-28 03:08:09,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [73575177] [2020-11-28 03:08:09,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:09,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2020-11-28 03:08:09,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521706842] [2020-11-28 03:08:09,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-28 03:08:09,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:08:09,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-28 03:08:09,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:08:09,990 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 11 states. [2020-11-28 03:08:10,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:10,119 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2020-11-28 03:08:10,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:08:10,119 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2020-11-28 03:08:10,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:10,120 INFO L225 Difference]: With dead ends: 72 [2020-11-28 03:08:10,120 INFO L226 Difference]: Without dead ends: 68 [2020-11-28 03:08:10,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-11-28 03:08:10,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-11-28 03:08:10,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-11-28 03:08:10,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-28 03:08:10,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2020-11-28 03:08:10,124 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 56 [2020-11-28 03:08:10,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:10,124 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2020-11-28 03:08:10,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-28 03:08:10,124 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2020-11-28 03:08:10,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-11-28 03:08:10,125 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:10,125 INFO L422 BasicCegarLoop]: trace histogram [16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:10,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2020-11-28 03:08:10,334 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2020-11-28 03:08:10,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:10,335 INFO L82 PathProgramCache]: Analyzing trace with hash 214334517, now seen corresponding path program 1 times [2020-11-28 03:08:10,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:08:10,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1415680165] [2020-11-28 03:08:10,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ed4b7689-dd4b-41b1-af4f-3cb4d6137de8/bin/uautomizer/mathsat Starting monitored process 17 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with mathsat -unsat_core_generation=3 [2020-11-28 03:08:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:08:10,684 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:08:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:08:10,814 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:08:10,888 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-28 03:08:10,889 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:08:11,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3 [2020-11-28 03:08:11,111 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2020-11-28 03:08:11,115 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-11-28 03:08:11,120 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 17bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2020-11-28 03:08:11,121 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 19bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2020-11-28 03:08:11,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:08:11 BoogieIcfgContainer [2020-11-28 03:08:11,136 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:08:11,136 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:08:11,136 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:08:11,136 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:08:11,137 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:07:48" (3/4) ... [2020-11-28 03:08:11,140 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:08:11,140 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:08:11,141 INFO L168 Benchmark]: Toolchain (without parser) took 25597.56 ms. Allocated memory was 48.2 MB in the beginning and 142.6 MB in the end (delta: 94.4 MB). Free memory was 24.2 MB in the beginning and 45.7 MB in the end (delta: -21.5 MB). Peak memory consumption was 75.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:11,142 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 48.2 MB. Free memory was 30.6 MB in the beginning and 30.6 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:11,142 INFO L168 Benchmark]: CACSL2BoogieTranslator took 929.00 ms. Allocated memory was 48.2 MB in the beginning and 65.0 MB in the end (delta: 16.8 MB). Free memory was 23.9 MB in the beginning and 40.1 MB in the end (delta: -16.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:11,143 INFO L168 Benchmark]: Boogie Preprocessor took 121.83 ms. Allocated memory is still 65.0 MB. Free memory was 40.1 MB in the beginning and 35.3 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:11,143 INFO L168 Benchmark]: RCFGBuilder took 1706.18 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 35.3 MB in the beginning and 52.2 MB in the end (delta: -16.8 MB). Peak memory consumption was 19.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:11,144 INFO L168 Benchmark]: TraceAbstraction took 22827.20 ms. Allocated memory was 79.7 MB in the beginning and 142.6 MB in the end (delta: 62.9 MB). Free memory was 51.7 MB in the beginning and 45.7 MB in the end (delta: 6.0 MB). Peak memory consumption was 68.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:11,144 INFO L168 Benchmark]: Witness Printer took 4.19 ms. Allocated memory is still 142.6 MB. Free memory is still 45.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:11,146 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 48.2 MB. Free memory was 30.6 MB in the beginning and 30.6 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 929.00 ms. Allocated memory was 48.2 MB in the beginning and 65.0 MB in the end (delta: 16.8 MB). Free memory was 23.9 MB in the beginning and 40.1 MB in the end (delta: -16.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 121.83 ms. Allocated memory is still 65.0 MB. Free memory was 40.1 MB in the beginning and 35.3 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1706.18 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 35.3 MB in the beginning and 52.2 MB in the end (delta: -16.8 MB). Peak memory consumption was 19.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 22827.20 ms. Allocated memory was 79.7 MB in the beginning and 142.6 MB in the end (delta: 62.9 MB). Free memory was 51.7 MB in the beginning and 45.7 MB in the end (delta: 6.0 MB). Peak memory consumption was 68.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.19 ms. Allocated memory is still 142.6 MB. Free memory is still 45.7 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 free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - 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 17bv32 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 19bv32 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: 761]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 761. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={3:0}] [L762] CALL entry_point() VAL [ldv_global_msg_list={3:0}] [L758] struct ldv_kobject *kobj; VAL [ldv_global_msg_list={3:0}] [L759] CALL, EXPR ldv_kobject_create() VAL [ldv_global_msg_list={3:0}] [L740] struct ldv_kobject *kobj; VAL [ldv_global_msg_list={3:0}] [L741] CALL, EXPR ldv_malloc(sizeof(*kobj)) VAL [\old(size)=16, ldv_global_msg_list={3:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); VAL [\old(size)=16, \result={1:0}, ldv_global_msg_list={3:0}, malloc(size)={1:0}, size=16] [L741] RET, EXPR ldv_malloc(sizeof(*kobj)) VAL [ldv_global_msg_list={3:0}, ldv_malloc(sizeof(*kobj))={1:0}] [L741] kobj = ldv_malloc(sizeof(*kobj)) [L742] COND FALSE !(!kobj) VAL [kobj={1:0}, ldv_global_msg_list={3:0}] [L744] FCALL memset(kobj, 0, sizeof(*kobj)) VAL [kobj={1:0}, ldv_global_msg_list={3:0}, memset(kobj, 0, sizeof(*kobj))={1:0}] [L745] CALL ldv_kobject_init(kobj) VAL [kobj={1:0}, ldv_global_msg_list={3:0}] [L730] COND FALSE !(!kobj) VAL [kobj={1:0}, kobj={1:0}, ldv_global_msg_list={3:0}] [L733] CALL ldv_kobject_init_internal(kobj) VAL [kobj={1:0}, ldv_global_msg_list={3:0}] [L723] COND FALSE !(!kobj) VAL [kobj={1:0}, kobj={1:0}, ldv_global_msg_list={3:0}] [L725] CALL ldv_kref_init(&kobj->kref) VAL [kref={1:12}, ldv_global_msg_list={3:0}] [L682] ((&kref->refcount)->counter) = (1) VAL [kref={1:12}, kref={1:12}, ldv_global_msg_list={3:0}] [L725] RET ldv_kref_init(&kobj->kref) VAL [kobj={1:0}, kobj={1:0}, ldv_global_msg_list={3:0}] [L726] CALL LDV_INIT_LIST_HEAD(&kobj->entry) VAL [ldv_global_msg_list={3:0}, list={1:4}] [L540] list->next = list VAL [ldv_global_msg_list={3:0}, list={1:4}, list={1:4}] [L541] list->prev = list VAL [ldv_global_msg_list={3:0}, list={1:4}, list={1:4}] [L726] RET LDV_INIT_LIST_HEAD(&kobj->entry) VAL [kobj={1:0}, kobj={1:0}, ldv_global_msg_list={3:0}] [L733] RET ldv_kobject_init_internal(kobj) VAL [kobj={1:0}, kobj={1:0}, ldv_global_msg_list={3:0}] [L745] RET ldv_kobject_init(kobj) VAL [kobj={1:0}, ldv_global_msg_list={3:0}] [L746] return kobj; VAL [\result={1:0}, kobj={1:0}, ldv_global_msg_list={3:0}] [L759] RET, EXPR ldv_kobject_create() VAL [ldv_global_msg_list={3:0}, ldv_kobject_create()={1:0}] [L759] kobj = ldv_kobject_create() [L762] RET entry_point() VAL [ldv_global_msg_list={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 330 locations, 71 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 22.7s, OverallIterations: 16, TraceHistogramMax: 16, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 760 SDtfs, 365 SDslu, 4374 SDs, 0 SdLazy, 2382 SolverSat, 158 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1109 GetRequests, 905 SyntacticMatches, 19 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 6.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred 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, 15 MinimizatonAttempts, 15 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 7.8s InterpolantComputationTime, 614 NumberOfCodeBlocks, 578 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1064 ConstructedInterpolants, 88 QuantifiedInterpolants, 151870 SizeOfPredicates, 48 NumberOfNonLiveVariables, 2290 ConjunctsInSsa, 158 ConjunctsInUnsatCore, 30 InterpolantComputations, 24 PerfectInterpolantSequences, 1340/1598 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...